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nes: mapper 171: "Tui Do Woo Ma Jeung". mmc1 with no mirror control

This commit is contained in:
goyuken 2012-10-28 17:50:48 +00:00
parent 8ce3857305
commit 4fa571d6e9
1 changed files with 10 additions and 2 deletions
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12
BizHawk.Emulation/Consoles/Nintendo/NES/Boards/SxROM.cs
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@ -208,6 +208,7 @@ namespace BizHawk.Emulation.Consoles.Nintendo
protected int prg_mask, chr_mask;
protected int vram_mask;
const int pputimeout = 4; // i don't know if this is right, but anything lower will not boot Bill & Ted
bool disablemirror = false; // mapper 171: mmc1 without mirroring control
//state
public MMC1 mmc1;
@ -226,7 +227,8 @@ namespace BizHawk.Emulation.Consoles.Nintendo
{
ppuclock = 0;
mmc1.Write(addr, value);
SetMirrorType(mmc1.mirror); //often redundant, but gets the job done
if (!disablemirror)
SetMirrorType(mmc1.mirror); //often redundant, but gets the job done
}
}
@ -280,6 +282,11 @@ namespace BizHawk.Emulation.Consoles.Nintendo
break;
case "MAPPER001":
break;
case "MAPPER171": // Tui Do Woo Ma Jeung
AssertPrg(32); AssertChr(32); Cart.wram_size = 0;
disablemirror = true;
SetMirrorType(Cart.pad_h, Cart.pad_v);
break;
case "NES-SAROM": //dragon warrior
AssertPrg(64); AssertChr(16, 32, 64); AssertVram(0); AssertWram(8);
break;
@ -356,7 +363,8 @@ namespace BizHawk.Emulation.Consoles.Nintendo
prg_mask = (Cart.prg_size / 16) - 1;
vram_mask = (Cart.vram_size*1024) - 1;
chr_mask = (Cart.chr_size / 8 * 2) - 1;
SetMirrorType(mmc1.mirror);
if (!disablemirror)
SetMirrorType(mmc1.mirror);
ppuclock = pputimeout;
}