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mame system bus

This commit is contained in:
feos 2019-12-22 23:27:33 +03:00
parent e7e30371fe
commit d375b1c2e0
1 changed files with 90 additions and 3 deletions
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93
BizHawk.Emulation.Cores/Arcades/MAME/MAME.cs
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@ -16,7 +16,7 @@ namespace BizHawk.Emulation.Cores.Arcades.MAME
name: "MAME",
author: "MAMEDev",
isPorted: true,
portedVersion: "0.214",
portedVersion: "0.216",
portedUrl: "https://github.com/mamedev/mame.git",
singleInstance: false)]
public partial class MAME : IEmulator, IVideoProvider, ISoundProvider, ISettable<object, MAME.SyncSettings>
@ -67,8 +67,12 @@ namespace BizHawk.Emulation.Cores.Arcades.MAME
private Thread MAMEThread;
private ManualResetEvent MAMEStartupComplete = new ManualResetEvent(false);
private ManualResetEvent MAMEFrameComplete = new ManualResetEvent(false);
private AutoResetEvent MAMEPeriodicComplete = new AutoResetEvent(false);
private AutoResetEvent MemoryAccessComplete = new AutoResetEvent(false);
private SortedDictionary<string, string> fieldsPorts = new SortedDictionary<string, string>();
private IController Controller = NullController.Instance;
private IMemoryDomains _memoryDomains;
private int systemBusAddressShift = 0;
private int[] frameBuffer = new int[0];
private Queue<short> audioSamples = new Queue<short>();
private decimal dAudioSamples = 0;
@ -76,6 +80,7 @@ namespace BizHawk.Emulation.Cores.Arcades.MAME
private bool paused = true;
private bool exiting = false;
private bool frameDone = true;
private bool memAccess = false;
private int numSamples = 0;
private string gameDirectory;
private string gameFilename;
@ -230,6 +235,69 @@ namespace BizHawk.Emulation.Cores.Arcades.MAME
#endregion
#region IMemoryDomains
private void InitMemoryDomains()
{
var domains = new List<MemoryDomain>();
systemBusAddressShift = LibMAME.mame_lua_get_int(MAMELuaCommand.GetSpaceAddressShift);
var size = (long)LibMAME.mame_lua_get_double(MAMELuaCommand.GetSpaceAddressMask) + 1;
var dataWidth = LibMAME.mame_lua_get_int(MAMELuaCommand.GetSpaceDataWidth) >> 3;
IntPtr ptr = LibMAME.mame_lua_get_string(MAMELuaCommand.GetSpaceEndianness, out var lengthInBytes);
string endianString = Marshal.PtrToStringAnsi(ptr, lengthInBytes);
if (!LibMAME.mame_lua_free_string(ptr))
{
Console.WriteLine("LibMAME ERROR: string buffer wasn't freed");
}
MemoryDomain.Endian endian = MemoryDomain.Endian.Unknown;
if (endianString == "little")
{
endian = MemoryDomain.Endian.Little;
}
else if (endianString == "big")
{
endian = MemoryDomain.Endian.Big;
}
domains.Add(new MemoryDomainDelegate("System Bus", size, endian,
delegate (long addr)
{
if (addr < 0 || addr >= size)
{
throw new ArgumentOutOfRangeException();
}
memAccess = true;
MAMEPeriodicComplete.WaitOne();
var val = (byte)LibMAME.mame_lua_get_int(MAMELuaCommand.GetSpace + $":read_u8({ addr << systemBusAddressShift })");
MemoryAccessComplete.Set();
memAccess = false;
return val;
},
delegate (long addr, byte val)
{
if (addr < 0 || addr >= size)
{
throw new ArgumentOutOfRangeException();
}
memAccess = true;
MAMEPeriodicComplete.WaitOne();
LibMAME.mame_lua_execute(MAMELuaCommand.GetSpace + $":write_u8({ addr << systemBusAddressShift }, { val })");
MemoryAccessComplete.Set();
memAccess = false;
}, dataWidth));
_memoryDomains = new MemoryDomainList(domains);
(ServiceProvider as BasicServiceProvider).Register<IMemoryDomains>(_memoryDomains);
}
#endregion
#region Launchers
private void AsyncLaunchMAME()
@ -419,8 +487,15 @@ namespace BizHawk.Emulation.Cores.Arcades.MAME
LibMAME.mame_lua_execute(MAMELuaCommand.Exit);
exiting = false;
}
if (memAccess)
{
MAMEPeriodicComplete.Set();
MemoryAccessComplete.WaitOne();
return;
}
int MAMEFrame = LibMAME.mame_lua_get_int(MAMELuaCommand.GetFrameNumber);
//int MAMEFrame = LibMAME.mame_lua_get_int(MAMELuaCommand.GetFrameNumber);
if (!paused)
{
@ -473,13 +548,20 @@ namespace BizHawk.Emulation.Cores.Arcades.MAME
GetInputFields();
Update();
UpdateGameName();
InitMemoryDomains();
MAMEStartupComplete.Set();
}
private void MAMELogCallback(LibMAME.OutputChannel channel, int size, string data)
{
// mame sends osd_output_channel casted to int, we implicitly cast is back
if (data.Contains("NOT FOUND"))
{
MAMEStartupComplete.Set();
throw new Exception(data);
}
// mame sends osd_output_channel casted to int, we implicitly cast it back
if (!data.Contains("pause = "))
{
Console.WriteLine(
@ -549,6 +631,11 @@ namespace BizHawk.Emulation.Cores.Arcades.MAME
public const string GetRefresh = "return select(2, next(manager:machine().screens)):refresh_attoseconds()";
public const string GetWidth = "return (select(1, manager:machine():video():size()))";
public const string GetHeight = "return (select(2, manager:machine():video():size()))";
public const string GetSpace = "return manager:machine().devices[\":maincpu\"].spaces[\"program\"]";
public const string GetSpaceAddressMask = "return manager:machine().devices[\":maincpu\"].spaces[\"program\"].address_mask";
public const string GetSpaceAddressShift = "return manager:machine().devices[\":maincpu\"].spaces[\"program\"].shift";
public const string GetSpaceDataWidth = "return manager:machine().devices[\":maincpu\"].spaces[\"program\"].data_width";
public const string GetSpaceEndianness = "return manager:machine().devices[\":maincpu\"].spaces[\"program\"].endianness";
public const string GetBoundX =
"local x0,x1,y0,y1 = manager:machine():render():ui_target():view_bounds() " +
"return x1-x0";