47 lines
1017 B
C#
47 lines
1017 B
C#
using System;
|
|
using System.IO;
|
|
using System.Diagnostics;
|
|
|
|
namespace BizHawk.Emulation.Consoles.Nintendo
|
|
{
|
|
//aka NAMCOT-3446
|
|
public class Mapper076 : Namcot108Board_Base
|
|
{
|
|
public override bool Configure(NES.EDetectionOrigin origin)
|
|
{
|
|
//analyze board type
|
|
switch (Cart.board_type)
|
|
{
|
|
case "NAMCOT-3446": //Megami Tensei: Digital Devil Story
|
|
case "MAPPER076":
|
|
break;
|
|
default:
|
|
return false;
|
|
}
|
|
|
|
BaseSetup();
|
|
SetMirrorType(EMirrorType.Vertical);
|
|
|
|
return true;
|
|
}
|
|
|
|
int RewireCHR(int addr)
|
|
{
|
|
int mapper_addr = addr >> 1;
|
|
int bank_1k = mapper.Get_CHRBank_1K(mapper_addr + 0x1000);
|
|
int ofs = addr & ((1 << 11) - 1);
|
|
return (bank_1k << 11) + ofs;
|
|
}
|
|
|
|
public override byte ReadPPU(int addr)
|
|
{
|
|
if (addr < 0x2000) return VROM[RewireCHR(addr)];
|
|
else return base.ReadPPU(addr);
|
|
}
|
|
public override void WritePPU(int addr, byte value)
|
|
{
|
|
if (addr < 0x2000) { }
|
|
else base.WritePPU(addr, value);
|
|
}
|
|
}
|
|
} |