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sms, add system select option

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This commit is contained in:
kub 2021-10-19 22:45:32 +02:00
parent cc1547e8cd
commit 280bfc3ca7
9 changed files with 97 additions and 28 deletions
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2
pico/media.c
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@ -298,7 +298,7 @@ enum media_type_e PicoLoadMedia(const char *filename,
// simple test for GG. Do this here since m.hardware is nulled in Insert
if (PicoIn.AHW & PAHW_SMS) {
if (!strcmp(rom->ext,"gg")) {
if (!strcmp(rom->ext,"gg") && !PicoIn.hwSelect) {
Pico.m.hardware |= 0x1;
lprintf("detected GG ROM\n");
} else

5
pico/pico.h
View file

@ -82,6 +82,10 @@ extern void *p32x_bios_g, *p32x_bios_m, *p32x_bios_s;
#define PAHW_PICO (1<<3)
#define PAHW_SMS (1<<4)
#define PHWS_AUTO 0
#define PHWS_GG 1
#define PHWS_SMS 2
#define PQUIRK_FORCE_6BTN (1<<0)
// the emulator is configured and some status is reported
@ -97,6 +101,7 @@ typedef struct PicoInterface
unsigned short skipFrame; // skip rendering frame, but still do sound (if enabled) and emulation stuff
unsigned short regionOverride; // override the region detection 0: auto, 1: Japan NTSC, 2: Japan PAL, 4: US, 8: Europe
unsigned short autoRgnOrder; // packed priority list of regions, for example 0x148 means this detection order: EUR, USA, JAP
unsigned short hwSelect; // hardware preselected via option menu
unsigned short quirks; // game-specific quirks: PQUIRK_*
unsigned short overclockM68k; // overclock the emulated 68k, in %

28
pico/sms.c
View file

@ -335,6 +335,24 @@ void PicoResetMS(void)
ymflag = 0xffff;
Pico.m.dirtyPal = 1;
if (PicoIn.hwSelect) {
switch (PicoIn.hwSelect) {
case PHWS_GG: Pico.m.hardware |= 0x1; break;
default: Pico.m.hardware &= ~0x1; break;
}
} else {
unsigned tmr;
// 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;
}
}
}
// reset memory mapping
PicoMemSetupMS();
}
@ -342,7 +360,6 @@ void PicoResetMS(void)
void PicoPowerMS(void)
{
int s, tmp;
unsigned tmr;
memset(&PicoMem,0,sizeof(PicoMem));
memset(&Pico.video,0,sizeof(Pico.video));
@ -359,15 +376,6 @@ 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();
}