com.cmpware.cmp
Class HardNode

java.lang.Object
  com.cmpware.cmp.Memory
      com.cmpware.cmp.Processor
          com.cmpware.cmp.HardNode

All Implemented Interfaces:

ReadWriteInterface

Direct Known Subclasses:

HardNodeDemo

public abstract class HardNode
extends Processor

This implements a hardwired node. Note that this node may or may not contain memory and registers. This is simply a node that does not execute tradional instructions.

Copyright (c) 2004 Cmpware, Inc. All Rights Reserved.

Author:

SAG

Field Summary

static java.lang.String

copyright Copyright string

Fields inherited from class com.cmpware.cmp.Processor

bkpt, branchAddr, branchDelay, breakpointHit, currentBranchDelay, currentInstr, currentInstrCode, cycleCount, elf, idlePower, iMix, instructionSize, name, noop, pc, prevInstr, prevInstrCode, r, runningPower, sr, stall, stallCount

Fields inherited from class com.cmpware.cmp.Memory

BIG, LITTLE

Constructor Summary

HardNode()
The constructor

Method Summary

java.lang.String	dasm(byte[] instr) This method disassembles an instruction.
int	decode(int instr) A unique code identifying the instruction is returned by this method.
int	getPC() This method returns the current Program Counter.
void	setPC(int pc) This method sets the current Program Counter.

Methods inherited from class com.cmpware.cmp.Processor

advancePC, branch, branchNoDelay, defineBranchDelay, defineBreakpoint, defineInstructionSize, defineName, defineNoop, defineOpcodeNames, defineRegisterNames, defineRegisters, defineSpecialRegisterNames, defineSpecialRegisters, execute, fetch, get, getBreakpoint, getBreakpointData, getBreakpoints, getCycleCount, getDebugRegisters, getElf, getIdlePower, getInstruction, getInstructionMix, getInstructionSize, getName, getNoop, getOpcodeNames, getRegister, getRegisterNames, getRegisters, getRunningPower, getSpecialRegister, getSpecialRegisterNames, getSpecialRegisters, getStallCount, isBreakpoint, isStalled, load, postLoad, removeAllBreakpoints, removeBreakpoint, reset, setBreakpoint, setIdlePower, setRegister, setRunningPower, setSpecialRegister, stall, statistics, step

Methods inherited from class com.cmpware.cmp.Memory

addInput, addMemory, addOutput, getEndian, getLocalMemory, getMemoryManager, getMmio, getProfile, hexDump, hexDump, isReadable, isValidAddress, isWriteable, profile, read, read, read16, read24, read32, read64, removeMemory, resize, setEndian, size, toInt, toShort, write, write, write16, write24, write32, write64

Methods inherited from class java.lang.Object

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

Field Detail

copyright

public static final java.lang.String copyright

Copyright string

See Also:

Constant Field Values

Constructor Detail

HardNode

public HardNode()

The constructor

Method Detail

decode

public int decode(int instr)
           throws IllegalOpcodeException

Description copied from class: Processor

A unique code identifying the instruction is returned by this method. In some processors with simple fixed-field opcodes this may be a very simple method to define. Other architectures with more complex decoding will require a more complex implementation.

Specified by:

decode in class Processor

Parameters:

instr - The instruction to be decoded.

Returns:

A unique code identifying the instruction is returned by this method.

Throws:

IllegalOpcodeException - if an illegal opcode is encountered.

getPC

public int getPC()

Description copied from class: Processor

This method returns the current Program Counter.

Specified by:

getPC in class Processor

Returns:

This method returns the current Program Counter.

setPC

public void setPC(int pc)

Description copied from class: Processor

This method sets the current Program Counter.

Specified by:

setPC in class Processor

dasm

public java.lang.String dasm(byte[] instr)

Description copied from class: Processor

This method disassembles an instruction. Note that a byte array is provided as the interface. This is to make this method as generic as possible.

Specified by:

dasm in class Processor

Parameters:

instr - The instruction to be disassembled.

Returns:

This method returns the disassembled instruction.