mirror of
https://github.com/Polprzewodnikowy/SummerCart64.git
synced 2024-11-22 05:59:15 +01:00
[SC64][SW][DOCS] Reduced bootloader binary size / updated readme
This commit is contained in:
Mateusz Faderewski
parent
5b85b0f661
commit
aa82984472
@ -15,11 +15,12 @@
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- Status LED and button for general use
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- 64DD add-on emulation
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- IS-Viewer 64 debug interface
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- Software and firmware update via USB interface
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- N64 bootloader with support for IPL3 registers spoofing and loading menu from SD card
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- Enhanced [UltraCIC_C](https://github.com/jago85/UltraCIC_C) emulation with automatic region switching and programmable seed/checksum values
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- PC app for communicating with flashcart (game/save data upload/download, feature enable control and debug terminal)
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- [UNFLoader](https://github.com/buu342/N64-UNFLoader) support
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- Initial board programming via UART header on board or dedicated JTAG/SWD interfaces
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- Software and firmware update via USB interface
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- 3D printable plastic shell
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---
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@ -1,95 +1,95 @@
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TOOLCHAIN = mips64-elf-
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CC = $(TOOLCHAIN)gcc
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CXX = $(TOOLCHAIN)g++
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OBJCOPY = $(TOOLCHAIN)objcopy
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OBJDUMP = $(TOOLCHAIN)objdump
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SIZE = $(TOOLCHAIN)size
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PYTHON = python3
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FLAGS = -march=vr4300 -mtune=vr4300 $(USER_FLAGS)
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CFLAGS = -Os -Wall -ffunction-sections -fdata-sections -ffreestanding -MMD -MP
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ASFLAGS = -Wa,-I$(N64_INST)/mips64-elf/lib
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LDFLAGS = -lc -nostartfiles -Wl,--gc-sections
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SRC_DIR = src
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ASSET_DIR = assets
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BUILD_DIR = build
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SRC_FILES = \
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startup.S \
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boot.c \
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crc32.c \
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display.c \
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error.c \
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exception.c \
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exception.S \
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font.c \
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init.c \
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interrupt.c \
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io.c \
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ipl2.S \
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main.c \
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menu.c \
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sc64.c \
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syscalls.c \
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test.c \
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version.c \
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fatfs/diskio.c \
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fatfs/ff.c \
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fatfs/ffsystem.c \
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fatfs/ffunicode.c
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ASSET_FILES = \
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sc64_logo_640_240_dimmed.png
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SRCS = $(SRC_FILES) $(ASSET_FILES)
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SRC_OBJS = $(patsubst %,%.o,$(SRC_FILES))
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ASSET_OBJS = $(patsubst %,%.asset.o,$(basename $(ASSET_FILES)))
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OBJS = $(addprefix $(BUILD_DIR)/,$(notdir $(SRC_OBJS) $(ASSET_OBJS)))
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DEPS = $(OBJS:.o=.d)
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VPATH = $(SRC_DIR) $(SRC_DIR)/fatfs $(ASSET_DIR)
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$(@info $(shell mkdir -p ./$(BUILD_DIR) &> /dev/null))
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$(BUILD_DIR)/%.S.o: %.S
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$(CC) -x assembler-with-cpp $(FLAGS) $(ASFLAGS) $(CFLAGS) -c $< -o $@
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$(BUILD_DIR)/%.c.o: %.c
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$(CC) $(FLAGS) $(CFLAGS) -c $< -o $@
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$(BUILD_DIR)/%.asset: $(ASSET_DIR)/%.png
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$(PYTHON) tools/asset_converter.py $< $@
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$(BUILD_DIR)/%.asset.o: $(BUILD_DIR)/%.asset $(ASSET_DIR)/assets.S
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@sed -e "s,@sym@,$*,g" -e "s,@file@,$<," < $(ASSET_DIR)/assets.S | $(CC) -x assembler-with-cpp $(FLAGS) $(ASFLAGS) $(CFLAGS) -c - -o $@
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$(BUILD_DIR)/bootloader.elf: $(OBJS) N64.ld
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$(CXX) $(FLAGS) $(LDFLAGS) -TN64.ld $(OBJS) -o $@
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@$(OBJDUMP) -S $@ > $(BUILD_DIR)/bootloader.lst
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$(BUILD_DIR)/bootloader.bin: $(BUILD_DIR)/bootloader.elf
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@$(OBJCOPY) -O binary $< $@
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@chksum64 $@ > /dev/null
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@$(PYTHON) tools/strip.py $@
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$(BUILD_DIR)/bootloader.hex: $(BUILD_DIR)/bootloader.bin
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@$(OBJCOPY) -I binary -O ihex $< $@
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print_size: $(BUILD_DIR)/bootloader.elf
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@echo 'Size of modules:'
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@$(SIZE) -B -d -t --common $(OBJS)
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@echo 'Size of bootloader:'
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@$(SIZE) -B -d $<
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all: $(BUILD_DIR)/bootloader.hex print_size
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clean:
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@rm -rf ./$(BUILD_DIR)/*
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$(BUILD_DIR)/version.c.o: .FORCE
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.FORCE:
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.PHONY: .FORCE all clean print_size
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-include $(DEPS)
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TOOLCHAIN = mips64-elf-
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CC = $(TOOLCHAIN)gcc
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CXX = $(TOOLCHAIN)g++
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OBJCOPY = $(TOOLCHAIN)objcopy
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OBJDUMP = $(TOOLCHAIN)objdump
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SIZE = $(TOOLCHAIN)size
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PYTHON = python3
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FLAGS = -march=vr4300 -mtune=vr4300 $(USER_FLAGS)
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CFLAGS = -Os -Wall -ffunction-sections -fdata-sections -ffreestanding -MMD -MP
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ASFLAGS = -Wa,-I$(N64_INST)/mips64-elf/lib
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LDFLAGS = -lc -nostartfiles -Wl,--gc-sections
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SRC_DIR = src
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ASSET_DIR = assets
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BUILD_DIR = build
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SRC_FILES = \
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startup.S \
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boot.c \
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crc32.c \
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display.c \
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error.c \
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exception.c \
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exception.S \
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font.c \
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init.c \
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interrupt.c \
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io.c \
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ipl2.S \
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main.c \
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menu.c \
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sc64.c \
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syscalls.c \
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test.c \
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version.c \
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fatfs/diskio.c \
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fatfs/ff.c \
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fatfs/ffsystem.c \
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fatfs/ffunicode.c
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ASSET_FILES = \
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sc64_logo_640_240_dimmed.png
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SRCS = $(SRC_FILES) $(ASSET_FILES)
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SRC_OBJS = $(patsubst %,%.o,$(SRC_FILES))
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ASSET_OBJS = $(patsubst %,%.asset.o,$(basename $(ASSET_FILES)))
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OBJS = $(addprefix $(BUILD_DIR)/,$(notdir $(SRC_OBJS) $(ASSET_OBJS)))
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DEPS = $(OBJS:.o=.d)
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VPATH = $(SRC_DIR) $(SRC_DIR)/fatfs $(ASSET_DIR)
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$(@info $(shell mkdir -p ./$(BUILD_DIR) &> /dev/null))
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$(BUILD_DIR)/%.S.o: %.S
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$(CC) -x assembler-with-cpp $(FLAGS) $(ASFLAGS) $(CFLAGS) -c $< -o $@
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$(BUILD_DIR)/%.c.o: %.c
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$(CC) $(FLAGS) $(CFLAGS) -c $< -o $@
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$(BUILD_DIR)/%.asset: $(ASSET_DIR)/%.png tools/asset_converter.py
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$(PYTHON) tools/asset_converter.py $< $@ --compress
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$(BUILD_DIR)/%.asset.o: $(BUILD_DIR)/%.asset $(ASSET_DIR)/assets.S
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@sed -e "s,@sym@,$*,g" -e "s,@file@,$<," < $(ASSET_DIR)/assets.S | $(CC) -x assembler-with-cpp $(FLAGS) $(ASFLAGS) $(CFLAGS) -c - -o $@
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$(BUILD_DIR)/bootloader.elf: $(OBJS) N64.ld
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$(CXX) $(FLAGS) $(LDFLAGS) -TN64.ld $(OBJS) -o $@
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@$(OBJDUMP) -S $@ > $(BUILD_DIR)/bootloader.lst
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$(BUILD_DIR)/bootloader.bin: $(BUILD_DIR)/bootloader.elf tools/strip.py
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@$(OBJCOPY) -O binary $< $@
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@chksum64 $@ > /dev/null
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@$(PYTHON) tools/strip.py $@
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$(BUILD_DIR)/bootloader.hex: $(BUILD_DIR)/bootloader.bin
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@$(OBJCOPY) -I binary -O ihex $< $@
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print_size: $(BUILD_DIR)/bootloader.elf
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@echo 'Size of modules:'
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@$(SIZE) -B -d -t --common $(OBJS)
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@echo 'Size of bootloader:'
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@$(SIZE) -B -d $<
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all: $(BUILD_DIR)/bootloader.hex print_size
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clean:
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@rm -rf ./$(BUILD_DIR)/*
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$(BUILD_DIR)/version.c.o: .FORCE
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.FORCE:
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.PHONY: .FORCE all clean print_size
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-include $(DEPS)
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@ -60,6 +60,34 @@ static const vi_regs_t vi_config[] = {{
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}};
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static void display_decompress_background (uint32_t *background) {
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uint32_t pixel_count = ((*background++) / sizeof(uint32_t));
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uint32_t pixels_painted = 0;
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uint8_t *background_data = (uint8_t *) (background);
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uint32_t *framebuffer = (uint32_t *) (display_framebuffer);
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while (pixels_painted < pixel_count) {
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int pixel_repeat = ((background_data[0]) + 1);
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uint32_t pixel_value = (
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((background_data[1]) << 24) |
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((background_data[2]) << 16) |
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((background_data[3]) << 8) |
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(background_data[4])
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);
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for (int i = 0; i < pixel_repeat; i++) {
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io_write(framebuffer++, pixel_value);
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}
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pixels_painted += pixel_repeat;
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background_data += 5;
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}
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}
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static void display_clear_background (void) {
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for (int i = 0; i < (SCREEN_WIDTH * SCREEN_HEIGHT); i++) {
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io_write(&display_framebuffer[i], BACKGROUND_COLOR);
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}
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}
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static void display_draw_character (char c) {
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if (c == '\n') {
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char_x = BORDER_WIDTH;
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@ -106,14 +134,10 @@ void display_init (uint32_t *background) {
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char_x = BORDER_WIDTH;
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char_y = BORDER_HEIGHT;
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if (background == NULL) {
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for (int i = 0; i < (SCREEN_WIDTH * SCREEN_HEIGHT); i++) {
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io_write(&display_framebuffer[i], BACKGROUND_COLOR);
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}
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if (background != NULL) {
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display_decompress_background(background);
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} else {
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for (int i = 0; i < (SCREEN_WIDTH * SCREEN_HEIGHT); i++) {
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io_write(&display_framebuffer[i], *background++);
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}
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display_clear_background();
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}
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io_write(&VI->MADDR, (uint32_t) (display_framebuffer));
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@ -5,22 +5,53 @@ from PIL import Image
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def compress(data: bytes, step_size: int=4) -> bytes:
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uncompressed_length = len(data)
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if ((uncompressed_length % step_size) != 0):
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raise ValueError(f'Data length not aligned to {step_size}')
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compressed_data = bytes()
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compressed_data += uncompressed_length.to_bytes(4, byteorder='big')
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count = 0
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last_value = b''
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for offset in range(0, uncompressed_length + step_size, step_size):
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next_value = data[offset:(offset + step_size)]
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if (offset != 0):
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if ((next_value == last_value) and (count < 255)):
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count += 1
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else:
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compressed_data += count.to_bytes(1, byteorder='big')
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compressed_data += last_value
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count = 0
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last_value = next_value
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return compressed_data
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if __name__ == "__main__":
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if (len(sys.argv) != 3):
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print(f"Usage: python {sys.argv[0]} input_path output_path")
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if (len(sys.argv) < 3):
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print(f"Usage: python {sys.argv[0]} input_path output_path [--compress]")
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sys.exit(1)
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asset_input = sys.argv[1]
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asset_output = sys.argv[2]
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asset_compress = len(sys.argv) > 3 and (sys.argv[3] == '--compress')
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source_asset = None
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final_asset = None
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try:
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source_asset = Image.open(asset_input)
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converted_asset = source_asset.convert("RGBA")
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converted_asset = source_asset.convert("RGBA").tobytes()
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if (asset_compress):
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converted_asset = compress(converted_asset)
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final_asset = open(asset_output, "wb")
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final_asset.write(converted_asset.tobytes())
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final_asset.write(converted_asset)
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except FileNotFoundError:
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print(f"Couldn't open file \"{asset_input}\"")
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sys.exit(2)
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