public static void Callm(Cpu cpu, uint rX)
{
var vAddr = cpu.Registers[rX];
var value = cpu.Read(vAddr);
cpu.Call(value);
}
public static void Printm(Cpu cpu, uint rX)
{
var vAddr = cpu.Registers[rX];
var value = cpu.Read(vAddr);
cpu.Print(value);
}
public static void Movmm(Cpu cpu, uint rX, uint rY)
{
var vAddr = cpu.Registers[rY];
var value = cpu.Read(vAddr);
vAddr = cpu.Registers[rX];
cpu.Write(vAddr, value);
}
public static void Cmprm(Cpu cpu, uint rX, uint rY)
{
var vAddr = cpu.Registers[rY];
var lValue = cpu.Registers[rX];
var rValue = cpu.Read(vAddr);
cpu.Sf = (lValue < rValue);
cpu.Zf = (lValue == rValue);
}
private static uint ReadValue(Cpu cpu, OpCodeFlag flag, uint param)
{
switch (flag)
{
case OpCodeFlag.Register:
return(cpu.Registers[param]);
case OpCodeFlag.MemoryAddress:
return(cpu.Read(cpu.Registers[param]));
case OpCodeFlag.Constant:
return(param);
default:
throw new ArgumentOutOfRangeException(nameof(flag));
}
}
public static void Movmr(Cpu cpu, uint rX, uint rY)
{
var vAddr = cpu.Registers[rY];
cpu.Registers[rX] = cpu.Read(vAddr);
}
public static void Callm(Cpu cpu, uint rX)
{
var vAddr = cpu.Registers[rX];
var value = cpu.Read(vAddr);
cpu.Call(value);
}
public static void Printm(Cpu cpu, uint rX)
{
var vAddr = cpu.Registers[rX];
var value = cpu.Read(vAddr);
cpu.Print(value);
}
public static void Movmr(Cpu cpu, uint rX, uint rY)
{
var vAddr = cpu.Registers[rY];
cpu.Registers[rX] = cpu.Read(vAddr);
}
public static void Movmm(Cpu cpu, uint rX, uint rY)
{
var vAddr = cpu.Registers[rY];
var value = cpu.Read(vAddr);
vAddr = cpu.Registers[rX];
cpu.Write(vAddr, value);
}
public static void Cmprm(Cpu cpu, uint rX, uint rY)
{
var vAddr = cpu.Registers[rY];
var lValue = cpu.Registers[rX];
var rValue = cpu.Read(vAddr);
cpu.Sf = (lValue < rValue);
cpu.Zf = (lValue == rValue);
}
private static uint ReadValue(Cpu cpu, OpCodeFlag flag, uint param)
{
switch (flag)
{
case OpCodeFlag.Register:
return cpu.Registers[param];
case OpCodeFlag.MemoryAddress:
return cpu.Read(cpu.Registers[param]);
case OpCodeFlag.Constant:
return param;
default:
throw new ArgumentOutOfRangeException(nameof(flag));
}
}
