/// <summary>
/// Adds contents of rs to signed 16bit value and store in rt. Trap if overflow is detected.
/// Also saves the state of rt before changing it so it may be undone.
/// </summary>
/// <param name="chip"></param>
public void doOp(MIPSChip_Instance chip)
{
lastRt = chip.getRegister(rt);
try {
UInt32 temp = (UInt32) checked ((Int32)chip.getRegister(rs) + (Int32)immediate);
chip.setRegister(rt, temp);
} catch (OverflowException) {
chip.interrupt();
}
}
/// <summary>
/// Adds contents of rs to contents of rt and store in rd. Trap if overflow is detected.
/// Also saves the state of rd before changing it so it may be undone.
/// </summary>
/// <param name="chip"></param>
public void doOp(MIPSChip_Instance chip)
{
this.lastRd = chip.getRegister(this.rd);
try {
UInt32 temp = (UInt32) checked ((Int32)chip.getRegister(rs) + (Int32)chip.getRegister(rt));
chip.setRegister(rd, temp);
} catch (OverflowException) {
chip.interrupt();
}
}
