| /* 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_APUT.S |
| * |
| * Code: Generic 32-bit array put operation. Provides a "scale" variable |
| * to specify a scale value which depends on the width of the array |
| * elements. Provides a "mov" variable which determines the type of |
| * move performed also dependent on the type of the array element. |
| * Provides a "value" register to specify the source of the move |
| * |
| * For: aput-boolean, aput-byte, aput-char, aput-object, aput-short |
| * |
| * Description: Perform an array put operation from the value register; |
| * store the value register at the identified index of a |
| * given array. vBB[vCC] <- vAA |
| * |
| * Format: AA|op CC|BB (23x) |
| * |
| * Syntax: op vAA, vBB, vCC |
| */ |
| |
| %default { "mov":"l","scale":"4", "value": "rINST"} |
| |
| FETCH_BB 1, %ecx # %ecx<- BB |
| FETCH_CC 1, %edx # %edx<- CC |
| GET_VREG %ecx # %ecx<- vBB |
| GET_VREG %edx # %edx<- vCC |
| cmp $$0, %ecx # check for null array object |
| je common_errNullObject # handle null array object |
| cmp offArrayObject_length(%ecx), %edx # compare index to arrayObj->length |
| jnc common_errArrayIndex # handle index >= length, bail |
| FFETCH_ADV 2, %eax # %eax<- next instruction hi; fetch, advance |
| lea (%ecx, %edx, $scale), %ecx # %ecx<- &vBB[vCC] |
| GET_VREG rINST # rINST<- vAA |
| mov$mov $value, offArrayObject_contents(%ecx) # vBB[vCC]<- rINSTx; value |
| FGETOP_JMP 2, %eax # jump to next instruction; getop, jmp |
