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ColecoHawk - implement memory domains

This commit is contained in:
adelikat 2012-11-20 00:35:22 +00:00
parent ff2c74245b
commit 5fda8801f4
2 changed files with 25 additions and 5 deletions
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28
BizHawk.Emulation/Consoles/Coleco/ColecoVision.cs
View File

@ -41,10 +41,33 @@ namespace BizHawk.Emulation.Consoles.Coleco
LoadRom(rom);
this.game = game;
SetupMemoryDomains();
Reset();
}
public IList<MemoryDomain> MemoryDomains { get { return memoryDomains; } }
public MemoryDomain MainMemory { get { return memoryDomains[0]; } }
IList<MemoryDomain> memoryDomains;
const ushort RamSizeMask = 0x03FF;
void SetupMemoryDomains()
{
var domains = new List<MemoryDomain>(3);
var MainMemoryDomain = new MemoryDomain("Main RAM", Ram.Length, Endian.Little,
addr => Ram[addr & RamSizeMask],
(addr, value) => Ram[addr & RamSizeMask] = value);
var VRamDomain = new MemoryDomain("Video RAM", VDP.VRAM.Length, Endian.Little,
addr => VDP.VRAM[addr & 0x3FFF],
(addr, value) => VDP.VRAM[addr & 0x3FFF] = value);
var SystemBusDomain = new MemoryDomain("System Bus", 0x10000, Endian.Little,
addr => Cpu.ReadMemory((ushort)addr),
(addr, value) => Cpu.WriteMemory((ushort)addr, value));
domains.Add(MainMemoryDomain);
domains.Add(VRamDomain);
domains.Add(SystemBusDomain);
memoryDomains = domains.AsReadOnly();
}
public void FrameAdvance(bool render, bool renderSound)
{
Frame++;
@ -159,8 +182,5 @@ namespace BizHawk.Emulation.Consoles.Coleco
public ISyncSoundProvider SyncSoundProvider { get { return null; } }
public bool StartAsyncSound() { return true; }
public void EndAsyncSound() { }
public IList<MemoryDomain> MemoryDomains { get { return null; } }
public MemoryDomain MainMemory { get { return null; } }
}
}

2
BizHawk.Emulation/Consoles/Coleco/TMS9918A.cs
View File

@ -5,7 +5,7 @@ namespace BizHawk.Emulation.Consoles.Coleco
{
public sealed class TMS9918A : IVideoProvider
{
byte[] VRAM = new byte[0x4000];
public byte[] VRAM = new byte[0x4000];
byte[] Registers = new byte[8];
byte StatusByte;