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sms, improve gg detection (zip, rom header)

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This commit is contained in:
kub 2021-10-15 19:22:01 +02:00
parent 466fa07953
commit 14cd01be51
3 changed files with 14 additions and 2 deletions
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10
pico/sms.c
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@ -323,6 +323,7 @@ void PicoResetMS(void)
void PicoPowerMS(void)
{
int s, tmp;
unsigned tmr;
memset(&PicoMem,0,sizeof(PicoMem));
memset(&Pico.video,0,sizeof(Pico.video));
@ -339,6 +340,15 @@ void PicoPowerMS(void)
tmp = 1 << s;
bank_mask = (tmp - 1) >> 14;
// check if the ROM header contains more system information to detect GG
for (tmr = 0x2000; tmr < 0xbfff && tmr <= Pico.romsize; tmr *= 2) {
if (!memcmp(Pico.rom + tmr-16, "TMR SEGA", 8)) {
if (Pico.rom[tmr-1] >= 0x50 && Pico.rom[tmr-1] < 0x80)
Pico.m.hardware |= 0x1;
break;
}
}
PicoReset();
}