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File: [Pegasus] / pegasus / src / Pegasus / Common / LoadAndClearWord_HPUX_PARISC_ACC.s
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Revision: 1.3, Fri Nov 10 18:14:58 2006 UTC (17 years, 7 months ago) by kumpf Branch: MAIN CVS Tags: TASK_PEP328_SOLARIS_NEVADA_PORT, TASK-PEP328_SOLARIS_NEVADA_PORT_v2-root, TASK-PEP328_SOLARIS_NEVADA_PORT_v2-branch, TASK-PEP328_SOLARIS_NEVADA_PORT-root, TASK-PEP328_SOLARIS_NEVADA_PORT-branch, TASK-PEP328_SOLARIS_IX86_CC_PORT-root, TASK-PEP328_SOLARIS_IX86_CC_PORT-branch-v2, TASK-PEP328_SOLARIS_IX86_CC_PORT-branch, TASK-PEP311_WSMan-root, TASK-PEP311_WSMan-branch, TASK-PEP305_VXWORKS-root, TASK-PEP305_VXWORKS-branch-pre-solaris-port, TASK-PEP305_VXWORKS-branch-post-solaris-port, TASK-PEP305_VXWORKS-branch-beta2, TASK-PEP305_VXWORKS-branch, TASK-PEP305_VXWORKS-2008-10-23, TASK-PEP291_IPV6-root, TASK-PEP291_IPV6-branch, TASK-PEP286_PRIVILEGE_SEPARATION-root, TASK-PEP286_PRIVILEGE_SEPARATION-branch, TASK-PEP274_dacim-root, TASK-PEP274_dacim-merged_out_to_branch, TASK-PEP274_dacim-merged_out_from_trunk, TASK-PEP274_dacim-merged_in_to_trunk, TASK-PEP274_dacim-merged_in_from_branch, TASK-PEP274_dacim-branch, TASK-Bug2102_RCMPIWindows-root, TASK-Bug2102_RCMPIWindows-merged_out_to_branch, TASK-Bug2102_RCMPIWindows-merged_out_from_trunk, TASK-Bug2102_RCMPIWindows-merged_in_to_trunk, TASK-Bug2102_RCMPIWindows-merged_in_from_branch, TASK-Bug2102_RCMPIWindows-branch, TASK-Bug2102Final-root, TASK-Bug2102Final-merged_out_to_branch, TASK-Bug2102Final-merged_out_from_trunk, TASK-Bug2102Final-merged_in_to_trunk, TASK-Bug2102Final-merged_in_from_branch, TASK-Bug2102Final-branch, TASK-BUG7240-root, TASK-BUG7240-branch, TASK-BUG7146_SqlRepositoryPrototype-root, TASK-BUG7146_SqlRepositoryPrototype-merged_out_to_branch, TASK-BUG7146_SqlRepositoryPrototype-merged_out_from_trunk, TASK-BUG7146_SqlRepositoryPrototype-merged_in_to_trunk, TASK-BUG7146_SqlRepositoryPrototype-merged_in_from_branch, TASK-BUG7146_SqlRepositoryPrototype-branch, RELEASE_2_8_2-RC1, RELEASE_2_8_2, RELEASE_2_8_1-RC1, RELEASE_2_8_1, RELEASE_2_8_0_BETA, RELEASE_2_8_0-RC2, RELEASE_2_8_0-RC1, RELEASE_2_8_0-FC, RELEASE_2_8_0, RELEASE_2_8-root, RELEASE_2_8-branch, RELEASE_2_7_3-RC1, RELEASE_2_7_3, RELEASE_2_7_2-RC1, RELEASE_2_7_2, RELEASE_2_7_1-RC1, RELEASE_2_7_1, RELEASE_2_7_0-RC1, RELEASE_2_7_0-BETA, RELEASE_2_7_0, RELEASE_2_7-root, RELEASE_2_7-branch, RELEASE_2_6_3-RC2, RELEASE_2_6_3-RC1, RELEASE_2_6_3, RELEASE_2_6_2-RC1, RELEASE_2_6_2, RELEASE_2_6_1-RC1, RELEASE_2_6_1, RELEASE_2_6_0-RC1, RELEASE_2_6_0-FC, RELEASE_2_6_0, RELEASE_2_6-root, RELEASE_2_6-branch-clean, RELEASE_2_6-branch, PEP286_PRIVILEGE_SEPARATION_ROOT, PEP286_PRIVILEGE_SEPARATION_CODE_FREEZE, PEP286_PRIVILEGE_SEPARATION_BRANCH, PEP286_PRIVILEGE_SEPARATION_1, Makefile Changes since 1.2: +0 -2 lines BUG#: 5840 TITLE: Common modules do not meet chksrc requirements DESCRIPTION: Remove tab characters and author names and shorten lines that are wider than 80 characters. |
;%2006//////////////////////////////////////////////////////////////////////// ; ; Copyright (c) 2000, 2001, 2002 BMC Software; Hewlett-Packard Development ; Company, L.P.; IBM Corp.; The Open Group; Tivoli Systems. ; Copyright (c) 2003 BMC Software; Hewlett-Packard Development Company, L.P.; ; IBM Corp.; EMC Corporation, The Open Group. ; Copyright (c) 2004 BMC Software; Hewlett-Packard Development Company, L.P.; ; IBM Corp.; EMC Corporation; VERITAS Software Corporation; The Open Group. ; Copyright (c) 2005 Hewlett-Packard Development Company, L.P.; IBM Corp.; ; EMC Corporation; VERITAS Software Corporation; The Open Group. ; Copyright (c) 2006 Hewlett-Packard Development Company, L.P.; IBM Corp.; ; EMC Corporation; Symantec Corporation; The Open Group. ; ; 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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