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
39
40