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/* 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
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