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Fix for intermittent savestate crash in MVS games.

This commit is contained in:
dinkc64 2014-06-18 06:54:32 +00:00
parent 2ecd66bb0b
commit 7c8ed26711
1 changed files with 15 additions and 1 deletions
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16
src/burn/drv/neogeo/neo_run.cpp
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@ -209,6 +209,7 @@ static bool bZ80BoardROMBankedIn;
static INT32 nZ80Bank0, nZ80Bank1, nZ80Bank2, nZ80Bank3;
static UINT8* NeoGraphicsRAMBank;
static UINT32 NeoGraphicsRAMBank2; // for recalculation of the above variable.
static UINT16 NeoGraphicsRAMPointer;
static INT32 nNeoGraphicsModulo;
@ -1436,8 +1437,18 @@ INT32 NeoScan(INT32 nAction, INT32* pnMin)
SCAN_VAR(nNeo68KROMBank);
}
SCAN_OFF(NeoGraphicsRAMBank, NeoGraphicsRAM, nAction);
// -- June 17, 2014 - dink
//SCAN_OFF(NeoGraphicsRAMBank, NeoGraphicsRAM, nAction); - SCAN_OFF(); sometimes returns a bad pointer, so its re-calculated below - dink
SCAN_VAR(NeoGraphicsRAMBank2);
SCAN_VAR(NeoGraphicsRAMPointer);
if (nAction & ACB_WRITE) {
NeoGraphicsRAMBank = NeoGraphicsRAM;
NeoGraphicsRAMBank += NeoGraphicsRAMBank2;
}
SCAN_VAR(nNeoGraphicsModulo);
// -- end
SCAN_VAR(nNeoSpriteFrame); SCAN_VAR(nSpriteFrameSpeed); SCAN_VAR(nSpriteFrameTimer);
SCAN_VAR(nNeoPaletteBank);
@ -2140,8 +2151,11 @@ void __fastcall neogeoWriteWordVideo(UINT32 sekAddress, UINT16 wordValue)
case 0x00: {
NeoGraphicsRAMPointer = wordValue << 1;
NeoGraphicsRAMBank = NeoGraphicsRAM;
NeoGraphicsRAMBank2 = 0;
if (wordValue & 0x8000) {
NeoGraphicsRAMBank += 0x00010000;
NeoGraphicsRAMBank2 += 0x00010000;
}
break;
}