| /* 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: unop.S |
| * |
| * Code: Generic 32-bit unary operation. Provide an "instr" variable and a |
| * preinstr variable that together specify an instruction that |
| * performs, for example, "%ecx = op %edx". |
| * |
| * For: int-to-byte, int-to-char, int-to-short, neg-float, neg-int, not-int |
| * |
| * Description: Perform the identified unary operation on the source |
| * register, storing the result in the destination register |
| * |
| * Format: B|A|op (12x) |
| * |
| * Syntax: op vA, vB |
| */ |
| |
| %default {"preinstr":"", "instr":""} |
| |
| movl rINST, %ecx # %ecx<- BA+ |
| shr $$4, %ecx # %ecx<- B |
| and $$15, rINST # rINST<- A |
| FFETCH_ADV 1, %eax # %eax<- next instruction hi; fetch, advance |
| GET_VREG %ecx # %ecx<- vB |
| $preinstr # do operation part 1 |
| $instr # do operation part 2 |
| SET_VREG %ecx, rINST # vA<- result |
| FGETOP_JMP 1, %eax # jump to next instruction; getop, jmp |
