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Atomic increment and decrement functions for mips

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git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/base/trunk@30020 72102866-910b-0410-8b05-ffd578937521
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Riccardo Mottola 2010-03-23 00:03:21 +00:00
parent 907c94a229
commit cb4c554422
2 changed files with 40 additions and 1 deletions
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4
ChangeLog
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@ -1,3 +1,7 @@
2010-03-23 Riccardo Mottola <rmottola@users.sf.net>
* Source/NSObject.m: Atomic increment and decrement functions for mips
2010-03-19 Richard Frith-Macdonald <rfm@gnu.org>
* config/config.reuseaddr.c:

37
Source/NSObject.m
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@ -1,5 +1,5 @@
/** Implementation of NSObject for GNUStep
Copyright (C) 1994, 1995, 1996 Free Software Foundation, Inc.
Copyright (C) 1994-2010 Free Software Foundation, Inc.
Written by: Andrew Kachites McCallum <mccallum@gnu.ai.mit.edu>
Date: August 1994
@ -306,6 +306,41 @@ GSAtomicDecrement(gsatomic_t X)
return *X;
}
#elif defined(__mips__)
typedef int32_t volatile *gsatomic_t;
#define GSATOMICREAD(X) (*(X))
static __inline__ int
GSAtomicIncrement(gsatomic_t X)
{
int tmp;
__asm__ __volatile__ (
" .set mips2 \n"
"0: ll %0, %1 \n"
" addiu %0, 1 \n"
" sc %0, %1 \n"
" beqz %0, 0b \n"
:"=&r" (tmp), "=m" (*X));
return *X;
}
static __inline__ int
GSAtomicDecrement(gsatomic_t X)
{
int tmp;
__asm__ __volatile__ (
" .set mips2 \n"
"0: ll %0, %1 \n"
" addiu %0, -1 \n"
" sc %0, %1 \n"
" beqz %0, 0b \n"
:"=&r" (tmp), "=m" (*X));
return *X;
}
#endif
#if !defined(GSATOMICREAD)