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[NES] clean up mapper 107

This commit is contained in:
zeromus 2011-06-13 08:58:38 +00:00
parent db2ba34c01
commit 7705e3f6f1
3 changed files with 52 additions and 43 deletions
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2
BizHawk.Emulation/Consoles/Nintendo/Docs/compatibility.txt
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@ -83,7 +83,7 @@ Open bus and bus conflict emulation is not considered complete or thorough in an
096 Misc (J) Nothing 096 Misc (J) Nothing
097 Misc (J) Nothing (easy) 097 Misc (J) Nothing (easy)
105 NES-EVENT ~NEEDED~ 105 NES-EVENT ~NEEDED~
107 Misc Nothing (easy) 107 Unlicensed Complete
112 Misc (CN) Nothing 112 Misc (CN) Nothing
113 =USELESS= Junk 113 =USELESS= Junk
115 MMC3Variant Nothing 115 MMC3Variant Nothing

90
BizHawk.Emulation/Consoles/Nintendo/NES/Boards/Mapper107.cs
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@ -4,60 +4,66 @@ using System.Diagnostics;
namespace BizHawk.Emulation.Consoles.Nintendo namespace BizHawk.Emulation.Consoles.Nintendo
{ {
/* class Mapper107 : NES.NESBoardBase
Registers: {
--------------------------- //configuration
I do not know whether or not this mapper suffers from bus conflicts. Use caution! int prg_bank_mask_32k, chr_bank_mask_8k;
$8000-FFFF: [PPPP PPP.] //state
[CCCC CCCC] int prg_bank_32k, chr_bank_8k;
P = Selects 32k PRG @ $8000
C = Selects 8k CHR @ $0000
This is very strange. Bits 1-7 seem to be used by both CHR and PRG. public override void SyncState(Serializer ser)
{
base.SyncState(ser);
ser.Sync("prg_bank_32k", ref prg_bank_32k);
ser.Sync("chr_bank_8k", ref chr_bank_8k);
}
Games: public override bool Configure(NES.EDetectionOrigin origin)
Magic Dragon {
*/ //configure
class Mapper107 : NES.NESBoardBase
{
int prg, chr;
public override bool Configure(NES.EDetectionOrigin origin)
{
//configure
switch (Cart.board_type) switch (Cart.board_type)
{ {
case "Mapper107": case "Mapper107":
AssertPrg(128); AssertChr(64); AssertWram(8); AssertVram(0); AssertBattery(false);
break; break;
default: default:
return false; return false;
} }
return true;
prg_bank_mask_32k = (Cart.prg_size / 32) - 1;
chr_bank_mask_8k = (Cart.chr_size / 8) - 1;
SetMirrorType(Cart.pad_h, Cart.pad_v);
return true;
}
public override byte ReadPPU(int addr)
{
if (addr < 0x2000)
{
int ofs = addr & ((1 << 13) - 1);
addr = (chr_bank_8k << 13) | ofs;
return VROM[addr];
}
else return base.ReadPPU(addr);
} }
public override byte ReadPPU(int addr) public override byte ReadPRG(int addr)
{ {
return VRAM[addr + (chr * 0x2000)]; int ofs = addr & ((1 << 15) - 1);
} addr = (prg_bank_32k << 15) | ofs;
return ROM[addr];
}
public override byte ReadPRG(int addr) public override void WritePRG(int addr, byte value)
{ {
return VROM[addr + (prg * 0x8000)]; chr_bank_8k = value;
} prg_bank_32k = value >> 1;
chr_bank_8k &= chr_bank_mask_8k;
prg_bank_32k &= prg_bank_mask_32k;
}
public override void WriteWRAM(int addr, byte value) }
{
chr = value;
prg = addr >> 1;
base.WriteWRAM(addr, value);
}
public override void SyncState(Serializer ser)
{
base.SyncState(ser);
ser.Sync("prg", ref prg);
ser.Sync("chr", ref chr);
}
}
} }

3
BizHawk.MultiClient/output/gamedb.txt
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@ -2289,5 +2289,8 @@ sha1:0AE47BD83202A5A2235B0BC16278F56D66038AB5 Deathbots (U) NES board=AVE-NINA
;these roms are in goodNES but theyre junk ;these roms are in goodNES but theyre junk
sha1:4D6117577CE301BB987C5C32FEEF7B132A21B046 Afro Man (Mega Man 3 Hack) (UNL) NES board=TXROM-HOMEBREW;PRG=256;CHR=128;WRAM=8 sha1:4D6117577CE301BB987C5C32FEEF7B132A21B046 Afro Man (Mega Man 3 Hack) (UNL) NES board=TXROM-HOMEBREW;PRG=256;CHR=128;WRAM=8
;other assorted roms
sha1:92D9695FEB774F60965A8303CFE3E6AAEE7B7B62 Magic Dragon (Unl) NES board=Mapper107;PRG=128;CHR=64;WRAM=8;PAD_H=1
#include gamedb_neshomebrew.txt #include gamedb_neshomebrew.txt
#include gamedb_user.txt #include gamedb_user.txt