sdl-ios-xcode: include/SDL_atomic.h annotate

author	Bob Pendleton <bob@pendleton.com>
date	Tue, 09 Jun 2009 17:33:44 +0000
parents
children	030899df1af5

rev	line source
3180 77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	1 /*
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	2 SDL - Simple DirectMedia Layer
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	3 Copyright (C) 1997-2006 Sam Lantinga
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	4
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	5 This library is free software; you can redistribute it and/or
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	6 modify it under the terms of the GNU Lesser General Public
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	7 License as published by the Free Software Foundation; either
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	8 version 2.1 of the License, or (at your option) any later version.
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	9
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	10 This library is distributed in the hope that it will be useful,
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	11 but WITHOUT ANY WARRANTY; without even the implied warranty of
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	13 Lesser General Public License for more details.
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	14
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	15 You should have received a copy of the GNU Lesser General Public
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	16 License along with this library; if not, write to the Free Software
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	18
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	19 Sam Lantinga
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	20 slouken@libsdl.org
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	21 */
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	22
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	23 /**
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	24 * \file SDL_atomic.h
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	25 *
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	26 * Atomic int and pointer magic
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	27 */
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	28
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	29 #ifndef _SDL_atomic_h_
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	30 #define _SDL_atomic_h_
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	31
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	32
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	33 #include "SDL_stdinc.h"
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	34 #include "SDL_platform.h"
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	35
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	36 #include "begin_code.h"
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	37
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	38 /* Set up for C function definitions, even when using C++ */
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	39 #ifdef __cplusplus
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	40 /* INDENT-OFF */
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	41 extern "C" {
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	42 /* INDENT-ON */
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	43 #endif
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	44
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	45 #if defined(__GNUC__) && (defined(i386) \|\| defined(__i386__) \|\| defined(__x86_64__))
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	46 static __inline__ void
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	47 SDL_atomic_int_add(volatile int* atomic, int value)
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	48 {
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	49 __asm__ __volatile__("lock;"
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	50 "addl %1, %0"
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	51 : "=m" (*atomic)
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	52 : "ir" (value),
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	53 "m" (*atomic));
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	54 }
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	55
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	56 static __inline__ int
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	57 SDL_atomic_int_xchg_add(volatile int* atomic, int value)
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	58 {
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	59 int rv;
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	60 __asm__ __volatile__("lock;"
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	61 "xaddl %0, %1"
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	62 : "=r" (rv),
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	63 "=m" (*atomic)
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	64 : "0" (value),
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	65 "m" (*atomic));
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	66 return rv;
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	67 }
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	68
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	69 static __inline__ SDL_bool
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	70 SDL_atomic_int_cmp_xchg(volatile int* atomic, int oldvalue, int newvalue)
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	71 {
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	72 int rv;
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	73 __asm__ __volatile__("lock;"
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	74 "cmpxchgl %2, %1"
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	75 : "=a" (rv),
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	76 "=m" (*atomic)
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	77 : "r" (newvalue),
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	78 "m" (*atomic),
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	79 "0" (oldvalue));
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	80 return (rv == oldvalue);
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	81 }
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	82
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	83 static __inline__ SDL_bool
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	84 SDL_atomic_ptr_cmp_xchg(volatile void** atomic, void* oldvalue, void* newvalue)
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	85 {
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	86 void* rv;
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	87 __asm__ __volatile__("lock;"
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	88 # if defined(__x86_64__)
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	89 "cmpxchgq %q2, %1"
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	90 # else
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	91 "cmpxchgl %2, %1"
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	92 # endif
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	93 : "=a" (rv),
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	94 "=m" (*atomic)
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	95 : "r" (newvalue),
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	96 "m" (*atomic),
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	97 "0" (oldvalue));
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	98 return (rv == oldvalue);
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	99 }
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	100 #elif defined(__GNUC__) && defined(__alpha__)
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	101 # define ATOMIC_MEMORY_BARRIER (__asm__ __volatile__ ("mb" : : : "memory"))
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	102 # define ATOMIC_INT_CMP_XCHG(atomic,value) \
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	103 ({ \
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	104 int rv,prev; \
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	105 __asm__ __volatile__(" mb\n" \
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	106 "1: ldl_l %0,%2\n" \
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	107 " cmpeq %0,%3,%1\n" \
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	108 " beq %1,2f\n" \
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	109 " mov %4,%1\n" \
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	110 " stl_c %1,%2\n" \
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	111 " beq %1,1b\n" \
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	112 " mb\n" \
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	113 "2:" \
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	114 : "=&r" (prev), \
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	115 "=&r" (rv) \
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	116 : "m" (*(atomic)), \
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	117 "Ir" (oldvalue), \
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	118 "Ir" (newvalue) \
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	119 : "memory"); \
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	120 (rv != 0); \
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	121 })
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	122
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	123 # if (SIZEOF_VOIDP == 4)
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	124 static __inline__ SDL_bool
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	125 SDL_atomic_ptr_cmp_xchg(volatile void** atomic, void* oldvalue, void* newvalue)
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	126 {
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	127 int rv;
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	128 void* prev;
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	129 __asm__ __volatile__(" mb\n"
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	130 "1: ldl_l %0,%2\n"
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	131 " cmpeq %0,%3,%1\n"
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	132 " beq $1,2f\n"
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	133 " mov %4,%1\n"
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	134 " stl_c %1,%2\n"
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	135 " beq %1,1b\n"
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	136 " mb\n"
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	137 "2:"
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	138 : "=&r" (prev),
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	139 "=&r" (rv)
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	140 : "m" (*atomic),
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	141 "Ir" (oldvalue),
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	142 "Ir" (newvalue)
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	143 : "memory");
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	144 return (rv != 0);
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	145 }
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	146 # elif (SIZEOF_VOIDP == 8)
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	147 static __inline__ SDL_bool
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	148 SDL_atomic_ptr_cmp_xchg(volatile void** atomic, void* oldvalue, void* newvalue)
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	149 {
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	150 int rv;
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	151 void* prev;
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	152 __asm__ __volatile__(" mb\n"
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	153 "1: ldq_l %0,%2\n"
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	154 " cmpeq %0,%3,%1\n"
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	155 " beq %1,2f\n"
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	156 " mov %4,%1\n"
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	157 " stq_c %1,%2\n"
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	158 " beq %1,1b\n"
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	159 " mb\n"
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	160 "2:"
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	161 : "=&r" (prev),
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	162 "=&r" (rv)
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	163 : "m" (*atomic),
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	164 "Ir" (oldvalue),
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	165 "Ir" (newvalue)
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	166 : "memory");
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	167 return (rv != 0);
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	168 }
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	169 # else
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	170 # error "Your system has an unsupported pointer size"
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	171 # endif /* SIZEOF_VOIDP */
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	172 #elif defined(__GNUC__) && defined(__sparc__)
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	173 # define ATOMIC_MEMORY_BARRIER \
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	174 (__asm__ __volatile__("membar #LoadLoad \| #LoadStore" \
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	175 " \| #StoreLoad \| #StoreStore" : : : "memory"))
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	176 # define ATOMIC_INT_CMP_XCHG(atomic,oldvalue,newvalue) \
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	177 ({ \
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	178 int rv; \
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	179 __asm__ __volatile__("cas [%4], %2, %0" \
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	180 : "=r" (rv), "=m" (*(atomic)) \
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	181 : "r" (oldvalue), "m" (*(atomic)), \
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	182 "r" (atomic), "0" (newvalue)); \
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	183 rv == oldvalue; \
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	184 })
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	185
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	186 # if (SIZEOF_VOIDP == 4)
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	187 static __inline__ SDL_bool
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	188 SDL_atomic_ptr_cmp_xchg(volatile void** atomic, void* oldvalue, void* newvalue)
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	189 {
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	190 void* rv;
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	191 __asm__ __volatile__("cas [%4], %2, %0"
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	192 : "=r" (rv),
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	193 "=m" (*atomic)
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	194 : "r" (oldvalue),
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	195 "m" (*atomic),
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	196 "r" (atomic),
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	197 "0" (newvalue));
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	198 return (rv == oldvalue);
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	199 }
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	200 # elif (SIZEOF_VOIDP == 8)
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	201 static __inline__ SDL_bool
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	202 SDL_atomic_ptr_cmp_xchg(volatile void** atomic, void* oldvalue, void* newvalue)
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	203 {
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	204 void* rv;
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	205 void** a = atomic;
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	206 __asm__ __volatile__("casx [%4], %2, %0"
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	207 : "=r" (rv),
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	208 "=m" (*a)
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	209 : "r" (oldvalue),
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	210 "m" (*a),
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	211 "r" (a),
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	212 "0" (newvalue));
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	213 return (rv == oldvalue);
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	214 }
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	215 # else
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	216 # error "Your system has an unsupported pointer size"
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	217 # endif /* SIZEOF_VOIDP */
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	218 #elif defined(__GNUC__) && (defined(__POWERPC__) \|\| defined(__powerpc__) \|\| defined(__ppc__) \|\| defined(_M_PPC))
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	219 # define ATOMIC_MEMORY_BARRIER \
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	220 (__asm__ __volatile__ ("sync" : : : "memory"))
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	221 static __inline__ void
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	222 SDL_atomic_int_add(volatile int* atomic, int value)
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	223 {
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	224 int rv,tmp;
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	225 __asm__ __volatile__("1: lwarx %0, 0, %3\n"
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	226 " add %1, %0, %4\n"
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	227 " stwcx. %1, 0, %3\n"
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	228 " bne- 1b"
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	229 : "=&b" (rv),
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	230 "=&r" (tmp),
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	231 "=m" (*atomic)
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	232 : "b" (atomic),
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	233 "r" (value),
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	234 "m" (*atomic)
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	235 : "cr0",
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	236 "memory");
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	237 }
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	238
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	239 static __inline__ int
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	240 SDL_atomic_int_xchg_add(volatile int* atomic, int value)
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	241 {
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	242 int rv,tmp;
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	243 __asm__ __volatile__("1: lwarx %0, 0, %3\n"
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	244 " add %1, %0, %4\n"
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	245 " stwcx. %1, 0, %3\n"
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	246 " bne- 1b"
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	247 : "=&b" (rv),
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	248 "=&r" (tmp),
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	249 "=m" (*atomic)
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	250 : "b" (atomic),
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	251 "r" (value),
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	252 "m" (*atomic)
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	253 : "cr0",
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	254 "memory");
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	255 return rv;
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	256 }
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	257
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	258 # if (SIZEOF_VOIDP == 4)
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	259 static __inline__ SDL_bool
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	260 SDL_atomic_int_cmp_xchg(volatile int* atomic, int oldvalue, int newvalue)
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	261 {
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	262 int rv;
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	263 __asm__ __volatile__(" sync\n"
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	264 "1: lwarx %0, 0, %1\n"
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	265 " subf. %0, %2, %0\n"
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	266 " bne 2f\n"
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	267 " stwcx. %3, 0, %1\n"
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	268 " bne- 1b\n"
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	269 "2: isync"
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	270 : "=&r" (rv)
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	271 : "b" (atomic),
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	272 "r" (oldvalue),
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	273 "r"
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	274 : "cr0",
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	275 "memory");
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	276 return (rv == 0);
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	277 }
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	278
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	279 static __inline__ SDL_bool
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	280 SDL_atomic_ptr_cmp_xchg(volatile void** atomic, void* oldvalue, void* newvalue)
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	281 {
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	282 void* rv;
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	283 __asm__ __volatile__("sync\n"
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	284 "1: lwarx %0, 0, %1\n"
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	285 " subf. %0, %2, %0\n"
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	286 " bne 2f\n"
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	287 " stwcx. %3, 0, %1\n"
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	288 " bne- 1b\n"
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	289 "2: isync"
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	290 : "=&r" (rv)
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	291 : "b" (atomic),
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	292 "r" (oldvalue),
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	293 "r" (newvalue)
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	294 : "cr0",
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	295 "memory");
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	296 return (rv == 0);
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	297 }
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	298 # elif (SIZEOF_VOIDP == 8)
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	299 static __inline__ SDL_bool
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	300 SDL_atomic_int_cmp_xchg(volatile int* atomic, int oldvalue, int newvalue)
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	301 {
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	302 int rv;
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	303 __asm__ __volatile__(" sync\n"
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	304 "1: lwarx %0, 0, %1\n"
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	305 " extsw %0, %0\n"
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	306 " subf. %0, %2, %0\n"
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	307 " bne 2f\n"
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	308 " stwcx. %3, 0, %1\n"
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	309 " bne- 1b\n"
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	310 "2: isync"
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	311 : "=&r" (rv)
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	312 : "b" (atomic),
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	313 "r" (oldvalue),
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	314 "r"
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	315 : "cr0",
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	316 "memory");
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	317 return (rv == 0);
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	318 }
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	319
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	320 static __inline__ SDL_bool
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	321 SDL_atomic_ptr_cmp_xchg(volatile void** atomic, void* oldvalue, void* newvalue)
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	322 {
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	323 void* rv;
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	324 __asm__ __volatile__("sync\n"
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	325 "1: ldarx %0, 0, %1\n"
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	326 " subf. %0, %2, %0\n"
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	327 " bne 2f\n"
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	328 " stdcx. %3, 0, %1\n"
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	329 " bne- 1b\n"
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	330 "2: isync"
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	331 : "=&r" (rv)
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	332 : "b" (atomic),
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	333 "r" (oldvalue),
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	334 "r" (newvalue)
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	335 : "cr0",
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	336 "memory");
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	337 return (rv == 0);
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	338 }
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	339 # else
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	340 # error "Your system has an unsupported pointer size"
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	341 # endif /* SIZEOF_VOIDP */
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	342 #elif defined(__GNUC__) && (defined(__IA64__) \|\| defined(__ia64__))
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	343 # define ATOMIC_MEMORY_BARRIER (__sync_synchronize())
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	344 # define SDL_atomic_int_xchg_add(atomic, value) \
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	345 (__sync_fetch_and_add((atomic),(value)))
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	346 # define SDL_atomic_int_add(atomic, value) \
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	347 ((void)__sync_fetch_and_add((atomic),(value)))
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	348 # define SDL_atomic_int_cmp_xchg(atomic,oldvalue,newvalue) \
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	349 (__sync_bool_compare_and_swap((atomic),(oldvalue),(newvalue)))
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	350 # define SDL_atomic_ptr_cmp_xchg(atomic,oldvalue,newvalue) \
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	351 (__sync_bool_compare_and_swap((long*)(atomic),(long)(oldvalue),(long)(newvalue)))
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	352 #elif defined(__GNUC__) && defined(__LINUX__) && (defined(__mips__) \|\| defined(__MIPS__))
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	353 static __inline__ int
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	354 SDL_atomic_int_xchg_add(volatile int* atomic, int value)
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	355 {
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	356 int rv,tmp;
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	357 __asm__ __volatile__("1: \n"
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	358 ".set push \n"
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	359 ".set mips2 \n"
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	360 "ll %0,%3 \n"
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	361 "addu %1,%4,%0 \n"
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	362 "sc %1,%2 \n"
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	363 ".set pop \n"
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	364 "beqz %1,1b \n"
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	365 : "=&r" (rv),
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	366 "=&r" (tmp),
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	367 "=m" (*atomic)
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	368 : "m" (*atomic),
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	369 "r" (value)
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	370 : "memory");
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	371 return rv;
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	372 }
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	373
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	374 static __inline__ void
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	375 SDL_atomic_int_add(volatile int* atomic, int value)
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	376 {
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	377 int rv;
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	378 __asm__ __volatile__("1: \n"
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	379 ".set push \n"
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	380 ".set mips2 \n"
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	381 "ll %0,%2 \n"
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	382 "addu %0,%3,%0 \n"
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	383 "sc %0,%1 \n"
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	384 ".set pop \n"
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	385 "beqz %0,1b \n"
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	386 : "=&r" (rv),
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	387 "=m" (*atomic)
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	388 : "m" (*atomic),
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	389 "r" (value)
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	390 : "memory");
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	391 }
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	392
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	393 static __inline__ SDL_bool
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	394 SDL_atomic_int_cmp_xchg(volatile int* atomic, int oldvalue, int newvalue)
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	395 {
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	396 int rv;
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	397 __asm__ __volatile__(" .set push \n"
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	398 " .set noat \n"
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	399 " .set mips3 \n"
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	400 "1: ll %0, %2 \n"
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	401 " bne %0, %z3, 2f \n"
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	402 " .set mips0 \n"
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	403 " move $1, %z4 \n"
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	404 " .set mips3 \n"
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	405 " sc $1, %1 \n"
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	406 " beqz $1, 1b \n"
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	407 " sync \n"
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	408 "2: \n"
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	409 " .set pop \n"
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	410 : "=&r" (rv),
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	411 "=R" (*atomic)
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	412 : "R" (*atomic),
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	413 "Jr" (oldvalue),
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	414 "Jr" (newvalue)
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	415 : "memory");
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	416 return (SDL_bool)rv;
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	417 }
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	418
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	419 static __inline__ SDL_bool
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	420 SDL_atomic_ptr_cmp_xchg(volatile void** atomic, void* oldvalue, void* newvalue)
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	421 {
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	422 int rv;
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	423 __asm__ __volatile__(" .set push \n"
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	424 " .set noat \n"
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	425 " .set mips3 \n"
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	426 # if defined(__mips64)
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	427 "1: lld %0, %2 \n"
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	428 # else
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	429 "1: ll %0, %2 \n"
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	430 # endif
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	431 " bne %0, %z3, 2f \n"
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	432 " move $1, %z4 \n"
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	433 # if defined(__mips64)
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	434 " sc $1, %1 \n"
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	435 # else
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	436 " scd $1, %1 \n"
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	437 # endif
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	438 " beqz $1, 1b \n"
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	439 " sync \n"
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	440 "2: \n"
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	441 " .set pop \n"
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	442 : "=&r" (rv),
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	443 "=R" (*atomic)
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	444 : "R" (*atomic),
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	445 "Jr" (oldvalue),
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	446 "Jr" (newvalue)
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	447 : "memory");
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	448 return (SDL_bool)rv;
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	449 }
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	450 #elif defined(__GNUC__) && defined(__m68k__)
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	451 static __inline__ int
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	452 SDL_atomic_int_xchg_add(volatile int* atomic, int value)
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	453 {
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	454 int rv = *atomic;
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	455 int tmp;
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	456 __asm__ __volatile__("1: move%.l %0,%1 \n"
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	457 " add%.l %2,%1 \n"
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	458 " cas%.l %0,%1,%3 \n"
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	459 " jbne 1b \n"
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	460 : "=d" (rv),
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	461 "=&d" (tmp)
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	462 : "d" (value),
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	463 "m" (*atomic),
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	464 "0" (rv)
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	465 : "memory");
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	466 return rv;
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	467 }
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	468
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	469 static __inline__ void
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	470 SDL_atomic_int_add(volatile int* atomic, int value)
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	471 {
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	472 __asm__ __volatile__("add%.l %0,%1"
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	473 :
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	474 : "id" (value),
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	475 "m" (*atomic)
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	476 : "memory");
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	477 }
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	478
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	479 static __inline__ SDL_bool
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	480 SDL_atomic_int_cmp_xchg(volatile int* atomic, int oldvalue, int newvalue)
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	481 {
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	482 char rv;
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	483 int readvalue;
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	484 __asm__ __volatile__("cas%.l %2,%3,%1\n"
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	485 "seq %0"
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	486 : "=dm" (rv),
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	487 "=m" (*atomic),
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	488 "=d" (readvalue)
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	489 : "d" (newvalue),
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	490 "m" (*atomic),
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	491 "2" (oldvalue));
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	492 return rv;
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	493 }
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	494
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	495 static __inline__ SDL_bool
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	496 SDL_atomic_ptr_cmp_xchg(volatile void** atomic, void* oldvalue, void* newvalue)
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	497 {
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	498 char rv;
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	499 int readvalue;
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	500 __asm__ __volatile__("cas%.l %2,%3,%1\n"

3180

77d6336711fc First commit for SDL atomic operations.