1 /* Copyright (C) 2008 The Android Open Source Project 2 * 3 * Licensed under the Apache License, Version 2.0 (the "License"); 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software 10 * distributed under the License is distributed on an "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 * See the License for the specific language governing permissions and 13 * limitations under the License. 14 */ 15 16 /* 17 * File: OP_AGET_WIDE.S 18 * 19 * Code: 64-bit array get operation. 20 * 21 * For: aget-wide 22 * 23 * Description: Perform an array get operation at the identified index 24 * of a given array; load the array value into the destination 25 * register. vAA <- vBB[vCC]. 26 * 27 * Format: AA|op CC|BB (23x) 28 * 29 * Syntax: op vAA, vBB, vCC 30 */ 31 32 FETCH_BB 1, %ecx # %ecx<- BB 33 FETCH_CC 1, %edx # %edx<- CC 34 GET_VREG %ecx # %ecx<- vBB 35 GET_VREG %edx # %edx<- vCC 36 cmp $$0, %ecx # check for null array object 37 je common_errNullObject # handle null array object 38 cmp offArrayObject_length(%ecx), %edx # compare index to arrayObj->length 39 jnc common_errArrayIndex # handle index >= length, bail 40 FFETCH_ADV 2, %eax # %eax<- next instruction hi; fetch, advance 41 movq offArrayObject_contents(%ecx, %edx, 8), %xmm0 # %xmm0<- vBB[vCC] 42 movq %xmm0, (rFP, rINST, 4) # vAA<- %xmm0; value 43 FGETOP_JMP 2, %eax # jump to next instruction; getop, jmp 44
