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_IGET_QUICK.S 18 * 19 * Code: Optimization for iget 20 * 21 * For: iget-quick 22 * 23 * Format: B|A|op CCCC (22c) 24 * 25 * Syntax: op vA, vB, offset@CCCC 26 */ 27 28 movl rINST, %eax # %eax<- BA 29 shr $$4, %eax # %eax<- B 30 and $$15, rINST # rINST<- A 31 GET_VREG %eax # %eax<- vB; object to operate on 32 FETCH 1, %ecx # %ecx<- CCCC; field byte offset 33 cmp $$0, %eax # check if object is null 34 je common_errNullObject # handle null object 35 FFETCH_ADV 2, %edx # %eax<- next instruction hi; fetch, advance 36 movl (%ecx, %eax), %eax # %eax<- object field 37 SET_VREG %eax, rINST # fp[A]<- %eax 38 FGETOP_JMP 2, %edx # jump to next instruction; getop, jmp 39
