| # -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- |
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| # Version: MPL 1.1/GPL 2.0/LGPL 2.1 |
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| # License. |
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| # The Original Code is the Netscape Portable Runtime (NSPR). |
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| # The Initial Developer of the Original Code is |
| # Netscape Communications Corporation. |
| # Portions created by the Initial Developer are Copyright (C) 2003 |
| # the Initial Developer. All Rights Reserved. |
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| # Contributor(s): |
| # |
| # Alternatively, the contents of this file may be used under the terms of |
| # either the GNU General Public License Version 2 or later (the "GPL"), or |
| # the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), |
| # in which case the provisions of the GPL or the LGPL are applicable instead |
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| # ***** END LICENSE BLOCK ***** |
| |
| # |
| # Based on the programming examples in The PowerPC Architecture: |
| # A Specification for A New Family of RISC Processors, 2nd Ed., |
| # Book I, Section E.1, "Synchronization," pp. 249-256, May 1994. |
| # |
| |
| .text |
| |
| # |
| # PRInt32 __PR_DarwinPPC_AtomicIncrement(PRInt32 *val); |
| # |
| .align 2 |
| .globl __PR_DarwinPPC_AtomicIncrement |
| .private_extern __PR_DarwinPPC_AtomicIncrement |
| __PR_DarwinPPC_AtomicIncrement: |
| lwarx r4,0,r3 |
| addi r0,r4,1 |
| stwcx. r0,0,r3 |
| bne- __PR_DarwinPPC_AtomicIncrement |
| mr r3,r0 |
| blr |
| |
| # |
| # PRInt32 __PR_DarwinPPC_AtomicDecrement(PRInt32 *val); |
| # |
| .align 2 |
| .globl __PR_DarwinPPC_AtomicDecrement |
| .private_extern __PR_DarwinPPC_AtomicDecrement |
| __PR_DarwinPPC_AtomicDecrement: |
| lwarx r4,0,r3 |
| addi r0,r4,-1 |
| stwcx. r0,0,r3 |
| bne- __PR_DarwinPPC_AtomicDecrement |
| mr r3,r0 |
| blr |
| |
| # |
| # PRInt32 __PR_DarwinPPC_AtomicSet(PRInt32 *val, PRInt32 newval); |
| # |
| .align 2 |
| .globl __PR_DarwinPPC_AtomicSet |
| .private_extern __PR_DarwinPPC_AtomicSet |
| __PR_DarwinPPC_AtomicSet: |
| lwarx r5,0,r3 |
| stwcx. r4,0,r3 |
| bne- __PR_DarwinPPC_AtomicSet |
| mr r3,r5 |
| blr |
| |
| # |
| # PRInt32 __PR_DarwinPPC_AtomicAdd(PRInt32 *ptr, PRInt32 val); |
| # |
| .align 2 |
| .globl __PR_DarwinPPC_AtomicAdd |
| .private_extern __PR_DarwinPPC_AtomicAdd |
| __PR_DarwinPPC_AtomicAdd: |
| lwarx r5,0,r3 |
| add r0,r4,r5 |
| stwcx. r0,0,r3 |
| bne- __PR_DarwinPPC_AtomicAdd |
| mr r3,r0 |
| blr |
