dioscuri.module.cpu
Class Instruction_DAA

java.lang.Object
  dioscuri.module.cpu.Instruction_DAA

All Implemented Interfaces:

Instruction

public class Instruction_DAA
extends java.lang.Object
implements Instruction

Intel opcode 27
DAA - Decimal adjust AL after addition.
This instruction adjusts the sum of two packed BCD values to create a packed BCD result. The AL register is the implied source and destination operand. Flags modified: AF, CF, SF, ZF and PF.

Constructor Summary

Instruction_DAA()
Class constructor

Instruction_DAA(CPU processor)
Class constructor specifying processor reference

Method Summary

void	execute() This instruction adjusts the sum of two packed BCD values to create a packed BCD result.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

Instruction_DAA

public Instruction_DAA()

Class constructor

Instruction_DAA

public Instruction_DAA(CPU processor)

Class constructor specifying processor reference

Parameters:

processor - Reference to CPU class

Method Detail

execute

public void execute()

This instruction adjusts the sum of two packed BCD values to create a packed BCD result. The AL register is the implied source and destination operand.

Specified by:

execute in interface Instruction