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Mapper 185 implemented via CNROM, mighty bomb jack (j) and spy vs spy (j) now work

This commit is contained in:
andres.delikat 2011-09-25 03:28:35 +00:00
parent 8efd076f99
commit fb0d6365b8
2 changed files with 30 additions and 1 deletions
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2
BizHawk.Emulation/Consoles/Nintendo/Docs/compatibility.txt
View File

@ -98,7 +98,7 @@ Open bus and bus conflict emulation is not considered complete or thorough in an
180 Misc (J) Complete (but we don't implement the crazy climber controller)
182 MMC3Variant Nothing
184 Sunsoft-1 Complete
185 Misc (J) {{See 003}} This one will be an organizational pain as the games need additional data in gamedb
185 Misc (J) Complete
189 MMC3Variant Nothing
191 Pirate Junk
192 Pirate Junk

29
BizHawk.Emulation/Consoles/Nintendo/NES/Boards/CNROM.cs
View File

@ -16,6 +16,8 @@ namespace BizHawk.Emulation.Consoles.Nintendo
{
//configuration
int prg_mask,chr_mask;
bool copyprotection;
bool chr_enabled = true;
bool bus_conflict;
//state
@ -35,6 +37,10 @@ namespace BizHawk.Emulation.Consoles.Nintendo
return false;
}
if (Cart.pcb == "HVC-CNROM-256K-01")
copyprotection = true;
else
copyprotection = false;
prg_mask = (Cart.prg_size / 16) - 1;
chr_mask = (Cart.chr_size / 8) - 1;
SetMirrorType(Cart.pad_h, Cart.pad_v);
@ -48,11 +54,30 @@ namespace BizHawk.Emulation.Consoles.Nintendo
if (bus_conflict) value = HandleNormalPRGConflict(addr,value);
value &= 3;
chr = value&chr_mask;
if (copyprotection)
{
if ((chr & 0x0F) > 0 && (chr != 0x13))
{
chr_enabled = true;
Console.WriteLine("chr enabled");
}
else
{
chr_enabled = false;
Console.WriteLine("chr disabled");
}
}
//Console.WriteLine("at {0}, set chr={1}", NES.ppu.ppur.status.sl, chr);
}
public override byte ReadPPU(int addr)
{
if (chr_enabled == false)
{
chr_enabled = true;
return 0x12;
}
if (addr < 0x2000)
{
return VROM[addr + (chr<<13)];
@ -64,6 +89,10 @@ namespace BizHawk.Emulation.Consoles.Nintendo
{
base.SyncState(ser);
ser.Sync("chr",ref chr);
ser.Sync("copyprotection", ref copyprotection);
ser.Sync("prg_mask", ref prg_mask);
ser.Sync("chr_mask", ref chr_mask);
ser.Sync("bus_conflict", ref bus_conflict);
}
}