BizHawk/BizHawk.Emulation.Cores/Consoles/Nintendo/GBA/VBANext.IMemoryDomains.cs

72 lines
2.4 KiB
C#

using System;
using System.Collections.Generic;
using System.Linq;
using BizHawk.Emulation.Common;
namespace BizHawk.Emulation.Cores.Nintendo.GBA
{
public partial class VBANext
{
private IMemoryDomains _memoryDomains;
private void InitMemoryDomains()
{
var mm = new List<MemoryDomain>();
var s = new LibVBANext.MemoryAreas();
var l = MemoryDomain.Endian.Little;
LibVBANext.GetMemoryAreas(Core, s);
mm.Add(MemoryDomain.FromIntPtr("IWRAM", 32 * 1024, l, s.iwram, true, 4));
mm.Add(MemoryDomain.FromIntPtr("EWRAM", 256 * 1024, l, s.ewram, true, 4));
mm.Add(MemoryDomain.FromIntPtr("BIOS", 16 * 1024, l, s.bios, false, 4));
mm.Add(MemoryDomain.FromIntPtr("PALRAM", 1024, l, s.palram, false, 4));
mm.Add(MemoryDomain.FromIntPtr("VRAM", 96 * 1024, l, s.vram, true, 4));
mm.Add(MemoryDomain.FromIntPtr("OAM", 1024, l, s.oam, true, 4));
mm.Add(MemoryDomain.FromIntPtr("ROM", 32 * 1024 * 1024, l, s.rom, true, 4));
mm.Add(MemoryDomain.FromIntPtr("SRAM", s.sram_size, l, s.sram, true, 4));
mm.Add(new MemoryDomainDelegate("System Bus", 0x10000000, l,
delegate(long addr)
{
if (addr < 0 || addr >= 0x10000000)
throw new ArgumentOutOfRangeException();
return LibVBANext.SystemBusRead(Core, (int)addr);
},
delegate(long addr, byte val)
{
if (addr < 0 || addr >= 0x10000000)
throw new ArgumentOutOfRangeException();
LibVBANext.SystemBusWrite(Core, (int)addr, val);
}, 4));
// special combined ram memory domain
{
var ew = mm[1];
var iw = mm[0];
MemoryDomain cr = new MemoryDomainDelegate("Combined WRAM", (256 + 32) * 1024, MemoryDomain.Endian.Little,
delegate(long addr)
{
if (addr < 0 || addr >= (256 + 32) * 1024)
throw new IndexOutOfRangeException();
if (addr >= 256 * 1024)
return iw.PeekByte(addr & 32767);
else
return ew.PeekByte(addr);
},
delegate(long addr, byte val)
{
if (addr < 0 || addr >= (256 + 32) * 1024)
throw new IndexOutOfRangeException();
if (addr >= 256 * 1024)
iw.PokeByte(addr & 32767, val);
else
ew.PokeByte(addr, val);
}, 4);
mm.Add(cr);
}
_memoryDomains = new MemoryDomainList(mm);
(ServiceProvider as BasicServiceProvider).Register<IMemoryDomains>(_memoryDomains);
}
}
}