dioscuri.module.cpu
Class Instruction_ShiftGRP2_EvIb

java.lang.Object
  dioscuri.module.cpu.Instruction_ShiftGRP2_EvIb

All Implemented Interfaces:

Instruction

public class Instruction_ShiftGRP2_EvIb
extends java.lang.Object
implements Instruction

Intel opcode C1
Immediate Group 2 opcode extension: ROL, ROR, RCL, RCR, SHL/SAL, SHR, SAR.
Performs the selected instruction (indicated by bits 5, 4, 3 of the ModR/M byte) using immediate byte.
Flags modified: depending on instruction can be any of: OF, SF, ZF, AF, PF, CF

Constructor Summary

Instruction_ShiftGRP2_EvIb()
Class constructor

Instruction_ShiftGRP2_EvIb(CPU processor)
Class constructor specifying processor reference

Method Summary

void	execute() Execute any of the following Immediate Group 2 instructions: ROL, ROR, RCL, RCR, SHL/SAL, SHR, SAR.

Methods inherited from class java.lang.Object

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

Constructor Detail

Instruction_ShiftGRP2_EvIb

public Instruction_ShiftGRP2_EvIb()

Class constructor

Instruction_ShiftGRP2_EvIb

public Instruction_ShiftGRP2_EvIb(CPU processor)

Class constructor specifying processor reference

Parameters:

processor - Reference to CPU class

Method Detail

execute

public void execute()
             throws CPUInstructionException

Execute any of the following Immediate Group 2 instructions: ROL, ROR, RCL, RCR, SHL/SAL, SHR, SAR.

Specified by:

execute in interface Instruction

Throws:

CPUInstructionException