64DD disk loading support for SummerCart64 (#49) (and other fixes/improvements)

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## Description
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## Motivation and Context
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## How Has This Been Tested?
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## Types of changes
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the boxes that apply: -->
- [ ] Improvement (non-breaking change that adds a new feature)
- [ ] Bug fix (fixes an issue)
- [ ] Breaking change (breaking change)
- [ ] Config and build (change in the configuration and build system,
has no impact on code or features)

## Checklist:
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that apply. -->
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- [ ] My code follows the code style of this project.
- [ ] My change requires a change to the documentation.
- [ ] I have updated the documentation accordingly.
- [ ] I have added tests to cover my changes.
- [ ] All new and existing tests passed.

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Signed-off-by: GITHUB_USER <GITHUB_USER_EMAIL>

---------

Signed-off-by: Polprzewodnikowy <sc@mateuszfaderewski.pl>
Co-authored-by: Robin Jones <networkfusion@users.noreply.github.com>

.devcontainer/Dockerfile

@@ -6,9 +6,9 @@ RUN apt-get update && \
     wget https://github.com/DragonMinded/libdragon/releases/download/toolchain-continuous-prerelease/gcc-toolchain-mips64-x86_64.deb && \
     dpkg -i gcc-toolchain-mips64-x86_64.deb && \
     rm gcc-toolchain-mips64-x86_64.deb && \
-    wget https://github.com/Polprzewodnikowy/SummerCart64/releases/download/v2.16.0/sc64-deployer-linux-v2.16.0.tar.gz && \
+    wget https://github.com/Polprzewodnikowy/SummerCart64/releases/download/v2.17.0/sc64-deployer-linux-v2.17.0.tar.gz && \
-    tar -xf sc64-deployer-linux-v2.16.0.tar.gz -C /usr/local/bin && \
+    tar -xf sc64-deployer-linux-v2.17.0.tar.gz -C /usr/local/bin && \
-    rm sc64-deployer-linux-v2.16.0.tar.gz && \
+    rm sc64-deployer-linux-v2.17.0.tar.gz && \
     git config --global --add safe.directory "*" && \
     SNIPPET="export PROMPT_COMMAND='history -a' && export HISTFILE=/commandhistory/.bash_history" && \
     echo "$SNIPPET" >> "/root/.bashrc"

Makefile

@@ -14,6 +14,7 @@ N64_CFLAGS += -iquote $(SOURCE_DIR) -iquote $(ASSETS_DIR) -I $(SOURCE_DIR)/libs
 SRCS = \
 	main.c \
 	boot/boot.c \
+	boot/cic.c \
 	boot/crc32.c \
 	boot/reboot.S \
 	flashcart/64drive/64drive_ll.c \
@@ -22,7 +23,6 @@ SRCS = \
 	flashcart/flashcart.c \
 	flashcart/sc64/sc64_ll.c \
 	flashcart/sc64/sc64.c \
-	hdmi/hdmi.c \
 	libs/libspng/spng/spng.c \
 	libs/mini.c/src/mini.c \
 	libs/miniz/miniz_tdef.c \
@@ -36,12 +36,14 @@ SRCS = \
 	menu/components/common.c \
 	menu/components/context_menu.c \
 	menu/components/file_list.c \
+	menu/disk_info.c \
 	menu/fonts.c \
+	menu/hdmi.c \
 	menu/menu.c \
 	menu/mp3_player.c \
 	menu/path.c \
 	menu/png_decoder.c \
-	menu/rom_database.c \
+	menu/rom_info.c \
 	menu/settings.c \
 	menu/sound.c \
 	menu/usb_comm.c \
@@ -51,6 +53,7 @@ SRCS = \
 	menu/views/fault.c \
 	menu/views/file_info.c \
 	menu/views/image_viewer.c \
+	menu/views/load_disk.c \
 	menu/views/load_emulator.c \
 	menu/views/load_rom.c \
 	menu/views/music_player.c \

README.md

@@ -12,6 +12,7 @@ An open source menu for N64 flashcarts.
 ## Current (notable) menu features
 * Fully Open Source.
 * Loads all known N64 games (including iQue and Aleck64 ROMs (even if they are byteswapped)).
+* Fully emulates the 64DD and loads 64dd disks (SummerCart64 only).
 * Emulator support (NES, SNES, GB, GBC) ROMs.
 * N64 ROM box image support.
 * Background image (PNG) support.
@@ -31,12 +32,19 @@ Download the latest `menu.bin` file from the releases page, then put it in the r
 Ensure the cart has the latest [firmware](https://github.com/Polprzewodnikowy/SummerCart64/releases/latest) installed.
 Download the latest `sc64menu.n64` file from the releases page, then put it in the root directory of your SD card.
 
+#### 64DD disk support
+For the ability to load and run 64DD disk images, you need to add the folder `/menu/64ddipl` on the SD card.
+Download and add the relevant ipl files and rename them before adding the folder:
+`NDDE0.n64` the US Prototype IPL can be downloaded from [here](https://64dd.org/dumps/64DD_IPL_US_MJR.n64)
+`NDXJ0.n64` the JPN Development IPL can be downloaded from [here](https://64dd.org/dumps/64DD_IPL_DEV_H4G.n64)
+`NDDJ2.n64` the JPN Retail IPL can be downloaded from [here](https://64dd.org/dumps/N64DD_IPLROM_(J).zip)
+
 ### ED64 & ED64P
 Currently not supported, but there is an aim to do so.
 The aim is to replace [Altra64](https://github.com/networkfusion/altra64) and [ED64-UnofficialOS](https://github.com/n64-tools/ED64-UnofficialOS-binaries).
 
 
-### Common to all
+### Common to all flashcarts
 
 #### ROM Boxart
 To use boxart, you need to place png files of size 158x112 in the folder `/menu/boxart` on the SD card.
@@ -46,7 +54,7 @@ i.e. for GoldenEye 3 letters, this would be `NGE.png`.
 A known set of PNG files using 2 letter ID's can be downloaded [here](https://mega.nz/file/6cNGwSqI#8X5ukb65n3YMlGaUtSOGXkKo9HxVnnMOgqn94Epcr7w).
 
 #### Emulator support
-Emulators should be added to the `/emulators` directory on the SD card.
+Emulators should be added to the `/menu/emulators` directory on the SD card.
 
 Menu currently supports the following emulators and associated ROM file names:
  - **NES**: [neon64v2](https://github.com/hcs64/neon64v2) by *hcs64* - `neon64bu.rom`
@@ -63,11 +71,11 @@ You can use a dev container in VSCode to ease development.
 
 ## To deploy:
 ### SC64
-* Download the deployer [here](https://github.com/Polprzewodnikowy/SummerCart64/releases/download/v2.16.0/sc64-deployer-windows-v2.16.0.zip)
+* Download the deployer [here](https://github.com/Polprzewodnikowy/SummerCart64/releases/download/v2.17.0/sc64-deployer-windows-v2.17.0.zip)
 * Extract and place `sc64deployer.exe` in the `tools/sc64` directory.
 
-Make sure that your firmware is compatible (currently v2.16.0+)
+Make sure that your firmware is compatible (currently v2.17.0+)
-See: https://github.com/Polprzewodnikowy/SummerCart64/blob/v2.16.0/docs/00_quick_startup_guide.md#firmware-backupupdate
+See: https://github.com/Polprzewodnikowy/SummerCart64/blob/v2.17.0/docs/00_quick_startup_guide.md#firmware-backupupdate
 
 
 #### From the devcontainer

libdragon

@@ -1 +1 @@
-Subproject commit 352679922bad5403f8ea4b9123dfe0403d030bc2
+Subproject commit dd2202a6082cd3d92f4c22e64b27f148612c4c3a

src/boot/boot.c

@@ -1,8 +1,8 @@
 #include <libdragon.h>
 
-#include "boot.h"
 #include "boot_io.h"
-#include "crc32.h"
+#include "boot.h"
+#include "cic.h"
 
 
 #define C0_STATUS_FR    (1 << 26)
@@ -14,71 +14,34 @@ extern uint32_t reboot_start __attribute__((section(".text")));
 extern size_t reboot_size __attribute__((section(".text")));
 
 
-typedef struct {
-    const uint32_t crc32;
-    const uint8_t seed;
-} ipl3_crc32_t;
-
-static const ipl3_crc32_t ipl3_crc32[] = {
-    { .crc32 = 0x587BD543, .seed = 0xAC },  // 5101
-    { .crc32 = 0x6170A4A1, .seed = 0x3F },  // 6101
-    { .crc32 = 0x009E9EA3, .seed = 0x3F },  // 7102
-    { .crc32 = 0x90BB6CB5, .seed = 0x3F },  // 6102/7101
-    { .crc32 = 0x0B050EE0, .seed = 0x78 },  // x103
-    { .crc32 = 0x98BC2C86, .seed = 0x91 },  // x105
-    { .crc32 = 0xACC8580A, .seed = 0x85 },  // x106
-    { .crc32 = 0x0E018159, .seed = 0xDD },  // 5167
-    { .crc32 = 0x10C68B18, .seed = 0xDD },  // NDXJ0
-    { .crc32 = 0xBC605D0A, .seed = 0xDD },  // NDDJ0
-    { .crc32 = 0x502C4466, .seed = 0xDD },  // NDDJ1
-    { .crc32 = 0x0C965795, .seed = 0xDD },  // NDDJ2
-    { .crc32 = 0x8FEBA21E, .seed = 0xDE },  // NDDE0
-};
-
-
 static io32_t *boot_get_device_base (boot_params_t *params) {
     io32_t *device_base_address = ROM_CART;
-    if (params->device_type == BOOT_DEVICE_TYPE_DD) {
+    if (params->device_type == BOOT_DEVICE_TYPE_64DD) {
         device_base_address = ROM_DDIPL;
     }
     return device_base_address;
 }
 
-static bool boot_detect_cic_seed (boot_params_t *params) {
+static void boot_detect_cic_seed (boot_params_t *params) {
     io32_t *base = boot_get_device_base(params);
 
-    uint32_t ipl3[1008] __attribute__((aligned(8)));
+    uint8_t ipl3[IPL3_LENGTH] __attribute__((aligned(8)));
 
     data_cache_hit_writeback_invalidate(ipl3, sizeof(ipl3));
     dma_read_raw_async(ipl3, (uint32_t) (&base[16]), sizeof(ipl3));
     dma_wait();
 
-    uint32_t crc32 = crc32_calculate(ipl3, sizeof(ipl3));
+    params->cic_seed = cic_get_seed(cic_detect(ipl3));
-
-    for (int i = 0; i < sizeof(ipl3_crc32) / sizeof(ipl3_crc32_t); i++) {
-        if (ipl3_crc32[i].crc32 == crc32) {
-            params->cic_seed = ipl3_crc32[i].seed;
-            return true;
-        }
-    }
-
-    return false;
 }
 
 
-bool boot_is_warm (void) {
-    return (OS_INFO->reset_type == OS_INFO_RESET_TYPE_NMI);
-}
-
 void boot (boot_params_t *params) {
     if (params->tv_type == BOOT_TV_TYPE_PASSTHROUGH) {
         params->tv_type = OS_INFO->tv_type;
     }
 
     if (params->detect_cic_seed) {
-        if (!boot_detect_cic_seed(params)) {
+        boot_detect_cic_seed(params);
-            params->cic_seed = 0x3F;
-        }
     }
 
     OS_INFO->mem_size_6105 = OS_INFO->mem_size;
@@ -157,7 +120,7 @@ void boot (boot_params_t *params) {
 
     boot_device = (params->device_type & 0x01);
     tv_type = (params->tv_type & 0x03);
-    reset_type = BOOT_RESET_TYPE_COLD;
+    reset_type = BOOT_RESET_TYPE_NMI;
     cic_seed = (params->cic_seed & 0xFF);
     version = (params->tv_type == BOOT_TV_TYPE_PAL) ? 6
             : (params->tv_type == BOOT_TV_TYPE_NTSC) ? 1

src/boot/boot.h

@@ -15,7 +15,7 @@
 /** @brief Boot device type enumeration */
 typedef enum {
     BOOT_DEVICE_TYPE_ROM = 0,
-    BOOT_DEVICE_TYPE_DD = 1,
+    BOOT_DEVICE_TYPE_64DD = 1,
 } boot_device_type_t;
 
 /** @brief Reset type enumeration */

src/boot/cic.c

@@ -0,0 +1,56 @@
+#include "cic.h"
+#include "crc32.h"
+
+
+typedef struct {
+    const uint32_t crc32;
+    const cic_type_t type;
+} ipl3_crc32_t;
+
+static const ipl3_crc32_t ipl3_crc32[] = {
+    { .crc32 = 0x587BD543, .type = CIC_5101 },
+    { .crc32 = 0x0E018159, .type = CIC_5167 },
+    { .crc32 = 0x6170A4A1, .type = CIC_6101 },
+    { .crc32 = 0x009E9EA3, .type = CIC_7102 },
+    { .crc32 = 0x90BB6CB5, .type = CIC_6102_7101 },
+    { .crc32 = 0x0B050EE0, .type = CIC_x103 },
+    { .crc32 = 0x98BC2C86, .type = CIC_x105 },
+    { .crc32 = 0xACC8580A, .type = CIC_x106 },
+    { .crc32 = 0xBC605D0A, .type = CIC_8301 },
+    { .crc32 = 0x502C4466, .type = CIC_8302 },
+    { .crc32 = 0x0C965795, .type = CIC_8303 },
+    { .crc32 = 0x10C68B18, .type = CIC_8401 },
+    { .crc32 = 0x8FEBA21E, .type = CIC_8501 },
+};
+
+
+cic_type_t cic_detect (uint8_t *ipl3) {
+    uint32_t crc32 = crc32_calculate(ipl3, IPL3_LENGTH);
+
+    for (int i = 0; i < sizeof(ipl3_crc32) / sizeof(ipl3_crc32_t); i++) {
+        if (ipl3_crc32[i].crc32 == crc32) {
+            return ipl3_crc32[i].type;
+        }
+    }
+
+    return CIC_UNKNOWN;
+}
+
+uint8_t cic_get_seed (cic_type_t cic_type) {
+    switch (cic_type) {
+        case CIC_5101: return 0xAC;
+        case CIC_5167: return 0xDD;
+        case CIC_6101: return 0x3F;
+        case CIC_7102: return 0x3F;
+        case CIC_6102_7101: return 0x3F;
+        case CIC_x103: return 0x78;
+        case CIC_x105: return 0x91;
+        case CIC_x106: return 0x85;
+        case CIC_8301: return 0xDD;
+        case CIC_8302: return 0xDD;
+        case CIC_8303: return 0xDD;
+        case CIC_8401: return 0xDD;
+        case CIC_8501: return 0xDE;
+        default: return 0x3F;
+    }
+}

src/boot/cic.h

@@ -0,0 +1,33 @@
+#ifndef CIC_H__
+#define CIC_H__
+
+
+#include <stdint.h>
+
+
+#define IPL3_LENGTH     (4032)
+
+
+typedef enum {
+    CIC_5101,
+    CIC_5167,
+    CIC_6101,
+    CIC_7102,
+    CIC_6102_7101,
+    CIC_x103,
+    CIC_x105,
+    CIC_x106,
+    CIC_8301,
+    CIC_8302,
+    CIC_8303,
+    CIC_8401,
+    CIC_8501,
+    CIC_UNKNOWN,
+} cic_type_t;
+
+
+cic_type_t cic_detect (uint8_t *ipl3);
+uint8_t cic_get_seed (cic_type_t cic_type);
+
+
+#endif

src/boot/reboot.S

@@ -2,20 +2,6 @@
 #define REBOOT_ADDRESS      0xA4001000
 #define STACK_ADDRESS       0xA4001FF0
 
-#define RI_ADDRESS          0xA4700000
-
-#define RI_MODE             0x00
-#define RI_CONFIG           0x04
-#define RI_CURRENT_LOAD     0x08
-#define RI_SELECT           0x0C
-#define RI_REFRESH          0x10
-#define RI_LATENCY          0x14
-
-#define RI_MODE_RESET       0x00000000
-#define RI_MODE_STANDBY     0x0000000E
-
-#define RDRAM_RESET_DELAY   1024
-#define RDRAM_STANDBY_DELAY 512
 
 .set noat
 .section .text.reboot, "ax", %progbits
@@ -43,39 +29,24 @@ reboot_entry:
 
     li $sp, STACK_ADDRESS
 
-    bnez $s5, reset_rdram_skip
+detect_console_region:
+    li $t0, 1
+    beq $s4, $zero, pal_console
+    beq $s4, $t0, ntsc_console
+    b mpal_console
 
-reset_rdram:
+pal_console:
-    li $t0, RI_ADDRESS
+    li $ra, 0xA4001554
+    b reset_registers
 
-    li $t1, RI_MODE_RESET
+ntsc_console:
-    sw $t1, RI_MODE($t0)
+    li $ra, 0xA4001550
+    b reset_registers
 
-    li $t2, RDRAM_RESET_DELAY
+mpal_console:
-1:
+    li $ra, 0xA4001554
-    addiu $t2, (-1)
-    bnez $t2, 1b
-
-    sw $zero, RI_CONFIG($t0)
-    sw $zero, RI_CURRENT_LOAD($t0)
-    sw $zero, RI_SELECT($t0)
-    sw $zero, RI_REFRESH($t0)
-
-    li $t1, RI_MODE_STANDBY
-    sw $t1, RI_MODE($t0)
-
-    li $t2, RDRAM_STANDBY_DELAY
-1:
-    addiu $t2, (-1)
-    bnez $t2, 1b
-reset_rdram_skip:
-
-prepare_registers:
-    la $t0, ra_table
-    sll $t1, $s4, 2
-    add $t0, $t1
-    lw $ra, ($t0)
 
+reset_registers:
     move $at, $zero
     move $v0, $zero
     move $v1, $zero
@@ -98,17 +69,11 @@ prepare_registers:
     move $k0, $zero
     move $k1, $zero
     move $gp, $zero
-    move $s8, $zero
+    move $fp, $zero
 
 run_ipl3:
     li $t3, IPL3_ENTRY
     jr $t3
 
-ra_values:
-    .set ra_table, REBOOT_ADDRESS + (. - reboot_start)
-    .word 0xA4001554
-    .word 0xA4001550
-    .word 0xA4001554
-
     .set reboot_size, (. - reboot_start)
     .global reboot_size

src/flashcart/64drive/64drive.c

@@ -25,57 +25,64 @@ static d64_device_variant_t device_variant = DEVICE_VARIANT_UNKNOWN;
 static d64_save_type_t current_save_type = SAVE_TYPE_NONE;
 
 
-static flashcart_error_t d64_init (void) {
+static flashcart_err_t d64_init (void) {
     uint16_t fpga_revision;
     uint32_t bootloader_version;
 
     if (d64_ll_enable_extended_mode(false)) {
-        return FLASHCART_ERROR_INT;
+        return FLASHCART_ERR_INT;
     }
 
     if (d64_ll_get_version(&device_variant, &fpga_revision, &bootloader_version)) {
-        return FLASHCART_ERROR_INT;
+        return FLASHCART_ERR_INT;
     }
 
     if (fpga_revision < SUPPORTED_FPGA_REVISION) {
-        return FLASHCART_ERROR_OUTDATED;
+        return FLASHCART_ERR_OUTDATED;
     }
 
     if (d64_ll_enable_save_writeback(false)) {
-        return FLASHCART_ERROR_INT;
+        return FLASHCART_ERR_INT;
     }
 
     if (d64_ll_set_save_type(SAVE_TYPE_NONE)) {
-        return FLASHCART_ERROR_INT;
+        return FLASHCART_ERR_INT;
     }
 
     current_save_type = SAVE_TYPE_NONE;
 
     if (d64_ll_enable_cartrom_writes(true)) {
-        return FLASHCART_ERROR_INT;
+        return FLASHCART_ERR_INT;
     }
 
     if (d64_ll_set_persistent_variable_storage(false, 0, 0)) {
-        return FLASHCART_ERROR_INT;
+        return FLASHCART_ERR_INT;
     }
 
     return FLASHCART_OK;
 }
 
-static flashcart_error_t d64_deinit (void) {
+static flashcart_err_t d64_deinit (void) {
     if (d64_ll_enable_cartrom_writes(false)) {
-        return FLASHCART_ERROR_INT;
+        return FLASHCART_ERR_INT;
     }
 
     return FLASHCART_OK;
 }
 
-static flashcart_error_t d64_load_rom (char *rom_path, flashcart_progress_callback_t *progress) {
+static bool d64_has_feature (flashcart_features_t feature) {
+    switch (feature) {
+        case FLASHCART_FEATURE_64DD: return false;
+        default: return false;
+    }
+}
+
+static flashcart_err_t d64_load_rom (char *rom_path, flashcart_progress_callback_t *progress) {
     FIL fil;
     UINT br;
 
     if (f_open(&fil, strip_sd_prefix(rom_path), FA_READ) != FR_OK) {
-        return FLASHCART_ERROR_LOAD;
+        return FLASHCART_ERR_LOAD;
     }
 
     fix_file_size(&fil);
@@ -84,7 +91,7 @@ static flashcart_error_t d64_load_rom (char *rom_path, flashcart_progress_callba
 
     if (rom_size > MiB(64)) {
         f_close(&fil);
-        return FLASHCART_ERROR_LOAD;
+        return FLASHCART_ERR_LOAD;
     }
 
     size_t sdram_size = MiB(64);
@@ -94,7 +101,7 @@ static flashcart_error_t d64_load_rom (char *rom_path, flashcart_progress_callba
         size_t block_size = MIN(sdram_size - offset, chunk_size);
         if (f_read(&fil, (void *) (ROM_ADDRESS + offset), block_size, &br) != FR_OK) {
             f_close(&fil);
-            return FLASHCART_ERROR_LOAD;
+            return FLASHCART_ERR_LOAD;
         }
         if (progress) {
             progress(f_tell(&fil) / (float) (f_size(&fil)));
@@ -102,22 +109,22 @@ static flashcart_error_t d64_load_rom (char *rom_path, flashcart_progress_callba
     }
     if (f_tell(&fil) != rom_size) {
         f_close(&fil);
-        return FLASHCART_ERROR_LOAD;
+        return FLASHCART_ERR_LOAD;
     }
 
     if (f_close(&fil) != FR_OK) {
-        return FLASHCART_ERROR_LOAD;
+        return FLASHCART_ERR_LOAD;
     }
 
     return FLASHCART_OK;
 }
 
-static flashcart_error_t d64_load_file (char *file_path, uint32_t rom_offset, uint32_t file_offset) {
+static flashcart_err_t d64_load_file (char *file_path, uint32_t rom_offset, uint32_t file_offset) {
     FIL fil;
     UINT br;
 
     if (f_open(&fil, strip_sd_prefix(file_path), FA_READ) != FR_OK) {
-        return FLASHCART_ERROR_LOAD;
+        return FLASHCART_ERR_LOAD;
     }
 
     fix_file_size(&fil);
@@ -126,37 +133,37 @@ static flashcart_error_t d64_load_file (char *file_path, uint32_t rom_offset, ui
 
     if (file_size > (MiB(64) - rom_offset)) {
         f_close(&fil);
-        return FLASHCART_ERROR_ARGS;
+        return FLASHCART_ERR_ARGS;
     }
 
     if (f_lseek(&fil, file_offset) != FR_OK) {
         f_close(&fil);
-        return FLASHCART_ERROR_LOAD;
+        return FLASHCART_ERR_LOAD;
     }
 
     if (f_read(&fil, (void *) (ROM_ADDRESS + rom_offset), file_size, &br) != FR_OK) {
         f_close(&fil);
-        return FLASHCART_ERROR_LOAD;
+        return FLASHCART_ERR_LOAD;
     }
     if (br != file_size) {
         f_close(&fil);
-        return FLASHCART_ERROR_LOAD;
+        return FLASHCART_ERR_LOAD;
     }
 
     if (f_close(&fil) != FR_OK) {
-        return FLASHCART_ERROR_LOAD;
+        return FLASHCART_ERR_LOAD;
     }
 
     return FLASHCART_OK;
 }
 
-static flashcart_error_t d64_load_save (char *save_path) {
+static flashcart_err_t d64_load_save (char *save_path) {
     uint8_t eeprom_contents[2048] __attribute__((aligned(8)));
     FIL fil;
     UINT br;
 
     if (f_open(&fil, strip_sd_prefix(save_path), FA_READ) != FR_OK) {
-        return FLASHCART_ERROR_LOAD;
+        return FLASHCART_ERR_LOAD;
     }
 
     size_t save_size = f_size(&fil);
@@ -175,28 +182,28 @@ static flashcart_error_t d64_load_save (char *save_path) {
 
     if (f_read(&fil, address, save_size, &br) != FR_OK) {
         f_close(&fil);
-        return FLASHCART_ERROR_LOAD;
+        return FLASHCART_ERR_LOAD;
     }
 
     if (is_eeprom_save) {
         if (d64_ll_write_eeprom_contents(eeprom_contents)) {
             f_close(&fil);
-            return FLASHCART_ERROR_LOAD;
+            return FLASHCART_ERR_LOAD;
         }
     }
 
     if (f_close(&fil) != FR_OK) {
-        return FLASHCART_ERROR_LOAD;
+        return FLASHCART_ERR_LOAD;
     }
 
     if (br != save_size) {
-        return FLASHCART_ERROR_LOAD;
+        return FLASHCART_ERR_LOAD;
     }
 
     return FLASHCART_OK;
 }
 
-static flashcart_error_t d64_set_save_type (flashcart_save_type_t save_type) {
+static flashcart_err_t d64_set_save_type (flashcart_save_type_t save_type) {
     d64_save_type_t type;
 
     switch (save_type) {
@@ -226,15 +233,15 @@ static flashcart_error_t d64_set_save_type (flashcart_save_type_t save_type) {
             type = (device_variant == DEVICE_VARIANT_A) ? SAVE_TYPE_FLASHRAM_PKST2 : SAVE_TYPE_FLASHRAM;
             break;
         default:
-            return FLASHCART_ERROR_ARGS;
+            return FLASHCART_ERR_ARGS;
     }
 
     if (d64_ll_enable_save_writeback(false)) {
-        return FLASHCART_ERROR_INT;
+        return FLASHCART_ERR_INT;
     }
 
     if (d64_ll_set_save_type(type)) {
-        return FLASHCART_ERROR_INT;
+        return FLASHCART_ERR_INT;
     }
 
     current_save_type = type;
@@ -242,13 +249,13 @@ static flashcart_error_t d64_set_save_type (flashcart_save_type_t save_type) {
     return FLASHCART_OK;
 }
 
-static flashcart_error_t d64_set_save_writeback (uint32_t *sectors) {
+static flashcart_err_t d64_set_save_writeback (uint32_t *sectors) {
     if (d64_ll_write_save_writeback_lba_list(sectors)) {
-        return FLASHCART_ERROR_INT;
+        return FLASHCART_ERR_INT;
     }
 
     if (d64_ll_enable_save_writeback(true)) {
-        return FLASHCART_ERROR_INT;
+        return FLASHCART_ERR_INT;
     }
 
     return FLASHCART_OK;
@@ -258,9 +265,12 @@ static flashcart_error_t d64_set_save_writeback (uint32_t *sectors) {
 static flashcart_t flashcart_d64 = {
     .init = d64_init,
     .deinit = d64_deinit,
+    .has_feature = d64_has_feature,
     .load_rom = d64_load_rom,
     .load_file = d64_load_file,
     .load_save = d64_load_save,
+    .load_64dd_ipl = NULL,
+    .load_64dd_disk = NULL,
     .set_save_type = d64_set_save_type,
     .set_save_writeback = d64_set_save_writeback,
 };

src/flashcart/flashcart.c

@@ -30,7 +30,21 @@ static const size_t SAVE_SIZE[__FLASHCART_SAVE_TYPE_END] = {
 static uint32_t save_writeback_sectors[SAVE_WRITEBACK_MAX_SECTORS] __attribute__((aligned(8)));
 
 
-static flashcart_error_t dummy_init (void) {
+static void save_writeback_sectors_callback (uint32_t sector_count, uint32_t file_sector, uint32_t cluster_sector, uint32_t cluster_size) {
+    for (uint32_t i = 0; i < cluster_size; i++) {
+        uint32_t offset = file_sector + i;
+        uint32_t sector = cluster_sector + i;
+
+        if ((offset > SAVE_WRITEBACK_MAX_SECTORS) || (offset > sector_count)) {
+            return;
+        }
+
+        save_writeback_sectors[offset] = sector;
+    }
+}
+
+
+static flashcart_err_t dummy_init (void) {
     return FLASHCART_OK;
 }
 
@@ -52,52 +66,59 @@ static flashcart_t *flashcart = &((flashcart_t) {
 #endif
 
 
-flashcart_error_t flashcart_init (void) {
+char *flashcart_convert_error_message (flashcart_err_t err) {
-    flashcart_error_t error;
+    switch (err) {
+        case FLASHCART_OK: return "No error";
+        case FLASHCART_ERR_NOT_DETECTED: return "No flashcart hardware was detected";
+        case FLASHCART_ERR_OUTDATED: return "Outdated flashcart firmware";
+        case FLASHCART_ERR_SD_CARD: return "Error during SD card initialization";
+        case FLASHCART_ERR_ARGS: return "Invalid argument passed to flashcart function";
+        case FLASHCART_ERR_LOAD: return "Error during loading data into flashcart";
+        case FLASHCART_ERR_INT: return "Internal flashcart error";
+        case FLASHCART_ERR_FUNCTION_NOT_SUPPORTED: return "Flashcart doesn't support this function";
+        default: return "Unknown flashcart error";
+    }
+}
 
-    // NOTE: Explicitly support only these flashcarts in this specific initialization order.
+flashcart_err_t flashcart_init (void) {
-    struct {
+    flashcart_err_t err;
-        int type;
-        int (* libcart_init) (void);
-        flashcart_t *(* get) (void);
-    } flashcarts[CART_MAX] = {
-        { CART_CI, ci_init, d64_get_flashcart },    // 64drive
-        { CART_SC, sc_init, sc64_get_flashcart },   // SC64
-        { CART_EDX, edx_init, NULL },               // Series X EverDrive-64
-        { CART_ED, ed_init, NULL },                 // Original EverDrive-64
-    };
 
-    for (int i = 0; i < CART_MAX; i++) {
+    bool sd_card_initialized = debug_init_sdfs("sd:/", -1);
-        if (flashcarts[i].libcart_init() >= 0) {
-            cart_type = flashcarts[i].type;
-            if (flashcarts[i].get) {
-                flashcart = flashcarts[i].get();
-            }
-            break;
-        }
-    }
-
-    if (cart_type == CART_NULL) {
-        return FLASHCART_ERROR_NOT_DETECTED;    
-    }
 
 #ifndef NDEBUG
     // NOTE: Some flashcarts doesn't have USB port, can't throw error here
     debug_init_usblog();
 #endif
 
-    if ((error = flashcart->init()) != FLASHCART_OK) {
+    switch (cart_type) {
-        return error;
+        case CART_CI:   // 64drive
+            flashcart = d64_get_flashcart();
+            break;
+
+        case CART_EDX:  // Series X EverDrive-64
+        case CART_ED:   // Original EverDrive-64
+            break;
+
+        case CART_SC:   // SummerCart64
+            flashcart = sc64_get_flashcart();
+            break;
+
+        default:
+            return FLASHCART_ERR_NOT_DETECTED;
     }
 
-    if (!debug_init_sdfs("sd:/", -1)) {
+    if ((err = flashcart->init()) != FLASHCART_OK) {
-        return FLASHCART_ERROR_SD_CARD;
+        return err;
+    }
+
+    if (!sd_card_initialized) {
+        return FLASHCART_ERR_SD_CARD;
     }
 
     return FLASHCART_OK;
 }
 
-flashcart_error_t flashcart_deinit (void) {
+flashcart_err_t flashcart_deinit (void) {
     if (flashcart->deinit) {
         return flashcart->deinit();
     }
@@ -105,54 +126,41 @@ flashcart_error_t flashcart_deinit (void) {
     return FLASHCART_OK;
 }
 
-flashcart_error_t flashcart_load_rom (char *rom_path, bool byte_swap, flashcart_progress_callback_t *progress) {
+bool flashcart_has_feature (flashcart_features_t feature) {
-    flashcart_error_t error;
+    return flashcart->has_feature(feature);
+}
 
-    if ((rom_path == NULL) || (!file_exists(rom_path)) || (file_get_size(rom_path) < KiB(4))) {
+flashcart_err_t flashcart_load_rom (char *rom_path, bool byte_swap, flashcart_progress_callback_t *progress) {
-        return FLASHCART_ERROR_ARGS;
+    flashcart_err_t err;
+
+    if (rom_path == NULL) {
+        return FLASHCART_ERR_ARGS;
     }
 
     cart_card_byteswap = byte_swap;
-    error = flashcart->load_rom(rom_path, progress);
+    err = flashcart->load_rom(rom_path, progress);
     cart_card_byteswap = false;
 
-    return error;
+    return err;
 }
 
-flashcart_error_t flashcart_load_file (char *file_path, uint32_t rom_offset, uint32_t file_offset) {
+flashcart_err_t flashcart_load_file (char *file_path, uint32_t rom_offset, uint32_t file_offset) {
-    if ((file_path == NULL) || (!file_exists(file_path))) {
+    if ((file_path == NULL) || ((file_offset % FS_SECTOR_SIZE) != 0)) {
-        return FLASHCART_ERROR_ARGS;
+        return FLASHCART_ERR_ARGS;
-    }
-
-    if ((file_offset % FS_SECTOR_SIZE) != 0) {
-        return FLASHCART_ERROR_ARGS;
     }
 
     return flashcart->load_file(file_path, rom_offset, file_offset);
 }
 
-static void save_writeback_sectors_callback (uint32_t sector_count, uint32_t file_sector, uint32_t cluster_sector, uint32_t cluster_size) {
+flashcart_err_t flashcart_load_save (char *save_path, flashcart_save_type_t save_type) {
-    for (uint32_t i = 0; i < cluster_size; i++) {
+    flashcart_err_t err;
-        uint32_t offset = file_sector + i;
-        uint32_t sector = cluster_sector + i;
-
-        if ((offset > SAVE_WRITEBACK_MAX_SECTORS) || (offset > sector_count)) {
-            return;
-        }
-
-        save_writeback_sectors[offset] = sector;
-    }
-}
-
-flashcart_error_t flashcart_load_save (char *save_path, flashcart_save_type_t save_type) {
-    flashcart_error_t error;
 
     if (save_type >= __FLASHCART_SAVE_TYPE_END) {
-        return FLASHCART_ERROR_ARGS;
+        return FLASHCART_ERR_ARGS;
     }
 
-    if ((error = flashcart->set_save_type(save_type)) != FLASHCART_OK) {
+    if ((err = flashcart->set_save_type(save_type)) != FLASHCART_OK) {
-        return error;
+        return err;
     }
 
     if ((save_path == NULL) || (save_type == FLASHCART_SAVE_TYPE_NONE)) {
@@ -161,19 +169,19 @@ flashcart_error_t flashcart_load_save (char *save_path, flashcart_save_type_t sa
 
     if (!file_exists(save_path)) {
         if (file_allocate(save_path, SAVE_SIZE[save_type])) {
-            return FLASHCART_ERROR_LOAD;
+            return FLASHCART_ERR_LOAD;
         }
         if (file_fill(save_path, 0xFF)) {
-            return FLASHCART_ERROR_LOAD;
+            return FLASHCART_ERR_LOAD;
         }
     }
 
     if (file_get_size(save_path) != SAVE_SIZE[save_type]) {
-        return FLASHCART_ERROR_LOAD;
+        return FLASHCART_ERR_LOAD;
     }
 
-    if ((error = flashcart->load_save(save_path)) != FLASHCART_OK) {
+    if ((err = flashcart->load_save(save_path)) != FLASHCART_OK) {
-        return error;
+        return err;
     }
 
     if (flashcart->set_save_writeback) {
@@ -181,12 +189,36 @@ flashcart_error_t flashcart_load_save (char *save_path, flashcart_save_type_t sa
             save_writeback_sectors[i] = 0;
         }
         if (file_get_sectors(save_path, save_writeback_sectors_callback)) {
-            return FLASHCART_ERROR_LOAD;
+            return FLASHCART_ERR_LOAD;
         }
-        if ((error = flashcart->set_save_writeback(save_writeback_sectors)) != FLASHCART_OK) {
+        if ((err = flashcart->set_save_writeback(save_writeback_sectors)) != FLASHCART_OK) {
-            return error;
+            return err;
         }
     }
 
     return FLASHCART_OK;
 }
+
+flashcart_err_t flashcart_load_64dd_ipl (char *ipl_path, flashcart_progress_callback_t *progress) {
+    if (!flashcart->load_64dd_ipl) {
+        return FLASHCART_ERR_FUNCTION_NOT_SUPPORTED;
+    }
+
+    if (ipl_path == NULL) {
+        return FLASHCART_ERR_ARGS;
+    }
+
+    return flashcart->load_64dd_ipl(ipl_path, progress);
+}
+
+flashcart_err_t flashcart_load_64dd_disk (char *disk_path, flashcart_disk_parameters_t *disk_parameters) {
+    if (!flashcart->load_64dd_disk) {
+        return FLASHCART_ERR_FUNCTION_NOT_SUPPORTED;
+    }
+
+    if ((disk_path == NULL) || (disk_parameters == NULL)) {
+        return FLASHCART_ERR_ARGS;
+    }
+
+    return flashcart->load_64dd_disk(disk_path, disk_parameters);
+}

src/flashcart/flashcart.h

@@ -15,13 +15,19 @@
 /** @brief Flashcart error enumeration */
 typedef enum {
     FLASHCART_OK,
-    FLASHCART_ERROR_NOT_DETECTED,
+    FLASHCART_ERR_NOT_DETECTED,
-    FLASHCART_ERROR_OUTDATED,
+    FLASHCART_ERR_OUTDATED,
-    FLASHCART_ERROR_SD_CARD,
+    FLASHCART_ERR_SD_CARD,
-    FLASHCART_ERROR_ARGS,
+    FLASHCART_ERR_ARGS,
-    FLASHCART_ERROR_LOAD,
+    FLASHCART_ERR_LOAD,
-    FLASHCART_ERROR_INT,
+    FLASHCART_ERR_INT,
-} flashcart_error_t;
+    FLASHCART_ERR_FUNCTION_NOT_SUPPORTED,
+} flashcart_err_t;
+
+/** @brief List of optional supported flashcart features */
+typedef enum {
+    FLASHCART_FEATURE_64DD,
+} flashcart_features_t;
 
 /** @brief Flashcart save type enumeration */
 typedef enum {
@@ -36,25 +42,39 @@ typedef enum {
     __FLASHCART_SAVE_TYPE_END
 } flashcart_save_type_t;
 
+typedef struct {
+    bool development_drive;
+    uint8_t disk_type;
+    bool bad_system_area_lbas[24];
+    uint8_t defect_tracks[16][12];
+} flashcart_disk_parameters_t;
+
 typedef void flashcart_progress_callback_t (float progress);
 
 /** @brief Flashcart Structure */
 typedef struct {
-    flashcart_error_t (*init) (void);
+    flashcart_err_t (*init) (void);
-    flashcart_error_t (*deinit) (void);
+    flashcart_err_t (*deinit) (void);
-    flashcart_error_t (*load_rom) (char *rom_path, flashcart_progress_callback_t *progress);
+    bool (*has_feature) (flashcart_features_t feature);
-    flashcart_error_t (*load_file) (char *file_path, uint32_t rom_offset, uint32_t file_offset);
+    flashcart_err_t (*load_rom) (char *rom_path, flashcart_progress_callback_t *progress);
-    flashcart_error_t (*load_save) (char *save_path);
+    flashcart_err_t (*load_file) (char *file_path, uint32_t rom_offset, uint32_t file_offset);
-    flashcart_error_t (*set_save_type) (flashcart_save_type_t save_type);
+    flashcart_err_t (*load_save) (char *save_path);
-    flashcart_error_t (*set_save_writeback) (uint32_t *sectors);
+    flashcart_err_t (*load_64dd_ipl) (char *ipl_path, flashcart_progress_callback_t *progress);
+    flashcart_err_t (*load_64dd_disk) (char *disk_path, flashcart_disk_parameters_t *disk_parameters);
+    flashcart_err_t (*set_save_type) (flashcart_save_type_t save_type);
+    flashcart_err_t (*set_save_writeback) (uint32_t *sectors);
 } flashcart_t;
 
 
-flashcart_error_t flashcart_init (void);
+char *flashcart_convert_error_message (flashcart_err_t err);
-flashcart_error_t flashcart_deinit (void);
+flashcart_err_t flashcart_init (void);
-flashcart_error_t flashcart_load_rom (char *rom_path, bool byte_swap, flashcart_progress_callback_t *progress);
+flashcart_err_t flashcart_deinit (void);
-flashcart_error_t flashcart_load_file (char *file_path, uint32_t rom_offset, uint32_t file_offset);
+bool flashcart_has_feature (flashcart_features_t feature);
-flashcart_error_t flashcart_load_save (char *save_path, flashcart_save_type_t save_type);
+flashcart_err_t flashcart_load_rom (char *rom_path, bool byte_swap, flashcart_progress_callback_t *progress);
+flashcart_err_t flashcart_load_file (char *file_path, uint32_t rom_offset, uint32_t file_offset);
+flashcart_err_t flashcart_load_save (char *save_path, flashcart_save_type_t save_type);
+flashcart_err_t flashcart_load_64dd_ipl (char *ipl_path, flashcart_progress_callback_t *progress);
+flashcart_err_t flashcart_load_64dd_disk (char *disk_path, flashcart_disk_parameters_t *disk_parameters);
 
 
 #endif

src/flashcart/sc64/sc64.c

@@ -15,35 +15,89 @@
 
 #define SRAM_FLASHRAM_ADDRESS       (0x08000000)
 #define ROM_ADDRESS                 (0x10000000)
+#define IPL_ADDRESS                 (0x13BC0000)
 #define EXTENDED_ADDRESS            (0x14000000)
 #define SHADOW_ADDRESS              (0x1FFC0000)
 #define EEPROM_ADDRESS              (0x1FFE2000)
 
 #define SUPPORTED_MAJOR_VERSION     (2)
-#define SUPPORTED_MINOR_VERSION     (16)
+#define SUPPORTED_MINOR_VERSION     (17)
 #define SUPPORTED_REVISION          (0)
 
+#define DISK_MAPPING_ROM_OFFSET     (0x02000000)
+#define DISK_MAX_SECTORS            (126820)
 
-static flashcart_error_t load_to_flash (FIL *fil, void *address, size_t size, UINT *br, flashcart_progress_callback_t *progress) {
+#define DISK_TRACKS                 (1175)
+#define DISK_HEADS                  (2)
+#define DISK_BLOCKS                 (2)
+#define DISK_SECTORS_PER_BLOCK      (85)
+#define DISK_ZONES                  (16)
+#define DISK_BAD_TRACKS_PER_ZONE    (12)
+#define DISK_TYPES                  (7)
+#define DISK_SYSTEM_LBA_COUNT       (24)
+
+#define THB_UNMAPPED                (0xFFFFFFFF)
+#define THB_WRITABLE_FLAG           (1 << 31)
+
+
+static const struct {
+    uint8_t head;
+    uint8_t sector_length;
+    uint8_t tracks;
+    uint16_t track_offset;
+} zone_mapping[DISK_ZONES] = {
+    { 0, 232, 158, 0 },
+    { 0, 216, 158, 158 },
+    { 0, 208, 149, 316 },
+    { 0, 192, 149, 465 },
+    { 0, 176, 149, 614 },
+    { 0, 160, 149, 763 },
+    { 0, 144, 149, 912 },
+    { 0, 128, 114, 1061 },
+    { 1, 216, 158, 0 },
+    { 1, 208, 158, 158 },
+    { 1, 192, 149, 316 },
+    { 1, 176, 149, 465 },
+    { 1, 160, 149, 614 },
+    { 1, 144, 149, 763 },
+    { 1, 128, 149, 912 },
+    { 1, 112, 114, 1061 },
+};
+static const uint8_t vzone_to_pzone[DISK_TYPES][DISK_ZONES] = {
+    {0, 1, 2, 9, 8, 3, 4, 5, 6, 7, 15, 14, 13, 12, 11, 10},
+    {0, 1, 2, 3, 10, 9, 8, 4, 5, 6, 7, 15, 14, 13, 12, 11},
+    {0, 1, 2, 3, 4, 11, 10, 9, 8, 5, 6, 7, 15, 14, 13, 12},
+    {0, 1, 2, 3, 4, 5, 12, 11, 10, 9, 8, 6, 7, 15, 14, 13},
+    {0, 1, 2, 3, 4, 5, 6, 13, 12, 11, 10, 9, 8, 7, 15, 14},
+    {0, 1, 2, 3, 4, 5, 6, 7, 14, 13, 12, 11, 10, 9, 8, 15},
+    {0, 1, 2, 3, 4, 5, 6, 7, 15, 14, 13, 12, 11, 10, 9, 8},
+};
+static const uint8_t rom_zones[DISK_TYPES] = { 5, 7, 9, 11, 13, 15, 16 };
+
+
+static uint32_t disk_sectors_start_offset;
+
+
+static flashcart_err_t load_to_flash (FIL *fil, void *address, size_t size, UINT *br, flashcart_progress_callback_t *progress) {
     size_t erase_block_size;
     UINT bp;
 
     *br = 0;
 
     if (sc64_ll_flash_get_erase_block_size(&erase_block_size) != SC64_OK) {
-        return FLASHCART_ERROR_INT;
+        return FLASHCART_ERR_INT;
     }
 
     while (size > 0) {
         size_t program_size = MIN(size, erase_block_size);
         if (sc64_ll_flash_erase_block(address) != SC64_OK) {
-            return FLASHCART_ERROR_INT;
+            return FLASHCART_ERR_INT;
         }
         if (f_read(fil, address, program_size, &bp) != FR_OK) {
-            return FLASHCART_ERROR_LOAD;
+            return FLASHCART_ERR_LOAD;
         }
         if (sc64_ll_flash_wait_busy() != SC64_OK) {
-            return FLASHCART_ERROR_INT;
+            return FLASHCART_ERR_INT;
         }
         if (progress) {
             progress(f_tell(fil) / (float) (f_size(fil)));
@@ -56,27 +110,113 @@ static flashcart_error_t load_to_flash (FIL *fil, void *address, size_t size, UI
     return FLASHCART_OK;
 }
 
-static flashcart_error_t sc64_init (void) {
+static uint32_t disk_sectors_start (uint32_t offset) {
+    disk_sectors_start_offset = offset;
+    return (offset + (DISK_MAX_SECTORS * sizeof(uint32_t)));
+}
+
+static void disk_sectors_callback (uint32_t sector_count, uint32_t file_sector, uint32_t cluster_sector, uint32_t cluster_size) {
+    for (uint32_t i = 0; i < cluster_size; i++) {
+        uint32_t offset = file_sector + i;
+        uint32_t sector = cluster_sector + i;
+
+        if ((offset > DISK_MAX_SECTORS) || (offset > sector_count)) {
+            return;
+        }
+
+        io_write(ROM_ADDRESS + disk_sectors_start_offset + (offset * sizeof(uint32_t)), sector);
+    }
+}
+
+static bool disk_zone_track_is_bad (uint8_t zone, uint8_t track, flashcart_disk_parameters_t *disk_parameters) {
+    for (int i = 0; i < DISK_BAD_TRACKS_PER_ZONE; i++) {
+        if (disk_parameters->defect_tracks[zone][i] == track) {
+            return true;
+        }
+    }
+
+    return false;
+}
+
+static bool disk_system_lba_is_bad (uint16_t lba, flashcart_disk_parameters_t *disk_parameters) {
+    if (lba < DISK_SYSTEM_LBA_COUNT) {
+        return disk_parameters->bad_system_area_lbas[lba];
+    }
+
+    return false;
+}
+
+static void disk_set_thb_mapping (uint32_t offset, uint16_t track, uint8_t head, uint8_t block, bool valid, bool writable, int file_offset) {
+    uint32_t index = (track << 2) | (head << 1) | (block);
+    uint32_t mapping = valid ? ((writable ? THB_WRITABLE_FLAG : 0) | (file_offset & ~(THB_WRITABLE_FLAG))) : THB_UNMAPPED;
+
+    io_write(ROM_ADDRESS + offset + (index * sizeof(uint32_t)), mapping);
+}
+
+static uint32_t disk_load_thb_table (uint32_t offset, flashcart_disk_parameters_t *disk_parameters) {
+    int file_offset = 0;
+
+    uint16_t lba = 0;
+    uint8_t starting_block = 0;
+
+    for (uint8_t vzone = 0; vzone < DISK_ZONES; vzone++) {
+        uint8_t pzone = vzone_to_pzone[disk_parameters->disk_type][vzone];
+
+        uint8_t head = zone_mapping[pzone].head;
+        uint8_t sector_length = zone_mapping[pzone].sector_length;
+        uint8_t tracks = zone_mapping[pzone].tracks;
+        uint16_t track_offset = zone_mapping[pzone].track_offset;
+
+        bool reverse = (head != 0);
+        int zone_track_start = (reverse ? (tracks - 1) : 0);
+        int zone_track_end = (reverse ? (-1) : tracks);
+
+        for (int zone_track = zone_track_start; zone_track != zone_track_end; zone_track += (reverse ? (-1) : 1)) {
+            uint16_t track = track_offset + zone_track;
+
+            if (disk_zone_track_is_bad(pzone, zone_track, disk_parameters)) {
+                disk_set_thb_mapping(offset, track, head, 0, false, false, 0);
+                disk_set_thb_mapping(offset, track, head, 1, false, false, 0);
+                continue;
+            }
+
+            for (uint8_t block = 0; block < DISK_BLOCKS; block += 1) {
+                bool valid = !(disk_system_lba_is_bad(lba, disk_parameters));
+                bool writable = (vzone >= rom_zones[disk_parameters->disk_type]);
+                disk_set_thb_mapping(offset, track, head, (starting_block ^ block), valid, writable, file_offset);
+                file_offset += (sector_length * DISK_SECTORS_PER_BLOCK);
+                lba += 1;
+            }
+
+            starting_block ^= 1;
+        }
+    }
+
+    return (offset + (DISK_TRACKS * DISK_HEADS * DISK_BLOCKS * sizeof(uint32_t)));
+}
+
+
+static flashcart_err_t sc64_init (void) {
     uint16_t major;
     uint16_t minor;
     uint32_t revision;
 
     if (sc64_ll_get_version(&major, &minor, &revision) != SC64_OK) {
-        return FLASHCART_ERROR_OUTDATED;
+        return FLASHCART_ERR_OUTDATED;
     }
     if (major != SUPPORTED_MAJOR_VERSION) {
-        return FLASHCART_ERROR_OUTDATED;
+        return FLASHCART_ERR_OUTDATED;
     }
     if (minor < SUPPORTED_MINOR_VERSION) {
-        return FLASHCART_ERROR_OUTDATED;
+        return FLASHCART_ERR_OUTDATED;
     } else if (minor == SUPPORTED_MINOR_VERSION && revision < SUPPORTED_REVISION) {
-        return FLASHCART_ERROR_OUTDATED;
+        return FLASHCART_ERR_OUTDATED;
     }
 
     bool writeback_pending;
     do {
         if (sc64_ll_writeback_pending(&writeback_pending) != SC64_OK) {
-            return FLASHCART_ERROR_INT;
+            return FLASHCART_ERR_INT;
         }
     } while (writeback_pending);
 
@@ -102,14 +242,14 @@ static flashcart_error_t sc64_init (void) {
 
     for (int i = 0; i < sizeof(default_config) / sizeof(default_config[0]); i++) {
         if (sc64_ll_set_config(default_config[i].id, default_config[i].value) != SC64_OK) {
-            return FLASHCART_ERROR_INT;
+            return FLASHCART_ERR_INT;
         }
     }
 
     return FLASHCART_OK;
 }
 
-static flashcart_error_t sc64_deinit (void) {
+static flashcart_err_t sc64_deinit (void) {
     sc64_ll_set_config(CFG_ID_ROM_WRITE_ENABLE, false);
 
     sc64_ll_lock();
@@ -117,12 +257,19 @@ static flashcart_error_t sc64_deinit (void) {
     return FLASHCART_OK;
 }
 
-static flashcart_error_t sc64_load_rom (char *rom_path, flashcart_progress_callback_t *progress) {
+static bool sc64_has_feature (flashcart_features_t feature) {
+    switch (feature) {
+        case FLASHCART_FEATURE_64DD: return true;
+        default: return false;
+    }
+}
+
+static flashcart_err_t sc64_load_rom (char *rom_path, flashcart_progress_callback_t *progress) {
     FIL fil;
     UINT br;
 
     if (f_open(&fil, strip_sd_prefix(rom_path), FA_READ) != FR_OK) {
-        return FLASHCART_ERROR_LOAD;
+        return FLASHCART_ERR_LOAD;
     }
 
     fix_file_size(&fil);
@@ -131,7 +278,7 @@ static flashcart_error_t sc64_load_rom (char *rom_path, flashcart_progress_callb
 
     if (rom_size > MiB(78)) {
         f_close(&fil);
-        return FLASHCART_ERROR_LOAD;
+        return FLASHCART_ERR_LOAD;
     }
 
     bool shadow_enabled = (rom_size > (MiB(64) - KiB(128)));
@@ -146,7 +293,7 @@ static flashcart_error_t sc64_load_rom (char *rom_path, flashcart_progress_callb
         size_t block_size = MIN(sdram_size - offset, chunk_size);
         if (f_read(&fil, (void *) (ROM_ADDRESS + offset), block_size, &br) != FR_OK) {
             f_close(&fil);
-            return FLASHCART_ERROR_LOAD;
+            return FLASHCART_ERR_LOAD;
         }
         if (progress) {
             progress(f_tell(&fil) / (float) (f_size(&fil)));
@@ -154,56 +301,56 @@ static flashcart_error_t sc64_load_rom (char *rom_path, flashcart_progress_callb
     }
     if (f_tell(&fil) != sdram_size) {
         f_close(&fil);
-        return FLASHCART_ERROR_LOAD;
+        return FLASHCART_ERR_LOAD;
     }
 
     if (sc64_ll_set_config(CFG_ID_ROM_SHADOW_ENABLE, shadow_enabled) != SC64_OK) {
         f_close(&fil);
-        return FLASHCART_ERROR_INT;
+        return FLASHCART_ERR_INT;
     }
 
     if (shadow_enabled) {
-        flashcart_error_t error = load_to_flash(&fil, (void *) (SHADOW_ADDRESS), shadow_size, &br, progress);
+        flashcart_err_t err = load_to_flash(&fil, (void *) (SHADOW_ADDRESS), shadow_size, &br, progress);
-        if (error != FLASHCART_OK) {
+        if (err != FLASHCART_OK) {
             f_close(&fil);
-            return error;
+            return err;
         }
         if (br != shadow_size) {
             f_close(&fil);
-            return FLASHCART_ERROR_LOAD;
+            return FLASHCART_ERR_LOAD;
         }
     }
 
     if (sc64_ll_set_config(CFG_ID_ROM_EXTENDED_ENABLE, extended_enabled) != SC64_OK) {
         f_close(&fil);
-        return FLASHCART_ERROR_INT;
+        return FLASHCART_ERR_INT;
     }
 
     if (extended_enabled) {
-        flashcart_error_t error = load_to_flash(&fil, (void *) (EXTENDED_ADDRESS), extended_size, &br, progress);
+        flashcart_err_t err = load_to_flash(&fil, (void *) (EXTENDED_ADDRESS), extended_size, &br, progress);
-        if (error != FLASHCART_OK) {
+        if (err != FLASHCART_OK) {
             f_close(&fil);
-            return error;
+            return err;
         }
         if (br != extended_size) {
             f_close(&fil);
-            return FLASHCART_ERROR_LOAD;
+            return FLASHCART_ERR_LOAD;
         }
     }
 
     if (f_close(&fil) != FR_OK) {
-        return FLASHCART_ERROR_LOAD;
+        return FLASHCART_ERR_LOAD;
     }
 
     return FLASHCART_OK;
 }
 
-static flashcart_error_t sc64_load_file (char *file_path, uint32_t rom_offset, uint32_t file_offset) {
+static flashcart_err_t sc64_load_file (char *file_path, uint32_t rom_offset, uint32_t file_offset) {
     FIL fil;
     UINT br;
 
     if (f_open(&fil, strip_sd_prefix(file_path), FA_READ) != FR_OK) {
-        return FLASHCART_ERROR_LOAD;
+        return FLASHCART_ERR_LOAD;
     }
 
     fix_file_size(&fil);
@@ -212,36 +359,36 @@ static flashcart_error_t sc64_load_file (char *file_path, uint32_t rom_offset, u
 
     if (file_size > (MiB(64) - rom_offset)) {
         f_close(&fil);
-        return FLASHCART_ERROR_ARGS;
+        return FLASHCART_ERR_ARGS;
     }
 
     if (f_lseek(&fil, file_offset) != FR_OK) {
         f_close(&fil);
-        return FLASHCART_ERROR_LOAD;
+        return FLASHCART_ERR_LOAD;
     }
 
     if (f_read(&fil, (void *) (ROM_ADDRESS + rom_offset), file_size, &br) != FR_OK) {
         f_close(&fil);
-        return FLASHCART_ERROR_LOAD;
+        return FLASHCART_ERR_LOAD;
     }
     if (br != file_size) {
         f_close(&fil);
-        return FLASHCART_ERROR_LOAD;
+        return FLASHCART_ERR_LOAD;
     }
 
     if (f_close(&fil) != FR_OK) {
-        return FLASHCART_ERROR_LOAD;
+        return FLASHCART_ERR_LOAD;
     }
 
     return FLASHCART_OK;
 }
 
-static flashcart_error_t sc64_load_save (char *save_path) {
+static flashcart_err_t sc64_load_save (char *save_path) {
     void *address = NULL;
     uint32_t value;
 
     if (sc64_ll_get_config(CFG_ID_SAVE_TYPE, &value) != SC64_OK) {
-        return FLASHCART_ERROR_INT;
+        return FLASHCART_ERR_INT;
     }
 
     sc64_save_type_t type = (sc64_save_type_t) (value);
@@ -258,35 +405,120 @@ static flashcart_error_t sc64_load_save (char *save_path) {
             break;
         case SAVE_TYPE_NONE:
         default:
-            return FLASHCART_ERROR_ARGS;
+            return FLASHCART_ERR_ARGS;
     }
 
     FIL fil;
     UINT br;
 
     if (f_open(&fil, strip_sd_prefix(save_path), FA_READ) != FR_OK) {
-        return FLASHCART_ERROR_LOAD;
+        return FLASHCART_ERR_LOAD;
     }
 
     size_t save_size = f_size(&fil);
 
     if (f_read(&fil, address, save_size, &br) != FR_OK) {
         f_close(&fil);
-        return FLASHCART_ERROR_LOAD;
+        return FLASHCART_ERR_LOAD;
     }
 
     if (f_close(&fil) != FR_OK) {
-        return FLASHCART_ERROR_LOAD;
+        return FLASHCART_ERR_LOAD;
     }
 
     if (br != save_size) {
-        return FLASHCART_ERROR_LOAD;
+        return FLASHCART_ERR_LOAD;
     }
 
     return FLASHCART_OK;
 }
 
-static flashcart_error_t sc64_set_save_type (flashcart_save_type_t save_type) {
+static flashcart_err_t sc64_load_64dd_ipl (char *ipl_path, flashcart_progress_callback_t *progress) {
+    FIL fil;
+    UINT br;
+
+    if (f_open(&fil, strip_sd_prefix(ipl_path), FA_READ) != FR_OK) {
+        return FLASHCART_ERR_LOAD;
+    }
+
+    fix_file_size(&fil);
+
+    size_t ipl_size = f_size(&fil);
+
+    if (ipl_size > MiB(4)) {
+        f_close(&fil);
+        return FLASHCART_ERR_LOAD;
+    }
+
+    size_t chunk_size = KiB(256);
+    for (int offset = 0; offset < ipl_size; offset += chunk_size) {
+        size_t block_size = MIN(ipl_size - offset, chunk_size);
+        if (f_read(&fil, (void *) (IPL_ADDRESS + offset), block_size, &br) != FR_OK) {
+            f_close(&fil);
+            return FLASHCART_ERR_LOAD;
+        }
+        if (progress) {
+            progress(f_tell(&fil) / (float) (f_size(&fil)));
+        }
+    }
+    if (f_tell(&fil) != ipl_size) {
+        f_close(&fil);
+        return FLASHCART_ERR_LOAD;
+    }
+
+    if (f_close(&fil) != FR_OK) {
+        return FLASHCART_ERR_LOAD;
+    }
+
+    return FLASHCART_OK;
+}
+
+static flashcart_err_t sc64_load_64dd_disk (char *disk_path, flashcart_disk_parameters_t *disk_parameters) {
+    sc64_disk_mapping_t mapping = { .count = 0 };
+    uint32_t next_mapping_offset = DISK_MAPPING_ROM_OFFSET;
+
+    // TODO: Support loading multiple disks
+    // LOOP START
+        mapping.disks[mapping.count].thb_table = next_mapping_offset;
+        mapping.disks[mapping.count].sector_table = disk_load_thb_table(mapping.disks[mapping.count].thb_table, disk_parameters);
+        next_mapping_offset = disk_sectors_start(mapping.disks[mapping.count].sector_table);
+        if (file_get_sectors(disk_path, disk_sectors_callback)) {
+            return FLASHCART_ERR_LOAD;
+        }
+        mapping.count += 1;
+    // LOOP END
+
+    if (mapping.count == 0) {
+        return FLASHCART_ERR_ARGS;
+    }
+
+    if (sc64_ll_set_disk_mapping(&mapping) != SC64_OK) {
+        return FLASHCART_ERR_INT;
+    }
+
+    sc64_drive_type_t drive_type = disk_parameters->development_drive ? DRIVE_TYPE_DEVELOPMENT : DRIVE_TYPE_RETAIL;
+
+    const struct {
+        sc64_cfg_id_t id;
+        uint32_t value;
+    } config[] = {
+        { CFG_ID_DD_MODE, DD_MODE_FULL },
+        { CFG_ID_DD_SD_ENABLE, true },
+        { CFG_ID_DD_DRIVE_TYPE, drive_type },
+        { CFG_ID_DD_DISK_STATE, DISK_STATE_INSERTED },
+        { CFG_ID_BUTTON_MODE, BUTTON_MODE_DD_DISK_SWAP },
+    };
+
+    for (int i = 0; i < sizeof(config) / sizeof(config[0]); i++) {
+        if (sc64_ll_set_config(config[i].id, config[i].value) != SC64_OK) {
+            return FLASHCART_ERR_INT;
+        }
+    }
+
+    return FLASHCART_OK;
+}
+
+static flashcart_err_t sc64_set_save_type (flashcart_save_type_t save_type) {
     sc64_save_type_t type;
 
     switch (save_type) {
@@ -315,21 +547,21 @@ static flashcart_error_t sc64_set_save_type (flashcart_save_type_t save_type) {
             type = SAVE_TYPE_FLASHRAM;
             break;
         default:
-            return FLASHCART_ERROR_ARGS;
+            return FLASHCART_ERR_ARGS;
     }
 
     if (sc64_ll_set_config(CFG_ID_SAVE_TYPE, type) != SC64_OK) {
-        return FLASHCART_ERROR_INT;
+        return FLASHCART_ERR_INT;
     }
 
     return FLASHCART_OK;
 }
 
-static flashcart_error_t sc64_set_save_writeback (uint32_t *sectors) {
+static flashcart_err_t sc64_set_save_writeback (uint32_t *sectors) {
     pi_dma_write_data(sectors, SC64_BUFFERS->BUFFER, 1024);
 
     if (sc64_ll_writeback_enable(SC64_BUFFERS->BUFFER) != SC64_OK) {
-        return FLASHCART_ERROR_INT;
+        return FLASHCART_ERR_INT;
     }
 
     return FLASHCART_OK;
@@ -339,9 +571,12 @@ static flashcart_error_t sc64_set_save_writeback (uint32_t *sectors) {
 static flashcart_t flashcart_sc64 = {
     .init = sc64_init,
     .deinit = sc64_deinit,
+    .has_feature = sc64_has_feature,
     .load_rom = sc64_load_rom,
     .load_file = sc64_load_file,
     .load_save = sc64_load_save,
+    .load_64dd_ipl = sc64_load_64dd_ipl,
+    .load_64dd_disk = sc64_load_64dd_disk,
     .set_save_type = sc64_set_save_type,
     .set_save_writeback = sc64_set_save_writeback,
 };

src/flashcart/sc64/sc64_ll.c

@@ -1,5 +1,6 @@
 #include <libdragon.h>
 
+#include "../flashcart_utils.h"
 #include "sc64_ll.h"
 
 
@@ -23,6 +24,7 @@ typedef enum {
     CMD_ID_VERSION_GET          = 'V',
     CMD_ID_CONFIG_GET           = 'c',
     CMD_ID_CONFIG_SET           = 'C',
+    CMD_ID_DISK_MAPPING_SET     = 'D',
     CMD_ID_WRITEBACK_PENDING    = 'w',
     CMD_ID_WRITEBACK_SD_INFO    = 'W',
     CMD_ID_FLASH_WAIT_BUSY      = 'p',
@@ -91,6 +93,32 @@ sc64_error_t sc64_ll_set_config (sc64_cfg_id_t id, uint32_t value) {
     return sc64_ll_execute_cmd(&cmd);
 }
 
+sc64_error_t sc64_ll_set_disk_mapping (sc64_disk_mapping_t *disk_mapping) {
+    int disk_count = disk_mapping->count;
+
+    if (disk_count <= 0 || disk_count > 4) {
+        return SC64_ERROR_BAD_ARGUMENT;
+    }
+
+    uint32_t info[8] __attribute__((aligned(8)));
+
+    for (int i = 0; i < disk_count; i++) {
+        info[i * 2] = disk_mapping->disks[i].thb_table;
+        info[(i * 2) + 1] = disk_mapping->disks[i].sector_table;
+    }
+
+    uint32_t length = (disk_mapping->count * 2 * sizeof(uint32_t));
+
+    pi_dma_write_data(info, SC64_BUFFERS->BUFFER, length);
+
+    sc64_cmd_t cmd = {
+        .id = CMD_ID_DISK_MAPPING_SET,
+        .arg = { (uint32_t) (SC64_BUFFERS->BUFFER), length }
+    };
+
+    return sc64_ll_execute_cmd(&cmd);
+}
+
 sc64_error_t sc64_ll_writeback_pending (bool *pending) {
     sc64_cmd_t cmd = {
         .id = CMD_ID_WRITEBACK_PENDING

src/flashcart/sc64/sc64_ll.h

@@ -110,11 +110,20 @@ typedef enum {
     BUTTON_MODE_DD_DISK_SWAP,
 } sc64_button_mode_t;
 
+typedef struct {
+    int count;
+    struct {
+        uint32_t thb_table;
+        uint32_t sector_table;
+    } disks[4];
+} sc64_disk_mapping_t;
+
 
 void sc64_ll_lock (void);
 sc64_error_t sc64_ll_get_version (uint16_t *major, uint16_t *minor, uint32_t *revision);
 sc64_error_t sc64_ll_get_config (sc64_cfg_id_t cfg, uint32_t *value);
 sc64_error_t sc64_ll_set_config (sc64_cfg_id_t cfg, uint32_t value);
+sc64_error_t sc64_ll_set_disk_mapping (sc64_disk_mapping_t *disk_mapping);
 sc64_error_t sc64_ll_writeback_pending (bool *pending);
 sc64_error_t sc64_ll_writeback_enable (void *address);
 sc64_error_t sc64_ll_flash_wait_busy (void);

src/hdmi/hdmi.c

@@ -1,61 +0,0 @@
-// Implementation based on https://gitlab.com/pixelfx-public/n64-game-id
-
-#include <libdragon.h>
-
-#include "hdmi.h"
-
-
-#define ROM_ADDRESS         (0x10000000)
-#define DDIPL_ADDRESS       (0x06000000)
-#define CONTROLLER_PORT     (0)
-#define GAME_ID_COMMAND     (0x1D)
-
-
-void hdmi_reset_game_id (void) {
-    uint8_t joybus_tx[10];
-    uint8_t joybus_rx[1];
-
-    memset(joybus_tx, 0, sizeof(joybus_tx));
-
-    execute_raw_command(
-        CONTROLLER_PORT,
-        GAME_ID_COMMAND,
-        sizeof(joybus_tx),
-        sizeof(joybus_rx),
-        joybus_tx,
-        joybus_rx
-    );
-}
-
-void hdmi_broadcast_game_id (boot_params_t *boot_params) {
-    uint8_t rom_header[0x40] __attribute__((aligned(8)));
-    uint32_t pi_address = ROM_ADDRESS;
-
-    if (boot_params->device_type == BOOT_DEVICE_TYPE_DD) {
-        pi_address = DDIPL_ADDRESS;
-    }
-
-    dma_read_async(rom_header, pi_address, sizeof(rom_header));
-    dma_wait();
-
-    uint8_t joybus_tx[10];
-    uint8_t joybus_rx[1];
-
-    // Copy CRC
-    memcpy(joybus_tx, rom_header + 0x10, 8);
-
-    // Copy media format
-    joybus_tx[8] = rom_header[0x3B];
-
-    // Copy country code
-    joybus_tx[9] = rom_header[0x3E];
-
-    execute_raw_command(
-        CONTROLLER_PORT,
-        GAME_ID_COMMAND,
-        sizeof(joybus_tx),
-        sizeof(joybus_rx),
-        joybus_tx,
-        joybus_rx
-    );
-}

src/hdmi/hdmi.h

@@ -1,12 +0,0 @@
-#ifndef HDMI_H__
-#define HDMI_H__
-
-
-#include "boot/boot.h"
-
-
-void hdmi_reset_game_id (void);
-void hdmi_broadcast_game_id (boot_params_t *boot_params);
-
-
-#endif

src/main.c

@@ -1,19 +1,14 @@
 #include <libdragon.h>
 
 #include "boot/boot.h"
-#include "hdmi/hdmi.h"
 #include "menu/menu.h"
 
 
 int main (void) {
     boot_params_t boot_params;
 
-    hdmi_reset_game_id();
-
     menu_run(&boot_params);
 
-    hdmi_broadcast_game_id(&boot_params);
-
     disable_interrupts();
 
     boot(&boot_params);

src/menu/actions.c

@@ -3,8 +3,11 @@
 #include "actions.h"
 
 
-#define ACTIONS_REPEAT_DELAY    10
+#define ACTIONS_REPEAT_DELAY    (8)
-#define JOYSTICK_DEADZONE       32
+
+
+static int dir_repeat_delay;
+static joypad_8way_t last_dir = JOYPAD_8WAY_NONE;
 
 
 static void actions_clear (menu_t *menu) {
@@ -12,7 +15,8 @@ static void actions_clear (menu_t *menu) {
     menu->actions.go_down = false;
     menu->actions.go_left = false;
     menu->actions.go_right = false;
-    menu->actions.fast = false;
+    menu->actions.go_fast = false;
+
     menu->actions.enter = false;
     menu->actions.back = false;
     menu->actions.options = false;
@@ -20,93 +24,84 @@ static void actions_clear (menu_t *menu) {
     menu->actions.settings = false;
 }
 
+static void actions_update_direction (menu_t *menu) {
+    joypad_8way_t held_dir = joypad_get_direction(JOYPAD_PORT_1, JOYPAD_2D_DPAD | JOYPAD_2D_STICK);
+    joypad_8way_t fast_dir = joypad_get_direction(JOYPAD_PORT_1, JOYPAD_2D_C);
 
-void actions_update (menu_t *menu) {
+    if (fast_dir != JOYPAD_8WAY_NONE) {
-    controller_scan();
+        held_dir = fast_dir;
-
+        menu->actions.go_fast = true;
-    struct controller_data down = get_keys_down();
-    struct controller_data held = get_keys_held();
-    struct controller_data pressed = get_keys_pressed();
-
-    if (down.c[0].err != ERROR_NONE) {
-        return;
     }
 
-    actions_clear(menu);
+    joypad_8way_t final_dir = held_dir;
 
-    if (down.c[0].up || down.c[0].C_up) {
+    if ((last_dir != held_dir) && (last_dir == JOYPAD_8WAY_NONE)) {
-        menu->actions.go_up = true;
+        dir_repeat_delay = ACTIONS_REPEAT_DELAY;
-        menu->actions.vertical_held_counter = 0;
+    } else if (dir_repeat_delay > 0) {
-        if (down.c[0].C_up) {
+        final_dir = JOYPAD_8WAY_NONE;
-            menu->actions.fast = true;
-        }
-    } else if (down.c[0].down || down.c[0].C_down) {
-        menu->actions.go_down = true;
-        menu->actions.vertical_held_counter = 0;
-        if (down.c[0].C_down) {
-            menu->actions.fast = true;
-        }
-    } else if (held.c[0].up || held.c[0].C_up) {
-        menu->actions.vertical_held_counter += 1;
-        if (menu->actions.vertical_held_counter >= ACTIONS_REPEAT_DELAY) {
-            menu->actions.go_up = true;
-            if (held.c[0].C_up) {
-                menu->actions.fast = true;
-            }
-        }
-    } else if (held.c[0].down || held.c[0].C_down) {
-        menu->actions.vertical_held_counter += 1;
-        if (menu->actions.vertical_held_counter >= ACTIONS_REPEAT_DELAY) {
-            menu->actions.go_down = true;
-            if (held.c[0].C_down) {
-                menu->actions.fast = true;
-            }
-        }
-    } else if (pressed.c[0].y > +JOYSTICK_DEADZONE) { // TODO: requires improvement for responsiveness
-        menu->actions.vertical_held_counter += 1;
-        if (menu->actions.vertical_held_counter >= ACTIONS_REPEAT_DELAY / 2) {
-            menu->actions.go_up = true;
-            if (pressed.c[0].y < +75) {
-                menu->actions.vertical_held_counter = 0;
-            }
-        }
-    } else if (pressed.c[0].y < -JOYSTICK_DEADZONE) { // TODO: requires improvement for responsiveness
-        menu->actions.vertical_held_counter += 1;
-        if (menu->actions.vertical_held_counter >= ACTIONS_REPEAT_DELAY / 2) {
-            menu->actions.go_down = true;
-            if (pressed.c[0].y > -75) {
-                menu->actions.vertical_held_counter = 0;
-            }
-        }
     }
 
-    if (down.c[0].left) {
+    switch (final_dir) {
-        menu->actions.go_left = true;
+        case JOYPAD_8WAY_NONE:
-        menu->actions.horizontal_held_counter = 0;
+            break;
-    } else if (down.c[0].right) {
+        case JOYPAD_8WAY_RIGHT:
             menu->actions.go_right = true;
-        menu->actions.horizontal_held_counter = 0;
+            break;
-    } else if (held.c[0].left) {
+        case JOYPAD_8WAY_UP_RIGHT:
-        menu->actions.horizontal_held_counter += 1;
+            menu->actions.go_up = true;
-        if (menu->actions.horizontal_held_counter >= ACTIONS_REPEAT_DELAY) {
-            menu->actions.go_left = true;
-        }
-    } else if (held.c[0].right) {
-        menu->actions.horizontal_held_counter += 1;
-        if (menu->actions.horizontal_held_counter >= ACTIONS_REPEAT_DELAY) {
             menu->actions.go_right = true;
-        }
+            break;
+        case JOYPAD_8WAY_UP:
+            menu->actions.go_up = true;
+            break;
+        case JOYPAD_8WAY_UP_LEFT:
+            menu->actions.go_up = true;
+            menu->actions.go_left = true;
+            break;
+        case JOYPAD_8WAY_LEFT:
+            menu->actions.go_left = true;
+            break;
+        case JOYPAD_8WAY_DOWN_LEFT:
+            menu->actions.go_down = true;
+            menu->actions.go_left = true;
+            break;
+        case JOYPAD_8WAY_DOWN:
+            menu->actions.go_down = true;
+            break;
+        case JOYPAD_8WAY_DOWN_RIGHT:
+            menu->actions.go_down = true;
+            menu->actions.go_right = true;
+            break;
     }
 
-    if (down.c[0].A) {
+    if (dir_repeat_delay > 0) {
+        dir_repeat_delay -= 1;
+    }
+
+    last_dir = held_dir;
+}
+
+static void actions_update_buttons (menu_t *menu) {    
+    joypad_buttons_t pressed = joypad_get_buttons_pressed(JOYPAD_PORT_1);
+
+    if (pressed.a) {
         menu->actions.enter = true;
-    } else if (down.c[0].B) {
+    } else if (pressed.b) {
         menu->actions.back = true;
-    } else if (down.c[0].R) {
+    } else if (pressed.r) {
         menu->actions.options = true;
-    } else if (down.c[0].L) {
+    } else if (pressed.l) {
         menu->actions.system_info = true;
-    } else if (down.c[0].start) {
+    } else if (pressed.start) {
         menu->actions.settings = true;
     }
 }
+
+
+void actions_update (menu_t *menu) {
+    joypad_poll();
+
+    actions_clear(menu);
+    actions_update_direction(menu);
+    actions_update_buttons(menu);
+}

src/menu/cart_load.c

@@ -1,75 +1,97 @@
+#include <string.h>
+
+#include <libdragon.h>
+
 #include "cart_load.h"
 #include "path.h"
 #include "utils/fs.h"
+#include "utils/utils.h"
 
-
+#ifndef SAVES_SUBDIRECTORY
 #define SAVES_SUBDIRECTORY      "saves"
-#define EMU_LOCATION            "/emulators"
+#endif
+#ifndef DDIPL_LOCATION
+#define DDIPL_LOCATION          "/menu/64ddipl"
+#endif
+#ifndef EMU_LOCATION
+#define EMU_LOCATION            "/menu/emulators"
+#endif
 
 
-static bool create_saves_subdirectory (menu_t *menu) {
+static bool is_64dd_connected (void) {
-    path_t *save_folder_path = path_clone_push(menu->browser.directory, SAVES_SUBDIRECTORY);
+    return (
+        ((io_read(0x05000540) & 0x0000FFFF) == 0x0000) ||
+        (io_read(0x06001010) == 0x2129FFF8)
+    );
+}
+
+static bool create_saves_subdirectory (path_t *path) {
+    path_t *save_folder_path = path_clone(path);
+    path_pop(save_folder_path);
+    path_push(save_folder_path, SAVES_SUBDIRECTORY);
     bool error = directory_create(path_get(save_folder_path));
     path_free(save_folder_path);
     return error;
 }
 
-static flashcart_save_type_t convert_save_type (rom_header_t *header) {
+static flashcart_save_type_t convert_save_type (rom_info_t *info) {
-    switch (rom_db_match_save_type(*header)) {
+    switch (info->save_type) {
-        case DB_SAVE_TYPE_EEPROM_4K:
+        case SAVE_TYPE_EEPROM_4K: return FLASHCART_SAVE_TYPE_EEPROM_4K;
-            return FLASHCART_SAVE_TYPE_EEPROM_4K;
+        case SAVE_TYPE_EEPROM_16K: return FLASHCART_SAVE_TYPE_EEPROM_16K;
-        case DB_SAVE_TYPE_EEPROM_16K:
+        case SAVE_TYPE_SRAM: return FLASHCART_SAVE_TYPE_SRAM;
-            return FLASHCART_SAVE_TYPE_EEPROM_16K;
+        case SAVE_TYPE_SRAM_BANKED: return FLASHCART_SAVE_TYPE_SRAM_BANKED;
-        case DB_SAVE_TYPE_SRAM:
+        case SAVE_TYPE_SRAM_128K: return FLASHCART_SAVE_TYPE_SRAM_128K;
-            return FLASHCART_SAVE_TYPE_SRAM;
+        case SAVE_TYPE_FLASHRAM: return FLASHCART_SAVE_TYPE_FLASHRAM;
-        case DB_SAVE_TYPE_SRAM_BANKED:
+        case SAVE_TYPE_FLASHRAM_PKST2: return FLASHCART_SAVE_TYPE_FLASHRAM_PKST2;
-            return FLASHCART_SAVE_TYPE_SRAM_BANKED;
+        default: return FLASHCART_SAVE_TYPE_NONE;
-        case DB_SAVE_TYPE_SRAM_128K:
-            return FLASHCART_SAVE_TYPE_SRAM_128K;
-        case DB_SAVE_TYPE_FLASHRAM:
-            return FLASHCART_SAVE_TYPE_FLASHRAM;
-        default:
-            return FLASHCART_SAVE_TYPE_NONE;
     }
 }
 
 
 char *cart_load_convert_error_message (cart_load_err_t err) {
     switch (err) {
-        case CART_LOAD_ERR_SAVES_SUBDIR: return "Could not create saves subdirectory";
+        case CART_LOAD_OK: return "Cart load OK";
-        case CART_LOAD_ERR_ROM: return "Error during ROM loading";
+        case CART_LOAD_ERR_ROM_LOAD_FAIL: return "Error occured during ROM loading";
-        case CART_LOAD_ERR_SAVE: return "Error during save creation or loading";
+        case CART_LOAD_ERR_SAVE_LOAD_FAIL: return "Error occured during save loading";
-        case CART_LOAD_ERR_EMU_NOT_FOUND: return "Emulator ROM not found";
+        case CART_LOAD_ERR_64DD_PRESENT: return "64DD accessory is connected to the N64";
-        case CART_LOAD_ERR_EMU: return "Error during emulator ROM loading";
+        case CART_LOAD_ERR_64DD_IPL_NOT_FOUND: return "Required 64DD IPL file was not found";
-        case CART_LOAD_ERR_EMU_ROM: return "Error during emulated ROM loading";
+        case CART_LOAD_ERR_64DD_IPL_LOAD_FAIL: return "Error occured during 64DD IPL loading";
-        default: return "Unknown cart load error";
+        case CART_LOAD_ERR_64DD_DISK_LOAD_FAIL: return "Error occured during 64DD disk loading";
+        case CART_LOAD_ERR_EMU_NOT_FOUND: return "Required emulator file was not found";
+        case CART_LOAD_ERR_EMU_LOAD_FAIL: return "Error occured during emulator ROM loading";
+        case CART_LOAD_ERR_EMU_ROM_LOAD_FAIL: return "Error occured during emulated ROM loading";
+        case CART_LOAD_ERR_CREATE_SAVES_SUBDIR_FAIL: return "Couldn't create saves subdirectory";
+        case CART_LOAD_ERR_EXP_PAK_NOT_FOUND: return "Mandatory Expansion Pak accessory was not found";
+        case CART_LOAD_ERR_FUNCTION_NOT_SUPPORTED: return "Your flashcart doesn't support required functionality";
+        default: return "Unknown error [CART_LOAD]";
     }
 }
 
-cart_load_err_t cart_load_n64_rom_and_save (menu_t *menu, rom_header_t *header, flashcart_progress_callback_t progress) {
+cart_load_err_t cart_load_n64_rom_and_save (menu_t *menu, flashcart_progress_callback_t progress) {
-    path_t *path = path_clone_push(menu->browser.directory, menu->browser.entry->name);
+    path_t *path = path_clone(menu->load.rom_path);
-    bool byte_swap = (header->config_flags == ROM_MID_BIG_ENDIAN);
-    flashcart_save_type_t save_type = convert_save_type(header);
 
-    menu->flashcart_error = flashcart_load_rom(path_get(path), byte_swap, progress);
+    bool byte_swap = (menu->load.rom_info.endianness == ENDIANNESS_BYTE_SWAP);
-    if (menu->flashcart_error != FLASHCART_OK) {
+    flashcart_save_type_t save_type = convert_save_type(&menu->load.rom_info);
+
+    menu->flashcart_err = flashcart_load_rom(path_get(path), byte_swap, progress);
+    if (menu->flashcart_err != FLASHCART_OK) {
         path_free(path);
-        return CART_LOAD_ERR_ROM;
+        return CART_LOAD_ERR_ROM_LOAD_FAIL;
     }
 
     path_ext_replace(path, "sav");
     if (menu->settings.use_saves_folder) {
-        path_push_subdir(path, SAVES_SUBDIRECTORY);
+        if ((save_type != FLASHCART_SAVE_TYPE_NONE) && create_saves_subdirectory(path)) {
-        if ((save_type != FLASHCART_SAVE_TYPE_NONE) && create_saves_subdirectory(menu)) {
             path_free(path);
-            return CART_LOAD_ERR_SAVES_SUBDIR;
+            return CART_LOAD_ERR_CREATE_SAVES_SUBDIR_FAIL;
         }
+        path_push_subdir(path, SAVES_SUBDIRECTORY);
     }
 
-    menu->flashcart_error = flashcart_load_save(path_get(path), save_type);
+    menu->flashcart_err = flashcart_load_save(path_get(path), save_type);
-    if (menu->flashcart_error != FLASHCART_OK) {
+    if (menu->flashcart_err != FLASHCART_OK) {
         path_free(path);
-        return CART_LOAD_ERR_SAVE;
+        return CART_LOAD_ERR_SAVE_LOAD_FAIL;
     }
 
     path_free(path);
@@ -77,8 +99,63 @@ cart_load_err_t cart_load_n64_rom_and_save (menu_t *menu, rom_header_t *header,
     return CART_LOAD_OK;
 }
 
+cart_load_err_t cart_load_64dd_ipl_and_disk (menu_t *menu, flashcart_progress_callback_t progress) {
+    if (!flashcart_has_feature(FLASHCART_FEATURE_64DD)) {
+        return CART_LOAD_ERR_FUNCTION_NOT_SUPPORTED;
+    }
+
+    if (is_64dd_connected()) {
+        return CART_LOAD_ERR_64DD_PRESENT;
+    }
+
+    if (!is_memory_expanded()) {
+        return CART_LOAD_ERR_EXP_PAK_NOT_FOUND;
+    }
+
+    path_t *path = path_init("sd:/", DDIPL_LOCATION);
+    flashcart_disk_parameters_t disk_parameters;
+
+    disk_parameters.development_drive = (menu->load.disk_info.region == DISK_REGION_DEVELOPMENT);
+    disk_parameters.disk_type = menu->load.disk_info.disk_type;
+    memcpy(disk_parameters.bad_system_area_lbas, menu->load.disk_info.bad_system_area_lbas, sizeof(disk_parameters.bad_system_area_lbas));
+    memcpy(disk_parameters.defect_tracks, menu->load.disk_info.defect_tracks, sizeof(disk_parameters.defect_tracks));
+
+    switch (menu->load.disk_info.region) {
+        case DISK_REGION_DEVELOPMENT:
+            path_push(path, "NDXJ0.n64");
+            break;
+        case DISK_REGION_JAPANESE:
+            path_push(path, "NDDJ2.n64");
+            break;
+        case DISK_REGION_USA:
+            path_push(path, "NDDE0.n64");
+            break;
+    }
+
+    if (!file_exists(path_get(path))) {
+        path_free(path);
+        return CART_LOAD_ERR_64DD_IPL_NOT_FOUND;
+    }
+
+    menu->flashcart_err = flashcart_load_64dd_ipl(path_get(path), progress);
+    if (menu->flashcart_err != FLASHCART_OK) {
+        path_free(path);
+        return CART_LOAD_ERR_64DD_IPL_LOAD_FAIL;
+    }
+
+    path_free(path);
+
+    menu->flashcart_err = flashcart_load_64dd_disk(path_get(menu->load.disk_path), &disk_parameters);
+    if (menu->flashcart_err != FLASHCART_OK) {
+        return CART_LOAD_ERR_64DD_DISK_LOAD_FAIL;
+    }
+
+    return CART_LOAD_OK;
+}
+
 cart_load_err_t cart_load_emulator (menu_t *menu, cart_load_emu_type_t emu_type, flashcart_progress_callback_t progress) {
     path_t *path = path_init("sd:/", EMU_LOCATION);
+
     flashcart_save_type_t save_type = FLASHCART_SAVE_TYPE_NONE;
     uint32_t emulated_rom_offset = 0x200000;
     uint32_t emulated_file_offset = 0;
@@ -111,10 +188,10 @@ cart_load_err_t cart_load_emulator (menu_t *menu, cart_load_emu_type_t emu_type,
         return CART_LOAD_ERR_EMU_NOT_FOUND;
     }
 
-    menu->flashcart_error = flashcart_load_rom(path_get(path), false, progress);
+    menu->flashcart_err = flashcart_load_rom(path_get(path), false, progress);
-    if (menu->flashcart_error != FLASHCART_OK) {
+    if (menu->flashcart_err != FLASHCART_OK) {
         path_free(path);
-        return CART_LOAD_ERR_EMU;
+        return CART_LOAD_ERR_EMU_LOAD_FAIL;
     }
 
     path_free(path);
@@ -123,32 +200,32 @@ cart_load_err_t cart_load_emulator (menu_t *menu, cart_load_emu_type_t emu_type,
 
     switch (emu_type) {
         case CART_LOAD_EMU_TYPE_SNES:
-            // The emulator expects the header to be removed from the ROM being uploaded.
+            // NOTE: The emulator expects the header to be removed from the ROM being uploaded.
             emulated_file_offset = ((file_get_size(path_get(path)) & 0x3FF) == 0x200) ? 0x200 : 0;
             break;
         default:
             break;
     }
 
-    menu->flashcart_error = flashcart_load_file(path_get(path), emulated_rom_offset, emulated_file_offset);
+    menu->flashcart_err = flashcart_load_file(path_get(path), emulated_rom_offset, emulated_file_offset);
-    if (menu->flashcart_error != FLASHCART_OK) {
+    if (menu->flashcart_err != FLASHCART_OK) {
         path_free(path);
-        return CART_LOAD_ERR_EMU_ROM;
+        return CART_LOAD_ERR_EMU_ROM_LOAD_FAIL;
     }
 
     path_ext_replace(path, "sav");
     if (menu->settings.use_saves_folder) {
-        path_push_subdir(path, SAVES_SUBDIRECTORY);
+        if ((save_type != FLASHCART_SAVE_TYPE_NONE) && create_saves_subdirectory(path)) {
-        if ((save_type != FLASHCART_SAVE_TYPE_NONE) && create_saves_subdirectory(menu)) {
             path_free(path);
-            return CART_LOAD_ERR_SAVES_SUBDIR;
+            return CART_LOAD_ERR_CREATE_SAVES_SUBDIR_FAIL;
         }
+        path_push_subdir(path, SAVES_SUBDIRECTORY);
     }
 
-    menu->flashcart_error = flashcart_load_save(path_get(path), save_type);
+    menu->flashcart_err = flashcart_load_save(path_get(path), save_type);
-    if (menu->flashcart_error != FLASHCART_OK) {
+    if (menu->flashcart_err != FLASHCART_OK) {
         path_free(path);
-        return CART_LOAD_ERR_SAVE;
+        return CART_LOAD_ERR_SAVE_LOAD_FAIL;
     }
 
     path_free(path);

src/menu/cart_load.h

@@ -8,19 +8,26 @@
 #define CART_LOAD_H__
 
 
+#include "disk_info.h"
 #include "flashcart/flashcart.h"
 #include "menu_state.h"
-#include "rom_database.h"
+#include "rom_info.h"
 
 
 typedef enum {
     CART_LOAD_OK,
-    CART_LOAD_ERR_SAVES_SUBDIR,
+    CART_LOAD_ERR_ROM_LOAD_FAIL,
-    CART_LOAD_ERR_ROM,
+    CART_LOAD_ERR_SAVE_LOAD_FAIL,
-    CART_LOAD_ERR_SAVE,
+    CART_LOAD_ERR_64DD_PRESENT,
+    CART_LOAD_ERR_64DD_IPL_NOT_FOUND,
+    CART_LOAD_ERR_64DD_IPL_LOAD_FAIL,
+    CART_LOAD_ERR_64DD_DISK_LOAD_FAIL,
     CART_LOAD_ERR_EMU_NOT_FOUND,
-    CART_LOAD_ERR_EMU,
+    CART_LOAD_ERR_EMU_LOAD_FAIL,
-    CART_LOAD_ERR_EMU_ROM,
+    CART_LOAD_ERR_EMU_ROM_LOAD_FAIL,
+    CART_LOAD_ERR_CREATE_SAVES_SUBDIR_FAIL,
+    CART_LOAD_ERR_EXP_PAK_NOT_FOUND,
+    CART_LOAD_ERR_FUNCTION_NOT_SUPPORTED,
 } cart_load_err_t;
 
 typedef enum {
@@ -33,7 +40,8 @@ typedef enum {
 
 
 char *cart_load_convert_error_message (cart_load_err_t err);
-cart_load_err_t cart_load_n64_rom_and_save (menu_t *menu, rom_header_t *header, flashcart_progress_callback_t progress);
+cart_load_err_t cart_load_n64_rom_and_save (menu_t *menu, flashcart_progress_callback_t progress);
+cart_load_err_t cart_load_64dd_ipl_and_disk (menu_t *menu, flashcart_progress_callback_t progress);
 cart_load_err_t cart_load_emulator (menu_t *menu, cart_load_emu_type_t emu_type, flashcart_progress_callback_t progress);
 
 

src/menu/components.h

@@ -59,7 +59,7 @@ typedef struct {
     surface_t *image;
 } component_boxart_t;
 
-component_boxart_t *component_boxart_init (uint8_t media_type, uint16_t id);
+component_boxart_t *component_boxart_init (char *game_code);
 void component_boxart_free (component_boxart_t *b);
 void component_boxart_draw (component_boxart_t *b);
 

src/menu/components/boxart.c

@@ -17,24 +17,23 @@ static void png_decoder_callback (png_err_t err, surface_t *decoded_image, void
 }
 
 
-component_boxart_t *component_boxart_init (uint8_t media_type, uint16_t id) {
+component_boxart_t *component_boxart_init (char *game_code) {
     component_boxart_t *b = calloc(1, sizeof(component_boxart_t));
 
     if (b) {
         b->loading = true;
-        char *path = alloca(strlen(BOXART_DIRECTORY) + 1 + 7 + 1); // allocate for the largest path.
+        char *path = alloca(strlen(BOXART_DIRECTORY) + 1 + 7 + 1);
-        sprintf(path, "%s/%c%c%c.png", BOXART_DIRECTORY, (media_type & 0xFF), ((id >> 8) & 0xFF), (id & 0xFF));
-
-        // if the file does not exist, also check for just the id.
-        if (!file_exists(path)) {
-            sprintf(path, "%s/%c%c.png", BOXART_DIRECTORY, ((id >> 8) & 0xFF), (id & 0xFF));
-        }
 
+        // TODO: This is bad, we should only check for 3 letter codes
+        sprintf(path, "%s/%.3s.png", BOXART_DIRECTORY, game_code);
+        if (png_decoder_start(path, BOXART_WIDTH, BOXART_HEIGHT, png_decoder_callback, b) != PNG_OK) {
+            sprintf(path, "%s/%.2s.png", BOXART_DIRECTORY, &game_code[1]);
             if (png_decoder_start(path, BOXART_WIDTH, BOXART_HEIGHT, png_decoder_callback, b) != PNG_OK) {
                 free(b);
                 b = NULL;
             }
         }
+    }
 
     return b;
 }

src/menu/components/common.c

@@ -122,8 +122,8 @@ void component_messagebox_draw (char *fmt, ...) {
     }, FNT_DEFAULT, formatted, &paragraph_nbytes);
 
     component_dialog_draw(
-        paragraph->bbox[2] - paragraph->bbox[0] + MESSAGEBOX_MARGIN,
+        paragraph->bbox.x1 - paragraph->bbox.x0 + MESSAGEBOX_MARGIN,
-        paragraph->bbox[3] - paragraph->bbox[1] + MESSAGEBOX_MARGIN
+        paragraph->bbox.y1 - paragraph->bbox.y0 + MESSAGEBOX_MARGIN
     );
 
     rdpq_paragraph_render(paragraph, DISPLAY_CENTER_X - (MESSAGEBOX_MAX_WIDTH / 2), VISIBLE_AREA_Y0);

src/menu/components/context_menu.c

@@ -69,15 +69,15 @@ void component_context_menu_draw (component_context_menu_t *cm) {
 
     rdpq_paragraph_t *layout = rdpq_paragraph_builder_end();
 
-    int width = layout->bbox[2] - layout->bbox[0] + MESSAGEBOX_MARGIN;
+    int width = layout->bbox.x1 - layout->bbox.x0 + MESSAGEBOX_MARGIN;
-    int height = layout->bbox[3] - layout->bbox[1] + MESSAGEBOX_MARGIN;
+    int height = layout->bbox.y1 - layout->bbox.y0 + MESSAGEBOX_MARGIN;
 
     component_dialog_draw(width, height);
 
     int highlight_x0 = DISPLAY_CENTER_X - (width / 2);
     int highlight_x1 = DISPLAY_CENTER_X + (width / 2);
-    int highlight_height = (layout->bbox[3] - layout->bbox[1]) / layout->nlines;
+    int highlight_height = (layout->bbox.y1 - layout->bbox.y0) / layout->nlines;
-    int highlight_y = VISIBLE_AREA_Y0 + layout->bbox[1] + ((cm->selected) * highlight_height);
+    int highlight_y = VISIBLE_AREA_Y0 + layout->bbox.y0 + ((cm->selected) * highlight_height);
 
     component_box_draw(
         highlight_x0,

src/menu/components/file_list.c

@@ -105,7 +105,7 @@ void component_file_list_draw (entry_t *list, int entries, int selected) {
 
         layout = rdpq_paragraph_builder_end();
 
-        int highlight_height = (layout->bbox[3] - layout->bbox[1]) / layout->nlines;
+        int highlight_height = (layout->bbox.y1 - layout->bbox.y0) / layout->nlines;
         int highlight_y = VISIBLE_AREA_Y0 + TEXT_MARGIN_VERTICAL + ((selected - starting_position) * highlight_height);
 
         component_box_draw(

src/menu/disk_info.c

@@ -0,0 +1,212 @@
+#include <fatfs/ff.h>
+#include <stdbool.h>
+#include <stdint.h>
+#include <string.h>
+
+#include "disk_info.h"
+#include "utils/fs.h"
+
+
+#define SECTORS_PER_BLOCK                   (85)
+#define DISK_ZONES                          (16)
+#define DISK_BAD_TRACKS_PER_ZONE            (12)
+
+#define SYSTEM_AREA_SECTOR_LENGTH           (232)
+#define SYSTEM_AREA_LBA_LENGTH              (SYSTEM_AREA_SECTOR_LENGTH * SECTORS_PER_BLOCK)
+#define SYSTEM_AREA_LBA_COUNT               (24)
+
+#define SYSTEM_DATA_LBA_COUNT               (8)
+#define DISK_ID_LBA_COUNT                   (2)
+
+#define DEV_SYSTEM_DATA_SECTOR_LENGTH       (192)
+#define RETAIL_SYSTEM_DATA_SECTOR_LENGTH    (232)
+
+#define REGION_ID_DEVELOPMENT               (0x00000000)
+#define REGION_ID_JAPANESE                  (0xE848D316)
+#define REGION_ID_USA                       (0x2263EE56)
+
+#define GET_U32(b)                          (((b)[0] << 24) | ((b)[1] << 16) | ((b)[2] << 8) | (b)[3])
+
+
+static const int tracks_per_zone[DISK_ZONES] = {
+    158, 158, 149, 149, 149, 149, 149, 114, 158, 158, 149, 149, 149, 149, 149, 114
+};
+static const int system_data_lbas[SYSTEM_DATA_LBA_COUNT] = {
+    9, 8, 1, 0, 11, 10, 3, 2
+};
+static const int disk_id_lbas[DISK_ID_LBA_COUNT] = {
+    15, 14
+};
+
+
+static bool load_system_area_lba (FIL *fil, int lba, uint8_t *buffer) {
+    UINT bytes_read;
+    if (lba >= SYSTEM_AREA_LBA_COUNT) {
+        return true;
+    }
+    if (f_lseek(fil, SYSTEM_AREA_LBA_LENGTH * lba) != FR_OK) {
+        return true;
+    }
+    if (f_read(fil, buffer, SYSTEM_AREA_LBA_LENGTH, &bytes_read) != FR_OK) {
+        return true;
+    }
+    if (bytes_read != SYSTEM_AREA_LBA_LENGTH) {
+        return true;
+    }
+    return false;
+}
+
+static bool verify_system_area_lba (uint8_t *buffer, int sector_length) {
+    for (int sector = 1; sector < SECTORS_PER_BLOCK; sector++) {
+        for (int i = 0; i < sector_length; i++) {
+            if (buffer[i] != buffer[(sector * sector_length) + i]) {
+                return false;
+            }
+        }
+    }
+    return true;
+}
+
+static bool verify_system_data_lba (uint8_t *buffer) {
+    return (
+        (buffer[4] == 0x10) &&
+        ((buffer[5] & 0xF0) == 0x10) &&
+        ((buffer[5] & 0x0F) <= DISK_TYPE_6) &&
+        (GET_U32(&buffer[24]) == 0xFFFFFFFF)
+    );
+}
+
+static bool set_defect_tracks (uint8_t *buffer, disk_info_t *disk_info) {
+    for (int head_zone = 0; head_zone < DISK_ZONES; head_zone++) {
+        uint8_t start = ((head_zone == 0) ? 0 : buffer[7 + head_zone]);
+        uint8_t end = buffer[7 + head_zone + 1];
+        if ((end - start) > DISK_BAD_TRACKS_PER_ZONE) {
+            return false;
+        }
+        int track = 0;
+        for (int offset = start; offset < end; offset++) {
+            disk_info->defect_tracks[head_zone][track++] = buffer[0x20 + offset];
+        }
+        for (int i = 0; track < DISK_BAD_TRACKS_PER_ZONE; i++) {
+            disk_info->defect_tracks[head_zone][track++] = tracks_per_zone[head_zone] - i - 1;
+        }
+    }
+    return true;
+}
+
+static void update_bad_system_area_lbas (disk_info_t *disk_info) {
+    if (disk_info->region == DISK_REGION_DEVELOPMENT) {
+        disk_info->bad_system_area_lbas[0] = true;
+        disk_info->bad_system_area_lbas[1] = true;
+        disk_info->bad_system_area_lbas[8] = true;
+        disk_info->bad_system_area_lbas[9] = true;
+    } else {
+        disk_info->bad_system_area_lbas[2] = true;
+        disk_info->bad_system_area_lbas[3] = true;
+        disk_info->bad_system_area_lbas[10] = true;
+        disk_info->bad_system_area_lbas[11] = true;
+        disk_info->bad_system_area_lbas[12] = true;
+    }
+
+    for (int lba = 16; lba < SYSTEM_AREA_LBA_COUNT; lba++) {
+        disk_info->bad_system_area_lbas[lba] = true;
+    }
+}
+
+static disk_err_t load_and_verify_system_data_lba (FIL *fil, disk_info_t *disk_info) {
+    uint8_t buffer[SYSTEM_AREA_LBA_LENGTH];
+    int sector_length;
+
+    bool valid_system_data_lba_found = false;
+
+    for (int i = 0; i < SYSTEM_DATA_LBA_COUNT; i++) {
+        int lba = system_data_lbas[i];
+
+        if (load_system_area_lba(fil, lba, buffer)) {
+            return DISK_ERR_IO;
+        }
+
+        switch (GET_U32(&buffer[0])) {
+            case REGION_ID_DEVELOPMENT:
+                disk_info->region = DISK_REGION_DEVELOPMENT;
+                sector_length = DEV_SYSTEM_DATA_SECTOR_LENGTH;
+                break;
+            case REGION_ID_JAPANESE:
+                disk_info->region = DISK_REGION_JAPANESE;
+                sector_length = RETAIL_SYSTEM_DATA_SECTOR_LENGTH;
+                break;
+            case REGION_ID_USA:
+                disk_info->region = DISK_REGION_USA;
+                sector_length = RETAIL_SYSTEM_DATA_SECTOR_LENGTH;
+                break;
+            default:
+                disk_info->bad_system_area_lbas[lba] = true;
+                continue;
+        }
+
+        if (verify_system_area_lba(buffer, sector_length) && verify_system_data_lba(buffer) && set_defect_tracks(buffer, disk_info)) {
+            valid_system_data_lba_found = true;
+            disk_info->disk_type = (buffer[5] & 0x0F);
+        } else {
+            disk_info->bad_system_area_lbas[lba] = true;
+        }
+    }
+
+    return valid_system_data_lba_found ? DISK_OK : DISK_ERR_INVALID;
+}
+
+static disk_err_t load_and_verify_disk_id_lba (FIL *fil, disk_info_t *disk_info) {
+    uint8_t buffer[SYSTEM_AREA_LBA_LENGTH];
+
+    bool valid_disk_id_lba_found = false;
+
+    for (int i = 0; i < DISK_ID_LBA_COUNT; i++) {
+        int lba = disk_id_lbas[i];
+
+        if (load_system_area_lba(fil, lba, buffer)) {
+            return DISK_ERR_IO;
+        }
+
+        if (verify_system_area_lba(buffer, SYSTEM_AREA_SECTOR_LENGTH)) {
+            valid_disk_id_lba_found = true;
+            memcpy(disk_info->id, &buffer[0], sizeof(disk_info->id));
+            disk_info->version = buffer[4];
+        } else {
+            disk_info->bad_system_area_lbas[lba] = true;
+        }
+    }
+
+    return valid_disk_id_lba_found ? DISK_OK : DISK_ERR_INVALID;
+}
+
+
+disk_err_t disk_info_load (char *path, disk_info_t *disk_info) {
+    FIL fil;
+    disk_err_t err;
+
+    for (int i = 0; i < SYSTEM_AREA_LBA_COUNT; i++) {
+        disk_info->bad_system_area_lbas[i] = false;
+    }
+
+    if (f_open(&fil, strip_sd_prefix(path), FA_READ) != FR_OK) {
+        return DISK_ERR_NO_FILE;
+    }
+
+    if ((err = load_and_verify_system_data_lba(&fil, disk_info)) != DISK_OK) {
+        f_close(&fil);
+        return err;
+    }
+
+    if ((err = load_and_verify_disk_id_lba(&fil, disk_info)) != DISK_OK) {
+        f_close(&fil);
+        return err;
+    }
+
+    if (f_close(&fil) != FR_OK) {
+        return DISK_ERR_IO;
+    }
+
+    update_bad_system_area_lbas(disk_info);
+
+    return DISK_OK;
+}

src/menu/disk_info.h

@@ -0,0 +1,52 @@
+/**
+ * @file disk_info.h
+ * @brief 64DD disk information
+ * @ingroup menu 
+ */
+
+#ifndef DISK_INFO_H__
+#define DISK_INFO_H__
+
+
+#include <stdbool.h>
+#include <stdint.h>
+
+
+typedef enum {
+    DISK_OK,
+    DISK_ERR_IO,
+    DISK_ERR_NO_FILE,
+    DISK_ERR_INVALID,
+} disk_err_t;
+
+typedef enum {
+    DISK_REGION_DEVELOPMENT,
+    DISK_REGION_JAPANESE,
+    DISK_REGION_USA,
+} disk_region_t;
+
+typedef enum {
+    DISK_TYPE_0,
+    DISK_TYPE_1,
+    DISK_TYPE_2,
+    DISK_TYPE_3,
+    DISK_TYPE_4,
+    DISK_TYPE_5,
+    DISK_TYPE_6,
+} disk_type_t;
+
+typedef struct {
+    disk_region_t region;
+    disk_type_t disk_type;
+    char id[4];
+    uint8_t version;
+
+    bool bad_system_area_lbas[24];
+    uint8_t defect_tracks[16][12];
+} disk_info_t;
+
+
+disk_err_t disk_info_load (char *path, disk_info_t *disk_info);
+
+
+#endif

src/menu/hdmi.c

@@ -0,0 +1,34 @@
+#include <libdragon.h>
+
+#include "hdmi.h"
+
+
+#define ROM_ADDRESS         (0x10000000)
+#define DDIPL_ADDRESS       (0x06000000)
+
+
+void hdmi_clear_game_id (void) {
+    pixelfx_clear_game_id();
+}
+
+void hdmi_send_game_id (boot_params_t *boot_params) {
+    uint8_t rom_header[0x40] __attribute__((aligned(8)));
+    uint32_t pi_address = ROM_ADDRESS;
+
+    if (boot_params->device_type == BOOT_DEVICE_TYPE_64DD) {
+        pi_address = DDIPL_ADDRESS;
+    }
+
+    dma_read_async(rom_header, pi_address, sizeof(rom_header));
+    dma_wait();
+
+    uint64_t rom_check_code;
+    uint8_t media_format;
+    uint8_t region_code;
+
+    memcpy((uint8_t *) (&rom_check_code), rom_header + 0x10, sizeof(rom_check_code));
+    media_format = rom_header[0x3B];
+    region_code = rom_header[0x3E];
+
+    pixelfx_send_game_id(rom_check_code, media_format, region_code);
+}

src/menu/hdmi.h

@@ -0,0 +1,12 @@
+#ifndef HDMI_H__
+#define HDMI_H__
+
+
+#include "boot/boot.h"
+
+
+void hdmi_clear_game_id (void);
+void hdmi_send_game_id (boot_params_t *boot_params);
+
+
+#endif

src/menu/menu.c

@@ -8,6 +8,7 @@
 #include "boot/boot.h"
 #include "flashcart/flashcart.h"
 #include "fonts.h"
+#include "hdmi.h"
 #include "menu_state.h"
 #include "menu.h"
 #include "mp3_player.h"
@@ -53,12 +54,12 @@ static void frame_counter_reset (void) {
 }
 
 static void menu_init (boot_params_t *boot_params) {
-    controller_init();
+    joypad_init();
     timer_init();
     rtc_init();
     rspq_init();
     rdpq_init();
-    fonts_init();
+
     sound_init_default();
 
     menu = calloc(1, sizeof(menu_t));
@@ -67,8 +68,8 @@ static void menu_init (boot_params_t *boot_params) {
     menu->mode = MENU_MODE_NONE;
     menu->next_mode = MENU_MODE_STARTUP;
 
-    menu->flashcart_error = flashcart_init();
+    menu->flashcart_err = flashcart_init();
-    if (menu->flashcart_error != FLASHCART_OK) {
+    if (menu->flashcart_err != FLASHCART_OK) {
         menu->next_mode = MENU_MODE_FAULT;
     }
 
@@ -88,21 +89,31 @@ static void menu_init (boot_params_t *boot_params) {
     menu->browser.valid = false;
     menu->browser.directory = path_init("sd:/", init_directory);
 
+    menu->load.rom_path = NULL;
+
+    hdmi_clear_game_id();
+
     tv_type = get_tv_type();
-    if ((tv_type == TV_PAL) && menu->settings.pal60) {
+    if ((tv_type == TV_PAL) && menu->settings.pal60_enabled) {
         // HACK: Set TV type to NTSC, so PAL console would output 60 Hz signal instead.
         TV_TYPE_RAM = TV_NTSC;
     }
 
-    display_init(RESOLUTION_640x480, DEPTH_16_BPP, 2, GAMMA_NONE, ANTIALIAS_OFF);
+    display_init(RESOLUTION_640x480, DEPTH_16_BPP, 2, GAMMA_NONE, FILTERS_DISABLED);
 
     register_VI_handler(frame_counter_handler);
+    
+    fonts_init();
 }
 
 static void menu_deinit (menu_t *menu) {
+    unregister_VI_handler(frame_counter_handler);
+
     // NOTE: Restore previous TV type so boot procedure wouldn't passthrough wrong value.
     TV_TYPE_RAM = tv_type;
 
+    hdmi_send_game_id(menu->boot_params);
+
     path_free(menu->browser.directory);
     free(menu);
 
@@ -110,13 +121,13 @@ static void menu_deinit (menu_t *menu) {
 
     flashcart_deinit();
 
-    sound_close();
+    sound_deinit();
+
     rdpq_close();
     rspq_close();
     rtc_close();
     timer_close();
-
+    joypad_close();
-    unregister_VI_handler(frame_counter_handler);
 
     display_close();
 }
@@ -136,6 +147,7 @@ static struct views_s {
     { view_music_player_init, view_music_player_display }, // MENU_MODE_MUSIC_PLAYER
     { view_credits_init, view_credits_display }, // MENU_MODE_CREDITS
     { view_load_rom_init, view_load_rom_display }, // MENU_MODE_LOAD_ROM
+    { view_load_disk_init, view_load_disk_display }, // MENU_MODE_LOAD_DISK
     { view_load_emulator_init, view_load_emulator_display }, // MENU_MODE_LOAD_EMULATOR
     { view_error_init, view_error_display }, // MENU_MODE_ERROR
     { view_fault_init, view_fault_display }, // MENU_MODE_FAULT

src/menu/menu_state.h

@@ -9,9 +9,12 @@
 
 
 #include <time.h>
+
 #include "boot/boot.h"
+#include "disk_info.h"
 #include "flashcart/flashcart.h"
 #include "path.h"
+#include "rom_info.h"
 #include "settings.h"
 
 
@@ -29,6 +32,7 @@ typedef enum {
     MENU_MODE_MUSIC_PLAYER,
     MENU_MODE_CREDITS,
     MENU_MODE_LOAD_ROM,
+    MENU_MODE_LOAD_DISK,
     MENU_MODE_LOAD_EMULATOR,
     MENU_MODE_ERROR,
     MENU_MODE_FAULT,
@@ -40,6 +44,7 @@ typedef enum {
 typedef enum {
     ENTRY_TYPE_DIR,
     ENTRY_TYPE_ROM,
+    ENTRY_TYPE_DISK,
     ENTRY_TYPE_EMULATOR,
     ENTRY_TYPE_SAVE,
     ENTRY_TYPE_IMAGE,
@@ -61,9 +66,9 @@ typedef struct {
 
     settings_t settings;
     boot_params_t *boot_params;
-    flashcart_error_t flashcart_error;
 
     char *error_message;
+    flashcart_err_t flashcart_err;
 
     time_t current_time;
 
@@ -72,9 +77,7 @@ typedef struct {
         bool go_down;
         bool go_left;
         bool go_right;
-        bool fast;
+        bool go_fast;
-        int vertical_held_counter;
-        int horizontal_held_counter;
 
         bool enter;
         bool back;
@@ -91,6 +94,13 @@ typedef struct {
         entry_t *entry;
         int selected;
     } browser;
+
+    struct {
+        path_t *rom_path;
+        rom_info_t rom_info;
+        path_t *disk_path;
+        disk_info_t disk_info;
+    } load;
 } menu_t;
 
 

src/menu/rom_database.c

@@ -1,278 +0,0 @@
-#include <libdragon.h>
-#include "rom_database.h"
-#include <stdint.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-
-uint8_t extract_homebrew_setting(uint8_t setting, uint8_t bit_position) {
-    return (setting & (1 << bit_position)) ? 1 : 0;
-}
-
-/**
- * @brief Normalize the Homebrew save type.
- */
-uint8_t extract_homebrew_save_type(uint8_t save_type) {
-    switch (save_type) {
-        case HB_SAVE_TYPE_NONE:
-            return DB_SAVE_TYPE_NONE;
-        case HB_SAVE_TYPE_EEPROM_4K:
-            return DB_SAVE_TYPE_EEPROM_4K;
-        case HB_SAVE_TYPE_EEPROM_16K:
-            return DB_SAVE_TYPE_EEPROM_16K;
-        case HB_SAVE_TYPE_SRAM:
-            return DB_SAVE_TYPE_SRAM;
-        case HB_SAVE_TYPE_SRAM_BANKED:
-            return DB_SAVE_TYPE_SRAM_BANKED;
-        case HB_SAVE_TYPE_FLASHRAM:
-            return DB_SAVE_TYPE_FLASHRAM;
-        case HB_SAVE_TYPE_SRAM_128K:
-            return DB_SAVE_TYPE_SRAM_128K;
-        default:
-            return DB_SAVE_TYPE_INVALID; // Invalid save type, handle accordingly
-    }
-}
-
-
-/**
- * @brief Reads the N64 ROM header from a file. @see https://n64brew.dev/wiki/ROM_Header
- */
-rom_header_t file_read_rom_header(char *path) {
-    FILE *fp = fopen(path, "rb");
-
-    debugf("loading path: %s\n", path);
-	if (!fp) {
-        debugf("Error loading rom file header\n");
-    }
-
-    rom_header_t *rom_header = malloc(sizeof(rom_header_t));
-
-    fseek(fp, 0x00, SEEK_SET);
-    fread(&(rom_header->config_flags), sizeof(rom_header->config_flags), 1, fp);
-
-    // FIXME: handle endian appropriately, perhaps: cart_card_byteswap
-
-    fseek(fp, 0x04, SEEK_SET);
-    fread(&(rom_header->clock_rate), sizeof(rom_header->clock_rate), 1, fp);
-    fseek(fp, 0x08, SEEK_SET);
-    fread(&(rom_header->boot_address), sizeof(rom_header->boot_address), 1, fp);
-    fseek(fp, 0x0C, SEEK_SET);
-    fread(&(rom_header->sdk_version), sizeof(rom_header->sdk_version), 1, fp);
-    fseek(fp, 0x10, SEEK_SET);
-    fread(&(rom_header->checksum), sizeof(rom_header->checksum), 1, fp);
-    fseek(fp, 0x18, SEEK_SET);
-    fread(&(rom_header->unknown_reserved_1), sizeof(rom_header->unknown_reserved_1), 1, fp);
-    fseek(fp, 0x20, SEEK_SET);
-    fgets(rom_header->title, sizeof(rom_header->title), fp);
-    fseek(fp, 0x34, SEEK_SET);
-    fread(&(rom_header->unknown_reserved_2), sizeof(rom_header->unknown_reserved_2), 1, fp);
-    fseek(fp, 0x3B, SEEK_SET);
-    fread(&(rom_header->metadata.media_type), sizeof(rom_header->metadata.media_type), 1, fp);
-    fseek(fp, 0x3C, SEEK_SET);
-    fread(&(rom_header->metadata.unique_identifier), sizeof(rom_header->metadata.unique_identifier), 1, fp);
-    fseek(fp, 0x3E, SEEK_SET);
-    fread(&(rom_header->metadata.destination_market), sizeof(rom_header->metadata.destination_market), 1, fp);
-    fseek(fp, 0x3F, SEEK_SET);
-    fread(&(rom_header->metadata.version), sizeof(rom_header->metadata.version), 1, fp);
-    fseek(fp, 0x40, SEEK_SET);
-    fread(&(rom_header->ipl_boot_code), sizeof(rom_header->ipl_boot_code), 1, fp);
-
-    fclose(fp);
-
-    // FIXME: memory leak, rom header is copied, pointer should be returned instead or data freed before returning
-    return *rom_header;
-}
-
-// TODO: make sure this can also handle an external input file.
-
-uint8_t rom_db_match_save_type(rom_header_t rom_header) {
-
-    // These are ordered to ensure they are handled correctly... (presumes big endian)
-
-    // First: Match by the `ED` or `HB` Developer ID
-    if (rom_header.metadata.unique_identifier == *(uint16_t *)"ED" || rom_header.metadata.unique_identifier == *(uint16_t *)"HB") {
-// #ifdef ED64_COMPATIBLE        
-//         uint8_t low_nibble = rom_header.metadata.version & 0x0F;
-//         uint8_t rtc_enabled = extract_homebrew_setting(low_nibble, 0); // Bit 0
-//         uint8_t region_free_enabled = extract_homebrew_setting(low_nibble, 1); // Bit 1
-// #endif
-
-        uint8_t high_nibble = (rom_header.metadata.version >> 4) & 0x0F;
-
-        return extract_homebrew_save_type(high_nibble);
-    }
-
-    // Second: Match the default entries for crc.
-    // DOUBUTSU BANCHOU (ANIMAL LEADER, Cubivore) - Contains no game ID
-    if (rom_header.checksum == 0xEB85EBC9596682AF) return DB_SAVE_TYPE_FLASHRAM;
-    // DK Retail kiosk demo (shares ID with Dinosaur planet, but hacks are unlikely)!
-    if (rom_header.checksum == 0x0DD4ABABB5A2A91E) return DB_SAVE_TYPE_EEPROM_16K;
-    // DMTJ 64DD game
-    // if (rom_header.checksum == 0x4cbc3b56) return DB_SAVE_TYPE_SRAM;
-    
-
-    // FIXME: we need to take into account the Category (first char) and the Region code (last char) before a general match of the ID.
-
-    // Finally: Match the default entries for "unique" ROM ID.
-    // It is useful to use this rather than CRC's so that ROM hacks continue to work.
-    static char *cart_ids[] = {
-        // EEP4K
-        "AB", "AD", "AG", "BC", "BD", "BH", "BK", "BM", "BN", "BV", "B6", "CG", "CH", "CR", "CT", "CU",
-        "CX", "DR", "DQ", "DU", "DY", "D3", "D4", "EA", "ER", "FG", "FH", "FW", "FX", "FY", "GC", "GE",
-        "GF", "GU", "GV", "HA", "HF", "HP", "IC", "IJ", "IR", "JM", "K2", "KA", "KI", "KT", "LB", "LR",
-        "MG", "MI", "ML", "MO", "MR", "MS", "MU", "MW", "N6", "NA", "OH", "PG", "PW", "PY", "RC", "RS",
-        "S6", "SA", "SC", "SM", "SU", "SV", "SW", "TB", "TC", "TJ", "TM", "TN", "TP", "TR", "TX", "T6",
-        "VL", "VY", "WC", "WL", "WQ", "WR", "WU", "XO", "4W", "GL", "O2", "OS", "PM", "PT", "SN", "SB",
-        "SS",  
-        // EEP16K
-        "B7", "CW", "CZ", "DO", "D2", "D6", "EP", "EV", "FU", "F2", "IM", "M8", "MV", "MX", "NB", "NX",
-        "PD", "RZ", "UB", "X7", "YS", "3D", "R7",
-        // SRAM
-        "AL", "AY", "A2", "DA", "FZ", "GP", "G6", "K4", "KG", "MF", "OB", "RE", "RI", "TE", "VB", "VP",
-        "WI", "W2", "WX", "WZ", "YW", "ZL", "B5", "IB", "JG", "UT", "UM", "T3",
-        // SRAM_BANKED
-        "DZ",
-        // SRAM_128K
-
-        // FLASHRAM
-        "AF", "CC", "CK", "DL", "DP", "JD", "JF", "KJ", "M6", "MQ", "P2", "P3", "PF", "PH", "PN", "PO",
-        "PS", "RH", "SI", "SQ", "T9", "W4", "ZS", "DA",
-        // Controller Pak required
-        "2V", "32", "3P", "3T", "8W", "AC", "AM", "AR", "B4", "BF", "BL", "BO", "BP", "BQ", "BR", "BX",
-        "BY", "CD", "CE", "CL", "CO", "CS", "DE", "DH", "DM", "DN", "DT", "EG", "ET", "F9", "FD", "FF",
-        "FO", "FQ", "G2", "G5", "GA", "GM", "GN", "GR", "GX", "HC", "HT", "HX", "HW", "HV", "IV", "KK",
-        "L2", "LG", "M4", "MB", "MY", "NC", "NS", "O7", "OF", "2P", "PR", "PU", "PX", "R2", "R3", "R6",
-        "RK", "RO", "RP", "RR", "RT", "RU", "RV", "RX", "SD", "SF", "SG", "SK", "SL", "SP", "SX", "SY",
-        "T4", "TA", "TF", "TH", "TQ", "WB", "X2", "X3", "Y2", "V3", "V8", "VC", "VG", "VR", "WD", "WO",
-        "WP", "WT", "XF", "YP", "ZO",
-
-        // Definitely none
-        // "JQ", // Batman Beyond: Return of the Joker 
-        // "CB", // Charlie Blast's Territory (Password)
-        // "CF", // Clayfighter 63 1/3 
-        // "C2", // Clayfighter: Sculptor's Cut
-        // "DK", // Dark Rift
-        // "EL", // Elmo's Letter Adventure
-        // Elmo's Number Journey
-        // "JO", // Jeopardy!
-        // "KE", // Knife Edge: Nosegunner
-        // "ME", // Mace: The Dark Age
-        // "MT", //Magical Tetris Challenge
-        // "M3", //Monster Truck Madness (Password)
-        // "MK", //Mortal Kombat Trilogy
-        // Powerpuff Girls: Chemical X Traction (Password)
-        // "RG", //Rugrats: Scavenger Hunt
-        // "CY", //South Park: Chef's Luv Shack
-        // "OH", //Transformers Beast Wars: Transmetals
-        // "WA", //War Gods
-        // "WF", //Wheel of Fortune
-
-        // To work out
-        // "AH", "BW", "GB", "LC", "2V", "DW", "M3", "MK", "NC", "WA",
-
-        // Last entry
-        "\0\0"
-
-    };
-    static int save_types[] = {
-        // EEP4K
-        0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
-        0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
-        0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
-        0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
-        0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
-        0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
-        0x01,
-        // EEP16K
-        0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02,
-        0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02,
-        // SRAM
-        0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03,
-        0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03,
-        // SRAM_BANKED
-        0x04,
-        // SRAM_128K
-
-        // FLASHRAM
-        0x06, 0x06, 0x06, 0x06, 0x06, 0x06, 0x06, 0x06, 0x06, 0x06, 0x06, 0x06, 0x06, 0x06, 0x06, 0x06,
-        0x06, 0x06, 0x06, 0x06, 0x06, 0x06, 0x06, 0x06,
-        // Controller Pak required
-        0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10,
-        0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10,
-        0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10,
-        0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10,
-        0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10,
-        0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10,
-        0x10, 0x10, 0x10, 0x10, 0x10,
-
-        // Last entry.
-        0xFF
-    };
-
-    for (int i = 0; save_types[i] != 0xFF; i++) {
-
-        if (rom_header.metadata.unique_identifier == *(uint16_t *) cart_ids[i]) {
-            return save_types[i];
-        }
-
-    }
-
-    return DB_SAVE_TYPE_NONE; //Nothing matched.
-}
-
-uint8_t rom_db_match_expansion_pak(rom_header_t rom_header) {
-
-    // Space Station Silicon Valley has known issues on NTSC.
-    // We only check for the known working market here.
-    if ( (rom_header.metadata.unique_identifier == *(uint16_t *) "SV") && (rom_header.metadata.destination_market != MARKET_EUROPEAN_BASIC)) {
-        return DB_MEMORY_EXPANSION_FAULTY;
-    }
-
-    static char *cart_ids[] = {
-
-        // See: https://nintendo.fandom.com/wiki/Nintendo_64_Expansion_Pak
-        
-        // Expansion Pak Required
-        "DO", "DP", "ZS", // Donkey Kong, Dino Planet, Majoras Mask
-
-        // Expansion Pak Recommended (games are pretty broken without it)
-         "IJ", "PD", "SQ", // Indiana Jones, Perfect Dark, Starcraft
-
-        // Expansion Pak Enhanced (box art suggest improvements in some form)
-        "3T", "2M", "32", "4W", "9F", "AC", "AM", "AR", "AS", "AY", "BE", "CC", "CE", "CO", "D4", "DT",
-        "DQ", "DZ", "F2", "FL", "GB", "GX", "HT", "HV", "IC", "IS", "JA", "L2", "MD", "MX", "NA", "O7",
-        "Q2", "Q9", "QB", "RC", "RE", "RO", "RU", "RS", "RV", "RW", "SD", "SL", "P3", "T2", "T4", "TF",
-        "TK", "Y2", "TQ", "V8", "VG", "XF", "ZO",
-
-        // Last entry
-        "\0\0"
-
-    };
-    static int exp_types[] = {
-
-        // Expansion Pak Required
-        0x01, 0x01, 0x01,
-
-        // Expansion Pak Recommended
-        0x02, 0x02, 0x02,
-
-        // Expansion Pak Enhanced
-        0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03,
-        0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03,
-        0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03,
-        0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03,
-
-        // Last entry.
-        0xFF
-    };
-
-    for (int i = 0; exp_types[i] != 0xff; i++) {
-
-        if (rom_header.metadata.unique_identifier == *(uint16_t *) cart_ids[i]) {
-            return exp_types[i];
-        }
-
-    }
-
-    return DB_MEMORY_EXPANSION_NONE;
-}

src/menu/rom_database.h

@@ -1,244 +0,0 @@
-/**
- * @file rom_database.h
- * @brief N64 ROM Database.
- * @note Only works with N64 ROM's by checking the first 1024 bytes of the file.
- * @ingroup menu 
- */
-
-#ifndef ROM_DATABASE_H__
-#define ROM_DATABASE_H__
-
-#include <stdint.h>
-
-
-/**
- * @brief ROM database save type enumeration.
- * @note These values are independent of flashcart / OS
- * but by default align to SC64.
-*/
-typedef enum {
-    /** @brief The ROM has no save type. */
-    DB_SAVE_TYPE_NONE =          0x00,
-    /** @brief The ROM uses EEPROM 4K saves. */
-    DB_SAVE_TYPE_EEPROM_4K =     0x01,
-    /** @brief The ROM uses EEPROM 16K saves. */
-    DB_SAVE_TYPE_EEPROM_16K =    0x02,
-    /** @brief The ROM uses SRAM saves. */
-    DB_SAVE_TYPE_SRAM =          0x03,
-    /** @brief The ROM uses SRAM Banked saves. */
-    DB_SAVE_TYPE_SRAM_BANKED =   0x04,
-    /** @brief The ROM uses SRAM 128K saves @note This is not supported by all flashcarts. */
-    DB_SAVE_TYPE_SRAM_128K =     0x05,
-    /** @brief The ROM uses FLASHRAM saves. */
-    DB_SAVE_TYPE_FLASHRAM =      0x06,
-    /** @brief The ROM uses CPAK saves @note This must be handled by user code. */
-    DB_SAVE_TYPE_CPAK =          0x10,
-    /** @brief The ROM uses Disk Drive saves @note This is not supported by all flashcarts. */
-    DB_SAVE_TYPE_DD =            0x20,
-    /** @brief The ROM uses Disk Drive conversion saves @note This must be handled by user code. */
-    DB_SAVE_TYPE_DD_CONVERSION = 0x30,
-    /** @brief The ROM uses a save type that was not recognised. */
-    DB_SAVE_TYPE_INVALID =       0xFF,
- } db_savetype_t;
-
-
-/** @brief ROM system memory requirements enumeration. */
-typedef enum {
-    /** @brief The ROM is happy with 4MB of memory. */
-    DB_MEMORY_EXPANSION_NONE =        0x00,
-    /** @brief The ROM requires 8MB of memory. */
-    DB_MEMORY_EXPANSION_REQUIRED =    0x01,
-    /** @brief The ROM recommends 8MB of memory. */
-    DB_MEMORY_EXPANSION_RECOMMENDED = 0x02,
-    /** @brief The ROM suggests 8MB of memory. */
-    DB_MEMORY_EXPANSION_SUGGESTED =   0x03,
-    /** @brief The ROM is faulty when using 8MB of memory. */
-    DB_MEMORY_EXPANSION_FAULTY =      0x04,
-} rom_memorytype_t;
-
-
-/**
- * @brief ROM homebrew save type enumeration.
- * @note These align to the Krikzz ED64 save types and are generally accepted
- * by all emulators.
- * 
-*/
-typedef enum {
-    /** @brief The ROM has no save type. */
-    HB_SAVE_TYPE_NONE =         0x00,
-    /** @brief The ROM uses EEPROM 4K saves. */
-    HB_SAVE_TYPE_EEPROM_4K =    0x01,
-    /** @brief The ROM uses EEPROM 16K saves. */
-    HB_SAVE_TYPE_EEPROM_16K =   0x02,
-    /** @brief The ROM uses SRAM saves. */
-    HB_SAVE_TYPE_SRAM =         0x03,
-    /** @brief The ROM uses SRAM Banked saves. */
-    HB_SAVE_TYPE_SRAM_BANKED =  0x04,
-    /** @brief The ROM uses FLASHRAM saves. */
-    HB_SAVE_TYPE_FLASHRAM =     0x05,
-    /** @brief The ROM uses SRAM 128K saves @note This is not supported by all flashcarts. */
-    HB_SAVE_TYPE_SRAM_128K =    0x06,
-} homebrew_savetype_t;
-
-/**
- * @brief ROM file endian enumeration.
- * 
- * @note this is a hack used for checking ROM's against expected Big Endian
- * when reading from the file system.
- */
-typedef enum {
-    /** @brief Big Endian ROM */
-    ROM_BIG_ENDIAN =        0x80371240,
-    /** @brief Little Endian ROM */
-    ROM_LITTLE_ENDIAN =     0x40123780,
-    /** @brief Mid Big Endian ROM */
-    ROM_MID_BIG_ENDIAN =    0x37804012,
-    /** @brief Mid Little Endian ROM */
-    ROM_MID_LITTLE_ENDIAN = 0x12408037,
-    /** @brief Big Endian IPL ROM */
-    IPL_BIG_ENDIAN =        0x80270740,
-} rom_endian_type_t;
-
-
-/** @brief ROM media type enumeration. */
-typedef enum {
-    /** @brief Is a stand alone Cartridge program. */
-    N64_CART = 'N',
-    /** @brief Is a stand alone Disk Drive program. */
-    N64_DISK  = 'D',
-    /** @brief Is a Cartridge program that could use an extra Disk Drive program to expand its capabilities. */
-    N64_CART_EXPANDABLE = 'C',
-    /** @brief Is a Disk Drive program that could use an extra Cartridge program to expand its capabilities. */
-    N64_DISK_EXPANDABLE = 'E',
-    /** @brief Is an Aleck64 program. */
-    N64_ALECK64  = 'Z'
-} rom_media_type_t;
-
-/** @brief ROM market region & language type enumeration. */
-typedef enum {
-    /** @brief The ROM is designed for Japanese and "English" languages. */
-    MARKET_JAPANESE_MULTI = 'A', // 1080 Snowboarding JPN is the only ROM that uses this? possibily a mistake, or the fact it also includes American English!.
-    /** @brief The ROM is designed for Brazil (Portuguese) language. */
-    MARKET_BRAZILIAN  = 'B',
-    /** @brief The ROM is designed for Chinese language. */
-    MARKET_CHINESE = 'C',
-    /** @brief The ROM is designed for German language. */
-    MARKET_GERMAN = 'D',
-    /** @brief The ROM is designed for North American "English" language. */
-    MARKET_NORTH_AMERICA  = 'E',
-    /** @brief The ROM is designed for French language. */
-    MARKET_FRENCH = 'F',
-    /** @brief The ROM is designed for a NTSC Gateway 64. */
-    MARKET_GATEWAY64_NTSC = 'G',
-    /** @brief The ROM is designed for Dutch language. */
-    MARKET_DUTCH = 'H',
-    /** @brief The ROM is designed for Italian language. */
-    MARKET_ITALIAN = 'I',
-    /** @brief The ROM is designed for Japanese language. */
-    MARKET_JAPANESE = 'J',
-    /** @brief The ROM is designed for Korean language. */
-    MARKET_KOREAN = 'K',
-    /** @brief The ROM is designed for a PAL Gateway 64. */
-    MARKET_GATEWAY64_PAL = 'L',
-    /** @brief The ROM is designed for Canada region (English and French) language. */
-    MARKET_CANADIAN = 'N',
-    /** @brief The ROM is designed for European market and languages (must at minimum include English). */
-    MARKET_EUROPEAN_BASIC = 'P', // Sometimes used for Australian region ROMs as well.
-    /** @brief The ROM is designed for Spanish language */
-    MARKET_SPANISH = 'S',
-    /** @brief The ROM is designed for Australia (English) language. */
-    MARKET_AUSTRALIAN = 'U',
-    /** @brief The ROM is designed for Scandinavian (Swedish, Norwegian, Finnish, etc.) languages. */
-    MARKET_SCANDINAVIAN = 'W',
-    /** @brief The ROM is designed for an undefined region and TBD language(s). */
-    MARKET_OTHER_X = 'X', // many EU ROM's, Top Gear Rally (Asia) and HSV Racing (AUS) ROM uses this.
-    /** @brief The ROM is designed for a European region and language(s). */
-    MARKET_OTHER_Y = 'Y', // many EU ROM's uses this.
-    /** @brief The ROM is designed for an undefined region and TBD language(s). */
-    MARKET_OTHER_Z = 'Z' // no known ROM's use this.
-} rom_destination_market_t;
-
-
-/**
- * @brief ROM Config Flags Structure
- * @note This information is derived from the ROM header. 
- * @see https://n64brew.dev/wiki/Peripheral_Interface#Domains
- * i.e.
- * 0x00 = PI BSD Domain 1 Release register
- * 0x01 = PI BSD Domain 1 Page Size register
- * 0x02 = PI BSD Domain 1 Pulse Width register
- * 0x03 = PI BSD Domain 1 Latch register
- */
-typedef struct {
-    /* PI BSD Domain 1 Release register value */
-    uint8_t domain1_release;
-    /* PI BSD Domain 1 Page Size register value */
-    uint8_t domain1_page_size;
-    /* PI BSD Domain 1 Pulse Width register value */
-    uint8_t domain1_latency;
-    /* PI BSD Domain 1 Latch register value */
-    uint8_t domain1_pulse_width;
-} rom_config_flags_t;
-
-/**
- * @brief ROM Metadata Structure
- * @note This information is derived from the ROM header. i.e.
- * 0x3B = Media Type
- * 0x3C and 0x3D = Unique Identifier
- * 0x3E = Destination Market
- */
-typedef struct {
-    uint8_t media_type; // rom_media_type_t
-    uint16_t unique_identifier;
-    uint8_t destination_market; // rom_destination_market_t
-    uint8_t version;
-} rom_metadata_t;
-
-/** 
- * @brief ROM Header Structure
- * @note This information is derived from the ROM header. @see https://n64brew.dev/wiki/ROM_Header
- */
-typedef struct {
-    /** @brief The ROM configuration flags @note we currently use this to work out the endian @see rom_endian_type_t. */
-    uint32_t config_flags; // TODO: use rom_config_flags_t
-
-    /** @brief The ROM file clock rate. */
-    uint32_t clock_rate;
-    /** @brief The ROM file boot address. */
-    uint32_t boot_address;
-    /** @brief The ROM file SDK version. */
-    uint32_t sdk_version;
-
-    /** @brief The ROM file checksum. */
-    uint64_t checksum;
-
-    /** @brief The ROM file unknown reserved region at 0x18. for 8 bytes */
-    uint64_t unknown_reserved_1;
-
-    /** @brief The ROM file title */
-    char title[21]; // 20 chars + null char
-
-    /** @brief The ROM file unknown reserved region at 0x34. for 7 bytes */
-    char unknown_reserved_2[7];
-
-    /** @brief The ROM file metadata @see rom_metadata_t. */
-    rom_metadata_t metadata;
-    /** @brief The ROM file release version. */
-
-    char ipl_boot_code[0x0FC0];
-
-} rom_header_t;
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-rom_header_t file_read_rom_header(char *path);
-uint8_t rom_db_match_save_type(rom_header_t rom_header);
-uint8_t rom_db_match_expansion_pak(rom_header_t rom_header);
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif

src/menu/rom_info.c

@@ -0,0 +1,738 @@
+#include <string.h>
+
+#include <fatfs/ff.h>
+
+#include "rom_info.h"
+#include "utils/fs.h"
+
+
+#define SWAP_VARS(x0, x1)       { typeof(x0) tmp = (x0); (x0) = (x1); (x1) = (tmp); }
+
+#define PI_CONFIG_BIG_ENDIAN    (0x80371240)
+#define PI_CONFIG_LITTLE_ENDIAN (0x40123780)
+#define PI_CONFIG_BYTE_SWAPPED  (0x37804012)
+#define PI_CONFIG_64DD_IPL      (0x80270740)
+
+#define CLOCK_RATE_DEFAULT      (0x0000000F)
+
+
+typedef struct  __attribute__((packed)) {
+    uint32_t pi_dom1_config;
+    uint32_t clock_rate;
+    uint32_t boot_address;
+    struct {
+        uint8_t __unused_1[2];
+        uint8_t version;
+        char revision;
+    } libultra;
+    uint64_t check_code;
+    uint8_t __unused_1[8];
+    char title[20];
+    uint8_t __unused_2[7];
+    union {
+        char game_code[4];
+        struct {
+            char category_code;
+            char unique_code[2];
+            char destination_code;
+        };
+    };
+    uint8_t version;
+    uint8_t ipl3[IPL3_LENGTH];
+} rom_header_t;
+
+typedef enum {
+    // Check only game code
+    MATCH_TYPE_ID,
+
+    // Check game code and region
+    MATCH_TYPE_ID_REGION,
+
+    // Check game code, region and version
+    MATCH_TYPE_ID_REGION_VERSION,
+
+    // Check game check code
+    MATCH_TYPE_CHECK_CODE,
+
+    // Check for homebrew header ID
+    MATCH_TYPE_HOMEBREW_HEADER,
+
+    // List end marker
+    MATCH_TYPE_END
+} match_type_t;
+
+typedef enum {
+    // No features supported
+    FEAT_NONE = 0,
+
+    // Controller Pak
+    FEAT_CPAK = (1 << 0),
+
+    // Rumble Pak
+    FEAT_RPAK = (1 << 1),
+
+    // Transfer Pak
+    FEAT_TPAK = (1 << 2),
+
+    // Voice Recognition Unit
+    FEAT_VRU = (1 << 3),
+
+    // Real Time Clock
+    FEAT_RTC = (1 << 4),
+
+    // Expansion Pak (for games that will not work without it inserted into the console)
+    FEAT_EXP_PAK_REQUIRED = (1 << 5),
+
+    // Expansion Pak (for games with game play enhancements)
+    FEAT_EXP_PAK_RECOMMENDED = (1 << 6),
+
+    // Expansion Pak (for games with visual (or other) enhancements)
+    FEAT_EXP_PAK_ENHANCED = (1 << 7),
+
+    // No Expansion Pak (for games "broken" with it inserted into the console)
+    FEAT_EXP_PAK_BROKEN = (1 << 8),
+
+    // 64DD disk to ROM conversion
+    FEAT_64DD_CONVERSION = (1 << 9),
+
+    // Combo ROM + Disk games
+    FEAT_64DD_ENHANCED = (1 << 10),
+} feat_t;
+
+typedef struct {
+    // Which fields to check
+    match_type_t type;
+
+    // Fields to check for matching
+    union {
+        struct {
+            // Game code (with media type and optional region) or unique ID
+            const char *id;
+
+            // Game version
+            uint8_t version;
+        };
+
+        // Game check code
+        uint64_t check_code;
+    } fields;
+
+    // Matched game metadata
+    struct {
+        // Save type (only cartridge save types)
+        save_type_t save;
+
+        // Supported features
+        feat_t feat;
+    } data;
+} match_t;
+
+
+#define MATCH_ID(i, s, f)                       { .type = MATCH_TYPE_ID, .fields = { .id = i }, .data = { .save = s, .feat = f } }
+#define MATCH_ID_REGION(i, s, f)                { .type = MATCH_TYPE_ID_REGION, .fields = { .id = i }, .data = { .save = s, .feat = f } }
+#define MATCH_ID_REGION_VERSION(i, v, s, f)     { .type = MATCH_TYPE_ID_REGION_VERSION, .fields = { .id = i, .version = v }, .data = { .save = s, .feat = f } }
+#define MATCH_CHECK_CODE(c, s, f)               { .type = MATCH_TYPE_CHECK_CODE, .fields = { .check_code = c }, .data = { .save = s, .feat = f } }
+#define MATCH_HOMEBREW_HEADER(i)                { .type = MATCH_TYPE_HOMEBREW_HEADER, .fields = { .id = i }, .data = { .feat = FEAT_NONE } }
+#define MATCH_END                               { .type = MATCH_TYPE_END, .data = { .save = SAVE_TYPE_NONE, .feat = FEAT_NONE } }
+
+
+// List shamelessly stolen from https://github.com/ares-emulator/ares/blob/master/mia/medium/nintendo-64.cpp
+static const match_t database[] = {
+    MATCH_HOMEBREW_HEADER("ED"),                                                                            // Homebrew header (ED)
+
+    MATCH_CHECK_CODE(0x000000004CBC3B56, SAVE_TYPE_SRAM, FEAT_EXP_PAK_REQUIRED | FEAT_64DD_CONVERSION),     // DMTJ 64DD cartridge conversion
+    MATCH_CHECK_CODE(0x0DD4ABABB5A2A91E, SAVE_TYPE_EEPROM_16K, FEAT_EXP_PAK_REQUIRED),                      // DK Retail kiosk demo
+    MATCH_CHECK_CODE(0xEB85EBC9596682AF, SAVE_TYPE_FLASHRAM, FEAT_NONE),                                    // Doubutsu Banchou
+
+    MATCH_ID_REGION_VERSION("NK4J", 0, SAVE_TYPE_SRAM, FEAT_RPAK),                                          // Kirby 64: The Crystal Shards [Hoshi no Kirby 64 (J)]
+    MATCH_ID_REGION_VERSION("NK4J", 1, SAVE_TYPE_SRAM, FEAT_RPAK),                                          // Kirby 64: The Crystal Shards [Hoshi no Kirby 64 (J)]
+    MATCH_ID("NK4", SAVE_TYPE_EEPROM_16K, FEAT_RPAK),                                                       // Kirby 64: The Crystal Shards [Hoshi no Kirby 64 (J)]
+
+    MATCH_ID_REGION_VERSION("NSMJ", 3, SAVE_TYPE_EEPROM_4K, FEAT_RPAK),                                     // Super Mario 64 Shindou Edition
+    MATCH_ID("NSM", SAVE_TYPE_EEPROM_4K, FEAT_NONE),                                                        // Super Mario 64
+
+    MATCH_ID_REGION_VERSION("NWRJ", 2, SAVE_TYPE_EEPROM_4K, FEAT_CPAK | FEAT_RPAK),                         // Wave Race 64 Shindou Edition
+    MATCH_ID("NWR", SAVE_TYPE_EEPROM_4K, FEAT_CPAK),                                                        // Wave Race 64
+
+    MATCH_ID_REGION("N3HJ", SAVE_TYPE_SRAM, FEAT_NONE),                                                     // Ganbare! Nippon! Olympics 2000
+    MATCH_ID("N3H", SAVE_TYPE_NONE, FEAT_CPAK),                                                             // International Track & Field 2000
+
+    MATCH_ID_REGION("ND3J", SAVE_TYPE_EEPROM_16K, FEAT_RPAK),                                               // Akumajou Dracula Mokushiroku (J)
+    MATCH_ID("ND3", SAVE_TYPE_NONE, FEAT_CPAK),                                                             // Castlevania
+
+    MATCH_ID_REGION("ND4J", SAVE_TYPE_EEPROM_16K, FEAT_RPAK),                                               // Akumajou Dracula Mokushiroku Gaiden: Legend of Cornell (J)
+    MATCH_ID("ND4", SAVE_TYPE_NONE, FEAT_CPAK),                                                             // Castlevania - Legacy of Darkness
+
+    MATCH_ID_REGION("NDKJ", SAVE_TYPE_EEPROM_4K, FEAT_NONE),                                                // Dark Rift [Space Dynamites (J)]
+
+    MATCH_ID_REGION("NSVE", SAVE_TYPE_EEPROM_4K, FEAT_RPAK),                                                // Space Station Silicon Valley
+    MATCH_ID("NSV", SAVE_TYPE_EEPROM_4K, FEAT_RPAK | FEAT_EXP_PAK_BROKEN),                                  // Space Station Silicon Valley
+
+    MATCH_ID_REGION("NWTJ", SAVE_TYPE_EEPROM_4K, FEAT_NONE),                                                // Wetrix
+    MATCH_ID("NWT", SAVE_TYPE_NONE, FEAT_CPAK),                                                             // Wetrix
+
+    MATCH_ID("CLB", SAVE_TYPE_EEPROM_4K, FEAT_RPAK | FEAT_64DD_ENHANCED),                                   // Mario Party (NTSC)
+    MATCH_ID("NAB", SAVE_TYPE_EEPROM_4K, FEAT_CPAK | FEAT_RPAK),                                            // Air Boarder 64
+    MATCH_ID("NAD", SAVE_TYPE_EEPROM_4K, FEAT_NONE),                                                        // Worms Armageddon (U)
+    MATCH_ID("NAG", SAVE_TYPE_EEPROM_4K, FEAT_CPAK),                                                        // AeroGauge
+    MATCH_ID("NB6", SAVE_TYPE_EEPROM_4K, FEAT_CPAK | FEAT_TPAK),                                            // Super B-Daman: Battle Phoenix 64
+    MATCH_ID("NBC", SAVE_TYPE_EEPROM_4K, FEAT_CPAK),                                                        // Blast Corps
+    MATCH_ID("NBD", SAVE_TYPE_EEPROM_4K, FEAT_RPAK),                                                        // Bomberman Hero [Mirian Ojo o Sukue! (J)]
+    MATCH_ID("NBH", SAVE_TYPE_EEPROM_4K, FEAT_RPAK),                                                        // Body Harvest
+    MATCH_ID("NBK", SAVE_TYPE_EEPROM_4K, FEAT_RPAK),                                                        // Banjo-Kazooie [Banjo to Kazooie no Daiboken (J)]
+    MATCH_ID("NBM", SAVE_TYPE_EEPROM_4K, FEAT_CPAK),                                                        // Bomberman 64 [Baku Bomberman (J)]
+    MATCH_ID("NBN", SAVE_TYPE_EEPROM_4K, FEAT_CPAK),                                                        // Bakuretsu Muteki Bangaioh
+    MATCH_ID("NBV", SAVE_TYPE_EEPROM_4K, FEAT_CPAK | FEAT_RPAK),                                            // Bomberman 64: The Second Attack! [Baku Bomberman 2 (J)]
+    MATCH_ID("NCG", SAVE_TYPE_EEPROM_4K, FEAT_CPAK | FEAT_RPAK | FEAT_TPAK),                                // Choro Q 64 II - Hacha Mecha Grand Prix Race (J)
+    MATCH_ID("NCH", SAVE_TYPE_EEPROM_4K, FEAT_RPAK),                                                        // Chopper Attack
+    MATCH_ID("NCR", SAVE_TYPE_EEPROM_4K, FEAT_CPAK),                                                        // Penny Racers [Choro Q 64 (J)]
+    MATCH_ID("NCT", SAVE_TYPE_EEPROM_4K, FEAT_RPAK),                                                        // Chameleon Twist
+    MATCH_ID("NCU", SAVE_TYPE_EEPROM_4K, FEAT_CPAK),                                                        // Cruis'n USA
+    MATCH_ID("NCX", SAVE_TYPE_EEPROM_4K, FEAT_NONE),                                                        // Custom Robo
+    MATCH_ID("NDQ", SAVE_TYPE_EEPROM_4K, FEAT_CPAK),                                                        // Disney's Donald Duck - Goin' Quackers [Quack Attack (E)]
+    MATCH_ID("NDR", SAVE_TYPE_EEPROM_4K, FEAT_NONE),                                                        // Doraemon: Nobita to 3tsu no Seireiseki
+    MATCH_ID("NDU", SAVE_TYPE_EEPROM_4K, FEAT_RPAK),                                                        // Duck Dodgers starring Daffy Duck
+    MATCH_ID("NDY", SAVE_TYPE_EEPROM_4K, FEAT_CPAK | FEAT_RPAK),                                            // Diddy Kong Racing
+    MATCH_ID("NEA", SAVE_TYPE_EEPROM_4K, FEAT_NONE),                                                        // PGA European Tour
+    MATCH_ID("NER", SAVE_TYPE_EEPROM_4K, FEAT_RPAK),                                                        // Aero Fighters Assault [Sonic Wings Assault (J)]
+    MATCH_ID("NF2", SAVE_TYPE_EEPROM_4K, FEAT_RPAK),                                                        // F-1 World Grand Prix II
+    MATCH_ID("NFG", SAVE_TYPE_EEPROM_4K, FEAT_CPAK | FEAT_RPAK),                                            // Fighter Destiny 2
+    MATCH_ID("NFH", SAVE_TYPE_EEPROM_4K, FEAT_RPAK),                                                        // In-Fisherman Bass Hunter 64 
+    MATCH_ID("NFW", SAVE_TYPE_EEPROM_4K, FEAT_RPAK),                                                        // F-1 World Grand Prix
+    MATCH_ID("NFX", SAVE_TYPE_EEPROM_4K, FEAT_RPAK),                                                        // Star Fox 64 [Lylat Wars (E)]
+    MATCH_ID("NFY", SAVE_TYPE_EEPROM_4K, FEAT_CPAK | FEAT_RPAK),                                            // Kakutou Denshou: F-Cup Maniax
+    MATCH_ID("NGE", SAVE_TYPE_EEPROM_4K, FEAT_RPAK),                                                        // GoldenEye 007
+    MATCH_ID("NGL", SAVE_TYPE_EEPROM_4K, FEAT_CPAK | FEAT_RPAK),                                            // Getter Love!!
+    MATCH_ID("NGU", SAVE_TYPE_EEPROM_4K, FEAT_RPAK),                                                        // Tsumi to Batsu: Hoshi no Keishousha (Sin and Punishment)
+    MATCH_ID("NGV", SAVE_TYPE_EEPROM_4K, FEAT_NONE),                                                        // Glover
+    MATCH_ID("NHA", SAVE_TYPE_EEPROM_4K, FEAT_CPAK),                                                        // Bomberman 64: Arcade Edition (J)
+    MATCH_ID("NHF", SAVE_TYPE_EEPROM_4K, FEAT_NONE),                                                        // 64 Hanafuda: Tenshi no Yakusoku
+    MATCH_ID("NHP", SAVE_TYPE_EEPROM_4K, FEAT_NONE),                                                        // Heiwa Pachinko World 64
+    MATCH_ID("NIC", SAVE_TYPE_EEPROM_4K, FEAT_RPAK),                                                        // Indy Racing 2000
+    MATCH_ID("NIJ", SAVE_TYPE_EEPROM_4K, FEAT_RPAK | FEAT_EXP_PAK_RECOMMENDED),                             // Indiana Jones and the Infernal Machine
+    MATCH_ID("NIR", SAVE_TYPE_EEPROM_4K, FEAT_RPAK),                                                        // Utchan Nanchan no Hono no Challenger: Denryuu Ira Ira Bou
+    MATCH_ID("NJM", SAVE_TYPE_EEPROM_4K, FEAT_NONE),                                                        // Earthworm Jim 3D
+    MATCH_ID("NK2", SAVE_TYPE_EEPROM_4K, FEAT_RPAK),                                                        // Snowboard Kids 2 [Chou Snobow Kids (J)]
+    MATCH_ID("NKA", SAVE_TYPE_EEPROM_4K, FEAT_CPAK | FEAT_RPAK),                                            // Fighters Destiny [Fighting Cup (J)]
+    MATCH_ID("NKI", SAVE_TYPE_EEPROM_4K, FEAT_CPAK),                                                        // Killer Instinct Gold
+    MATCH_ID("NKT", SAVE_TYPE_EEPROM_4K, FEAT_CPAK),                                                        // Mario Kart 64
+    MATCH_ID("NLB", SAVE_TYPE_EEPROM_4K, FEAT_RPAK),                                                        // Mario Party (PAL)
+    MATCH_ID("NLL", SAVE_TYPE_EEPROM_4K, FEAT_RPAK),                                                        // Last Legion UX
+    MATCH_ID("NLR", SAVE_TYPE_EEPROM_4K, FEAT_RPAK),                                                        // Lode Runner 3-D
+    MATCH_ID("NMG", SAVE_TYPE_EEPROM_4K, FEAT_CPAK | FEAT_RPAK),                                            // Monaco Grand Prix [Racing Simulation 2 (G)]
+    MATCH_ID("NMI", SAVE_TYPE_EEPROM_4K, FEAT_RPAK),                                                        // Mission: Impossible
+    MATCH_ID("NML", SAVE_TYPE_EEPROM_4K, FEAT_RPAK | FEAT_TPAK),                                            // Mickey's Speedway USA [Mickey no Racing Challenge USA (J)]
+    MATCH_ID("NMO", SAVE_TYPE_EEPROM_4K, FEAT_NONE),                                                        // Monopoly
+    MATCH_ID("NMR", SAVE_TYPE_EEPROM_4K, FEAT_CPAK | FEAT_RPAK),                                            // Multi-Racing Championship
+    MATCH_ID("NMS", SAVE_TYPE_EEPROM_4K, FEAT_CPAK),                                                        // Morita Shougi 64
+    MATCH_ID("NMU", SAVE_TYPE_EEPROM_4K, FEAT_CPAK | FEAT_RPAK),                                            // Big Mountain 2000
+    MATCH_ID("NMW", SAVE_TYPE_EEPROM_4K, FEAT_RPAK),                                                        // Mario Party 2
+    MATCH_ID("NMZ", SAVE_TYPE_EEPROM_4K, FEAT_NONE),                                                        // Zool - Majou Tsukai Densetsu (J)
+    MATCH_ID("NN6", SAVE_TYPE_EEPROM_4K, FEAT_NONE),                                                        // Dr. Mario 64
+    MATCH_ID("NNA", SAVE_TYPE_EEPROM_4K, FEAT_RPAK),                                                        // Star Wars Episode I: Battle for Naboo
+    MATCH_ID("NOS", SAVE_TYPE_EEPROM_4K, FEAT_CPAK | FEAT_RPAK),                                            // 64 Oozumou
+    MATCH_ID("NP2", SAVE_TYPE_EEPROM_4K, FEAT_CPAK | FEAT_RPAK),                                            // Chou Kuukan Night Pro Yakyuu King 2 (J)
+    MATCH_ID("NPG", SAVE_TYPE_EEPROM_4K, FEAT_RPAK | FEAT_VRU),                                             // Hey You, Pikachu! [Pikachu Genki Dechu (J)]
+    MATCH_ID("NPT", SAVE_TYPE_EEPROM_4K, FEAT_RPAK | FEAT_TPAK),                                            // Puyo Puyon Party
+    MATCH_ID("NPW", SAVE_TYPE_EEPROM_4K, FEAT_NONE),                                                        // Pilotwings 64
+    MATCH_ID("NPY", SAVE_TYPE_EEPROM_4K, FEAT_RPAK),                                                        // Puyo Puyo Sun 64
+    MATCH_ID("NRA", SAVE_TYPE_EEPROM_4K, FEAT_CPAK | FEAT_RPAK),                                            // Rally '99 (J)
+    MATCH_ID("NRC", SAVE_TYPE_EEPROM_4K, FEAT_RPAK),                                                        // Top Gear Overdrive
+    MATCH_ID("NRS", SAVE_TYPE_EEPROM_4K, FEAT_RPAK),                                                        // Star Wars: Rogue Squadron [Shutsugeki! Rogue Chuutai (J)]
+    MATCH_ID("NS3", SAVE_TYPE_EEPROM_4K, FEAT_CPAK),                                                        // AI Shougi 3
+    MATCH_ID("NS6", SAVE_TYPE_EEPROM_4K, FEAT_RPAK),                                                        // Star Soldier: Vanishing Earth
+    MATCH_ID("NSA", SAVE_TYPE_EEPROM_4K, FEAT_RPAK),                                                        // Sonic Wings Assault (J)
+    MATCH_ID("NSC", SAVE_TYPE_EEPROM_4K, FEAT_NONE),                                                        // Starshot: Space Circus Fever
+    MATCH_ID("NSN", SAVE_TYPE_EEPROM_4K, FEAT_CPAK | FEAT_RPAK),                                            // Snow Speeder (J)
+    MATCH_ID("NSS", SAVE_TYPE_EEPROM_4K, FEAT_RPAK),                                                        // Super Robot Spirits
+    MATCH_ID("NSU", SAVE_TYPE_EEPROM_4K, FEAT_RPAK),                                                        // Rocket: Robot on Wheels
+    MATCH_ID("NSW", SAVE_TYPE_EEPROM_4K, FEAT_NONE),                                                        // Star Wars: Shadows of the Empire [Teikoku no Kage (J)]
+    MATCH_ID("NT6", SAVE_TYPE_EEPROM_4K, FEAT_NONE),                                                        // Tetris 64
+    MATCH_ID("NTB", SAVE_TYPE_EEPROM_4K, FEAT_RPAK),                                                        // Transformers: Beast Wars Metals 64 (J)
+    MATCH_ID("NTC", SAVE_TYPE_EEPROM_4K, FEAT_RPAK),                                                        // 64 Trump Collection
+    MATCH_ID("NTJ", SAVE_TYPE_EEPROM_4K, FEAT_RPAK),                                                        // Tom & Jerry in Fists of Fury
+    MATCH_ID("NTM", SAVE_TYPE_EEPROM_4K, FEAT_NONE),                                                        // Mischief Makers [Yuke Yuke!! Trouble Makers (J)]
+    MATCH_ID("NTN", SAVE_TYPE_EEPROM_4K, FEAT_NONE),                                                        // All Star Tennis '99
+    MATCH_ID("NTP", SAVE_TYPE_EEPROM_4K, FEAT_NONE),                                                        // Tetrisphere
+    MATCH_ID("NTR", SAVE_TYPE_EEPROM_4K, FEAT_CPAK | FEAT_RPAK),                                            // Top Gear Rally (J + E)
+    MATCH_ID("NTW", SAVE_TYPE_EEPROM_4K, FEAT_CPAK),                                                        // 64 de Hakken!! Tamagotchi
+    MATCH_ID("NTX", SAVE_TYPE_EEPROM_4K, FEAT_RPAK),                                                        // Taz Express
+    MATCH_ID("NVL", SAVE_TYPE_EEPROM_4K, FEAT_RPAK),                                                        // V-Rally Edition '99
+    MATCH_ID("NVY", SAVE_TYPE_EEPROM_4K, FEAT_RPAK),                                                        // V-Rally Edition '99 (J)
+    MATCH_ID("NWC", SAVE_TYPE_EEPROM_4K, FEAT_RPAK),                                                        // Wild Choppers
+    MATCH_ID("NWQ", SAVE_TYPE_EEPROM_4K, FEAT_CPAK | FEAT_RPAK),                                            // Rally Challenge 2000
+    MATCH_ID("NWU", SAVE_TYPE_EEPROM_4K, FEAT_NONE),                                                        // Worms Armageddon (E)
+    MATCH_ID("NXO", SAVE_TYPE_EEPROM_4K, FEAT_RPAK),                                                        // Cruis'n Exotica
+    MATCH_ID("NYK", SAVE_TYPE_EEPROM_4K, FEAT_RPAK),                                                        // Yakouchuu II: Satsujin Kouro
+
+    MATCH_ID("N3D", SAVE_TYPE_EEPROM_16K, FEAT_RPAK),                                                       // Doraemon 3: Nobita no Machi SOS!
+    MATCH_ID("NB7", SAVE_TYPE_EEPROM_16K, FEAT_RPAK),                                                       // Banjo-Tooie [Banjo to Kazooie no Daiboken 2 (J)]
+    MATCH_ID("NCW", SAVE_TYPE_EEPROM_16K, FEAT_RPAK),                                                       // Cruis'n World
+    MATCH_ID("NCZ", SAVE_TYPE_EEPROM_16K, FEAT_RPAK),                                                       // Custom Robo V2
+    MATCH_ID("ND2", SAVE_TYPE_EEPROM_16K, FEAT_RPAK),                                                       // Doraemon 2: Nobita to Hikari no Shinden
+    MATCH_ID("ND6", SAVE_TYPE_EEPROM_16K, FEAT_RPAK | FEAT_VRU),                                            // Densha de Go! 64
+    MATCH_ID("NDO", SAVE_TYPE_EEPROM_16K, FEAT_RPAK | FEAT_EXP_PAK_REQUIRED),                               // Donkey Kong 64
+    MATCH_ID("NEP", SAVE_TYPE_EEPROM_16K, FEAT_RPAK),                                                       // Star Wars Episode I: Racer
+    MATCH_ID("NEV", SAVE_TYPE_EEPROM_16K, FEAT_RPAK),                                                       // Neon Genesis Evangelion
+    MATCH_ID("NFU", SAVE_TYPE_EEPROM_16K, FEAT_RPAK),                                                       // Conker's Bad Fur Day
+    MATCH_ID("NGC", SAVE_TYPE_EEPROM_16K, FEAT_CPAK | FEAT_RPAK),                                           // GT 64: Championship Edition
+    MATCH_ID("NGT", SAVE_TYPE_EEPROM_16K, FEAT_CPAK | FEAT_RPAK),                                           // City Tour GrandPrix - Zen Nihon GT Senshuken
+    MATCH_ID("NIM", SAVE_TYPE_EEPROM_16K, FEAT_NONE),                                                       // Ide Yosuke no Mahjong Juku
+    MATCH_ID("NM8", SAVE_TYPE_EEPROM_16K, FEAT_RPAK | FEAT_TPAK),                                           // Mario Tennis
+    MATCH_ID("NMV", SAVE_TYPE_EEPROM_16K, FEAT_RPAK),                                                       // Mario Party 3
+    MATCH_ID("NMX", SAVE_TYPE_EEPROM_16K, FEAT_CPAK | FEAT_RPAK),                                           // Excitebike 64
+    MATCH_ID("NNB", SAVE_TYPE_EEPROM_16K, FEAT_CPAK | FEAT_RPAK),                                           // Kobe Bryant in NBA Courtside
+    MATCH_ID("NPD", SAVE_TYPE_EEPROM_16K, FEAT_CPAK | FEAT_RPAK | FEAT_TPAK | FEAT_EXP_PAK_RECOMMENDED),    // Perfect Dark
+    MATCH_ID("NPP", SAVE_TYPE_EEPROM_16K, FEAT_CPAK),                                                       // Parlor! Pro 64: Pachinko Jikki Simulation Game
+    MATCH_ID("NR7", SAVE_TYPE_EEPROM_16K, FEAT_TPAK),                                                       // Robot Poncots 64: 7tsu no Umi no Caramel
+    MATCH_ID("NRZ", SAVE_TYPE_EEPROM_16K, FEAT_RPAK),                                                       // Ridge Racer 64
+    MATCH_ID("NUB", SAVE_TYPE_EEPROM_16K, FEAT_CPAK | FEAT_TPAK),                                           // PD Ultraman Battle Collection 64
+    MATCH_ID("NYS", SAVE_TYPE_EEPROM_16K, FEAT_RPAK),                                                       // Yoshi's Story
+
+    MATCH_ID("CFZ", SAVE_TYPE_SRAM, FEAT_RPAK | FEAT_64DD_ENHANCED),                                        // F-Zero X (J)
+    MATCH_ID("CPS", SAVE_TYPE_SRAM, FEAT_TPAK | FEAT_64DD_ENHANCED),                                        // Pocket Monsters Stadium (J)
+    MATCH_ID("CZL", SAVE_TYPE_SRAM, FEAT_RPAK | FEAT_64DD_ENHANCED),                                        // Legend of Zelda: Ocarina of Time [Zelda no Densetsu - Toki no Ocarina (J)]
+    MATCH_ID("NA2", SAVE_TYPE_SRAM, FEAT_CPAK | FEAT_RPAK),                                                 // Virtual Pro Wrestling 2
+    MATCH_ID("NAL", SAVE_TYPE_SRAM, FEAT_RPAK),                                                             // Super Smash Bros. [Nintendo All-Star! Dairantou Smash Brothers (J)]
+    MATCH_ID("NB5", SAVE_TYPE_SRAM, FEAT_RPAK),                                                             // Biohazard 2 (J)
+    MATCH_ID("NFZ", SAVE_TYPE_SRAM, FEAT_RPAK),                                                             // F-Zero X (U + E)
+    MATCH_ID("NG6", SAVE_TYPE_SRAM, FEAT_RPAK),                                                             // Ganmare Goemon: Dero Dero Douchuu Obake Tenkomori
+    MATCH_ID("NGP", SAVE_TYPE_SRAM, FEAT_CPAK),                                                             // Goemon: Mononoke Sugoroku
+    MATCH_ID("NHY", SAVE_TYPE_SRAM, FEAT_CPAK | FEAT_RPAK),                                                 // Hybrid Heaven (J)
+    MATCH_ID("NIB", SAVE_TYPE_SRAM, FEAT_RPAK),                                                             // Itoi Shigesato no Bass Tsuri No. 1 Kettei Ban!
+    MATCH_ID("NJ5", SAVE_TYPE_SRAM, FEAT_CPAK),                                                             // Jikkyou Powerful Pro Yakyuu 5
+    MATCH_ID("NJG", SAVE_TYPE_SRAM, FEAT_RPAK),                                                             // Jinsei Game 64
+    MATCH_ID("NKG", SAVE_TYPE_SRAM, FEAT_CPAK | FEAT_RPAK),                                                 // Major League Baseball featuring Ken Griffey Jr.
+    MATCH_ID("NMF", SAVE_TYPE_SRAM, FEAT_RPAK | FEAT_TPAK),                                                 // Mario Golf 64
+    MATCH_ID("NOB", SAVE_TYPE_SRAM, FEAT_NONE),                                                             // Ogre Battle 64: Person of Lordly Caliber
+    MATCH_ID("NP4", SAVE_TYPE_SRAM, FEAT_CPAK),                                                             // Jikkyou Powerful Pro Yakyuu 4
+    MATCH_ID("NP6", SAVE_TYPE_SRAM, FEAT_CPAK | FEAT_TPAK),                                                 // Jikkyou Powerful Pro Yakyuu 6
+    MATCH_ID("NPA", SAVE_TYPE_SRAM, FEAT_CPAK | FEAT_TPAK),                                                 // Jikkyou Powerful Pro Yakyuu 2000
+    MATCH_ID("NPE", SAVE_TYPE_SRAM, FEAT_CPAK),                                                             // Jikkyou Powerful Pro Yakyuu Basic Ban 2001
+    MATCH_ID("NPM", SAVE_TYPE_SRAM, FEAT_CPAK),                                                             // Premier Manager 64
+    MATCH_ID("NPS", SAVE_TYPE_SRAM, FEAT_CPAK | FEAT_RPAK),                                                 // Jikkyou J.League 1999: Perfect Striker 2
+    MATCH_ID("NRE", SAVE_TYPE_SRAM, FEAT_RPAK),                                                             // Resident Evil 2
+    MATCH_ID("NRI", SAVE_TYPE_SRAM, FEAT_CPAK),                                                             // New Tetris, The
+    MATCH_ID("NS4", SAVE_TYPE_SRAM, FEAT_CPAK | FEAT_TPAK),                                                 // Super Robot Taisen 64
+    MATCH_ID("NSI", SAVE_TYPE_SRAM, FEAT_CPAK),                                                             // Fushigi no Dungeon: Fuurai no Shiren 2
+    MATCH_ID("NT3", SAVE_TYPE_SRAM, FEAT_CPAK),                                                             // Shin Nihon Pro Wrestling - Toukon Road 2 - The Next Generation (J)
+    MATCH_ID("NTE", SAVE_TYPE_SRAM, FEAT_RPAK),                                                             // 1080 Snowboarding
+    MATCH_ID("NUM", SAVE_TYPE_SRAM, FEAT_RPAK | FEAT_TPAK),                                                 // Nushi Zuri 64: Shiokaze ni Notte
+    MATCH_ID("NUT", SAVE_TYPE_SRAM, FEAT_CPAK | FEAT_RPAK | FEAT_TPAK),                                     // Nushi Zuri 64
+    MATCH_ID("NVB", SAVE_TYPE_SRAM, FEAT_RPAK),                                                             // Bass Rush - ECOGEAR PowerWorm Championship (J)
+    MATCH_ID("NVP", SAVE_TYPE_SRAM, FEAT_CPAK | FEAT_RPAK),                                                 // Virtual Pro Wrestling 64
+    MATCH_ID("NW2", SAVE_TYPE_SRAM, FEAT_RPAK),                                                             // WCW-nWo Revenge
+    MATCH_ID("NWL", SAVE_TYPE_SRAM, FEAT_RPAK),                                                             // Waialae Country Club: True Golf Classics
+    MATCH_ID("NWX", SAVE_TYPE_SRAM, FEAT_CPAK | FEAT_RPAK),                                                 // WWF WrestleMania 2000
+    MATCH_ID("NYW", SAVE_TYPE_SRAM, FEAT_NONE),                                                             // Harvest Moon 64
+    MATCH_ID("NZL", SAVE_TYPE_SRAM, FEAT_RPAK),                                                             // Legend of Zelda: Ocarina of Time (E)
+
+    MATCH_ID("CDZ", SAVE_TYPE_SRAM_BANKED, FEAT_RPAK | FEAT_64DD_ENHANCED),                                 // Dezaemon 3D
+
+    MATCH_ID("CP2", SAVE_TYPE_FLASHRAM, FEAT_TPAK | FEAT_64DD_ENHANCED),                                    // Pocket Monsters Stadium 2 (J)
+    MATCH_ID("NAF", SAVE_TYPE_FLASHRAM, FEAT_CPAK | FEAT_RTC),                                              // Doubutsu no Mori
+    MATCH_ID("NCC", SAVE_TYPE_FLASHRAM, FEAT_RPAK),                                                         // Command & Conquer
+    MATCH_ID("NCK", SAVE_TYPE_FLASHRAM, FEAT_RPAK),                                                         // NBA Courtside 2 featuring Kobe Bryant
+    MATCH_ID("NDA", SAVE_TYPE_FLASHRAM, FEAT_CPAK),                                                         // Derby Stallion 64
+    MATCH_ID("NDP", SAVE_TYPE_FLASHRAM, FEAT_EXP_PAK_REQUIRED),                                             // Dinosaur Planet (Unlicensed)
+    MATCH_ID("NJF", SAVE_TYPE_FLASHRAM, FEAT_RPAK),                                                         // Jet Force Gemini [Star Twins (J)]
+    MATCH_ID("NKJ", SAVE_TYPE_FLASHRAM, FEAT_RPAK),                                                         // Ken Griffey Jr.'s Slugfest
+    MATCH_ID("NM6", SAVE_TYPE_FLASHRAM, FEAT_RPAK),                                                         // Mega Man 64
+    MATCH_ID("NMQ", SAVE_TYPE_FLASHRAM, FEAT_RPAK),                                                         // Paper Mario
+    MATCH_ID("NPF", SAVE_TYPE_FLASHRAM, FEAT_NONE),                                                         // Pokemon Snap [Pocket Monsters Snap (J)]
+    MATCH_ID("NPN", SAVE_TYPE_FLASHRAM, FEAT_NONE),                                                         // Pokemon Puzzle League
+    MATCH_ID("NPO", SAVE_TYPE_FLASHRAM, FEAT_TPAK),                                                         // Pokemon Stadium
+    MATCH_ID("NRH", SAVE_TYPE_FLASHRAM, FEAT_RPAK),                                                         // Rockman Dash - Hagane no Boukenshin (J)
+    MATCH_ID("NSQ", SAVE_TYPE_FLASHRAM, FEAT_RPAK | FEAT_EXP_PAK_RECOMMENDED),                              // StarCraft 64
+    MATCH_ID("NT9", SAVE_TYPE_FLASHRAM, FEAT_NONE),                                                         // Tigger's Honey Hunt
+    MATCH_ID("NW4", SAVE_TYPE_FLASHRAM, FEAT_CPAK | FEAT_RPAK),                                             // WWF No Mercy
+    MATCH_ID("NZS", SAVE_TYPE_FLASHRAM, FEAT_RPAK | FEAT_EXP_PAK_REQUIRED),                                 // Legend of Zelda: Majora's Mask [Zelda no Densetsu - Mujura no Kamen (J)]
+
+    MATCH_ID("NP3", SAVE_TYPE_FLASHRAM_PKST2, FEAT_TPAK),                                                   // Pokemon Stadium 2 [Pocket Monsters Stadium - Kin Gin (J)]
+
+    MATCH_ID("N22", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // Ready 2 Rumble Boxing - Round 2
+    MATCH_ID("N2M", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // Madden Football 2002
+    MATCH_ID("N32", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // Army Men - Sarge's Heroes 2
+    MATCH_ID("N3P", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // Triple Play 2000
+    MATCH_ID("N64", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // Kira to Kaiketsu! 64 Tanteidan
+    MATCH_ID("N7I", SAVE_TYPE_NONE, FEAT_CPAK),                                                             // FIFA Soccer 64 [FIFA 64 (E)]
+    MATCH_ID("N8I", SAVE_TYPE_NONE, FEAT_CPAK),                                                             // FIFA - Road to World Cup 98 [World Cup e no Michi (J)]
+    MATCH_ID("N8M", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // Madden Football 64
+    MATCH_ID("N8W", SAVE_TYPE_NONE, FEAT_CPAK),                                                             // World Cup '98
+    MATCH_ID("N9B", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // NBA Live '99
+    MATCH_ID("N9C", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // Nascar '99
+    MATCH_ID("N9F", SAVE_TYPE_NONE, FEAT_CPAK),                                                             // FIFA 99
+    MATCH_ID("N9H", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // NHL '99
+    MATCH_ID("N9M", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // Madden Football '99
+    MATCH_ID("NAC", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // Army Men - Air Combat
+    MATCH_ID("NAH", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // Asteroids Hyper 64
+    MATCH_ID("NAI", SAVE_TYPE_NONE, FEAT_CPAK),                                                             // Midway's Greatest Arcade Hits Volume 1
+    MATCH_ID("NAM", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // Army Men - Sarge's Heroes
+    MATCH_ID("NAR", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // Armorines - Project S.W.A.R.M.
+    MATCH_ID("NAS", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // All-Star Baseball 2001
+    MATCH_ID("NAY", SAVE_TYPE_NONE, FEAT_CPAK),                                                             // Aidyn Chronicles - The First Mage
+    MATCH_ID("NB2", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // NBA In the Zone '99 [NBA Pro '99 (E)]
+    MATCH_ID("NB3", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // Bust-A-Move '99 [Bust-A-Move 3 DX (E)]
+    MATCH_ID("NB4", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // Bass Masters 2000
+    MATCH_ID("NB8", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // Beetle Adventure Racing (J)
+    MATCH_ID("NB9", SAVE_TYPE_NONE, FEAT_CPAK),                                                             // NBA Jam '99
+    MATCH_ID("NBA", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // NBA In the Zone '98 [NBA Pro '98 (E)]
+    MATCH_ID("NBE", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // All-Star Baseball 2000
+    MATCH_ID("NBF", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // Bio F.R.E.A.K.S.
+    MATCH_ID("NBI", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // NFL Blitz 2000
+    MATCH_ID("NBJ", SAVE_TYPE_NONE, FEAT_CPAK),                                                             // Bakushou Jinsei 64 - Mezase! Resort Ou
+    MATCH_ID("NBL", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // Buck Bumble
+    MATCH_ID("NBO", SAVE_TYPE_NONE, FEAT_CPAK),                                                             // Bottom of the 9th
+    MATCH_ID("NBP", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // Blues Brothers 2000
+    MATCH_ID("NBQ", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // Battletanx - Global Assault
+    MATCH_ID("NBR", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // Milo's Astro Lanes
+    MATCH_ID("NBS", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // All-Star Baseball '99
+    MATCH_ID("NBU", SAVE_TYPE_NONE, FEAT_CPAK),                                                             // Bust-A-Move 2 - Arcade Edition
+    MATCH_ID("NBW", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // Super Bowling
+    MATCH_ID("NBX", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // Battletanx
+    MATCH_ID("NBY", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // Bug's Life, A
+    MATCH_ID("NBZ", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // NFL Blitz
+    MATCH_ID("NCB", SAVE_TYPE_NONE, FEAT_RPAK),                                                             // Charlie Blast's Territory
+    MATCH_ID("NCD", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // Carmageddon 64
+    MATCH_ID("NCE", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // Nuclear Strike 64
+    MATCH_ID("NCL", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // California Speed
+    MATCH_ID("NCO", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // Jeremy McGrath Supercross 2000
+    MATCH_ID("NCS", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // S.C.A.R.S.
+    MATCH_ID("NDC", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // SD Hiryuu no Ken Densetsu (J)
+    MATCH_ID("NDE", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // Destruction Derby 64
+    MATCH_ID("NDF", SAVE_TYPE_NONE, FEAT_RPAK),                                                             // Dance Dance Revolution - Disney Dancing Museum
+    MATCH_ID("NDH", SAVE_TYPE_NONE, FEAT_CPAK),                                                             // Duel Heroes
+    MATCH_ID("NDM", SAVE_TYPE_NONE, FEAT_CPAK),                                                             // Doom 64
+    MATCH_ID("NDN", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // Duke Nukem 64
+    MATCH_ID("NDQ", SAVE_TYPE_NONE, FEAT_CPAK),                                                             // Disney's Donald Duck - Goin' Quackers [Quack Attack (E)]
+    MATCH_ID("NDS", SAVE_TYPE_NONE, FEAT_CPAK),                                                             // J.League Dynamite Soccer 64
+    MATCH_ID("NDT", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // South Park
+    MATCH_ID("NDW", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // Daikatana, John Romero's
+    MATCH_ID("NDZ", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // Duke Nukem - Zero Hour
+    MATCH_ID("NEG", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // Extreme-G
+    MATCH_ID("NET", SAVE_TYPE_NONE, FEAT_CPAK),                                                             // Quest 64 [Eltale Monsters (J) Holy Magic Century (E)]
+    MATCH_ID("NF9", SAVE_TYPE_NONE, FEAT_CPAK),                                                             // Fox Sports College Hoops '99
+    MATCH_ID("NFB", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // NFL Blitz 2001
+    MATCH_ID("NFD", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // Flying Dragon
+    MATCH_ID("NFF", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // Fighting Force 64
+    MATCH_ID("NFL", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // Madden Football 2001
+    MATCH_ID("NFO", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // Forsaken 64
+    MATCH_ID("NFQ", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // Razor Freestyle Scooter
+    MATCH_ID("NFR", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // F-1 Racing Championship
+    MATCH_ID("NFS", SAVE_TYPE_NONE, FEAT_CPAK),                                                             // Famista 64
+    MATCH_ID("NG2", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // Extreme-G XG2
+    MATCH_ID("NG5", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // Ganbare Goemon - Neo Momoyama Bakufu no Odori [Mystical Ninja Starring Goemon]
+    MATCH_ID("NGA", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // Deadly Arts [G.A.S.P!! Fighter's NEXTream (E-J)]
+    MATCH_ID("NGB", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // Top Gear Hyper Bike
+    MATCH_ID("NGD", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // Gauntlet Legends (J)
+    MATCH_ID("NGM", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // Goemon's Great Adventure [Mystical Ninja 2 Starring Goemon]
+    MATCH_ID("NGN", SAVE_TYPE_NONE, FEAT_CPAK),                                                             // Golden Nugget 64
+    MATCH_ID("NGR", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // Top Gear Rally (U)
+    MATCH_ID("NGS", SAVE_TYPE_NONE, FEAT_CPAK),                                                             // Jikkyou G1 Stable
+    MATCH_ID("NGX", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // Gauntlet Legends
+    MATCH_ID("NH5", SAVE_TYPE_NONE, FEAT_CPAK),                                                             // Nagano Winter Olympics '98 [Hyper Olympics in Nagano (J)]
+    MATCH_ID("NH9", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // NHL Breakaway '99
+    MATCH_ID("NHC", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // Hercules - The Legendary Journeys
+    MATCH_ID("NHG", SAVE_TYPE_NONE, FEAT_CPAK),                                                             // F-1 Pole Position 64
+    MATCH_ID("NHG", SAVE_TYPE_NONE, FEAT_CPAK),                                                             // Human Grand Prix - New Generation 
+    MATCH_ID("NHK", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // Hiryuu no Ken Twin
+    MATCH_ID("NHL", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // NHL Breakaway '98
+    MATCH_ID("NHM", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // Mia Hamm Soccer 64
+    MATCH_ID("NHN", SAVE_TYPE_NONE, FEAT_CPAK),                                                             // Olympic Hockey Nagano '98
+    MATCH_ID("NHO", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // NHL Blades of Steel '99 [NHL Pro '99 (E)]
+    MATCH_ID("NHS", SAVE_TYPE_NONE, FEAT_CPAK),                                                             // Hamster Monogatari 64
+    MATCH_ID("NHT", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // Hydro Thunder
+    MATCH_ID("NHV", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // Hybrid Heaven (U + E)
+    MATCH_ID("NHW", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // Hot Wheels Turbo Racing
+    MATCH_ID("NHX", SAVE_TYPE_NONE, FEAT_CPAK),                                                             // Hexen
+    MATCH_ID("NIS", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // International Superstar Soccer 2000 
+    MATCH_ID("NIV", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // Space Invaders
+    MATCH_ID("NJ2", SAVE_TYPE_NONE, FEAT_CPAK),                                                             // Wonder Project J2 - Koruro no Mori no Jozet (J)
+    MATCH_ID("NJ3", SAVE_TYPE_NONE, FEAT_CPAK),                                                             // Jikkyou World Soccer 3
+    MATCH_ID("NJA", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // NBA Jam 2000
+    MATCH_ID("NJE", SAVE_TYPE_NONE, FEAT_CPAK),                                                             // J.League Eleven Beat 1997
+    MATCH_ID("NJL", SAVE_TYPE_NONE, FEAT_CPAK),                                                             // J.League Live 64
+    MATCH_ID("NJP", SAVE_TYPE_NONE, FEAT_CPAK),                                                             // International Superstar Soccer 64 [Jikkyo J-League Perfect Striker (J)]
+    MATCH_ID("NJQ", SAVE_TYPE_NONE, FEAT_RPAK),                                                             // Batman Beyond - Return of the Joker [Batman of the Future - Return of the Joker (E)]
+    MATCH_ID("NKE", SAVE_TYPE_NONE, FEAT_RPAK),                                                             // Knife Edge - Nose Gunner
+    MATCH_ID("NKK", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // Knockout Kings 2000
+    MATCH_ID("NKM", SAVE_TYPE_NONE, FEAT_CPAK),                                                             // Pro Mahjong Kiwame 64 (J)
+    MATCH_ID("NKR", SAVE_TYPE_NONE, FEAT_CPAK),                                                             // Rakuga Kids (E)
+    MATCH_ID("NL2", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // Top Gear Rally 2
+    MATCH_ID("NLC", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // Automobili Lamborghini [Super Speed Race 64 (J)]
+    MATCH_ID("NLG", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // LEGO Racers
+    MATCH_ID("NM3", SAVE_TYPE_NONE, FEAT_RPAK),                                                             // Monster Truck Madness 64
+    MATCH_ID("NM4", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // Mortal Kombat 4
+    MATCH_ID("NM9", SAVE_TYPE_NONE, FEAT_CPAK),                                                             // Harukanaru Augusta Masters 98
+    MATCH_ID("NMA", SAVE_TYPE_NONE, FEAT_CPAK),                                                             // Jangou Simulation Mahjong Do 64
+    MATCH_ID("NMB", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // Mike Piazza's Strike Zone
+    MATCH_ID("NMD", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // Madden Football 2000
+    MATCH_ID("NMJ", SAVE_TYPE_NONE, FEAT_CPAK),                                                             // Mahjong 64
+    MATCH_ID("NMM", SAVE_TYPE_NONE, FEAT_CPAK),                                                             // Mahjong Master
+    MATCH_ID("NMT", SAVE_TYPE_NONE, FEAT_RPAK),                                                             // Magical Tetris Challenge
+    MATCH_ID("NMY", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // Mortal Kombat Mythologies - Sub-Zero
+    MATCH_ID("NN2", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // Nascar 2000
+    MATCH_ID("NNC", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // Nightmare Creatures
+    MATCH_ID("NNL", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // NBA Live 2000
+    MATCH_ID("NNM", SAVE_TYPE_NONE, FEAT_CPAK),                                                             // Namco Museum 64
+    MATCH_ID("NNR", SAVE_TYPE_NONE, FEAT_CPAK),                                                             // Pro Mahjong Tsuwamono 64 - Jansou Battle ni Chousen (J)
+    MATCH_ID("NNS", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // Beetle Adventure Racing
+    MATCH_ID("NO7", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // The World Is Not Enough
+    MATCH_ID("NOF", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // Offroad Challenge
+    MATCH_ID("NOH", SAVE_TYPE_NONE, FEAT_RPAK | FEAT_TPAK),                                                 // Transformers Beast Wars - Transmetals
+    MATCH_ID("NOM", SAVE_TYPE_NONE, FEAT_CPAK),                                                             // Onegai Monsters
+    MATCH_ID("NOW", SAVE_TYPE_NONE, FEAT_CPAK),                                                             // Brunswick Circuit Pro Bowling
+    MATCH_ID("NP9", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // Ms. Pac-Man - Maze Madness
+    MATCH_ID("NPB", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // Puzzle Bobble 64 (J)
+    MATCH_ID("NPC", SAVE_TYPE_NONE, FEAT_CPAK),                                                             // Pachinko 365 Nichi (J)
+    MATCH_ID("NPK", SAVE_TYPE_NONE, FEAT_CPAK),                                                             // Chou Kuukan Night Pro Yakyuu King (J)
+    MATCH_ID("NPL", SAVE_TYPE_NONE, FEAT_CPAK),                                                             // Power League 64 (J)
+    MATCH_ID("NPR", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // South Park Rally
+    MATCH_ID("NPU", SAVE_TYPE_NONE, FEAT_CPAK),                                                             // Power Rangers - Lightspeed Rescue
+    MATCH_ID("NPX", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // Polaris SnoCross
+    MATCH_ID("NPZ", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // Susume! Taisen Puzzle Dama Toukon! Marumata Chou (J)
+    MATCH_ID("NQ2", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // Quake 2
+    MATCH_ID("NQ8", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // NFL Quarterback Club '98
+    MATCH_ID("NQ9", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // NFL Quarterback Club '99
+    MATCH_ID("NQB", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // NFL Quarterback Club 2000
+    MATCH_ID("NQC", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // NFL Quarterback Club 2001
+    MATCH_ID("NQK", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // Quake 64
+    MATCH_ID("NR2", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // Rush 2 - Extreme Racing USA
+    MATCH_ID("NR3", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // Stunt Racer 64
+    MATCH_ID("NR6", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // Tom Clancy's Rainbow Six
+    MATCH_ID("NRD", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // Ready 2 Rumble Boxing
+    MATCH_ID("NRG", SAVE_TYPE_NONE, FEAT_RPAK),                                                             // Rugrats - Scavenger Hunt [Treasure Hunt (E)]
+    MATCH_ID("NRK", SAVE_TYPE_NONE, FEAT_CPAK),                                                             // Rugrats in Paris - The Movie
+    MATCH_ID("NRO", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // Road Rash 64
+    MATCH_ID("NRP", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // Rampage - World Tour
+    MATCH_ID("NRP", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // Rampage 2 - Universal Tour
+    MATCH_ID("NRR", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // Roadster's Trophy
+    MATCH_ID("NRT", SAVE_TYPE_NONE, FEAT_CPAK),                                                             // Rat Attack
+    MATCH_ID("NRT", SAVE_TYPE_NONE, FEAT_CPAK),                                                             // Robotron 64
+    MATCH_ID("NRU", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // San Francisco Rush 2049
+    MATCH_ID("NRV", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // Re-Volt
+    MATCH_ID("NRW", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // Turok: Rage Wars
+    MATCH_ID("NS2", SAVE_TYPE_NONE, FEAT_CPAK),                                                             // Simcity 2000
+    MATCH_ID("NSB", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // Twisted Edge - Extreme Snowboarding [King Hill 64 - Extreme Snowboarding (J)]
+    MATCH_ID("NSD", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // Shadow Man
+    MATCH_ID("NSF", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // San Francisco Rush - Extreme Racing
+    MATCH_ID("NSG", SAVE_TYPE_NONE, FEAT_CPAK),                                                             // Shadowgate 64 - Trials Of The Four Towers
+    MATCH_ID("NSH", SAVE_TYPE_NONE, FEAT_CPAK),                                                             // Saikyou Habu Shougi (J)
+    MATCH_ID("NSK", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // Snowboard Kids [Snobow Kids (J)]
+    MATCH_ID("NSL", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // Spider-Man
+    MATCH_ID("NSO", SAVE_TYPE_NONE, FEAT_CPAK),                                                             // NBA Showtime - NBA on NBC
+    MATCH_ID("NSP", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // Superman
+    MATCH_ID("NST", SAVE_TYPE_NONE, FEAT_CPAK),                                                             // Eikou no Saint Andrews
+    MATCH_ID("NSX", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // Supercross 2000
+    MATCH_ID("NSY", SAVE_TYPE_NONE, FEAT_CPAK),                                                             // Scooby-Doo! - Classic Creep Capers
+    MATCH_ID("NSZ", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // NFL Blitz - Special Edition
+    MATCH_ID("NT2", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // Turok 2 - Seeds of Evil [Violence Killer - Turok New Generation (J)]
+    MATCH_ID("NT3", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // Tony Hawk's Pro Skater 3
+    MATCH_ID("NT4", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // CyberTiger
+    MATCH_ID("NTA", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // Disney's Tarzan
+    MATCH_ID("NTF", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // Tony Hawk's Pro Skater
+    MATCH_ID("NTH", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // Toy Story 2 - Buzz Lightyear to the Rescue!
+    MATCH_ID("NTI", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // WWF: Attitude
+    MATCH_ID("NTK", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // Turok 3 - Shadow of Oblivion
+    MATCH_ID("NTO", SAVE_TYPE_NONE, FEAT_CPAK),                                                             // Shin Nihon Pro Wrestling - Toukon Road - Brave Spirits (J)
+    MATCH_ID("NTQ", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // Tony Hawk's Pro Skater 2
+    MATCH_ID("NTS", SAVE_TYPE_NONE, FEAT_CPAK),                                                             // Centre Court Tennis [Let's Smash (J)]
+    MATCH_ID("NTT", SAVE_TYPE_NONE, FEAT_CPAK),                                                             // Tonic Trouble
+    MATCH_ID("NTU", SAVE_TYPE_NONE, FEAT_CPAK),                                                             // Turok: Dinosaur Hunter [Turok: Jikuu Senshi (J)]
+    MATCH_ID("NV2", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // Chameleon Twist 2
+    MATCH_ID("NV3", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // Micro Machines 64 Turbo
+    MATCH_ID("NV8", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // Vigilante 8
+    MATCH_ID("NVC", SAVE_TYPE_NONE, FEAT_CPAK),                                                             // Virtual Chess 64
+    MATCH_ID("NVG", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // Vigilante 8 - Second Offense
+    MATCH_ID("NVR", SAVE_TYPE_NONE, FEAT_CPAK),                                                             // Virtual Pool 64
+    MATCH_ID("NW3", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // WCW: Nitro
+    MATCH_ID("NW8", SAVE_TYPE_NONE, FEAT_CPAK),                                                             // Wayne Gretzky's 3D Hockey '98
+    MATCH_ID("NWB", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // Iggy's Reckin' Balls [Iggy-kun no Bura Bura Poyon (J)]
+    MATCH_ID("NWD", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // Winback - Covert Operations
+    MATCH_ID("NWF", SAVE_TYPE_NONE, FEAT_RPAK),                                                             // Wheel of Fortune
+    MATCH_ID("NWG", SAVE_TYPE_NONE, FEAT_CPAK),                                                             // Wayne Gretzky's 3D Hockey
+    MATCH_ID("NWI", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // ECW Hardcore Revolution
+    MATCH_ID("NWK", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // Michael Owens WLS 2000 [World League Soccer 2000 (E) / Telefoot Soccer 2000 (F)]
+    MATCH_ID("NWM", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // WCW: Mayhem
+    MATCH_ID("NWN", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // WCW vs. nWo - World Tour
+    MATCH_ID("NWO", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // World Driver Championship
+    MATCH_ID("NWP", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // Wipeout 64
+    MATCH_ID("NWS", SAVE_TYPE_NONE, FEAT_CPAK),                                                             // International Superstar Soccer '98 [Jikkyo World Soccer - World Cup France '98 (J)]
+    MATCH_ID("NWV", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // WCW: Backstage Assault
+    MATCH_ID("NWW", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // WWF: War Zone
+    MATCH_ID("NWZ", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // NBA In the Zone 2000
+    MATCH_ID("NX2", SAVE_TYPE_NONE, FEAT_CPAK),                                                             // Gex 64 - Enter the Gecko
+    MATCH_ID("NX3", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // Gex 3 - Deep Cover Gecko
+    MATCH_ID("NXF", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // Xena Warrior Princess - The Talisman of Fate
+    MATCH_ID("NXG", SAVE_TYPE_NONE, FEAT_CPAK),                                                             // NBA Hangtime
+    MATCH_ID("NY2", SAVE_TYPE_NONE, FEAT_CPAK),                                                             // Rayman 2 - The Great Escape
+    MATCH_ID("NYP", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // Paperboy
+    MATCH_ID("NYW", SAVE_TYPE_NONE, FEAT_CPAK),                                                             // Bokujou Monogatari 2
+    MATCH_ID("NZO", SAVE_TYPE_NONE, FEAT_CPAK | FEAT_RPAK),                                                 // Battlezone - Rise of the Black Dogs
+
+    MATCH_END,
+};
+
+
+static void fix_rom_header_endianness (rom_header_t *rom_header, rom_info_t *rom_info) {
+    uint8_t *raw = (uint8_t *) (rom_header);
+
+    switch (rom_header->pi_dom1_config) {
+        case PI_CONFIG_LITTLE_ENDIAN:
+            rom_info->endianness = ENDIANNESS_LITTLE;
+            for (int i = 0; i < sizeof(rom_header_t); i += 4) {
+                SWAP_VARS(raw[i + 0], raw[i + 3]);
+                SWAP_VARS(raw[i + 1], raw[i + 2]);
+            }
+            break;
+
+        case PI_CONFIG_BYTE_SWAPPED:
+            rom_info->endianness = ENDIANNESS_BYTE_SWAP;
+            for (int i = 0; i < sizeof(rom_header_t); i += 2) {
+                SWAP_VARS(raw[i + 0], raw[i + 1]);
+            }
+            break;
+
+        default:
+            rom_info->endianness = ENDIANNESS_BIG;
+            break;
+    }
+}
+
+static bool compare_id (const match_t *match, rom_header_t *rom_header) {
+    int characters_to_check = (match->type == MATCH_TYPE_ID) ? 3 : 4;
+
+    for (int i = (characters_to_check - 1); i >= 0; i--) {
+        if (match->fields.id[i] != rom_header->game_code[i]) {
+            return false;
+        }
+    }
+
+    if (match->type == MATCH_TYPE_ID_REGION_VERSION) {
+        if (match->fields.version != rom_header->version) {
+            return false;
+        }
+    }
+
+    return true;
+}
+
+static match_t find_rom_in_database (rom_header_t *rom_header) {
+    const match_t *match;
+
+    for (match = database; match->type != MATCH_TYPE_END; match++) {
+        switch (match->type) {
+            case MATCH_TYPE_ID:
+            case MATCH_TYPE_ID_REGION:
+            case MATCH_TYPE_ID_REGION_VERSION:
+                if (compare_id(match, rom_header)) {
+                    return *match;
+                }
+                break;
+
+            case MATCH_TYPE_CHECK_CODE:
+                if (match->fields.check_code == rom_header->check_code) {
+                    return *match;
+                }
+                break;
+
+            case MATCH_TYPE_HOMEBREW_HEADER:
+                if (strncmp(match->fields.id, rom_header->unique_code, sizeof(rom_header->unique_code)) == 0) {
+                    return *match;
+                }
+                break;
+
+            default:
+                break;
+        }
+    }
+
+    return *match;
+}
+
+static uint32_t fix_boot_address (cic_type_t cic_type, uint32_t boot_address) {
+    switch (cic_type) {
+        case CIC_x103: return (boot_address - 0x100000);
+        case CIC_x106: return (boot_address - 0x200000);
+        default: return boot_address;
+    }
+}
+
+static void extract_rom_info (match_t *match, rom_header_t *rom_header, rom_info_t *rom_info) {
+    rom_info->cic_type = cic_detect(rom_header->ipl3);
+
+    if (match->type == MATCH_TYPE_HOMEBREW_HEADER) {
+        if (rom_header->version & (1 << 0)) {
+            match->data.feat |= FEAT_RTC;
+        }
+        switch ((rom_header->version & 0xF0) >> 4) {
+            case 0: match->data.save = SAVE_TYPE_NONE; break;
+            case 1: match->data.save = SAVE_TYPE_EEPROM_4K; break;
+            case 2: match->data.save = SAVE_TYPE_EEPROM_16K; break;
+            case 3: match->data.save = SAVE_TYPE_SRAM; break;
+            case 4: match->data.save = SAVE_TYPE_SRAM_BANKED; break;
+            case 5: match->data.save = SAVE_TYPE_FLASHRAM; break;
+            case 6: match->data.save = SAVE_TYPE_SRAM_128K; break;
+            default: match->data.save = SAVE_TYPE_NONE; break;
+        }
+    }
+
+    rom_info->clock_rate = (rom_header->clock_rate == CLOCK_RATE_DEFAULT) ? 62.5f : (rom_header->clock_rate & ~(CLOCK_RATE_DEFAULT)) / 1000000.0f;
+    rom_info->boot_address = fix_boot_address(rom_info->cic_type, rom_header->boot_address);
+    rom_info->libultra.version = rom_header->libultra.version;
+    rom_info->libultra.revision = rom_header->libultra.revision;
+    rom_info->check_code = rom_header->check_code;
+    memcpy(rom_info->title, rom_header->title, sizeof(rom_info->title));
+    memcpy(rom_info->game_code, rom_header->game_code, sizeof(rom_info->game_code));
+    rom_info->version = rom_header->version;
+
+    rom_info->save_type = match->data.save;
+
+    rom_info->features.controller_pak = (match->data.feat & FEAT_CPAK);
+    rom_info->features.rumble_pak = (match->data.feat & FEAT_RPAK);
+    rom_info->features.transfer_pak = (match->data.feat & FEAT_TPAK);
+    rom_info->features.voice_recognition_unit = (match->data.feat & FEAT_VRU);
+    rom_info->features.real_time_clock = (match->data.feat & FEAT_RTC);
+    rom_info->features.disk_conversion = (match->data.feat & FEAT_64DD_CONVERSION);
+    rom_info->features.combo_rom_disk_game = (match->data.feat & FEAT_64DD_ENHANCED);
+    if (match->data.feat & FEAT_EXP_PAK_REQUIRED) {
+        rom_info->features.expansion_pak = EXPANSION_PAK_REQUIRED;
+    } else if (match->data.feat & FEAT_EXP_PAK_RECOMMENDED) {
+        rom_info->features.expansion_pak = EXPANSION_PAK_RECOMMENDED;
+    } else if (match->data.feat & FEAT_EXP_PAK_ENHANCED) {
+        rom_info->features.expansion_pak = EXPANSION_PAK_SUGGESTED;
+    } else if (match->data.feat & FEAT_EXP_PAK_BROKEN) {
+        rom_info->features.expansion_pak = EXPANSION_PAK_FAULTY;
+    } else {
+        rom_info->features.expansion_pak = EXPANSION_PAK_NONE;
+    }
+}
+
+
+rom_err_t rom_info_load (char *path, rom_info_t *rom_info) {
+    FIL fil;
+    UINT br;
+    rom_header_t rom_header;
+
+    if (f_open(&fil, strip_sd_prefix(path), FA_READ) != FR_OK) {
+        return ROM_ERR_NO_FILE;
+    }
+    if (f_read(&fil, &rom_header, sizeof(rom_header), &br) != FR_OK) {
+        f_close(&fil);
+        return ROM_ERR_IO;
+    }
+    if (f_close(&fil) != FR_OK) {
+        return ROM_ERR_IO;
+    }
+    if (br != sizeof(rom_header)) {
+        return ROM_ERR_IO;
+    }
+
+    fix_rom_header_endianness(&rom_header, rom_info);
+
+    match_t match = find_rom_in_database(&rom_header);
+
+    extract_rom_info(&match, &rom_header, rom_info);
+
+    return ROM_OK;
+}

src/menu/rom_info.h

@@ -0,0 +1,156 @@
+/**
+ * @file rom_info.h
+ * @brief N64 ROM Database.
+ * @note Only works with N64 ROM's by checking the first 1024 bytes of the file.
+ * @ingroup menu 
+ */
+
+#ifndef ROM_INFO_H__
+#define ROM_INFO_H__
+
+
+#include <stdbool.h>
+#include <stdint.h>
+
+#include "boot/cic.h"
+
+
+typedef enum {
+    ROM_OK,
+    ROM_ERR_IO,
+    ROM_ERR_NO_FILE,
+} rom_err_t;
+
+typedef enum {
+    ENDIANNESS_BIG,
+    ENDIANNESS_LITTLE,
+    ENDIANNESS_BYTE_SWAP,
+} endianness_t;
+
+/** @brief ROM media type enumeration. */
+typedef enum {
+    /** @brief Is a stand alone Cartridge program. */
+    N64_CART = 'N',
+    /** @brief Is a stand alone Disk Drive program. */
+    N64_DISK  = 'D',
+    /** @brief Is a Cartridge program that could use an extra Disk Drive program to expand its capabilities. */
+    N64_CART_EXPANDABLE = 'C',
+    /** @brief Is a Disk Drive program that could use an extra Cartridge program to expand its capabilities. */
+    N64_DISK_EXPANDABLE = 'E',
+    /** @brief Is an Aleck64 program. */
+    N64_ALECK64  = 'Z'
+} category_type_t;
+
+/** @brief ROM market region & language type enumeration. */
+typedef enum {
+    /** @brief The ROM is designed for Japanese and "English" languages. */
+    MARKET_JAPANESE_MULTI = 'A', // 1080 Snowboarding JPN is the only ROM that uses this? possibily a mistake, or the fact it also includes American English!.
+    /** @brief The ROM is designed for Brazil (Portuguese) language. */
+    MARKET_BRAZILIAN  = 'B',
+    /** @brief The ROM is designed for Chinese language. */
+    MARKET_CHINESE = 'C',
+    /** @brief The ROM is designed for German language. */
+    MARKET_GERMAN = 'D',
+    /** @brief The ROM is designed for North American "English" language. */
+    MARKET_NORTH_AMERICA  = 'E',
+    /** @brief The ROM is designed for French language. */
+    MARKET_FRENCH = 'F',
+    /** @brief The ROM is designed for a NTSC Gateway 64. */
+    MARKET_GATEWAY64_NTSC = 'G',
+    /** @brief The ROM is designed for Dutch language. */
+    MARKET_DUTCH = 'H',
+    /** @brief The ROM is designed for Italian language. */
+    MARKET_ITALIAN = 'I',
+    /** @brief The ROM is designed for Japanese language. */
+    MARKET_JAPANESE = 'J',
+    /** @brief The ROM is designed for Korean language. */
+    MARKET_KOREAN = 'K',
+    /** @brief The ROM is designed for a PAL Gateway 64. */
+    MARKET_GATEWAY64_PAL = 'L',
+    /** @brief The ROM is designed for Canada region (English and French) language. */
+    MARKET_CANADIAN = 'N',
+    /** @brief The ROM is designed for European market and languages (must at minimum include English). */
+    MARKET_EUROPEAN_BASIC = 'P', // Sometimes used for Australian region ROMs as well.
+    /** @brief The ROM is designed for Spanish language */
+    MARKET_SPANISH = 'S',
+    /** @brief The ROM is designed for Australia (English) language. */
+    MARKET_AUSTRALIAN = 'U',
+    /** @brief The ROM is designed for Scandinavian (Swedish, Norwegian, Finnish, etc.) languages. */
+    MARKET_SCANDINAVIAN = 'W',
+    /** @brief The ROM is designed for an undefined region and TBD language(s). */
+    MARKET_OTHER_X = 'X', // many EU ROM's, Top Gear Rally (Asia) and HSV Racing (AUS) ROM uses this.
+    /** @brief The ROM is designed for a European region and language(s). */
+    MARKET_OTHER_Y = 'Y', // many EU ROM's uses this.
+    /** @brief The ROM is designed for an undefined region and TBD language(s). */
+    MARKET_OTHER_Z = 'Z' // no known ROM's use this.
+} destination_type_t;
+
+typedef enum {
+    SAVE_TYPE_NONE,
+    SAVE_TYPE_EEPROM_4K,
+    SAVE_TYPE_EEPROM_16K,
+    SAVE_TYPE_SRAM,
+    SAVE_TYPE_SRAM_BANKED,
+    SAVE_TYPE_SRAM_128K,
+    SAVE_TYPE_FLASHRAM,
+    SAVE_TYPE_FLASHRAM_PKST2,
+} save_type_t;
+
+typedef enum {
+    /** @brief The ROM is happy with 4MB of memory. */
+    EXPANSION_PAK_NONE,
+
+    /** @brief The ROM requires 8MB of memory. */
+    EXPANSION_PAK_REQUIRED,
+
+    /** @brief The ROM recommends 8MB of memory. */
+    EXPANSION_PAK_RECOMMENDED,
+
+    /** @brief The ROM suggests 8MB of memory. */
+    EXPANSION_PAK_SUGGESTED,
+
+    /** @brief The ROM is faulty when using 8MB of memory. */
+    EXPANSION_PAK_FAULTY,
+} expansion_pak_t;
+
+typedef struct {
+    endianness_t endianness;
+    float clock_rate;
+    uint32_t boot_address;
+    struct {
+        uint8_t version;
+        char revision;
+    } libultra;
+    uint64_t check_code;
+    char title[20];
+    union {
+        char game_code[4];
+        struct {
+            category_type_t category_code : 8;
+            char unique_code[2];
+            destination_type_t destination_code : 8;
+        };
+    };
+    uint8_t version;
+
+    cic_type_t cic_type;
+
+    save_type_t save_type;
+
+    struct {
+        bool controller_pak;
+        bool rumble_pak;
+        bool transfer_pak;
+        bool voice_recognition_unit;
+        bool real_time_clock;
+        bool disk_conversion;
+        bool combo_rom_disk_game;
+        expansion_pak_t expansion_pak;
+    } features;
+} rom_info_t;
+
+
+rom_err_t rom_info_load (char *path, rom_info_t *rom_info);
+
+
+#endif

src/menu/settings.c

@@ -4,15 +4,20 @@
 #include "settings.h"
 #include "utils/fs.h"
 
-
+#ifndef SETTINGS_FILE_PATH
-#define SETTINGS_FILE_PATH  "sd:/config.ini"
+#define SETTINGS_FILE_PATH  "sd:/menu/config.ini"
-
+#endif
 
 static settings_t init = {
-    .pal60 = false,
+    .pal60_enabled = false,
-    .show_hidden_files = false,
+    .hidden_files_enabled = false,
     .default_directory = "/",
-    .use_saves_folder = false,
+    .use_saves_folder = true,
+
+    /* Beta feature flags */
+    .bgm_enabled = false,
+    .sound_enabled = false,
+    .rumble_enabled = true,
 };
 
 
@@ -23,22 +28,33 @@ void settings_load (settings_t *settings) {
 
     mini_t *ini = mini_try_load(SETTINGS_FILE_PATH);
 
-    settings->pal60 = mini_get_bool(ini, "menu", "pal60", init.pal60);
+    settings->pal60_enabled = mini_get_bool(ini, "menu", "pal60", init.pal60_enabled); // TODO: consider changing file setting name
-    settings->show_hidden_files = mini_get_bool(ini, "menu", "show_hidden_files", init.show_hidden_files);
+    settings->hidden_files_enabled = mini_get_bool(ini, "menu", "show_hidden_files", init.hidden_files_enabled);
     settings->default_directory = strdup(mini_get_string(ini, "menu", "default_directory", init.default_directory));
     settings->use_saves_folder = mini_get_bool(ini, "menu", "use_saves_folder", init.use_saves_folder);
 
+    /* Beta feature flags, they might not be in the file */
+    settings->bgm_enabled = mini_get_bool(ini, "menu_beta_flag", "bgm_enabled", init.bgm_enabled);
+    settings->sound_enabled = mini_get_bool(ini, "menu_beta_flag", "sound_enabled", init.sound_enabled);
+    settings->rumble_enabled = mini_get_bool(ini, "menu_beta_flag", "rumble_enabled", init.rumble_enabled);
+
+
     mini_free(ini);
 }
 
 void settings_save (settings_t *settings) {
     mini_t *ini = mini_create(SETTINGS_FILE_PATH);
 
-    mini_set_bool(ini, "menu", "pal60", settings->pal60);
+    mini_set_bool(ini, "menu", "pal60", settings->pal60_enabled);
-    mini_set_bool(ini, "menu", "show_hidden_files", settings->show_hidden_files);
+    mini_set_bool(ini, "menu", "show_hidden_files", settings->hidden_files_enabled);
     mini_set_string(ini, "menu", "default_directory", settings->default_directory);
     mini_set_bool(ini, "menu", "use_saves_folder", settings->use_saves_folder);
 
+    /* Beta feature flags, they should not save until production ready! */
+    // mini_set_bool(ini, "menu_beta_flag", "bgm_enabled", init.bgm_enabled);
+    // mini_set_bool(ini, "menu_beta_flag", "sound_enabled", init.sound_enabled);
+    // mini_set_bool(ini, "menu_beta_flag", "rumble_enabled", init.rumble_enabled);
+
     mini_save(ini);
 
     mini_free(ini);

src/menu/settings.h

@@ -10,17 +10,27 @@
 
 /** @brief Settings Structure */
 typedef struct {
-    /** @brief Select 60 Hz refresh rate if running on PAL console */
+    /** @brief Use 60 Hz refresh rate on a PAL console */
-    bool pal60;
+    bool pal60_enabled;
 
     /** @brief Show files marked as hidden in the browser */
-    bool show_hidden_files;
+    bool hidden_files_enabled;
 
     /** @brief Default directory to navigate to when menu loads */
     char *default_directory;
 
     /** @brief Put saves into separate directory */
     bool use_saves_folder;
+
+    /** @brief Enable Background music */
+    bool bgm_enabled;
+
+    /** @brief Enable Sounds */
+    bool sound_enabled;
+
+    /** @brief Enable rumble feedback */
+    bool rumble_enabled;
+
 } settings_t;
 
 

src/menu/sound.c

@@ -35,6 +35,14 @@ void sound_init_mp3_playback (void) {
     sound_reconfigure(mp3player_get_samplerate());
 }
 
+void sound_deinit (void) {
+    if (sound_initialized) {
+        mixer_close();
+        audio_close();
+        sound_initialized = false;
+    }
+}
+
 void sound_poll (void) {
     if (sound_initialized && audio_can_write()) {
         short *audio_buffer = audio_write_begin();
@@ -42,11 +50,3 @@ void sound_poll (void) {
         audio_write_end();
     }
 }
-
-void sound_close (void) {
-    if (sound_initialized) {
-        mixer_close();
-        audio_close();
-        sound_initialized = false;
-    }
-}

src/menu/sound.h

@@ -13,8 +13,8 @@
 
 void sound_init_default (void);
 void sound_init_mp3_playback (void);
+void sound_deinit (void);
 void sound_poll (void);
-void sound_close (void);
 
 
 #endif

src/menu/views/browser.c

@@ -10,6 +10,7 @@
 
 
 static const char *rom_extensions[] = { "z64", "n64", "v64", "rom", NULL };
+static const char *disk_extensions[] = { "ndd", NULL };
 static const char *emulator_extensions[] = { "nes", "sfc", "smc", "gb", "gbc", "sms", "gg", "sg", NULL };
 static const char *save_extensions[] = { "sav", NULL }; // TODO: "eep", "sra", "srm", "fla" could be used if transfered from different flashcarts.
 static const char *image_extensions[] = { "png", NULL };
@@ -29,6 +30,10 @@ static int compare_entry (const void *pa, const void *pb) {
             return -1;
         } else if (b->type == ENTRY_TYPE_ROM) {
             return 1;
+        } else if (a->type == ENTRY_TYPE_DISK) {
+            return -1;
+        } else if (b->type == ENTRY_TYPE_DISK) {
+            return 1;
         } else if (a->type == ENTRY_TYPE_EMULATOR) {
             return -1;
         } else if (b->type == ENTRY_TYPE_EMULATOR) {
@@ -81,7 +86,7 @@ static bool load_directory (menu_t *menu) {
         if (info.fattrib & AM_SYS) {
             continue;
         }
-        if ((info.fattrib & AM_HID) && !menu->settings.show_hidden_files) {
+        if ((info.fattrib & AM_HID) && !menu->settings.hidden_files_enabled) {
             continue;
         }
 
@@ -97,6 +102,8 @@ static bool load_directory (menu_t *menu) {
             entry->type = ENTRY_TYPE_DIR;
         } else if (file_has_extensions(info.fname, rom_extensions)) {
             entry->type = ENTRY_TYPE_ROM;
+        } else if (file_has_extensions(info.fname, disk_extensions)) {
+            entry->type = ENTRY_TYPE_DISK;
         }else if (file_has_extensions(info.fname, emulator_extensions)) {
             entry->type = ENTRY_TYPE_EMULATOR;
         } else if (file_has_extensions(info.fname, save_extensions)) {
@@ -226,7 +233,7 @@ static void process (menu_t *menu) {
         return;
     }
 
-    int scroll_speed = menu->actions.fast ? 10 : 1;
+    int scroll_speed = menu->actions.go_fast ? 10 : 1;
 
     if (menu->browser.entries > 1) {
         if (menu->actions.go_up) {
@@ -254,6 +261,9 @@ static void process (menu_t *menu) {
             case ENTRY_TYPE_ROM:
                 menu->next_mode = MENU_MODE_LOAD_ROM;
                 break;
+            case ENTRY_TYPE_DISK:
+                menu->next_mode = MENU_MODE_LOAD_DISK;
+                break;
             case ENTRY_TYPE_EMULATOR:
                 menu->next_mode = MENU_MODE_LOAD_EMULATOR;
                 break;
@@ -297,6 +307,7 @@ static void draw (menu_t *menu, surface_t *d) {
         switch (menu->browser.entry->type) {
             case ENTRY_TYPE_DIR: action = "A: Enter"; break;
             case ENTRY_TYPE_ROM: action = "A: Load"; break;
+            case ENTRY_TYPE_DISK: action = "A: Load"; break;
             case ENTRY_TYPE_IMAGE: action = "A: Show"; break;
             case ENTRY_TYPE_MUSIC: action = "A: Play"; break;
             default: action = "A: Info"; break;

src/menu/views/error.c

@@ -23,11 +23,18 @@ static void draw (menu_t *menu, surface_t *d) {
 
 static void deinit (menu_t *menu) {
     menu->error_message = NULL;
+    menu->flashcart_err = FLASHCART_OK;
 }
 
 
 void view_error_init (menu_t *menu) {
-    // Nothing to initialize (yet)
+    if (menu->flashcart_err != FLASHCART_OK) {
+        debugf(
+            "Flashcart error [%d]: %s\n",
+            menu->flashcart_err,
+            flashcart_convert_error_message(menu->flashcart_err)
+        );
+    }
 }
 
 void view_error_display (menu_t *menu, surface_t *display) {

src/menu/views/fault.c

@@ -1,38 +1,16 @@
 #include "views.h"
 
 
-static char *convert_error_message (flashcart_error_t error) {
-    switch (error) {
-        case FLASHCART_OK:
-            return "No error";
-        case FLASHCART_ERROR_NOT_DETECTED:
-            return "No flashcart hardware was detected";
-        case FLASHCART_ERROR_OUTDATED:
-            return "Outdated flashcart firmware";
-        case FLASHCART_ERROR_SD_CARD:
-            return "Error during SD card initialization";
-        case FLASHCART_ERROR_ARGS:
-            return "Invalid argument passed to flashcart function";
-        case FLASHCART_ERROR_LOAD:
-            return "Error during loading data into flashcart";
-        case FLASHCART_ERROR_INT:
-            return "Internal flashcart error";
-        default:
-            return "Unknown flashcart error";
-    }
-}
-
-
 static void draw (menu_t *menu, surface_t *d) {
     rdpq_attach(d, NULL);
 
     rdpq_clear(RGBA32(0x7F, 0x00, 0x00, 0xFF));
 
     const char *firmware_message = (
-        "Minimum supported versions:\n"
+        "Supported firmware versions:\n"
-        "EverDrive-64: ?\n"
+        "64drive: 2.05+\n"
-        "64drive: 2.05\n"
+        "EverDrive-64: ???+\n"
-        "SC64: 2.16.0"
+        "SummerCart64: 2.17.0+"
     );
 
     component_messagebox_draw(
@@ -41,8 +19,8 @@ static void draw (menu_t *menu, surface_t *d) {
         "%s\n"
         "\n"
         "%s",
-        convert_error_message(menu->flashcart_error),
+        flashcart_convert_error_message(menu->flashcart_err),
-        menu->flashcart_error == FLASHCART_ERROR_OUTDATED ? firmware_message : ""
+        (menu->flashcart_err == FLASHCART_ERR_OUTDATED) ? firmware_message : ""
     );
 
     rdpq_detach_show();

src/menu/views/load_disk.c

@@ -0,0 +1,160 @@
+#include "../cart_load.h"
+#include "../disk_info.h"
+#include "boot/boot.h"
+#include "views.h"
+
+
+static bool load_pending;
+static bool load_rom;
+
+
+static char *convert_error_message (disk_err_t err) {
+    switch (err) {
+        case DISK_ERR_IO: return "I/O error during loading 64DD disk information";
+        case DISK_ERR_NO_FILE: return "Couldn't open 64DD disk file";
+        case DISK_ERR_INVALID: return "Invalid 64DD disk file";
+        default: return "Unknown disk info load error";
+    }
+}
+
+static char *format_disk_region (disk_region_t region) {
+    switch (region) {
+        case DISK_REGION_DEVELOPMENT: return "Development";
+        case DISK_REGION_JAPANESE: return "Japan";
+        case DISK_REGION_USA: return "USA";
+        default: return "Unknown";
+    }
+}
+
+
+static void process (menu_t *menu) {
+    if (menu->actions.enter) {
+        load_pending = true;
+        load_rom = false;
+    } else if (menu->actions.options && menu->load.rom_path) {
+        load_pending = true;
+        load_rom = true;
+    } else if (menu->actions.back) {
+        menu->next_mode = MENU_MODE_BROWSER;
+    }
+}
+
+static void draw (menu_t *menu, surface_t *d) {
+    rdpq_attach(d, NULL);
+
+    component_background_draw();
+
+    if (load_pending) {
+        component_loader_draw(0.0f);
+    } else {
+        component_layout_draw();
+
+        component_main_text_draw(
+            ALIGN_CENTER, VALIGN_TOP,
+            "64DD disk information\n"
+            "\n"
+            "%s",
+            menu->browser.entry->name
+        );
+
+        component_main_text_draw(
+            ALIGN_LEFT, VALIGN_TOP,
+            "\n"
+            "\n"
+            "\n"
+            "\n"
+            " Region: %s\n"
+            " Unique ID: %.4s\n"
+            " Version: %hhu\n"
+            " Disk type: %d\n"
+            "\n"
+            " %s%s",
+            format_disk_region(menu->load.disk_info.region),
+            menu->load.disk_info.id,
+            menu->load.disk_info.version,
+            menu->load.disk_info.disk_type,
+            menu->load.rom_path ? "ROM: " : "",
+            menu->load.rom_path ? path_last_get(menu->load.rom_path) : ""
+        );
+
+        component_actions_bar_text_draw(
+            ALIGN_LEFT, VALIGN_TOP,
+            "A: Load and run 64DD disk\n"
+            "B: Exit"
+        );
+
+        if (menu->load.rom_path) {
+            component_actions_bar_text_draw(
+                ALIGN_RIGHT, VALIGN_TOP,
+                "R: Load with ROM"
+            );
+        }
+    }
+
+    rdpq_detach_show();
+}
+
+static void draw_progress (float progress) {
+    surface_t *d = (progress >= 1.0f) ? display_get() : display_try_get();
+
+    if (d) {
+        rdpq_attach(d, NULL);
+
+        component_background_draw();
+
+        component_loader_draw(progress);
+
+        rdpq_detach_show();
+    }
+}
+
+static void load (menu_t *menu) {
+    cart_load_err_t err;
+
+    if (menu->load.rom_path && load_rom) {
+        err = cart_load_n64_rom_and_save(menu, draw_progress);
+        if (err != CART_LOAD_OK) {
+            menu_show_error(menu, cart_load_convert_error_message(err));
+            return;
+        }
+    }
+
+    err = cart_load_64dd_ipl_and_disk(menu, draw_progress);
+    if (err != CART_LOAD_OK) {
+        menu_show_error(menu, cart_load_convert_error_message(err));
+        return;
+    }
+
+    menu->next_mode = MENU_MODE_BOOT;
+    menu->boot_params->device_type = load_rom ? BOOT_DEVICE_TYPE_ROM : BOOT_DEVICE_TYPE_64DD;
+    menu->boot_params->tv_type = BOOT_TV_TYPE_PASSTHROUGH;
+    menu->boot_params->detect_cic_seed = true;
+}
+
+
+void view_load_disk_init (menu_t *menu) {
+    if (menu->load.disk_path) {
+        path_free(menu->load.disk_path);
+        menu->load.disk_path = NULL;
+    }
+
+    load_pending = false;
+
+    menu->load.disk_path = path_clone_push(menu->browser.directory, menu->browser.entry->name);
+
+    disk_err_t err = disk_info_load(path_get(menu->load.disk_path), &menu->load.disk_info);
+    if (err != DISK_OK) {
+        menu_show_error(menu, convert_error_message(err));
+    }
+}
+
+void view_load_disk_display (menu_t *menu, surface_t *display) {
+    process(menu);
+
+    draw(menu, display);
+
+    if (load_pending) {
+        load_pending = false;
+        load(menu);
+    }
+}

src/menu/views/load_emulator.c

@@ -75,7 +75,7 @@ static void draw (menu_t *menu, surface_t *d) {
 }
 
 static void draw_progress (float progress) {
-    surface_t *d = display_try_get();
+    surface_t *d = (progress >= 1.0f) ? display_get() : display_try_get();
 
     if (d) {
         rdpq_attach(d, NULL);

src/menu/views/load_rom.c

@@ -1,140 +1,110 @@
 #include "../cart_load.h"
-#include "../rom_database.h"
+#include "../rom_info.h"
 #include "boot/boot.h"
 #include "views.h"
 
 
 static bool load_pending;
-static rom_header_t rom_header;
 static component_boxart_t *boxart;
 
 
-static char *format_rom_endian (rom_endian_type_t endian) {
+static char *convert_error_message (disk_err_t err) {
-    switch (endian) {
+    switch (err) {
-        case ROM_BIG_ENDIAN:
+        case ROM_ERR_IO: return "I/O error during loading ROM information";
-        case IPL_BIG_ENDIAN:
+        case ROM_ERR_NO_FILE: return "Couldn't open ROM file";
-            return "Big (default)";
+        default: return "Unknown ROM info load error";
-        case ROM_LITTLE_ENDIAN:
-            return "Little (unsupported)";
-        case ROM_MID_BIG_ENDIAN:
-            return "Byte swapped";
-        default:
-            return "Unknown";
     }
 }
 
-static char *format_rom_media_type (rom_media_type_t media_type) {
+static const char *format_rom_endianness (endianness_t endianness) {
+    switch (endianness) {
+        case ENDIANNESS_BIG: return "Big (default)";
+        case ENDIANNESS_LITTLE: return "Little (unsupported)";
+        case ENDIANNESS_BYTE_SWAP: return "Byte swapped";
+        default: return "Unknown";
+    }
+}
+
+static const char *format_rom_media_type (category_type_t media_type) {
     switch (media_type) {
-        case N64_CART:
+        case N64_CART: return "Cartridge";
-            return "Cartridge";
+        case N64_DISK: return "Disk";
-        case N64_DISK:
+        case N64_CART_EXPANDABLE: return "Cartridge (Expandable)";
-            return "Disk";
+        case N64_DISK_EXPANDABLE: return "Disk (Expandable)";
-        case N64_CART_EXPANDABLE:
+        case N64_ALECK64: return "Aleck64";
-            return "Cartridge (Expandable)";
+        default: return "Unknown";
-        case N64_DISK_EXPANDABLE:
-            return "Disk (Expandable)";
-        case N64_ALECK64:
-            return "Aleck64";
-        default:
-            return "Unknown";
     }
 }
 
-static char *format_rom_destination_market (rom_destination_market_t market_type) {
+static const char *format_rom_destination_market (destination_type_t market_type) {
     // TODO: These are all assumptions and should be corrected if required.
     // From http://n64devkit.square7.ch/info/submission/pal/01-01.html
     switch (market_type) {
-        case MARKET_JAPANESE_MULTI:
+        case MARKET_JAPANESE_MULTI: return "Japanese & English"; // 1080 Snowboarding JPN
-            return "Japanese & English"; // 1080 Snowboarding JPN
+        case MARKET_BRAZILIAN: return "Brazilian (Portuguese)";
-        case MARKET_BRAZILIAN:
+        case MARKET_CHINESE: return "Chinese";
-            return "Brazilian (Portuguese)";
+        case MARKET_GERMAN: return "German";
-        case MARKET_CHINESE:
+        case MARKET_NORTH_AMERICA: return "American English";
-            return "Chinese";
+        case MARKET_FRENCH: return "French";
-        case MARKET_GERMAN:
+        case MARKET_DUTCH: return "Dutch";
-            return "German";
+        case MARKET_ITALIAN: return "Italian";
-        case MARKET_NORTH_AMERICA:
+        case MARKET_JAPANESE: return "Japanese";
-            return "American English";
+        case MARKET_KOREAN: return "Korean";
-        case MARKET_FRENCH:
+        case MARKET_CANADIAN: return "Canadaian (English & French)";
-            return "French";
+        case MARKET_SPANISH: return "Spanish";
-        case MARKET_DUTCH:
+        case MARKET_AUSTRALIAN: return "Australian (English)";
-            return "Dutch";
+        case MARKET_SCANDINAVIAN: return "Scandinavian";
-        case MARKET_ITALIAN:
+        case MARKET_GATEWAY64_NTSC: return "LodgeNet/Gateway (NTSC)";
-            return "Italian";
+        case MARKET_GATEWAY64_PAL: return "LodgeNet/Gateway (PAL)";
-        case MARKET_JAPANESE:
+        case MARKET_EUROPEAN_BASIC: return "PAL (includes English)"; // Mostly EU but is used on some Australian ROMs
-            return "Japanese";
+        case MARKET_OTHER_X: return "Regional (non specific)"; // FIXME: AUS HSV Racing ROM's and Asia Top Gear Rally use this so not only EUR
-        case MARKET_KOREAN:
+        case MARKET_OTHER_Y: return "European (non specific)";
-            return "Korean";
+        case MARKET_OTHER_Z: return "Regional (unknown)";
-        case MARKET_CANADIAN:
+        default: return "Unknown";
-            return "Canadaian (English & French)";
-        case MARKET_SPANISH:
-            return "Spanish";
-        case MARKET_AUSTRALIAN:
-            return "Australian (English)";
-        case MARKET_SCANDINAVIAN:
-            return "Scandinavian";
-        case MARKET_GATEWAY64_NTSC:
-            return "LodgeNet/Gateway (NTSC)";
-        case MARKET_GATEWAY64_PAL:
-            return "LodgeNet/Gateway (PAL)";
-        case MARKET_EUROPEAN_BASIC:
-            return "PAL (includes English)"; // Mostly EU but is used on some Australian ROMs
-        case MARKET_OTHER_X: // FIXME: AUS HSV Racing ROM's and Asia Top Gear Rally use this so not only EUR
-            return "Regional (non specific)";
-        case MARKET_OTHER_Y:
-            return "European (non specific)";
-        case MARKET_OTHER_Z:
-            return "Regional (unknown)";
-        default:
-            return "Unknown";
     }
 }
 
-static char *format_rom_save_type (db_savetype_t save_type) {
+static const char *format_rom_save_type (save_type_t save_type) {
     switch (save_type) {
-        case DB_SAVE_TYPE_NONE:
+        case SAVE_TYPE_NONE: return "None";
-            return "None";
+        case SAVE_TYPE_EEPROM_4K: return "EEPROM 4K";
-        case DB_SAVE_TYPE_EEPROM_4K:
+        case SAVE_TYPE_EEPROM_16K: return "EEPROM 16K";
-            return "EEPROM 4K";
+        case SAVE_TYPE_SRAM: return "SRAM";
-        case DB_SAVE_TYPE_EEPROM_16K:
+        case SAVE_TYPE_SRAM_BANKED: return "SRAM Banked";
-            return "EEPROM 16K";
+        case SAVE_TYPE_SRAM_128K: return "SRAM 128K";
-        case DB_SAVE_TYPE_SRAM:
+        case SAVE_TYPE_FLASHRAM: return "FlashRAM";
-            return "SRAM";
+        case SAVE_TYPE_FLASHRAM_PKST2: return "FlashRAM (Pokemon Stadium 2)";
-        case DB_SAVE_TYPE_SRAM_BANKED:
+        default: return "Unknown";
-            return "SRAM Banked";
-        case DB_SAVE_TYPE_SRAM_128K:
-            return "SRAM 128K";
-        case DB_SAVE_TYPE_FLASHRAM:
-            return "FlashRAM";
-        case DB_SAVE_TYPE_CPAK:
-            return "Controller Pak";
-        default:
-            return "Unknown";
     }
 }
 
-static char *format_rom_expansion_pak_info (rom_memorytype_t expansion_pak_info) {
+static char *format_rom_expansion_pak_info (expansion_pak_t expansion_pak_info) {
     switch (expansion_pak_info) {
-        case DB_MEMORY_EXPANSION_REQUIRED:
+        case EXPANSION_PAK_REQUIRED: return "Required";
-            return "Required";
+        case EXPANSION_PAK_RECOMMENDED: return "Recommended";
-        case DB_MEMORY_EXPANSION_RECOMMENDED:
+        case EXPANSION_PAK_SUGGESTED: return "Suggested";
-            return "Recommended";
+        case EXPANSION_PAK_FAULTY: return "May require ROM patch";
-        case DB_MEMORY_EXPANSION_SUGGESTED:
+        default: return "Not required";
-            return "Suggested";
-        case DB_MEMORY_EXPANSION_FAULTY:
-            return "May require ROM patch";
-        default:
-            return "Not required";
     }
 }
 
-static float format_rom_clockrate (uint32_t clockrate) {
+static const char *format_cic_type (cic_type_t cic_type) {
-    /* Generally ROMs have a clock rate of 0x0000000F which signifies they used the default 62.5MHz clock. */
+    switch (cic_type) {
-    if (clockrate == 0x0F) {
+        case CIC_5101: return "5101";
-        return 62.5;
+        case CIC_5167: return "5167";
+        case CIC_6101: return "6101";
+        case CIC_7102: return "7102";
+        case CIC_6102_7101: return "6102 / 7101";
+        case CIC_x103: return "6103 / 7103";
+        case CIC_x105: return "6105 / 7105";
+        case CIC_x106: return "6106 / 7106";
+        case CIC_8301: return "8301";
+        case CIC_8302: return "8302";
+        case CIC_8303: return "8303";
+        case CIC_8401: return "8401";
+        case CIC_8501: return "8501";
+        default: return "Unknown";
     }
-
-    /* If it did not, we need to show the different value. */
-    return (float) clockrate / 1000000;
 }
 
 
@@ -170,32 +140,34 @@ static void draw (menu_t *menu, surface_t *d) {
             "\n"
             "\n"
             "\n"
-            " Endian: %s\n"
+            " Endianness: %s\n"
             " Title: %.20s\n"
-            " Media type: %c - %s\n"
+            " Game code: %c%c%c%c\n"
-            " Unique ID: %.2s\n"
+            " Media type: %s\n"
-            " Destination market: %c - %s\n"
+            " Destination market: %s\n"
             " Version: %hhu\n"
-            " Checksum: 0x%016llX\n"
+            " Check code: 0x%016llX\n"
             " Save type: %s\n"
             " Expansion PAK: %s\n"
             "\n"
             " Extra information:\n"
+            "  CIC: %s\n"
             "  Boot address: 0x%08lX\n"
             "  SDK version: %.1f%c\n"
             "  Clock Rate: %.2fMHz\n",
-            format_rom_endian(rom_header.config_flags),
+            format_rom_endianness(menu->load.rom_info.endianness),
-            rom_header.title,
+            menu->load.rom_info.title,
-            rom_header.metadata.media_type, format_rom_media_type(rom_header.metadata.media_type),
+            menu->load.rom_info.game_code[0], menu->load.rom_info.game_code[1], menu->load.rom_info.game_code[2], menu->load.rom_info.game_code[3],
-            (char *) (&rom_header.metadata.unique_identifier),
+            format_rom_media_type(menu->load.rom_info.category_code),
-            rom_header.metadata.destination_market, format_rom_destination_market(rom_header.metadata.destination_market),
+            format_rom_destination_market(menu->load.rom_info.destination_code),
-            rom_header.metadata.version,
+            menu->load.rom_info.version,
-            rom_header.checksum,
+            menu->load.rom_info.check_code,
-            format_rom_save_type(rom_db_match_save_type(rom_header)),
+            format_rom_save_type(menu->load.rom_info.save_type),
-            format_rom_expansion_pak_info(rom_db_match_expansion_pak(rom_header)),
+            format_rom_expansion_pak_info(menu->load.rom_info.features.expansion_pak),
-            rom_header.boot_address,
+            format_cic_type(menu->load.rom_info.cic_type),
-            (float) ((rom_header.sdk_version >> 8) & 0xFF) / 10.0f, (char) (rom_header.sdk_version & 0xFF),
+            menu->load.rom_info.boot_address,
-            format_rom_clockrate(rom_header.clock_rate)
+            (menu->load.rom_info.libultra.version / 10.0f), menu->load.rom_info.libultra.revision,
+            menu->load.rom_info.clock_rate
         );
 
         component_actions_bar_text_draw(
@@ -211,7 +183,7 @@ static void draw (menu_t *menu, surface_t *d) {
 }
 
 static void draw_progress (float progress) {
-    surface_t *d = display_try_get();
+    surface_t *d = (progress >= 1.0f) ? display_get() : display_try_get();
 
     if (d) {
         rdpq_attach(d, NULL);
@@ -225,7 +197,7 @@ static void draw_progress (float progress) {
 }
 
 static void load (menu_t *menu) {
-    cart_load_err_t err = cart_load_n64_rom_and_save(menu, &rom_header, draw_progress);
+    cart_load_err_t err = cart_load_n64_rom_and_save(menu, draw_progress);
 
     if (err != CART_LOAD_OK) {
         menu_show_error(menu, cart_load_convert_error_message(err));
@@ -244,15 +216,21 @@ static void deinit (void) {
 
 
 void view_load_rom_init (menu_t *menu) {
+    if (menu->load.rom_path) {
+        path_free(menu->load.rom_path);
+        menu->load.rom_path = NULL;
+    }
+
     load_pending = false;
 
-    path_t *path = path_clone_push(menu->browser.directory, menu->browser.entry->name);
+    menu->load.rom_path = path_clone_push(menu->browser.directory, menu->browser.entry->name);
 
-    rom_header = file_read_rom_header(path_get(path));
+    rom_err_t err = rom_info_load(path_get(menu->load.rom_path), &menu->load.rom_info);
+    if (err != ROM_OK) {
+        menu_show_error(menu, convert_error_message(err));
+    }
 
-    boxart = component_boxart_init(rom_header.metadata.media_type, rom_header.metadata.unique_identifier);
+    boxart = component_boxart_init(menu->load.rom_info.game_code);
-
-    path_free(path);
 }
 
 void view_load_rom_display (menu_t *menu, surface_t *display) {

src/menu/views/music_player.c

@@ -4,6 +4,7 @@
 
 
 #define SEEK_SECONDS        (5)
+#define SEEK_SECONDS_FAST   (60)
 
 
 static char *convert_error_message (mp3player_err_t err) {
@@ -47,8 +48,8 @@ static void process (menu_t *menu) {
             menu_show_error(menu, convert_error_message(err));
         }
     } else if (menu->actions.go_left || menu->actions.go_right) {
-        int seconds = (menu->actions.go_left ? -SEEK_SECONDS : SEEK_SECONDS);
+        int seconds = menu->actions.go_fast ? SEEK_SECONDS_FAST : SEEK_SECONDS;
-        err = mp3player_seek(seconds);
+        err = mp3player_seek(menu->actions.go_left ? (-seconds) : seconds);
         if (err != MP3PLAYER_OK) {
             menu_show_error(menu, convert_error_message(err));
         }

src/menu/views/startup.c

@@ -2,10 +2,6 @@
 #include "views.h"
 
 
-static void process (menu_t *menu) {
-    menu->next_mode = MENU_MODE_BROWSER;
-}
-
 static void draw (menu_t *menu, surface_t *d) {
     rdpq_attach_clear(d, NULL);
     rdpq_detach_show();
@@ -13,11 +9,9 @@ static void draw (menu_t *menu, surface_t *d) {
 
 
 void view_startup_init (menu_t *menu) {
-    // Nothing to initialize (yet)
+    menu->next_mode = MENU_MODE_BROWSER;
 }
 
 void view_startup_display (menu_t *menu, surface_t *display) {
-    process(menu);
-
     draw(menu, display);
 }

src/menu/views/system_info.c

@@ -3,21 +3,23 @@
 #include "views.h"
 
 
-static int controllers;
+static int joypad[4];
 static int accessory[4];
 
 
-static char *format_accessory (int controller) {
+static char *format_accessory (int joypad) {
-    switch (accessory[controller]) {
+    switch (accessory[joypad]) {
-        case ACCESSORY_RUMBLEPAK:
+        case JOYPAD_ACCESSORY_TYPE_RUMBLE_PAK:
             return "[Rumble Pak is inserted]";
-        case ACCESSORY_MEMPAK:
+        case JOYPAD_ACCESSORY_TYPE_CONTROLLER_PAK:
             return "[Controller Pak is inserted]";
-        case ACCESSORY_VRU:
+        case JOYPAD_ACCESSORY_TYPE_TRANSFER_PAK:
-            return "[VRU is inserted]";
-        case ACCESSORY_TRANSFERPAK:
             return "[Transfer Pak is inserted]";
-        case ACCESSORY_NONE:
+        case JOYPAD_ACCESSORY_TYPE_BIO_SENSOR:
+            return "[BIO Sensor is inserted]";
+        case JOYPAD_ACCESSORY_TYPE_SNAP_STATION:
+            return "[Snap Station is inserted]";
+        case JOYPAD_ACCESSORY_TYPE_NONE:
             return "";
         default:
             return "[unknown accessory inserted]";
@@ -43,8 +45,6 @@ static void draw (menu_t *menu, surface_t *d) {
         "N64 SYSTEM INFORMATION"
     );
 
-    time_t current_time = time(NULL);
-
     component_main_text_draw(
         ALIGN_LEFT, VALIGN_TOP,
         "\n"
@@ -57,12 +57,12 @@ static void draw (menu_t *menu, surface_t *d) {
         "JoyPad 2 is %sconnected %s\n"
         "JoyPad 3 is %sconnected %s\n"
         "JoyPad 4 is %sconnected %s\n",
-        current_time >= 0 ? ctime(&current_time) : "Unknown\n",
+        menu->current_time >= 0 ? ctime(&menu->current_time) : "Unknown\n",
         is_memory_expanded() ? "" : "not ",
-        (controllers & CONTROLLER_1_INSERTED) ? "" : "not ", format_accessory(0),
+        (joypad[0]) ? "" : "not ", format_accessory(0),
-        (controllers & CONTROLLER_2_INSERTED) ? "" : "not ", format_accessory(1),
+        (joypad[1]) ? "" : "not ", format_accessory(1),
-        (controllers & CONTROLLER_3_INSERTED) ? "" : "not ", format_accessory(2),
+        (joypad[2]) ? "" : "not ", format_accessory(2),
-        (controllers & CONTROLLER_4_INSERTED) ? "" : "not ", format_accessory(3)
+        (joypad[3]) ? "" : "not ", format_accessory(3)
     );
 
     component_actions_bar_text_draw(
@@ -76,10 +76,9 @@ static void draw (menu_t *menu, surface_t *d) {
 
 
 void view_system_info_init (menu_t *menu) {
-    controllers = get_controllers_present();
+    JOYPAD_PORT_FOREACH (port) {
-
+        joypad[port] = (joypad_get_style(port) != JOYPAD_STYLE_NONE);
-    for (int i = 0; i < 4; i++) {
+        accessory[port] = joypad_get_accessory_type(port);
-        accessory[i] = identify_accessory(i);
     }
 }
 

src/menu/views/views.h

@@ -41,6 +41,9 @@ void view_credits_display (menu_t *menu, surface_t *display);
 void view_load_rom_init (menu_t *menu);
 void view_load_rom_display (menu_t *menu, surface_t *display);
 
+void view_load_disk_init (menu_t *menu);
+void view_load_disk_display (menu_t *menu, surface_t *display);
+
 void view_load_emulator_init (menu_t *menu);
 void view_load_emulator_display (menu_t *menu, surface_t *display);