public void SetExecutionPath(int currentinstruction)
{
if ((InstructionDecoder.is_r_format(currentinstruction)) &&
((InstructionDecoder.rfunct(currentinstruction) == InstructionType.Subtract) ||
InstructionDecoder.rfunct(currentinstruction) == InstructionType.Add))
{
_regDestination = 1;
_ALUOp = 10;
_ALUSrc = 0;
_MemRead = 0;
_MemWrite = 0;
_RegWrite = 1;
_MemToReg = 0;
}
else if (InstructionDecoder.getOPcode(currentinstruction) == InstructionType.LoadByte)
{
_regDestination = 0;
_ALUOp = 0;
_ALUSrc = 1;
_MemRead = 1;
_MemWrite = 0;
_RegWrite = 1;
_MemToReg = 1;
}
else if (InstructionDecoder.getOPcode(currentinstruction) == InstructionType.StoreByte)
{
_regDestination = 0;
_ALUOp = 0;
_ALUSrc = 1;
_MemRead = 0;
_MemWrite = 1;
_RegWrite = 0;
_MemToReg = 0;
}
else
{
_regDestination = 0;
_ALUOp = 0;
_ALUSrc = 0;
_MemRead = 0;
_MemWrite = 0;
_RegWrite = 0;
_MemToReg = 0;
}
}