protected int Jmp(int opcode)
{
IOperand op = cpu.ResolveSrcEA((opcode >> 3) & 0x07, (opcode & 0x07), Size.SizeLong);
cpu.SetPC(op.GetComputedAddress());
return(TIMING[op.Index()]);
}
protected int Lea(int opcode)
{
IOperand src = cpu.ResolveSrcEA((opcode >> 3) & 0x07, opcode & 0x07, Size.SizeLong);
cpu.SetAddrRegisterLong((opcode >> 9) & 0x07, src.GetComputedAddress());
return(TIMING[src.Index()]);
}
protected int Pea(int opcode)
{
IOperand src = cpu.ResolveSrcEA((opcode >> 3) & 0x07, opcode & 0x07, Size.SizeLong);
cpu.PushLong(src.GetComputedAddress());
return(TIMING[src.Index()]);
}
protected int MovemWordR2m(int opcode)
{
int reglist = cpu.FetchPCWord();
IOperand dst = cpu.ResolveDstEA((opcode >> 3) & 0x07, opcode & 0x07, Size.Word);
int address = dst.GetComputedAddress();
int count;
if (((opcode >> 3) & 0x07) == 4)
{
count = PutMultipleWordPreDec(opcode & 0x07, reglist, address);
}
else
{
count = PutMultipleWord(reglist, address);
}
return(R2M_Timing[dst.Index()] + (count << 2));
}
protected int MovemWordM2r(int opcode)
{
int reglist = cpu.FetchPCWord();
IOperand src = cpu.ResolveSrcEA((opcode >> 3) & 0x07, opcode & 0x07, Size.Word);
int address = src.GetComputedAddress();
int count;
if (((opcode >> 3) & 0x07) == 3)
{
count = GetMultipleWordPostInc(opcode & 0x07, reglist, address);
}
else
{
count = GetMultipleWord(reglist, address);
}
return(M2R_Timing[src.Index()] + (count << 2));
}
protected int Jsr(int opcode)
{
int mode = (opcode >> 3) & 0x07;
int reg = (opcode & 0x07);
IOperand op = cpu.ResolveSrcEA(mode, reg, Size.SizeLong);
cpu.PushLong(cpu.GetPC());
cpu.SetPC(op.GetComputedAddress());
int idx;
if (mode == 7)
{
idx = mode + reg;
}
else
{
idx = mode;
}
return(TIMING[idx]);
}