57 lines
2.0 KiB
C#
57 lines
2.0 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Linq;
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using BizHawk.Emulation.Common;
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namespace BizHawk.Emulation.Cores.Nintendo.Gameboy
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{
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public partial class Gameboy
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{
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private List<MemoryDomain> _memoryDomains = new List<MemoryDomain>();
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internal IMemoryDomains MemoryDomains { get; set; }
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void CreateMemoryDomain(LibGambatte.MemoryAreas which, string name)
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{
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IntPtr data = IntPtr.Zero;
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int length = 0;
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if (!LibGambatte.gambatte_getmemoryarea(GambatteState, which, ref data, ref length))
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throw new Exception("gambatte_getmemoryarea() failed!");
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// if length == 0, it's an empty block; (usually rambank on some carts); that's ok
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if (data != IntPtr.Zero && length > 0)
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_memoryDomains.Add(MemoryDomain.FromIntPtr(name, length, MemoryDomain.Endian.Little, data));
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}
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private void InitMemoryDomains()
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{
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CreateMemoryDomain(LibGambatte.MemoryAreas.wram, "WRAM");
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CreateMemoryDomain(LibGambatte.MemoryAreas.rom, "ROM");
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CreateMemoryDomain(LibGambatte.MemoryAreas.vram, "VRAM");
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CreateMemoryDomain(LibGambatte.MemoryAreas.cartram, "Cart RAM");
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CreateMemoryDomain(LibGambatte.MemoryAreas.oam, "OAM");
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CreateMemoryDomain(LibGambatte.MemoryAreas.hram, "HRAM");
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// also add a special memory domain for the system bus, where calls get sent directly to the core each time
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_memoryDomains.Add(new MemoryDomain("System Bus", 65536, MemoryDomain.Endian.Little,
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delegate(long addr)
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{
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if (addr < 0 || addr >= 65536)
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throw new ArgumentOutOfRangeException();
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return LibGambatte.gambatte_cpuread(GambatteState, (ushort)addr);
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},
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delegate(long addr, byte val)
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{
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if (addr < 0 || addr >= 65536)
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throw new ArgumentOutOfRangeException();
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LibGambatte.gambatte_cpuwrite(GambatteState, (ushort)addr, val);
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}));
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MemoryDomains = new MemoryDomainList(_memoryDomains);
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(ServiceProvider as BasicServiceProvider).Register<IMemoryDomains>(MemoryDomains);
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}
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}
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}
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