RaySollium99/picodrive
1
0
Fork 0
mirror of https://github.com/RaySollium99/picodrive.git synced 2025-09-04 23:07:46 -04:00
Code Issues Projects Releases Packages Wiki Activity Actions

sms, set non-TMR images to region Japan

Browse source
This commit is contained in:
kub 2021-11-15 21:26:49 +01:00
parent fb82e166c6
commit 55615f9c97
1 changed files with 11 additions and 7 deletions
Download patch file Download diff file Expand all files Collapse all files

18
pico/sms.c
View file

@ -509,18 +509,22 @@ void PicoResetMS(void)
}
if (PicoIn.mapper)
Pico.ms.mapper = PicoIn.mapper;
if (PicoIn.regionOverride & 1)
Pico.m.hardware |= 0x4;
Pico.m.hardware |= 0x4; // default region Japan if no TMR header
// check if the ROM header contains more system information
for (tmr = 0x2000; tmr < 0xbfff && tmr <= Pico.romsize; tmr *= 2) {
if (!memcmp(Pico.rom + tmr-16, "TMR SEGA", 8)) {
hw = Pico.rom[tmr-1] >> 4;
if (hw >= 0x5 && hw < 0x8 && !PicoIn.hwSelect)
Pico.m.hardware |= 0x1; // GG cartridge detected
if ((hw == 0x5 || hw == 0x3) && !PicoIn.regionOverride)
Pico.m.hardware |= 0x4; // Region Japan
if (!PicoIn.hwSelect) {
Pico.m.hardware &= ~0x1;
if (hw >= 0x5 && hw < 0x8)
Pico.m.hardware |= 0x1; // GG cartridge detected
}
if (!PicoIn.regionOverride) {
Pico.m.hardware &= ~0x4;
if (hw == 0x5 || hw == 0x3)
Pico.m.hardware |= 0x4; // region Japan
}
id = CPU_LE4(*(u32 *)&Pico.rom[tmr-4]) & 0xf0f0ffff;
for (i = 0; i < sizeof(region_pal)/sizeof(*region_pal); i++)
if (id == region_pal[i] && !PicoIn.regionOverride) {