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NES - finish mapper 192

This commit is contained in:
adelikat 2012-07-29 18:12:37 +00:00
parent 7cbee7bde4
commit 71865576a7
2 changed files with 55 additions and 29 deletions
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83
BizHawk.Emulation/Consoles/Nintendo/NES/Boards/MMC3_family/Mapper192.cs
View File

@ -7,40 +7,14 @@ namespace BizHawk.Emulation.Consoles.Nintendo
{
class Mapper192 : MMC3Board_Base
{
/*
Here are Disch's original notes:
========================
= Mapper 192 =
========================
aka:
--------------------------
Pirate MMC3 variant
Example Game:
--------------------------
Ying Lie Qun Xia Zhuan
Notes:
--------------------------
This mapper is a modified MMC3 (or is based on MMC3?).
In addition to any CHR-ROM present, there is also an additional 4k of CHR-RAM which is selectable.
CHR Pages $08-$0B are CHR-RAM, other pages are CHR-ROM.
Apart from that, this mapper behaves exactly like your typical MMC3. See mapper 004 for details.
*/
//http://wiki.nesdev.com/w/index.php/INES_Mapper_192
public override bool Configure(NES.EDetectionOrigin origin)
{
//analyze board type
switch (Cart.board_type)
{
case "MAPPER192": //adelikat: I couldn't find any ROMs that weren't labeled as Mapper 04. All of these ran fine as far as I could tell, but just in case, I added this. I'm considering the mapper fully supported until proven otherwise.
case "MAPPER192":
break;
default:
return false;
@ -49,5 +23,56 @@ namespace BizHawk.Emulation.Consoles.Nintendo
BaseSetup();
return true;
}
public override void WritePPU(int addr, byte value)
{
if (addr < 0x2000)
{
VRAM[addr & 0xFFF] = value;
}
else
{
base.WritePPU(addr, value);
}
}
private int GetBankNum(int addr)
{
int bank_1k = Get_CHRBank_1K(addr);
bank_1k &= chr_mask;
return bank_1k;
}
public override byte ReadPPU(int addr)
{
if (addr < 0x2000)
{
int bank = GetBankNum(addr);
if (bank == 0x08)
{
byte value = VRAM[addr & 0x03FF];
return value;
}
else if (bank == 0x09)
{
return VRAM[(addr & 0x03FF) + 0x400];
}
else if (bank == 0x0A)
{
return VRAM[(addr & 0x03FF) + 0x800];
}
else if (bank == 0x0B)
{
return VRAM[(addr & 0x03FF) + 0xC00];
}
else
{
addr = MapCHR(addr);
return VROM[addr + extra_vrom];
}
}
else return base.ReadPPU(addr);
}
}
}

1
BizHawk.MultiClient/output/gamedb.txt
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@ -135,6 +135,7 @@ sha1:BFA31777E077E64AF0E274B5A22B57C6765D36E1 Fan Kong Jing Ying (Unl) (Ch) NES
sha1:17473C223453D2D80FCB9DCFA317947287DC5C52 Xing He Zhan Shi (Ch) NES board=MAPPER176
sha1:0B58E16B7FD5ABE62B1D9B1841875582DF5A9195 Ying Lie Qun Xia Zhuan (Ch) NES board=MAPPER192
sha1:27CB8AEAF0EA97A6C69D3D90BC056C5EB61695F6 Dai-2-Ji - Super Robot Taisen (Ch) NES board=MAPPER074;VRAM=2
sha1:0B58E16B7FD5ABE62B1D9B1841875582DF5A9195 Ying Lie Qun Xia Zhuan (Ch) NES board=MAPPER192;VRAM=4
;;;;;;;;;;;;;;;;;;;-----------------------------------------------------------------------
;;;;;;;;;;;;;;;;;;;-----------------------------------------------------------------------