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_GOTO_32.S 18 * 19 * Code: Do an unconditional branch. Uses no substitutions. 20 * 21 * For: goto/32 22 * 23 * Description: Performs an unconditionally jump to the indicated instruction. 24 * The branch uses a 32-bit offset that can be zero. 25 * 26 * Format: |op AAAAlo AAAAhi (30t) 27 * 28 * Syntax: op +AAAAAAAA 29 */ 30 31 FETCH 1, %edx # %edx<- AAAAlo 32 FETCH 2, %ecx # %ecx<- AAAAhi 33 shl $$16, %ecx # prepare to create +AAAAAAAA 34 or %ecx, %edx # %edx<- +AAAAAAAA 35 shl $$1, %edx # %edx is doubled to get the byte offset 36 jc common_periodicChecks2 # do check on backwards branch 37 FINISH_RB %edx, %ecx # jump to next instruction 38
