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File: [Pegasus] / pegasus / src / Pegasus / Common / LoadAndClearWord_HPUX_PARISC_ACC.s
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Revision: 1.5, Tue Dec 2 09:00:48 2008 UTC (15 years, 7 months ago) by martin Branch: MAIN CVS Tags: preBug9676, postBug9676, TASK_PEP317_1JUNE_2013, TASK-TASK_PEP362_RestfulService_branch-root, TASK-TASK_PEP362_RestfulService_branch-merged_out_from_trunk, TASK-TASK_PEP362_RestfulService_branch-merged_in_to_trunk, TASK-TASK_PEP362_RestfulService_branch-merged_in_from_branch, TASK-TASK_PEP362_RestfulService_branch-branch, TASK-PEP362_RestfulService-root, TASK-PEP362_RestfulService-merged_out_to_branch, TASK-PEP362_RestfulService-merged_out_from_trunk, TASK-PEP362_RestfulService-merged_in_to_trunk, TASK-PEP362_RestfulService-merged_in_from_branch, TASK-PEP362_RestfulService-branch, TASK-PEP348_SCMO-root, TASK-PEP348_SCMO-merged_out_to_branch, TASK-PEP348_SCMO-merged_out_from_trunk, TASK-PEP348_SCMO-merged_in_to_trunk, TASK-PEP348_SCMO-merged_in_from_branch, TASK-PEP348_SCMO-branch, TASK-PEP317_pullop-root, TASK-PEP317_pullop-merged_out_to_branch, TASK-PEP317_pullop-merged_out_from_trunk, TASK-PEP317_pullop-merged_in_to_trunk, TASK-PEP317_pullop-merged_in_from_branch, TASK-PEP317_pullop-branch, RELEASE_2_9_2-RC2, RELEASE_2_9_2-RC1, RELEASE_2_9_2, RELEASE_2_9_1-RC1, RELEASE_2_9_1, RELEASE_2_9_0-RC1, RELEASE_2_9_0-FC, RELEASE_2_9_0, RELEASE_2_9-root, RELEASE_2_9-branch, RELEASE_2_14_1, RELEASE_2_14_0-RC2, RELEASE_2_14_0-RC1, RELEASE_2_14_0, RELEASE_2_14-root, RELEASE_2_14-branch, RELEASE_2_13_0-RC2, RELEASE_2_13_0-RC1, RELEASE_2_13_0-FC, RELEASE_2_13_0, RELEASE_2_13-root, RELEASE_2_13-branch, RELEASE_2_12_1-RC1, RELEASE_2_12_1, RELEASE_2_12_0-RC1, RELEASE_2_12_0-FC, RELEASE_2_12_0, RELEASE_2_12-root, RELEASE_2_12-branch, RELEASE_2_11_2-RC1, RELEASE_2_11_2, RELEASE_2_11_1-RC1, RELEASE_2_11_1, RELEASE_2_11_0-RC1, RELEASE_2_11_0-FC, RELEASE_2_11_0, RELEASE_2_11-root, RELEASE_2_11-branch, RELEASE_2_10_1-RC1, RELEASE_2_10_1, RELEASE_2_10_0-RC2, RELEASE_2_10_0-RC1, RELEASE_2_10_0, RELEASE_2_10-root, RELEASE_2_10-branch, PREAUG25UPDATE, POSTAUG25UPDATE, HPUX_TEST, HEAD, CIMRS_WORK_20130824, BeforeUpdateToHeadOct82011 Changes since 1.4: +6 -6 lines BUG#: 8123 TITLE: Update copyright/license text DESCRIPTION: Fixing trailing spaces in copyright/license text |
;//%LICENSE//////////////////////////////////////////////////////////////// ;// ;// Licensed to The Open Group (TOG) under one or more contributor license ;// agreements. Refer to the OpenPegasusNOTICE.txt file distributed with ;// this work for additional information regarding copyright ownership. ;// Each contributor licenses this file to you under the OpenPegasus Open ;// Source License; you may not use this file except in compliance with the ;// License. ;// ;// Permission is hereby granted, free of charge, to any person obtaining a ;// copy of this software and associated documentation files (the "Software"), ;// to deal in the Software without restriction, including without limitation ;// the rights to use, copy, modify, merge, publish, distribute, sublicense, ;// and/or sell copies of the Software, and to permit persons to whom the ;// Software is furnished to do so, subject to the following conditions: ;// ;// The above copyright notice and this permission notice shall be included ;// in all copies or substantial portions of the Software. ;// ;// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS ;// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF ;// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. ;// IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY ;// CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, ;// TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE ;// SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. ;// ;////////////////////////////////////////////////////////////////////////// ; ; LoadAndClearWord_HPUX_PARISC_ACC.s: ; HP-UX PA-RISC assembly language routine for spinlock support. ; .code #ifdef __LP64__ .level 2.0W #else .level 1.1 #endif .export LoadAndClearWord,entry,priv_lev=3,rtnval=gr .proc LoadAndClearWord .callinfo no_calls .enter ; create a 16 byte aligned pointer to the load+clear word area addi 15,%arg0,%arg2 ; add 15 to the pointer to round up #ifdef __LP64__ depdi 0,63,4,%arg2 ; mask the lower 4 bits (64-bit) #else depi 0,31,4,%arg2 ; mask the lower 4 bits (32-bit) #endif #ifdef __LP64__ bve (%r2) ; return 0 if already locked, else !0 #else bv (%r2) ; return 0 if already locked, else !0 #endif ldcws,co (%arg2),%ret0 ; (in branch delay slot) ; load and clear (coherent) the spinlock word ; This code is never executed. This endless loop reduces the ; prefetching after mispredicted bv on pre PA 8700 processors. ; Leave this dead code here to improve performance. load_and_clear_loop b load_and_clear_loop nop .leave .procend
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