/* Copyright (C) 2008 The Android Open Source Project * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ /* * File: OP_USHR_LONG.S * * Code: Performs an unsigned shift right long operation. Uses no substitutions. * * For: ushr-long * * Description: Perform a binary shift operation using two source registers * where one is the shift amount and the other is the value to shift. * * Format: AA|op CC|BB (23x) * * Syntax: op vAA, vBB, vCC */ FETCH_CC 1, %eax # %eax<- CC FETCH_BB 1, %edx # %edx<- BB movsd .LshiftMask, %xmm2 # %xmm2<- mask for the shift bits movss (rFP, %eax, 4), %xmm0 # %xmm0<- vCC pand %xmm2, %xmm0 # %xmm0<- masked shift bits movsd (rFP, %edx, 4), %xmm1 # %xmm1<- vBB psrlq %xmm0, %xmm1 # %xmm1<- shifted vBB movsd %xmm1, (rFP, rINST, 4) # vAA<- shifted vBB FINISH 2 # jump to next instruction