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_RSUB_INT_LIT8.S 18 * 19 * Code: 32-bit reverse-subtraction. Uses no substitutions. 20 * 21 * For: rsub-int/lit8 22 * 23 * Description: Perform a reverse subtraction on a register and a 24 * signed extended 8-bit literal value. 25 * 26 * Format: AA|op CC|BB (22b) 27 * 28 * Syntax: op vAA, vBB, #+CC 29 */ 30 31 FETCH_BB 1, %ecx # %ecx<- BB 32 FETCH_CCs 1, %edx # %edx<- +CC, sign-extended literal 33 GET_VREG %ecx # %ecx<- vBB 34 sub %ecx, %edx # %edx<- +CC sub vBB 35 SET_VREG %edx, rINST # vAA<- %edx; result 36 FINISH 2 # jump to next instruction 37
