Leahnaya/GBA_MultiMenu
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Lesserkuma
2026-07-02 11:43:43 +02:00
parent 3e0a6e89cb
commit 2a7b04e1ee
5 changed files with 251 additions and 35 deletions
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81
source/flash.c
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@@ -14,6 +14,7 @@ u8 flash_type;
u8 *itemlist;
u16 itemlist_offset;
u32 flash_sector_size;
u16 flash_buffer_size;
u32 flash_itemlist_sector_offset;
u32 flash_status_sector_offset;
u32 flash_save_sector_offset;
@@ -47,6 +48,7 @@ IWRAM_CODE void FlashDetectType(void)
REG_IE = ie;
flash_type = 1;
flash_sector_size = 0x40000;
flash_buffer_size = 0x400;
FlashCalcOffsets();
return;
}
@@ -63,11 +65,13 @@ IWRAM_CODE void FlashDetectType(void)
REG_IE = ie;
flash_type = 2;
flash_sector_size = 0x20000;
flash_buffer_size = 0x20;
FlashCalcOffsets();
return;
}
// 1G cart with MSP54LV100S (Zelda Classic Collection 7-in-1)
// 2G cart with GL04GR00FHCR2 (369-in-1)
_FLASH_WRITE(0, 0xF0);
_FLASH_WRITE(0xAAA, 0xA9);
_FLASH_WRITE(0x555, 0x56);
@@ -76,9 +80,20 @@ IWRAM_CODE void FlashDetectType(void)
_FLASH_WRITE(0, 0xF0);
if (data == 0x227D0002)
{
_FLASH_WRITE(0xAA, 0x98);
data = *(vu32 *)(AGB_ROM+0x54) & 0xFFFF;
if (((*(vu16 *)(AGB_ROM+0x20) & 0xFF) == 'R') &&
((*(vu16 *)(AGB_ROM+0x22) & 0xFF) == 'Q') &&
((*(vu16 *)(AGB_ROM+0x24) & 0xFF) == 'Z'))
{
data = (data & ~3U) | ((data & 1) << 1) | ((data & 2) >> 1);
}
_FLASH_WRITE(0, 0xF0);
REG_IE = ie;
flash_type = 3;
flash_sector_size = 0x20000;
flash_buffer_size = 1 << data;
FlashCalcOffsets();
return;
}
@@ -165,33 +180,35 @@ IWRAM_CODE void FlashWriteData(u32 address, u32 length)
FlashDetectType();
}
u8 _flash_type = flash_type;
u16 _flash_buffer_size = flash_buffer_size;
u16 _flash_buffer_count = (_flash_buffer_size >> 1) - 1;
vu16 *p_rom = (vu16 *)(AGB_ROM + address);
vu16 ie = REG_IE;
REG_IE = ie & 0xFFFE;
if (_flash_type == 1)
{
for (int j = 0; j < (int)(length / 0x400); j++)
for (int j = 0; j < (int)(length / _flash_buffer_size); j++)
{
_FLASH_WRITE(address + (j * 0x400), 0xEA);
_FLASH_WRITE(address + (j * _flash_buffer_size), 0xEA);
while (1)
{
__asm("nop");
if ((p_rom[(j * 0x200)] & 0x80) == 0x80)
if ((p_rom[(j * (_flash_buffer_size >> 1))] & 0x80) == 0x80)
{
break;
}
}
_FLASH_WRITE(address + (j * 0x400), 0x1FF);
for (int i = 0; i < 0x400; i += 2)
_FLASH_WRITE(address + (j * _flash_buffer_size), _flash_buffer_count);
for (int i = 0; i < _flash_buffer_size; i += 2)
{
_FLASH_WRITE(address + (j * 0x400) + i, data_buffer[(j * 0x400) + i + 1] << 8 | data_buffer[(j * 0x400) + i]);
_FLASH_WRITE(address + (j * _flash_buffer_size) + i, data_buffer[(j * _flash_buffer_size) + i + 1] << 8 | data_buffer[(j * _flash_buffer_size) + i]);
}
_FLASH_WRITE(address + (j * 0x400), 0xD0);
_FLASH_WRITE(address + (j * _flash_buffer_size), 0xD0);
while (1)
{
__asm("nop");
if ((p_rom[(j * 0x200)] & 0x80) == 0x80)
if ((p_rom[(j * (_flash_buffer_size >> 1))] & 0x80) == 0x80)
{
break;
}
@@ -201,24 +218,24 @@ IWRAM_CODE void FlashWriteData(u32 address, u32 length)
}
else if (_flash_type == 2)
{
for (int j = 0; j < (int)(length / 0x20); j++)
for (int j = 0; j < (int)(length / _flash_buffer_size); j++)
{
_FLASH_WRITE(0xAAA, 0xAAA9);
_FLASH_WRITE(0x555, 0x5556);
_FLASH_WRITE(address + (j * 0x20), 0x2526);
_FLASH_WRITE(address + (j * 0x20), 0x0F0F);
_FLASH_WRITE(address + (j * _flash_buffer_size), 0x2526);
_FLASH_WRITE(address + (j * _flash_buffer_size), _flash_buffer_count | (_flash_buffer_count << 8));
u16 data = 0;
for (int i = 0; i < 0x20; i += 2)
for (int i = 0; i < _flash_buffer_size; i += 2)
{
__asm("nop");
data = data_buffer[(j * 0x20) + i + 1] << 8 | data_buffer[(j * 0x20) + i];
_FLASH_WRITE(address + (j * 0x20) + i, data);
data = data_buffer[(j * _flash_buffer_size) + i + 1] << 8 | data_buffer[(j * _flash_buffer_size) + i];
_FLASH_WRITE(address + (j * _flash_buffer_size) + i, data);
}
_FLASH_WRITE(address + (j * 0x20), 0x292A);
_FLASH_WRITE(address + (j * _flash_buffer_size), 0x292A);
while (1)
{
__asm("nop");
if (p_rom[(j * 0x10) + 0x0F] == data)
if (p_rom[(j * (_flash_buffer_size >> 1)) + ((_flash_buffer_size >> 1) - 1)] == data)
{
break;
}
@@ -228,24 +245,24 @@ IWRAM_CODE void FlashWriteData(u32 address, u32 length)
}
else if (_flash_type == 3)
{
for (int j = 0; j < (int)(length / 0x40); j++)
for (int j = 0; j < (int)(length / _flash_buffer_size); j++)
{
_FLASH_WRITE(0xAAA, 0xA9);
_FLASH_WRITE(0x555, 0x56);
_FLASH_WRITE(address + (j * 0x40), 0x26);
_FLASH_WRITE(address + (j * 0x40), 0x1F);
_FLASH_WRITE(address + (j * _flash_buffer_size), 0x26);
_FLASH_WRITE(address + (j * _flash_buffer_size), _flash_buffer_count);
u16 data = 0;
for (int i = 0; i < 0x40; i += 2)
for (int i = 0; i < _flash_buffer_size; i += 2)
{
__asm("nop");
data = data_buffer[(j * 0x40) + i + 1] << 8 | data_buffer[(j * 0x40) + i];
_FLASH_WRITE(address + (j * 0x40) + i, data);
data = data_buffer[(j * _flash_buffer_size) + i + 1] << 8 | data_buffer[(j * _flash_buffer_size) + i];
_FLASH_WRITE(address + (j * _flash_buffer_size) + i, data);
}
_FLASH_WRITE(address + (j * 0x40), 0x2A);
_FLASH_WRITE(address + (j * _flash_buffer_size), 0x2A);
while (1)
{
__asm("nop");
if (p_rom[(j * 0x20) + 0x1F] == data)
if (p_rom[(j * (_flash_buffer_size >> 1)) + ((_flash_buffer_size >> 1) - 1)] == data)
{
break;
}
@@ -337,9 +354,19 @@ IWRAM_CODE u8 BootGame(ItemConfig config, FlashStatus status)
REG_IE = 0;
// Set mapper configuration
*(vu8 *)MAPPER_CONFIG1 = ((config.rom_offset / 0x40) & 0xF) << 4; // flash bank (0~7)
*(vu8 *)MAPPER_CONFIG2 = 0x40 + (config.rom_offset % 0x40); // ROM offset (in 512 KB blocks) within current flash bank
*(vu8 *)MAPPER_CONFIG3 = 0x40 - config.rom_size; // accessible ROM size (in 512 KB blocks)
u8 mapper_config1 = ((config.rom_offset / 0x40) & 0xF) << 4; // flash bank (0~7)
u8 mapper_config2 = 0x40 + (config.rom_offset % 0x40); // ROM offset (in 512 KB blocks) within current flash bank
u8 mapper_config3 = 0x40 - config.rom_size; // accessible ROM size (in 512 KB blocks)
u8 mapper_lock = mapper_config2 | 0x80;
*(vu8 *)MAPPER_CONFIG1 = mapper_config1;
__asm volatile("nop");
*(vu8 *)MAPPER_CONFIG2 = mapper_config2;
__asm volatile("nop");
*(vu8 *)MAPPER_CONFIG3 = mapper_config3;
__asm volatile("nop");
*(vu8 *)MAPPER_CONFIG2 = mapper_lock;
__asm volatile("nop");
// Wait until menu ROM is no longer visible
u32 timeout = 0x2FFF;

5
source/main.c
View File

@@ -29,6 +29,7 @@ extern u8 *itemlist;
extern u8 flash_type;
extern u16 itemlist_offset;
extern u32 flash_sector_size;
extern u16 flash_buffer_size;
extern u32 flash_itemlist_sector_offset;
extern u32 flash_status_sector_offset;
extern u32 flash_save_sector_offset;
@@ -198,7 +199,7 @@ int main(void) {
// Draw status bar
LoadFont(2);
memset(temp_unicode, 0, sizeof(temp_unicode));
snprintf(temp_ascii, 10+1, "%d/%d", page_active*8+cursor_pos+1, roms_total);
snprintf(temp_ascii, 10+1, "%d/%d", page_active+1, page_total);
AsciiToUnicode(temp_ascii, temp_unicode);
DrawText(11, SCREEN_HEIGHT - sFontSpecs.max_height - 3 - FontMarginBottom, ALIGN_RIGHT, temp_unicode, 10, font, (void*)AGB_VRAM+0xA000, FALSE);
if (boot_failed) {
@@ -221,7 +222,7 @@ int main(void) {
u8 a = ((sItemConfig.rom_offset / 0x40) & 0xF) << 4;
u8 b = 0x40 + (sItemConfig.rom_offset % 0x40);
u8 c = 0x40 - sItemConfig.rom_size;
snprintf(temp_ascii, 64, "%02X:%02X:%02X|0x%X~%dMiB|%X", a, b, c, (int)(sItemConfig.rom_offset * 512 * 1024), (int)(sItemConfig.rom_size * 512 >> 10), (int)(flash_save_sector_offset + sItemConfig.save_index));
snprintf(temp_ascii, 64, "%02X:%02X:%02X|0x%X~%dMiB|%X - %X", a, b, c, (unsigned int)(sItemConfig.rom_offset * 512 * 1024), (int)(sItemConfig.rom_size * 512 >> 10), (unsigned int)(flash_save_sector_offset + sItemConfig.save_index), (unsigned int)flash_buffer_size);
memset(temp_unicode, 0, sizeof(temp_unicode));
AsciiToUnicode(temp_ascii, temp_unicode);
DrawText(6, SCREEN_HEIGHT - sFontSpecs.max_height - 3 - FontMarginBottom, ALIGN_LEFT, temp_unicode, 64, font, (void*)AGB_VRAM+0xA000, FALSE);