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Snes9x - Add render position hack and clean up rest. (#880)

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This removes the "known bad dumps" section, which probably aren't
relevant anymore. It also removes commented out APU hacks which are
no longer needed.
This commit is contained in:
bladeoner 2019-11-27 19:42:40 +01:00 committed by dborth
parent d7739e797e
commit adb43e9262
1 changed files with 58 additions and 70 deletions
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72
source/snes9x/memmap.cpp
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@ -2635,6 +2635,12 @@ void CMemory::InitROM (void)
and the NMI handler, time enough for an instruction or two. */
// Wild Guns, Mighty Morphin Power Rangers - The Fighting Edition
Timings.NMIDMADelay = 24;
Timings.IRQTriggerCycles = 14;
Timings.APUSpeedup = 0;
#ifdef GEKKO
Timings.APUAllowTimeOverflow = FALSE;
#endif
S9xAPUTimingSetSpeedup(Timings.APUSpeedup);
IPPU.TotalEmulatedFrames = 0;
@ -3645,26 +3651,8 @@ void CMemory::ApplyROMFixes (void)
{
Settings.BlockInvalidVRAMAccess = Settings.BlockInvalidVRAMAccessMaster;
//// Warnings
// Reject strange hacked games
if ((ROMCRC32 == 0x6810aa95) ||
(ROMCRC32 == 0x340f23e5) ||
(ROMCRC32 == 0x77fd806a) ||
(match_nn("HIGHWAY BATTLE 2")) ||
(match_na("FX SKIING NINTENDO 96") && (ROM[0x7fda] == 0)) ||
(match_nn("HONKAKUHA IGO GOSEI") && (ROM[0xffd5] != 0x31)))
{
Settings.DisplayColor = BUILD_PIXEL(31, 0, 0);
SET_UI_COLOR(255, 0, 0);
}
//// APU timing hacks :(
Timings.APUSpeedup = 0;
#ifdef GEKKO
Timings.APUAllowTimeOverflow = FALSE;
#endif
if (Settings.DisableGameSpecificHacks)
return;
if (!Settings.DisableGameSpecificHacks)
{
@ -3736,11 +3724,6 @@ void CMemory::ApplyROMFixes (void)
#ifdef GEKKO
S9xAPUAllowTimeOverflow(Timings.APUAllowTimeOverflow);
#endif
//// Other timing hacks :(
Timings.HDMAStart = SNES_HDMA_START_HC + Settings.HDMATimingHack - 100;
Timings.HBlankStart = SNES_HBLANK_START_HC + Timings.HDMAStart - SNES_HDMA_START_HC;
Timings.IRQTriggerCycles = 14;
#ifdef GEKKO
if (match_id("YI ")) { // Super Mario World 2 - Yoshi's Island
@ -3751,28 +3734,23 @@ void CMemory::ApplyROMFixes (void)
}
#endif
if (!Settings.DisableGameSpecificHacks)
{
// The delay to sync CPU and DMA which Snes9x cannot emulate.
// Other timing hacks
// The delay to sync CPU and DMA which Snes9x does not emulate.
// Some games need really severe delay timing...
if (match_na("BATTLE GRANDPRIX")) // Battle Grandprix
{
Timings.DMACPUSync = 20;
printf("DMA sync: %d\n", Timings.DMACPUSync);
}
else if (match_na("KORYU NO MIMI ENG")) // Koryu no Mimi translation by rpgone)
{
// An infinite loop reads $4210 and checks NMI flag. This only works if LDA instruction executes before the NMI triggers,
// which doesn't work very well with s9x's default DMA timing.
Timings.DMACPUSync = 20;
}
if (Timings.DMACPUSync != 18)
printf("DMA sync: %d\n", Timings.DMACPUSync);
}
}
//// SRAM initial value
if (!Settings.DisableGameSpecificHacks)
{
// SRAM initial value
if (match_na("HITOMI3"))
{
SRAMSize = 1;
@ -3791,12 +3769,8 @@ void CMemory::ApplyROMFixes (void)
SNESGameFixes.SRAMInitialValue = 0x6b;
// others: BS and ST-01x games are 0x00.
}
//// OAM hacks :(
if (!Settings.DisableGameSpecificHacks)
{
// OAM hacks :(
// OAM hacks because we don't fully understand the behavior of the SNES.
// Totally wacky display in 2P mode...
// seems to need a disproven behavior, so we're definitely overlooking some other bug?
@ -3805,7 +3779,21 @@ void CMemory::ApplyROMFixes (void)
SNESGameFixes.Uniracers = TRUE;
printf("Applied Uniracers hack.\n");
}
}
// Render Position
if (match_na("Sugoro Quest++"))
Timings.RenderPos = 128;
else if (match_na("FIREPOWER 2000"))
Timings.RenderPos = 32;
else if (match_na("DERBY STALLION 98"))
Timings.RenderPos = 128;
else if (match_na("AIR STRIKE PATROL") || match_na("DESERT FIGHTER"))
Timings.RenderPos = 128; // Just hides shadow
// From bsnes
else if (match_na("NHL '94") || match_na("NHL PROHOCKEY'94"))
Timings.RenderPos = 32;
else if (match_na("ADVENTURES OF FRANKEN") && Settings.PAL)
Timings.RenderPos = 32;
}
// BPS % UPS % IPS