public static CpuState Execute(CpuState state)
{
var output = new StringBuilder(16384);
var result = Run(state.ToString(), output);
return(CpuState.FromString(output.ToString()));
}
private CpuState GenerateRandomState(byte op, ushort pc, bool isCbInstruction = false)
{
var state = new CpuState
{
A = (byte)_r.Next(0, 256),
B = (byte)_r.Next(0, 256),
C = (byte)_r.Next(0, 256),
D = (byte)_r.Next(0, 256),
E = (byte)_r.Next(0, 256),
H = (byte)_r.Next(0, 256),
L = (byte)_r.Next(0, 256),
SP = (ushort)_r.Next(0, 65536),
PC = pc,
FZ = _r.Next() % 2 == 0,
FN = _r.Next() % 2 == 0,
FH = _r.Next() % 2 == 0,
FC = _r.Next() % 2 == 0,
IME = _r.Next() % 2 == 0
};
var startAddress = isCbInstruction ? (ushort)(pc + 1) : pc;
if (isCbInstruction)
{
state.Memory.Add(new MemoryRecord {
Address = pc, Value = 0xCB
});
}
state.Memory.Add(new MemoryRecord {
Address = startAddress, Value = op
});
var nextAddress = (ushort)(startAddress + 1);
for (ushort i = nextAddress; i < 1024; i++)
{
state.Memory.Add(new MemoryRecord {
Address = i, Value = (byte)_r.Next(0, 256)
});
}
return(state);
}
private CpuState GenerateRandomState(byte op, ushort pc, bool isCbInstruction = false)
{
var state = new CpuState
{
A = (byte)_r.Next(0, 256),
B = (byte)_r.Next(0, 256),
C = (byte)_r.Next(0, 256),
D = (byte)_r.Next(0, 256),
E = (byte)_r.Next(0, 256),
H = (byte)_r.Next(0, 256),
L = (byte)_r.Next(0, 256),
SP = (ushort)_r.Next(0, 65536),
PC = pc,
FZ = _r.Next() % 2 == 0,
FN = _r.Next() % 2 == 0,
FH = _r.Next() % 2 == 0,
FC = _r.Next() % 2 == 0,
IME = _r.Next() % 2 == 0
};
var startAddress = isCbInstruction ? (ushort)(pc + 1) : pc;
if (isCbInstruction)
{
state.Memory.Add(new MemoryRecord { Address = pc, Value = 0xCB });
}
state.Memory.Add(new MemoryRecord { Address = startAddress, Value = op });
var nextAddress = (ushort)(startAddress + 1);
for (ushort i = nextAddress; i < 1024; i++)
{
state.Memory.Add(new MemoryRecord { Address = i, Value = (byte)_r.Next(0, 256) });
}
return state;
}
private CpuState Test(CpuState cpuState)
{
var mem = new Dictionary<ushort, byte>();
foreach (var m in cpuState.Memory)
{
mem.Add(m.Address, m.Value);
}
var read = new FakesDelegates.Func<ushort, byte>(a =>
{
if (!mem.ContainsKey(a))
{
return 0; // Only writes allocate memory
}
return mem[a];
});
var readW = new FakesDelegates.Func<ushort, ushort>(a =>
{
var hi = read(a);
var lo = read((ushort)(a + 1));
return (ushort)((hi << 8) | lo);
});
var mmu = new StubIMmu();
mmu.ReadByteUInt16 = read;
mmu.ReadWordUInt16 = readW;
mmu.WriteByteUInt16Byte = (a, v) =>
{
mem[a] = v;
};
mmu.WriteWordUInt16UInt16 = (a, v) =>
{
mem[a] = (byte)((v & 0xFF00) >> 8);
mem[(ushort)(a + 1)] = (byte)(v & 0xFF);
};
var cpu = new TestCpu(mmu,
cpuState.A, cpuState.B, cpuState.C,
cpuState.D, cpuState.E, cpuState.H,
cpuState.L, cpuState.SP, cpuState.PC,
cpuState.FZ, cpuState.FN, cpuState.FH,
cpuState.FC, cpuState.IME);
cpu.Step();
return new CpuState
{
A = cpu.A,
B = cpu.B,
C = cpu.C,
D = cpu.D,
E = cpu.E,
H = cpu.H,
L = cpu.L,
SP = cpu.SP,
PC = cpu.PC,
FZ = cpu.FZ,
FN = cpu.FN,
FH = cpu.FH,
FC = cpu.FC,
IME = cpu.IME,
Memory = mem.Keys.OrderBy(k => k).Select(k =>
{
var v = mem[k];
return new MemoryRecord
{
Address = k,
Value = v
};
}).ToList()
};
}
public static CpuState Execute(CpuState state)
{
var output = new StringBuilder(16384);
var result = Run(state.ToString(), output);
return CpuState.FromString(output.ToString());
}
private CpuState Test(CpuState cpuState)
{
var mem = new Dictionary <ushort, byte>();
foreach (var m in cpuState.Memory)
{
mem.Add(m.Address, m.Value);
}
var read = new FakesDelegates.Func <ushort, byte>(a =>
{
if (!mem.ContainsKey(a))
{
return(0); // Only writes allocate memory
}
return(mem[a]);
});
var readW = new FakesDelegates.Func <ushort, ushort>(a =>
{
var hi = read(a);
var lo = read((ushort)(a + 1));
return((ushort)((hi << 8) | lo));
});
var mmu = new StubIMmu();
mmu.ReadByteUInt16 = read;
mmu.ReadWordUInt16 = readW;
mmu.WriteByteUInt16Byte = (a, v) =>
{
mem[a] = v;
};
mmu.WriteWordUInt16UInt16 = (a, v) =>
{
mem[a] = (byte)((v & 0xFF00) >> 8);
mem[(ushort)(a + 1)] = (byte)(v & 0xFF);
};
var cpu = new TestCpu(mmu,
cpuState.A, cpuState.B, cpuState.C,
cpuState.D, cpuState.E, cpuState.H,
cpuState.L, cpuState.SP, cpuState.PC,
cpuState.FZ, cpuState.FN, cpuState.FH,
cpuState.FC, cpuState.IME);
cpu.Step();
return(new CpuState
{
A = cpu.A,
B = cpu.B,
C = cpu.C,
D = cpu.D,
E = cpu.E,
H = cpu.H,
L = cpu.L,
SP = cpu.SP,
PC = cpu.PC,
FZ = cpu.FZ,
FN = cpu.FN,
FH = cpu.FH,
FC = cpu.FC,
IME = cpu.IME,
Memory = mem.Keys.OrderBy(k => k).Select(k =>
{
var v = mem[k];
return new MemoryRecord
{
Address = k,
Value = v
};
}).ToList()
});
}