1# Copyright (c) 2010 ARM Limited 2# All rights reserved. 3# 4# The license below extends only to copyright in the software and shall 5# not be construed as granting a license to any other intellectual 6# property including but not limited to intellectual property relating 7# to a hardware implementation of the functionality of the software 8# licensed hereunder. You may use the software subject to the license --- 35 unchanged lines hidden (view full) --- 44from FuncUnit import * 45 46class IntALU(FUDesc): 47 opList = [ OpDesc(opClass='IntAlu') ] 48 count = 6 49 50class IntMultDiv(FUDesc): 51 opList = [ OpDesc(opClass='IntMult', opLat=3), |
52 OpDesc(opClass='IntDiv', opLat=20, pipelined=False) ] |
53 54 # DIV and IDIV instructions in x86 are implemented using a loop which 55 # issues division microops. The latency of these microops should really be 56 # one (or a small number) cycle each since each of these computes one bit 57 # of the quotient. 58 if buildEnv['TARGET_ISA'] in ('x86'): 59 opList[1].opLat=1 |
60 61 count=2 62 63class FP_ALU(FUDesc): 64 opList = [ OpDesc(opClass='FloatAdd', opLat=2), 65 OpDesc(opClass='FloatCmp', opLat=2), 66 OpDesc(opClass='FloatCvt', opLat=2) ] 67 count = 4 68 69class FP_MultDiv(FUDesc): 70 opList = [ OpDesc(opClass='FloatMult', opLat=4), |
71 OpDesc(opClass='FloatDiv', opLat=12, pipelined=False), 72 OpDesc(opClass='FloatSqrt', opLat=24, pipelined=False) ] |
73 count = 2 74 75class SIMD_Unit(FUDesc): 76 opList = [ OpDesc(opClass='SimdAdd'), 77 OpDesc(opClass='SimdAddAcc'), 78 OpDesc(opClass='SimdAlu'), 79 OpDesc(opClass='SimdCmp'), 80 OpDesc(opClass='SimdCvt'), --- 22 unchanged lines hidden (view full) --- 103 opList = [ OpDesc(opClass='MemWrite') ] 104 count = 0 105 106class RdWrPort(FUDesc): 107 opList = [ OpDesc(opClass='MemRead'), OpDesc(opClass='MemWrite') ] 108 count = 4 109 110class IprPort(FUDesc): |
111 opList = [ OpDesc(opClass='IprAccess', opLat = 3, pipelined = False) ] |
112 count = 1 113 |