dioscuri.module.cpu
Class Instruction_CMP_EbGb

java.lang.Object
  dioscuri.module.cpu.Instruction_CMP_EbGb

All Implemented Interfaces:

Instruction

public class Instruction_CMP_EbGb
extends java.lang.Object
implements Instruction

Intel opcode 38
Byte-sized comparison (SUB) of memory/register ("destination") with 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_EbGb()
Class constructor

Instruction_CMP_EbGb(CPU processor)
Class constructor specifying processor reference

Method Summary

void	execute() Byte-sized comparison (SUB) of memory/register with register. 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_EbGb

public Instruction_CMP_EbGb()

Class constructor

Instruction_CMP_EbGb

public Instruction_CMP_EbGb(CPU processor)

Class constructor specifying processor reference

Parameters:

processor - Reference to CPU class

Method Detail

execute

public void execute()

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

Specified by:

execute in interface Instruction