public string InstructionAsString(int instr, VirtualMachine.InstructionType instrType, int numOperands)
{
string ret = instrType.ToString();
for (int i = 1; i <= numOperands; ++i)
{
ret += " " + OperandAsString(instr, i);
}
return(ret);
}
public string InstructionAsString(int i)
{
int instr = vm.ReadMemory(i);
VirtualMachine.InstructionType instrType = vm.GetInstructionType(instr);
switch (instrType)
{
case VirtualMachine.InstructionType.NOOP:
return(InstructionAsString(instr, instrType, 0));
case VirtualMachine.InstructionType.LD:
return(LdInstructionAsString(instr, instrType));
case VirtualMachine.InstructionType.MOV:
return(InstructionAsString(instr, instrType, 2));
case VirtualMachine.InstructionType.ADD:
return(InstructionAsString(instr, instrType, 3));
case VirtualMachine.InstructionType.SUB:
return(InstructionAsString(instr, instrType, 3));
case VirtualMachine.InstructionType.MUL:
return(InstructionAsString(instr, instrType, 3));
case VirtualMachine.InstructionType.DIV:
return(InstructionAsString(instr, instrType, 3));
case VirtualMachine.InstructionType.GT:
return(InstructionAsString(instr, instrType, 3));
case VirtualMachine.InstructionType.LT:
return(InstructionAsString(instr, instrType, 3));
case VirtualMachine.InstructionType.EQ:
return(InstructionAsString(instr, instrType, 3));
case VirtualMachine.InstructionType.JMP:
return(JmpInstructionAsString(instr, instrType));
}
return(InstructionAsString(instr, instrType, 0));
}
public string JmpInstructionAsString(int instr, VirtualMachine.InstructionType instrType)
{
return(instrType.ToString() + " " + OperandAsString(instr, 1) + " " + vm.GetOperandCondition(2));
}
public string LdInstructionAsString(int instr, VirtualMachine.InstructionType instrType)
{
return(instrType.ToString() + " " + OperandAsString(instr, 1) + " " + vm.GetValue(instr));
}
