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[Core/MD] added support for more RADICA dumps

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ekeeke 2020-07-12 16:40:05 +02:00
parent f0429f1637
commit 17027ad6c4
6 changed files with 125 additions and 20 deletions
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113
core/cart_hw/md_cart.c
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@ -2,7 +2,7 @@
* Genesis Plus
* Mega Drive cartridge hardware support
*
* Copyright (C) 2007-2019 Eke-Eke (Genesis Plus GX)
* Copyright (C) 2007-2020 Eke-Eke (Genesis Plus GX)
*
* Many cartridge protections were initially documented by Haze
* (http://haze.mameworld.info/)
@ -74,7 +74,8 @@ static void mapper_seganet_w(uint32 address, uint32 data);
static void mapper_32k_w(uint32 data);
static void mapper_64k_w(uint32 data);
static void mapper_64k_multi_w(uint32 address);
static uint32 mapper_radica_r(uint32 address);
static uint32 mapper_64k_radica_r(uint32 address);
static uint32 mapper_128k_radica_r(uint32 address);
static void default_time_w(uint32 address, uint32 data);
static void default_regs_w(uint32 address, uint32 data);
static uint32 default_regs_r(uint32 address);
@ -104,11 +105,19 @@ static const md_entry_t rom_database[] =
/* RADICA (Volume 1) (bad dump ?) */
{0x0000,0x2326,0x00,0x00,{{0x00,0x00,0x00,0x00},{0xffffff,0xffffff,0xffffff,0xffffff},{0x000000,0x000000,0x000000,0x000000},0,1,mapper_radica_r,NULL,NULL,NULL}},
{0x0000,0x2326,0x00,0x00,{{0x00,0x00,0x00,0x00},{0xffffff,0xffffff,0xffffff,0xffffff},{0x000000,0x000000,0x000000,0x000000},0,1,mapper_64k_radica_r,m68k_unused_8_w,NULL,NULL}},
/* RADICA (Volume 1) */
{0x24f4,0xfc84,0x00,0x00,{{0x00,0x00,0x00,0x00},{0xffffff,0xffffff,0xffffff,0xffffff},{0x000000,0x000000,0x000000,0x000000},0,0,mapper_radica_r,NULL,NULL,NULL}},
{0x24f4,0xfc84,0x00,0x00,{{0x00,0x00,0x00,0x00},{0xffffff,0xffffff,0xffffff,0xffffff},{0x000000,0x000000,0x000000,0x000000},0,0,mapper_64k_radica_r,m68k_unused_8_w,NULL,NULL}},
/* RADICA (Volume 2) */
{0x104f,0x32e9,0x00,0x00,{{0x00,0x00,0x00,0x00},{0xffffff,0xffffff,0xffffff,0xffffff},{0x000000,0x000000,0x000000,0x000000},0,0,mapper_radica_r,NULL,NULL,NULL}},
{0xd951,0x78d0,0x00,0x00,{{0x00,0x00,0x00,0x00},{0xffffff,0xffffff,0xffffff,0xffffff},{0x000000,0x000000,0x000000,0x000000},0,0,mapper_64k_radica_r,m68k_unused_8_w,NULL,NULL}},
/* RADICA (Volume 3 - Super Sonic Gold edition) */
{0x0000,0x1f25,0x00,0x00,{{0x00,0x00,0x00,0x00},{0xffffff,0xffffff,0xffffff,0xffffff},{0x000000,0x000000,0x000000,0x000000},0,0,mapper_64k_radica_r,m68k_unused_8_w,NULL,NULL}},
/* RADICA (Street Fighter II CE edition) */
{0x1add,0xa838,0x00,0x00,{{0x00,0x00,0x00,0x00},{0xffffff,0xffffff,0xffffff,0xffffff},{0x000000,0x000000,0x000000,0x000000},0,0,mapper_64k_radica_r,m68k_unused_8_w,NULL,NULL}},
/* RADICA (Street Fighter II CE edition) (PAL) */
{0x104f,0x32e9,0x00,0x00,{{0x00,0x00,0x00,0x00},{0xffffff,0xffffff,0xffffff,0xffffff},{0x000000,0x000000,0x000000,0x000000},0,0,mapper_64k_radica_r,m68k_unused_8_w,NULL,NULL}},
/* RADICA (Sensible Soccer Plus edition) (PAL) */
{0x0000,0x1f7f,0x00,0x00,{{0x00,0x00,0x00,0x00},{0xffffff,0xffffff,0xffffff,0xffffff},{0x000000,0x000000,0x000000,0x000000},0,0,mapper_128k_radica_r,m68k_unused_8_w,NULL,NULL}},
/* Tenchi wo Kurau III: Sangokushi Gaiden - Chinese Fighter */
@ -1652,21 +1661,107 @@ static void mapper_64k_multi_w(uint32 address)
/*
Custom ROM Bankswitch used in RADICA cartridges
+++++++++++++++++++++++++++++++++++++++++++++++
Two different boards seem to exist (one with support for 64KB banks mapping and another one supporting 128KB banks + battery-RAM).
Radica Volume 1 requires 64KB banks mapping as the menu is located at a 64KB boundary.
Sensible Soccer Plus edition requires 128KB banks mapping with only VA6-VA2 being used to select bank index (VA1 is ignored).
Sensible Soccer Plus edition also requires 8KB backup RAM to be mapped in higher 2MB range.
Other games support both 64KB or 128KB mapping so it's not clear what exact board they are using but none require SRAM so we use 64KB mapper by default.
Note that Radica Volume 3 uses similar ROM mapping as Sensible Soccer Plus edition so it might be using same 128KB board, without any SRAM chip connected.
*/
static uint32 mapper_radica_r(uint32 address)
static uint32 mapper_64k_radica_r(uint32 address)
{
int i = 0;
address = (address >> 1);
/* 64 x 64k banks */
for (i = 0; i < 64; i++)
/*
Volume 1
--------
000000h-0fffffh: Kid Chameleon : !TIME read16 0xA13000 (00FF103A)
100000h-1fffffh: Dr Robotnik's Mean Bean Machine : !TIME read16 0xA13020 (00FF101E)
200000h-27ffffh: Sonic The Hedgehog : !TIME read16 0xA13040 (00FF101E)
280000h-2fffffh: Golden Axe : !TIME read16 0xA13050 (00FF101E)
300000h-37ffffh: Altered Beast : !TIME read16 0xA13060 (00FF101E)
380000h-39ffffh: Flicky : !TIME read16 0xA13070 (00FF101E)
3a0000h-3effffh: N/A : N/A
3f0000h-3fffffh: Radica Menu (64 KB) : !TIME read16 0xA1307E (00FF1006)
Volume 2
--------
000000h-0fffffh: Sonic The Hedgehog 2 : !TIME read16 0xA13000 (00FF103A)
100000h-1fffffh: The Ooze : !TIME read16 0xA13020 (00FF101E)
200000h-2fffffh: Ecco The Dolphin : !TIME read16 0xA13040 (00FF101E)
300000h-37ffffh: Gain Ground : !TIME read16 0xA13060 (00FF101E)
380000h-3bffffh: Alex Kidd in Enchanted Castle : !TIME read16 0xA13070 (00FF101E)
3c0000h-3dffffh: Columns : !TIME read16 0xA13078 (00FF101E)
3e0000h-3fffffh: Radica Menu (128 KB) : !TIME read16 0xA1307C (00FF1006)
Volume 3 - Super Sonic Gold edition
-----------------------------------
000000h-01ffffh: Radica Menu (128 KB) : N/A
020000h-07ffffh: N/A : N/A
080000h-0fffffh: Sonic The Hedgehog : !TIME read16 0xA13010 (00FF1012)
100000h-1fffffh: Sonic The Hedgehog 2 : !TIME read16 0xA13020 (00FF1012)
200000h-2fffffh: Sonic Spinball : !TIME read16 0xA13040 (00FF1012)
300000h-3fffffh: Dr Robotnik's Mean Bean Machine : !TIME read16 0xA13060 (00FF1012)
Street Fighter 2 CE edition
---------------------------
000000h-2fffffh: Street Fighter 2 CE : !TIME read16 0xA13000 (00FF103A)
300000h-3bffffh: Ghouls'n Ghosts : !TIME read16 0xA13060 (00FF101E)
3c0000h-3dffffh: Radica Menu (128 KB) : !TIME read16 0xA13078 (00FF1006)
3e0000h-3fffffh: N/A : N/A
*/
int index = (address >> 1) & 0x3F;
/* $000000-$3fffff area is mapped to selected banks (OR gates between VA21-VA16 and selected index) */
for (i = 0x00; i < 0x40; i++)
{
m68k.memory_map[i].base = &cart.rom[((address++)& 0x3f)<< 16];
m68k.memory_map[i].base = &cart.rom[(index | i) << 16];
}
return 0xffff;
}
static uint32 mapper_128k_radica_r(uint32 address)
{
int i = 0;
/* 32 x 128k banks */
/*
Sensible Soccer Plus edition
----------------------------
000000h-01ffffh: Radica Menu (128 KB) : N/A
020000h-07ffffh: N/A : N/A
080000h-0fffffh: Sensible Soccer : !TIME read16 0xA13010 (00FF1012)
100000h-1fffffh: Mega-Lo-Mania : !TIME read16 0xA13022 (00FF1012)
200000h-37ffffh: Cannon Fodder : !TIME read16 0xA13042 (00FF1012)
380000h-3fffffh: N/A : N/A
Note: address bit 1 is ignored for bank selection but might be used to enable/disable SRAM mapping ?
*/
int index = (address >> 1) & 0x3E;
/* $000000-$1fffff area is mapped to selected banks (OR gates between VA20-VA17 and selected index) */
for (i = 0x00; i < 0x20; i++)
{
m68k.memory_map[i].base = &cart.rom[(index | i) << 16];
}
/* $200000-$3fffff area is mapped to 8KB SRAM (mirrored) */
for (i = 0x20; i < 0x40; i++)
{
m68k.memory_map[i].base = sram.sram;
m68k.memory_map[i].read8 = sram_read_byte;
m68k.memory_map[i].read16 = sram_read_word;
m68k.memory_map[i].write8 = sram_write_byte;
m68k.memory_map[i].write16 = sram_write_word;
zbank_memory_map[i].read = sram_read_byte;
zbank_memory_map[i].write = sram_write_byte;
}
return 0xffff;
}
/************************************************************
default !TIME signal handler

2
core/cart_hw/md_cart.h
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@ -2,7 +2,7 @@
* Genesis Plus
* Mega Drive cartridge hardware support
*
* Copyright (C) 2007-2019 Eke-Eke (Genesis Plus GX)
* Copyright (C) 2007-2020 Eke-Eke (Genesis Plus GX)
*
* Most cartridge protections were initially documented by Haze
* (http://haze.mameworld.info/)

9
core/cart_hw/sram.c
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@ -2,7 +2,7 @@
* Genesis Plus
* Backup RAM support
*
* Copyright (C) 2007-2019 Eke-Eke (Genesis Plus GX)
* Copyright (C) 2007-2020 Eke-Eke (Genesis Plus GX)
*
* Redistribution and use of this code or any derivative works are permitted
* provided that the following conditions are met:
@ -147,6 +147,13 @@ void sram_init()
sram.start = 0x400001;
sram.end = 0x40ffff;
}
else if ((rominfo.checksum == 0x0000) && (rominfo.realchecksum == 0x1f7f) && (READ_BYTE(cart.rom + 0x80000,0x1b0) == 0x52) && (READ_BYTE(cart.rom + 0x80000,0x1b1) == 0x41))
{
/* Radica - Sensible Soccer Plus edition (use bankswitching) */
sram.on = 1;
sram.start = 0x200001;
sram.end = 0x203fff;
}
else if ((strstr(rominfo.ROMType,"SF") != NULL) && (strstr(rominfo.product,"001") != NULL))
{
/* SF-001 */

2
core/cart_hw/sram.h
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@ -2,7 +2,7 @@
* Genesis Plus
* Backup RAM support
*
* Copyright (C) 2007-2019 Eke-Eke (Genesis Plus GX)
* Copyright (C) 2007-2020 Eke-Eke (Genesis Plus GX)
*
* Redistribution and use of this code or any derivative works are permitted
* provided that the following conditions are met:

9
core/loadrom.c
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@ -3,7 +3,7 @@
* ROM Loading Support
*
* Copyright (C) 1998-2003 Charles Mac Donald (original code)
* Copyright (C) 2007-2018 Eke-Eke (Genesis Plus GX)
* Copyright (C) 2007-2020 Eke-Eke (Genesis Plus GX)
*
* Redistribution and use of this code or any derivative works are permitted
* provided that the following conditions are met:
@ -647,7 +647,9 @@ int load_rom(char *filename)
/* auto-detect byte-swapped dumps */
if (!memcmp((char *)(cart.rom + 0x100),"ESAGM GE ARDVI E", 16) ||
!memcmp((char *)(cart.rom + 0x100),"ESAGG NESESI", 12))
!memcmp((char *)(cart.rom + 0x100),"ESAGG NESESI", 12) ||
!memcmp((char *)(cart.rom + 0x80000 + 0x100),"ESAGM GE ARDVI E", 16) ||
!memcmp((char *)(cart.rom + 0x80000 + 0x100),"ESAGG NESESI", 12))
{
for(i = 0; i < size; i += 2)
{
@ -1076,7 +1078,8 @@ void get_region(char *romheader)
(strstr(rominfo.product,"T-69046-50") != NULL) || /* Back to the Future III (Europe) */
(strstr(rominfo.product,"T-120106-00") != NULL) || /* Brian Lara Cricket (Europe) */
(strstr(rominfo.product,"T-97126 -50") != NULL) || /* Williams Arcade's Greatest Hits (Europe) */
(strstr(rominfo.product,"T-70096 -00") != NULL)) /* Muhammad Ali Heavyweight Boxing (Europe) */
(strstr(rominfo.product,"T-70096 -00") != NULL) || /* Muhammad Ali Heavyweight Boxing (Europe) */
((rominfo.checksum == 0x0000) && (rominfo.realchecksum == 0x1f7f))) /* Radica - Sensible Soccer Plus edition */
{
/* need PAL settings */
region_code = REGION_EUROPE;

2
core/loadrom.h
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@ -3,7 +3,7 @@
* ROM Loading Support
*
* Copyright (C) 1998-2003 Charles Mac Donald (original code)
* Copyright (C) 2007-2018 Eke-Eke (Genesis Plus GX)
* Copyright (C) 2007-2020 Eke-Eke (Genesis Plus GX)
*
* Redistribution and use of this code or any derivative works are permitted
* provided that the following conditions are met: