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: binopLit8S.S 18 * 19 * Code: 32-bit "lit8" divide operation. Provides an "instr" line 20 * to specify an instruction that performs "%edx = %edx op %cl" 21 * 22 * 23 * For: shl-int/lit8, shr-int/lit8, ushr-int/lit8 24 * 25 * 26 * Description: Perform a binary operation on a register and a 27 * signed extended 8-bit literal value 28 * 29 * Format: AA|op CC|BB (22b) 30 * 31 * Syntax: op vAA, vBB, #+CC 32 */ 33 34 FETCH_BB 1, %edx # %edx<- BB 35 FETCH_CCs 1, %ecx # %ecx<- +CC, sign-extended literal 36 FFETCH_ADV 2, %eax # %eax<- next instruction hi; fetch, advance 37 GET_VREG %edx # %edx<- vBB 38 $instr # %edx<- vBB op +CC 39 SET_VREG %edx, rINST # vAA<- %edx; result 40 FGETOP_JMP 2, %eax # jump to next instruction; getop, jmp 41