private void UpdateFramerate()
{
VsyncNumerator = 1000000000;
long refresh = (long)LibMAME.mame_lua_get_double(MAMELuaCommand.GetRefresh);
VsyncDenominator = (int)(refresh / 1000000000);
}
private void InitMemoryDomains()
{
var domains = new List <MemoryDomain>();
_systemBusAddressShift = LibMAME.mame_lua_get_int(MAMELuaCommand.GetSpaceAddressShift);
var dataWidth = LibMAME.mame_lua_get_int(MAMELuaCommand.GetSpaceDataWidth) >> 3; // mame returns in bits
var size = (long)LibMAME.mame_lua_get_double(MAMELuaCommand.GetSpaceAddressMask) + dataWidth;
var endianString = MameGetString(MAMELuaCommand.GetSpaceEndianness);
var deviceName = MameGetString(MAMELuaCommand.GetMainCPUName);
//var addrSize = (size * 2).ToString();
MemoryDomain.Endian endian = MemoryDomain.Endian.Unknown;
if (endianString == "little")
{
endian = MemoryDomain.Endian.Little;
}
else if (endianString == "big")
{
endian = MemoryDomain.Endian.Big;
}
var mapCount = LibMAME.mame_lua_get_int(MAMELuaCommand.GetSpaceMapCount);
for (int i = 1; i <= mapCount; i++)
{
var read = MameGetString($"return { MAMELuaCommand.SpaceMap }[{ i }].readtype");
var write = MameGetString($"return { MAMELuaCommand.SpaceMap }[{ i }].writetype");
if (read == "ram" && write == "ram" || read == "rom")
{
var firstOffset = LibMAME.mame_lua_get_int($"return { MAMELuaCommand.SpaceMap }[{ i }].offset");
var lastOffset = LibMAME.mame_lua_get_int($"return { MAMELuaCommand.SpaceMap }[{ i }].endoff");
var name = $"{ deviceName } : { read } : 0x{ firstOffset:X}-0x{ lastOffset:X}";
domains.Add(new MemoryDomainDelegate(name, lastOffset - firstOffset + 1, endian,
delegate(long addr)
{
return(_peek(addr, firstOffset, size));
},
read == "rom" ? (Action <long, byte>) null : delegate(long addr, byte val)
{
_poke(addr, val, firstOffset, size);
},
dataWidth));
}
}
domains.Add(new MemoryDomainDelegate(deviceName + " : System Bus", size, endian,
delegate(long addr)
{
return(_peek(addr, 0, size));
},
null, dataWidth));
_memoryDomains = new MemoryDomainList(domains);
(ServiceProvider as BasicServiceProvider).Register <IMemoryDomains>(_memoryDomains);
}
private void UpdateAspect()
{
int x = (int)LibMAME.mame_lua_get_double(MAMELuaCommand.GetBoundX);
int y = (int)LibMAME.mame_lua_get_double(MAMELuaCommand.GetBoundY);
VirtualHeight = BufferWidth > BufferHeight * x / y
? BufferWidth * y / x
: BufferHeight;
VirtualWidth = VirtualHeight * x / y;
}
private void InitMemoryDomains()
{
var domains = new List <MemoryDomain>();
_systemBusAddressShift = LibMAME.mame_lua_get_int(MAMELuaCommand.GetSpaceAddressShift);
var size = (long)LibMAME.mame_lua_get_double(MAMELuaCommand.GetSpaceAddressMask) + 1;
var dataWidth = LibMAME.mame_lua_get_int(MAMELuaCommand.GetSpaceDataWidth) >> 3; // mame returns in bits
var endianString = MameGetString(MAMELuaCommand.GetSpaceEndianness);
MemoryDomain.Endian endian = MemoryDomain.Endian.Unknown;
if (endianString == "little")
{
endian = MemoryDomain.Endian.Little;
}
else if (endianString == "big")
{
endian = MemoryDomain.Endian.Big;
}
var mapCount = LibMAME.mame_lua_get_int(MAMELuaCommand.GetSpaceMapCount);
for (int i = 1; i <= mapCount; i++)
{
var read = MameGetString($"return { MAMELuaCommand.SpaceMap }[{ i }].readtype");
var write = MameGetString($"return { MAMELuaCommand.SpaceMap }[{ i }].writetype");
if (read == "ram" && write == "ram" /* || read == "rom" */)
{
var firstOffset = LibMAME.mame_lua_get_int($"return { MAMELuaCommand.SpaceMap }[{ i }].offset");
var lastOffset = LibMAME.mame_lua_get_int($"return { MAMELuaCommand.SpaceMap }[{ i }].endoff");
var name = $"{ read.ToUpper() } { firstOffset:X}-{ lastOffset:X}";
domains.Add(new MemoryDomainDelegate(name, lastOffset - firstOffset + 1, endian,
delegate(long addr)
{
if (addr < 0 || addr >= size)
{
throw new ArgumentOutOfRangeException();
}
_memAccess = true;
_mamePeriodicComplete.WaitOne();
addr += firstOffset;
var val = (byte)LibMAME.mame_lua_get_int($"{ MAMELuaCommand.GetSpace }:read_u8({ addr << _systemBusAddressShift })");
_memoryAccessComplete.Set();
_memAccess = false;
return(val);
},
read == "rom" ? (Action <long, byte>) null : delegate(long addr, byte val)
{
if (addr < 0 || addr >= size)
{
throw new ArgumentOutOfRangeException();
}
_memAccess = true;
_mamePeriodicComplete.WaitOne();
addr += firstOffset;
LibMAME.mame_lua_execute($"{ MAMELuaCommand.GetSpace }:write_u8({ addr << _systemBusAddressShift }, { val })");
_memoryAccessComplete.Set();
_memAccess = false;
}, dataWidth));
}
}
domains.Add(new MemoryDomainDelegate("System Bus", size, endian,
delegate(long addr)
{
if (addr < 0 || addr >= size)
{
throw new ArgumentOutOfRangeException();
}
_memAccess = true;
_mamePeriodicComplete.WaitOne();
var val = (byte)LibMAME.mame_lua_get_int($"{ MAMELuaCommand.GetSpace }:read_u8({ addr << _systemBusAddressShift })");
_memoryAccessComplete.Set();
_memAccess = false;
return(val);
},
null, dataWidth));
_memoryDomains = new MemoryDomainList(domains);
(ServiceProvider as BasicServiceProvider).Register <IMemoryDomains>(_memoryDomains);
}