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Writes to SVBK should work before the boot ROM is disabled

This commit is contained in:
Lior Halphon 2021-10-23 23:51:48 +03:00
parent 5808d4485f
commit 0dcd233cbb
1 changed files with 5 additions and 6 deletions
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11
Core/memory.c
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@ -1234,12 +1234,11 @@ static void write_high_memory(GB_gameboy_t *gb, uint16_t addr, uint8_t value)
gb->io_registers[GB_IO_DMA] = value; gb->io_registers[GB_IO_DMA] = value;
return; return;
case GB_IO_SVBK: case GB_IO_SVBK:
if (!gb->cgb_mode) { if (gb->cgb_mode || (GB_is_cgb(gb) && !gb->boot_rom_finished)) {
return; gb->cgb_ram_bank = value & 0x7;
} if (!gb->cgb_ram_bank) {
gb->cgb_ram_bank = value & 0x7; gb->cgb_ram_bank++;
if (!gb->cgb_ram_bank) { }
gb->cgb_ram_bank++;
} }
return; return;
case GB_IO_VBK: case GB_IO_VBK: