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Libretro: Fix realtime clock not updating in GB/GBC... 

Remove usage of RETRO_MEMORY_RTC - not required since real-time clock is always updated and is using current time and not ingame time.

Add some more rom info to logs during loading
This commit is contained in:
retro-wertz 2018-07-24 01:13:37 +08:00 committed by Rafael Kitover
parent 6cda6c0c24
commit a9ab09f749
1 changed files with 69 additions and 4 deletions
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73
src/libretro/libretro.cpp
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@ -258,12 +258,64 @@ static size_t vram_size(void)
return 0; return 0;
} }
static void gbUpdateRTC(void)
{
if (gb_hasbattery()) {
struct tm* lt;
time_t rawtime;
time(&rawtime);
lt = localtime(&rawtime);
switch (gbRomType) {
case 0x0f:
case 0x10: {
gbDataMBC3.mapperSeconds = lt->tm_sec;
gbDataMBC3.mapperMinutes = lt->tm_min;
gbDataMBC3.mapperHours = lt->tm_hour;
gbDataMBC3.mapperDays = lt->tm_yday & 255;
gbDataMBC3.mapperControl = (gbDataMBC3.mapperControl & 0xfe) | (lt->tm_yday > 255 ? 1 : 0);
gbDataMBC3.mapperLastTime = rawtime;
}
break;
case 0xfd: {
uint8_t gbDaysinMonth[12] = { 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 };
gbDataTAMA5.mapperSeconds = lt->tm_sec;
gbDataTAMA5.mapperMinutes = lt->tm_min;
gbDataTAMA5.mapperHours = lt->tm_hour;
gbDataTAMA5.mapperDays = 1;
gbDataTAMA5.mapperMonths = 1;
gbDataTAMA5.mapperYears = 1970;
gbDataTAMA5.mapperLastTime = rawtime;
int days = lt->tm_yday + 365 * 3;
while (days) {
gbDataTAMA5.mapperDays++;
days--;
if (gbDataTAMA5.mapperDays > gbDaysinMonth[gbDataTAMA5.mapperMonths - 1]) {
gbDataTAMA5.mapperDays = 1;
gbDataTAMA5.mapperMonths++;
if (gbDataTAMA5.mapperMonths > 12) {
gbDataTAMA5.mapperMonths = 1;
gbDataTAMA5.mapperYears++;
if ((gbDataTAMA5.mapperYears & 3) == 0)
gbDaysinMonth[1] = 29;
else
gbDaysinMonth[1] = 28;
}
}
}
gbDataTAMA5.mapperControl = (gbDataTAMA5.mapperControl & 0xfe) | (lt->tm_yday > 255 ? 1 : 0);
}
break;
}
}
}
void* retro_get_memory_data(unsigned id) void* retro_get_memory_data(unsigned id)
{ {
if (id == RETRO_MEMORY_SAVE_RAM) if (id == RETRO_MEMORY_SAVE_RAM)
return savedata_ptr(); return savedata_ptr();
if (id == RETRO_MEMORY_RTC) //if (id == RETRO_MEMORY_RTC)
return rtcdata_ptr(); //return rtcdata_ptr();
if (id == RETRO_MEMORY_SYSTEM_RAM) if (id == RETRO_MEMORY_SYSTEM_RAM)
return wram_ptr(); return wram_ptr();
if (id == RETRO_MEMORY_VIDEO_RAM) if (id == RETRO_MEMORY_VIDEO_RAM)
@ -275,8 +327,8 @@ size_t retro_get_memory_size(unsigned id)
{ {
if (id == RETRO_MEMORY_SAVE_RAM) if (id == RETRO_MEMORY_SAVE_RAM)
return savedata_size(); return savedata_size();
if (id == RETRO_MEMORY_RTC) //if (id == RETRO_MEMORY_RTC)
return rtcdata_size(); //return rtcdata_size();
if (id == RETRO_MEMORY_SYSTEM_RAM) if (id == RETRO_MEMORY_SYSTEM_RAM)
return wram_size(); return wram_size();
if (id == RETRO_MEMORY_VIDEO_RAM) if (id == RETRO_MEMORY_VIDEO_RAM)
@ -734,6 +786,10 @@ static void gb_init(void)
gbReset(); // also resets sound; gbReset(); // also resets sound;
// VBA-M always updates time based on current time and not in-game time.
// No need to add RTC data to RETRO_MEMORY_RTC, so its safe to place this here.
gbUpdateRTC();
log("Rom size : %02x (%dK)\n", gbRom[0x148], (romSize + 1023) / 1024); log("Rom size : %02x (%dK)\n", gbRom[0x148], (romSize + 1023) / 1024);
log("Cartridge type : %02x (%s)\n", gbRom[0x147], gbGetCartridgeType()); log("Cartridge type : %02x (%s)\n", gbRom[0x147], gbGetCartridgeType());
log("Ram size : %02x (%s)\n", gbRom[0x149], gbGetSaveRamSize()); log("Ram size : %02x (%s)\n", gbRom[0x149], gbGetSaveRamSize());
@ -753,6 +809,15 @@ static void gb_init(void)
crc16 -= gbRom[0x14e] + gbRom[0x14f]; crc16 -= gbRom[0x14e] + gbRom[0x14f];
log("Checksum : %04x (%04x)\n", crc16, gbRom[0x14e] * 256 + gbRom[0x14f]); log("Checksum : %04x (%04x)\n", crc16, gbRom[0x14e] * 256 + gbRom[0x14f]);
if (gb_hasbattery)
log(": Game supports battery save ram.\n");
if (gbRom[0x143] == 0xc0)
log(": Game works on CGB only\n");
else if (gbRom[0x143] == 0x80)
log(": Game supports GBC functions, GB compatible.\n");
if (gbRom[0x146] == 0x03)
log(": Game supports SGB functions\n");
} }
static void gba_soundchanged(void) static void gba_soundchanged(void)