dioscuri.module.cpu
Class Instruction_CMP_GvEv

java.lang.Object
  dioscuri.module.cpu.Instruction_CMP_GvEv

All Implemented Interfaces:

Instruction

public class Instruction_CMP_GvEv
extends java.lang.Object
implements Instruction

Intel opcode 3B
Word-sized comparison (SUB) of register ("destination") with memory/register (source).
The addressbyte determines the source (rrr bits) and "destination" (sss bits).
Flags modified: OF, SF, ZF, AF, PF, CF

Constructor Summary

Instruction_CMP_GvEv()
Class constructor

Instruction_CMP_GvEv(CPU processor)
Class constructor specifying processor reference

Method Summary

void	execute() Word-sized comparison (SUB) of register ("destination") with memory/register (source). Does not update any registers, only sets appropriate flags.

Methods inherited from class java.lang.Object

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

Constructor Detail

Instruction_CMP_GvEv

public Instruction_CMP_GvEv()

Class constructor

Instruction_CMP_GvEv

public Instruction_CMP_GvEv(CPU processor)

Class constructor specifying processor reference

Parameters:

processor - Reference to CPU class

Method Detail

execute

public void execute()

Word-sized comparison (SUB) of register ("destination") with memory/register (source).
Does not update any registers, only sets appropriate flags.

Specified by:

execute in interface Instruction