private void CreateMemoryDomain(LibGambatte.MemoryAreas which, string name)
{
IntPtr data = IntPtr.Zero;
int length = 0;
if (!LibGambatte.gambatte_getmemoryarea(GambatteState, which, ref data, ref length))
{
throw new Exception($"{nameof(LibGambatte.gambatte_getmemoryarea)}() failed!");
}
// if length == 0, it's an empty block; (usually rambank on some carts); that's ok
if (data != IntPtr.Zero && length > 0)
{
_memoryDomains.Add(new MemoryDomainIntPtr(name, MemoryDomain.Endian.Little, data, length, true, 1));
}
}
unsafe void CreateMemoryDomain(LibGambatte.MemoryAreas which, string name)
{
IntPtr data = IntPtr.Zero;
int length = 0;
if (!LibGambatte.gambatte_getmemoryarea(GambatteState, which, ref data, ref length))
{
throw new Exception("gambatte_getmemoryarea() failed!");
}
// if length == 0, it's an empty block; (usually rambank on some carts); that's ok
// TODO: when length == 0, should we simply not add the memory domain at all?
if (data == IntPtr.Zero && length > 0)
{
throw new Exception("bad return from gambatte_getmemoryarea()");
}
byte *ptr = (byte *)data;
_MemoryDomains.Add(new MemoryDomain(name, length, MemoryDomain.Endian.Little,
delegate(int addr)
{
if (addr < 0 || addr >= length)
{
throw new ArgumentOutOfRangeException();
}
return(ptr[addr]);
},
delegate(int addr, byte val)
{
if (addr < 0 || addr >= length)
{
throw new ArgumentOutOfRangeException();
}
ptr[addr] = val;
}));
}
