funcunit.py

来自「linux下基于c++的处理器仿真平台。具有处理器流水线」· Python 代码 · 共 42 行

from m5 import *
class IntALU(FUDesc):
    opList = [ OpDesc(opClass='IntAlu') ]
    count = 8

class IntMultDiv(FUDesc):
    opList = [ OpDesc(opClass='IntMult', opLat=3),
               OpDesc(opClass='IntDiv', opLat=20, issueLat=19) ]
    count=4

class FP_ALU(FUDesc):
    opList = [ OpDesc(opClass='FloatAdd', opLat=2),
               OpDesc(opClass='FloatCmp', opLat=2),
               OpDesc(opClass='FloatCvt', opLat=2) ]
    count = 4

class FP_MultDiv(FUDesc):
    opList = [ OpDesc(opClass='FloatMult', opLat=4),
               OpDesc(opClass='FloatDiv', opLat=12, issueLat=12),
               OpDesc(opClass='FloatSqrt', opLat=24, issueLat=24) ]
    count = 4

class ReadPort(FUDesc):
    opList = [ OpDesc(opClass='MemRead') ]
    count = 0

class WritePort(FUDesc):
    opList = [ OpDesc(opClass='MemWrite') ]
    count = 0

class RdWrPort(FUDesc):
    opList = [ OpDesc(opClass='MemRead'), OpDesc(opClass='MemWrite') ]
    count = 4

class IprPort(FUDesc):
    opList = [ OpDesc(opClass='IprAccess', opLat = 3, issueLat = 3) ]
    count = 1

class DefaultFUP(FuncUnitPool):
    FUList = [ IntALU(), IntMultDiv(), FP_ALU(), FP_MultDiv(),
               ReadPort(), WritePort(), RdWrPort(), IprPort() ]