/* 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_SHL_LONG_2ADDR.S * * Code: Performs a shift left long. Uses no substitutions. * * For: shl-long/2addr * * Description: Perform a binary shift operation using two source registers * where the fist is the value to shift and the second is the * shift amount. Store the result in the first source register. * * Format: B|A|op (12x) * * Syntax: op vA, vB */ movl rINST, %edx # %edx<- BA shr $$4, %edx # %edx<- B andl $$15, rINST # rINST<- A movss (rFP, %edx, 4), %xmm0 # %xmm0<- vB movq (rFP, rINST, 4), %xmm1 # %xmm1<- vA movq .LshiftMask, %xmm2 # %xmm2<- mask for the shift bits pand %xmm2, %xmm0 # %xmm0<- masked shift bits psllq %xmm0, %xmm1 # %xmm1<- shifted vA movq %xmm1, (rFP, rINST, 4) # vA<- shifted vA FINISH 1 # jump to next instruction