| /* 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: binopS2addr.S | |
| * | |
| * Code: Generic 32-bit "/2addr" binary operation. Provides an | |
| * "instr" line to specify an instruction that performs | |
| * "%edx = %edx op %cl". | |
| * | |
| * For: shl-int/2addr, shr-int/2addr, ushr-int/2addr | |
| * | |
| * Description: Perform a binary operation on two sources registers | |
| * and store the result in the first source register | |
| * | |
| * Format: B|A|op (12x) | |
| * | |
| * Syntax: op vA, vB | |
| */ | |
| movl rINST, %ecx # %ecx<- BA | |
| shr $$4, %ecx # %ecx<- B | |
| andl $$15, rINST # rINST<- A | |
| movl rINST, %edx # %edx<- A | |
| FFETCH_ADV 1, %eax # %ecx<- next instruction hi; fetch, advance | |
| GET_VREG %ecx # %ecx<- vB | |
| GET_VREG %edx # %edx<- vA | |
| $instr # %edx<- vA op vB | |
| SET_VREG %edx, rINST # vAA<- %edx; result | |
| FGETOP_JMP 1, %eax # jump to next instruction; getop, jmp |