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_IPUT_QUICK.S 18 * Code: Optimization for iput 19 * 20 * For: iput-quick 21 * 22 * Format: B|A|op CCCC (22c) 23 * 24 * Syntax: op vA, vB, offset@CCCC 25 */ 26 27 movl rINST, %eax # %eax<- BA 28 shr $$4, %eax # %eax<- B 29 and $$15, rINST # rINST<- A 30 GET_VREG %eax # %eax<- vB; object to operate on 31 FETCH 1, %ecx # %ecx<- CCCC; field byte offset 32 cmp $$0, %eax # check if object is null 33 je common_errNullObject # handle null object 34 FFETCH_ADV 2, %edx # %edx<- next instruction hi; fetch, advance 35 GET_VREG rINST # rINST<- vA 36 movl rINST, (%eax, %ecx) # object field<- vA 37 FGETOP_JMP 2, %edx # jump to next instruction; getop, jmp 38
