public Z80() : base()
{
initOpCodes();
m_INHandler = new Dictionary <byte, ReceiveHandler>(10);
m_OUTHandler = new Dictionary <byte, SendHandler>(10);
precalcADCFlags();
precalcSBCFlags();
precalcLogFlags();
precalcRotFlags();
#if CPU_TRACE
m_ei = new CPUExecutionInfo();
m_dis = new Z80_Disassembler();
#endif
}
public static void GenerateOpcodeSizes()
{
Z80_Disassembler disasm = new Z80_Disassembler();
for (int i = 0; i < 256; i++)
{
int pc = 0;
byte[] opcode = { (byte)i, 0, 0, 0 };
disasm.Disassemble(() => opcode[pc++]);
opcodeSizes[0, i] = (sbyte)pc;
}
opcodeSizes[0, 0xCB] = -1;
opcodeSizes[0, 0xED] = -2;
opcodeSizes[0, 0xDD] = -3;
opcodeSizes[0, 0xFD] = -4;
for (int i = 0; i < 256; i++)
{
int pc = 0;
byte[] opcode = { 0xCB, (byte)i, 0, 0, 0 };
disasm.Disassemble(() => opcode[pc++]);
opcodeSizes[1, i] = (sbyte)pc;
}
for (int i = 0; i < 256; i++)
{
int pc = 0;
byte[] opcode = { 0xED, (byte)i, 0, 0, 0 };
disasm.Disassemble(() => opcode[pc++]);
opcodeSizes[2, i] = (sbyte)pc;
}
for (int i = 0; i < 256; i++)
{
int pc = 0;
byte[] opcode = { 0xDD, (byte)i, 0, 0, 0 };
disasm.Disassemble(() => opcode[pc++]);
opcodeSizes[3, i] = (sbyte)pc;
}
opcodeSizes[3, 0xCB] = -5;
opcodeSizes[3, 0xED] = -2;
for (int i = 0; i < 256; i++)
{
int pc = 0;
byte[] opcode = { 0xFD, (byte)i, 0, 0, 0 };
disasm.Disassemble(() => opcode[pc++]);
opcodeSizes[4, i] = (sbyte)pc;
}
opcodeSizes[3, 0xCB] = -6;
opcodeSizes[3, 0xED] = -2;
for (int i = 0; i < 256; i++)
{
int pc = 0;
byte[] opcode = { 0xDD, 0xCB, (byte)i, 0, 0, 0 };
disasm.Disassemble(() => opcode[pc++]);
opcodeSizes[5, i] = (sbyte)pc;
}
for (int i = 0; i < 256; i++)
{
int pc = 0;
byte[] opcode = { 0xFD, 0xCB, (byte)i, 0, 0, 0 };
disasm.Disassemble(() => opcode[pc++]);
opcodeSizes[6, i] = (sbyte)pc;
}
}
