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

annotate include/SDL_atomic.h @ 3188:102b7880543a

Whoops, didn't mean to commit unfinished patch

author	Sam Lantinga <slouken@libsdl.org>
date	Wed, 10 Jun 2009 13:46:54 +0000
parents	e041d2c603fe
children	3e1bf2b8bd81

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
3187 e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	45 /* indent is really bad at handling assembly */
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	46 /* INDENT-OFF */
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	47
3180 77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	48 #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	49 static __inline__ void
3187 e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	50 SDL_atomic_int_add(volatile int* atomic, int value)
3180 77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	51 {
3187 e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	52 __asm__ __volatile__("lock;"
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	53 "addl %1, %0"
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	54 : "=m" (*atomic)
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	55 : "ir" (value),
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	56 "m" (*atomic));
3180 77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	57 }
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 static __inline__ int
3187 e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	60 SDL_atomic_int_xchg_add(volatile int* atomic, int value)
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	61 {
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	62 int rv;
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	63 __asm__ __volatile__("lock;"
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	64 "xaddl %0, %1"
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	65 : "=r" (rv),
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	66 "=m" (*atomic)
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	67 : "0" (value),
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	68 "m" (*atomic));
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	69 return rv;
3180 77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	70 }
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 static __inline__ SDL_bool
3187 e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	73 SDL_atomic_int_cmp_xchg(volatile int* atomic, int oldvalue, int newvalue)
3180 77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	74 {
3187 e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	75 int rv;
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	76 __asm__ __volatile__("lock;"
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	77 "cmpxchgl %2, %1"
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	78 : "=a" (rv),
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	79 "=m" (*atomic)
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	80 : "r" (newvalue),
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	81 "m" (*atomic),
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	82 "0" (oldvalue));
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	83 return (SDL_bool)(rv == oldvalue);
3180 77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	84 }
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 static __inline__ SDL_bool
3187 e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	87 SDL_atomic_ptr_cmp_xchg(volatile void** atomic, void* oldvalue, void* newvalue)
3180 77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	88 {
3187 e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	89 void* rv;
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	90 __asm__ __volatile__("lock;"
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	91 # if defined(__x86_64__)
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	92 "cmpxchgq %q2, %1"
3180 77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	93 # else
3187 e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	94 "cmpxchgl %2, %1"
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	95 # endif
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	96 : "=a" (rv),
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	97 "=m" (*atomic)
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	98 : "r" (newvalue),
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	99 "m" (*atomic),
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	100 "0" (oldvalue));
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	101 return (SDL_bool)(rv == oldvalue);
3180 77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	102 }
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	103 #elif defined(__GNUC__) && defined(__alpha__)
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	104 # define ATOMIC_MEMORY_BARRIER (__asm__ __volatile__ ("mb" : : : "memory"))
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	105 # define ATOMIC_INT_CMP_XCHG(atomic,value) \
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	106 ({ \
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	107 int rv,prev; \
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	108 __asm__ __volatile__(" mb\n" \
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	109 "1: ldl_l %0,%2\n" \
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	110 " cmpeq %0,%3,%1\n" \
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	111 " beq %1,2f\n" \
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	112 " mov %4,%1\n" \
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	113 " stl_c %1,%2\n" \
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	114 " beq %1,1b\n" \
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	115 " mb\n" \
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	116 "2:" \
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	117 : "=&r" (prev), \
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	118 "=&r" (rv) \
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	119 : "m" (*(atomic)), \
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	120 "Ir" (oldvalue), \
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	121 "Ir" (newvalue) \
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	122 : "memory"); \
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	123 (rv != 0); \
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	124 })
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	125
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	126 # if (SIZEOF_VOIDP == 4)
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	127 static __inline__ SDL_bool
3187 e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	128 SDL_atomic_ptr_cmp_xchg(volatile void** atomic, void* oldvalue, void* newvalue)
3180 77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	129 {
3187 e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	130 int rv;
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	131 void* prev;
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	132 __asm__ __volatile__(" mb\n"
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	133 "1: ldl_l %0,%2\n"
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	134 " cmpeq %0,%3,%1\n"
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	135 " beq $1,2f\n"
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	136 " mov %4,%1\n"
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	137 " stl_c %1,%2\n"
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	138 " beq %1,1b\n"
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	139 " mb\n"
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	140 "2:"
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	141 : "=&r" (prev),
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	142 "=&r" (rv)
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	143 : "m" (*atomic),
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	144 "Ir" (oldvalue),
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	145 "Ir" (newvalue)
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	146 : "memory");
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	147 return (SDL_bool)(rv != 0);
3180 77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	148 }
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	149 # elif (SIZEOF_VOIDP == 8)
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	150 static __inline__ SDL_bool
3187 e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	151 SDL_atomic_ptr_cmp_xchg(volatile void** atomic, void* oldvalue, void* newvalue)
3180 77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	152 {
3187 e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	153 int rv;
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	154 void* prev;
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	155 __asm__ __volatile__(" mb\n"
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	156 "1: ldq_l %0,%2\n"
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	157 " cmpeq %0,%3,%1\n"
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	158 " beq %1,2f\n"
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	159 " mov %4,%1\n"
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	160 " stq_c %1,%2\n"
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	161 " beq %1,1b\n"
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	162 " mb\n"
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	163 "2:"
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	164 : "=&r" (prev),
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	165 "=&r" (rv)
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	166 : "m" (*atomic),
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	167 "Ir" (oldvalue),
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	168 "Ir" (newvalue)
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	169 : "memory");
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	170 return (SDL_bool)(rv != 0);
3180 77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	171 }
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	172 # else
3187 e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	173 # error "Your system has an unsupported pointer size"
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	174 # endif /* SIZEOF_VOIDP */
3180 77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	175 #elif defined(__GNUC__) && defined(__sparc__)
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	176 # define ATOMIC_MEMORY_BARRIER \
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	177 (__asm__ __volatile__("membar #LoadLoad \| #LoadStore" \
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	178 " \| #StoreLoad \| #StoreStore" : : : "memory"))
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	179 # define ATOMIC_INT_CMP_XCHG(atomic,oldvalue,newvalue) \
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	180 ({ \
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	181 int rv; \
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	182 __asm__ __volatile__("cas [%4], %2, %0" \
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	183 : "=r" (rv), "=m" (*(atomic)) \
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	184 : "r" (oldvalue), "m" (*(atomic)), \
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	185 "r" (atomic), "0" (newvalue)); \
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	186 rv == oldvalue; \
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	187 })
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	188
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	189 # if (SIZEOF_VOIDP == 4)
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	190 static __inline__ SDL_bool
3187 e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	191 SDL_atomic_ptr_cmp_xchg(volatile void** atomic, void* oldvalue, void* newvalue)
3180 77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	192 {
3187 e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	193 void* rv;
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	194 __asm__ __volatile__("cas [%4], %2, %0"
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	195 : "=r" (rv),
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	196 "=m" (*atomic)
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	197 : "r" (oldvalue),
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	198 "m" (*atomic),
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	199 "r" (atomic),
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	200 "0" (newvalue));
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	201 return (SDL_bool)(rv == oldvalue);
3180 77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	202 }
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	203 # elif (SIZEOF_VOIDP == 8)
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	204 static __inline__ SDL_bool
3187 e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	205 SDL_atomic_ptr_cmp_xchg(volatile void** atomic, void* oldvalue, void* newvalue)
3180 77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	206 {
3187 e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	207 void* rv;
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	208 void** a = atomic;
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	209 __asm__ __volatile__("casx [%4], %2, %0"
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	210 : "=r" (rv),
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	211 "=m" (*a)
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	212 : "r" (oldvalue),
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	213 "m" (*a),
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	214 "r" (a),
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	215 "0" (newvalue));
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	216 return (SDL_bool)(rv == oldvalue);
3180 77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	217 }
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	218 # else
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	219 # error "Your system has an unsupported pointer size"
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	220 # endif /* SIZEOF_VOIDP */
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	221 #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	222 # define ATOMIC_MEMORY_BARRIER \
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	223 (__asm__ __volatile__ ("sync" : : : "memory"))
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	224 static __inline__ void
3187 e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	225 SDL_atomic_int_add(volatile int* atomic, int value)
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	226 {
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	227 int rv,tmp;
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	228 __asm__ __volatile__("1: lwarx %0, 0, %3\n"
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	229 " add %1, %0, %4\n"
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	230 " stwcx. %1, 0, %3\n"
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	231 " bne- 1b"
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	232 : "=&b" (rv),
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	233 "=&r" (tmp),
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	234 "=m" (*atomic)
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	235 : "b" (atomic),
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	236 "r" (value),
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	237 "m" (*atomic)
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	238 : "cr0",
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	239 "memory");
3180 77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	240 }
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 static __inline__ int
3187 e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	243 SDL_atomic_int_xchg_add(volatile int* atomic, int value)
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	244 {
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	245 int rv,tmp;
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	246 __asm__ __volatile__("1: lwarx %0, 0, %3\n"
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	247 " add %1, %0, %4\n"
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	248 " stwcx. %1, 0, %3\n"
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	249 " bne- 1b"
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	250 : "=&b" (rv),
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	251 "=&r" (tmp),
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	252 "=m" (*atomic)
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	253 : "b" (atomic),
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	254 "r" (value),
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	255 "m" (*atomic)
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	256 : "cr0",
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	257 "memory");
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	258 return rv;
3180 77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	259 }
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	260
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	261 # if (SIZEOF_VOIDP == 4)
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	262 static __inline__ SDL_bool
3187 e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	263 SDL_atomic_int_cmp_xchg(volatile int* atomic, int oldvalue, int newvalue)
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	264 {
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	265 int rv;
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	266 __asm__ __volatile__(" sync\n"
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	267 "1: lwarx %0, 0, %1\n"
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	268 " subf. %0, %2, %0\n"
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	269 " bne 2f\n"
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	270 " stwcx. %3, 0, %1\n"
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	271 " bne- 1b\n"
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	272 "2: isync"
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	273 : "=&r" (rv)
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	274 : "b" (atomic),
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	275 "r" (oldvalue),
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	276 "r"
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	277 : "cr0",
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	278 "memory");
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	279 return (SDL_bool)(rv == 0);
3180 77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	280 }
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 static __inline__ SDL_bool
3187 e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	283 SDL_atomic_ptr_cmp_xchg(volatile void** atomic, void* oldvalue, void* newvalue)
3180 77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	284 {
3187 e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	285 void* rv;
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	286 __asm__ __volatile__("sync\n"
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	287 "1: lwarx %0, 0, %1\n"
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	288 " subf. %0, %2, %0\n"
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	289 " bne 2f\n"
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	290 " stwcx. %3, 0, %1\n"
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	291 " bne- 1b\n"
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	292 "2: isync"
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	293 : "=&r" (rv)
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	294 : "b" (atomic),
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	295 "r" (oldvalue),
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	296 "r" (newvalue)
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	297 : "cr0",
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	298 "memory");
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	299 return (SDL_bool)(rv == 0);
3180 77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	300 }
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	301 # elif (SIZEOF_VOIDP == 8)
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	302 static __inline__ SDL_bool
3187 e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	303 SDL_atomic_int_cmp_xchg(volatile int* atomic, int oldvalue, int newvalue)
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	304 {
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	305 int rv;
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	306 __asm__ __volatile__(" sync\n"
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	307 "1: lwarx %0, 0, %1\n"
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	308 " extsw %0, %0\n"
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	309 " subf. %0, %2, %0\n"
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	310 " bne 2f\n"
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	311 " stwcx. %3, 0, %1\n"
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	312 " bne- 1b\n"
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	313 "2: isync"
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	314 : "=&r" (rv)
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	315 : "b" (atomic),
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	316 "r" (oldvalue),
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	317 "r"
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	318 : "cr0",
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	319 "memory");
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	320 return (SDL_bool)(rv == 0);
3180 77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	321 }
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 static __inline__ SDL_bool
3187 e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	324 SDL_atomic_ptr_cmp_xchg(volatile void** atomic, void* oldvalue, void* newvalue)
3180 77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	325 {
3187 e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	326 void* rv;
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	327 __asm__ __volatile__("sync\n"
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	328 "1: ldarx %0, 0, %1\n"
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	329 " subf. %0, %2, %0\n"
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	330 " bne 2f\n"
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	331 " stdcx. %3, 0, %1\n"
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	332 " bne- 1b\n"
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	333 "2: isync"
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	334 : "=&r" (rv)
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	335 : "b" (atomic),
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	336 "r" (oldvalue),
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	337 "r" (newvalue)
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	338 : "cr0",
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	339 "memory");
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	340 return (SDL_bool)(rv == 0);
3180 77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	341 }
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	342 # else
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	343 # error "Your system has an unsupported pointer size"
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	344 # endif /* SIZEOF_VOIDP */
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	345 #elif defined(__GNUC__) && (defined(__IA64__) \|\| defined(__ia64__))
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	346 # define ATOMIC_MEMORY_BARRIER (__sync_synchronize())
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	347 # define SDL_atomic_int_xchg_add(atomic, value) \
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	348 (__sync_fetch_and_add((atomic),(value)))
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	349 # define SDL_atomic_int_add(atomic, value) \
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	350 ((void)__sync_fetch_and_add((atomic),(value)))
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	351 # define SDL_atomic_int_cmp_xchg(atomic,oldvalue,newvalue) \
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	352 (__sync_bool_compare_and_swap((atomic),(oldvalue),(newvalue)))
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	353 # define SDL_atomic_ptr_cmp_xchg(atomic,oldvalue,newvalue) \
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	354 (__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	355 #elif defined(__GNUC__) && defined(__LINUX__) && (defined(__mips__) \|\| defined(__MIPS__))
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	356 static __inline__ int
3187 e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	357 SDL_atomic_int_xchg_add(volatile int* atomic, int value)
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	358 {
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	359 int rv,tmp;
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	360 __asm__ __volatile__("1: \n"
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	361 ".set push \n"
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	362 ".set mips2 \n"
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	363 "ll %0,%3 \n"
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	364 "addu %1,%4,%0 \n"
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	365 "sc %1,%2 \n"
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	366 ".set pop \n"
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	367 "beqz %1,1b \n"
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	368 : "=&r" (rv),
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	369 "=&r" (tmp),
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	370 "=m" (*atomic)
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	371 : "m" (*atomic),
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	372 "r" (value)
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	373 : "memory");
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	374 return rv;
3180 77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	375 }
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 static __inline__ void
3187 e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	378 SDL_atomic_int_add(volatile int* atomic, int value)
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	379 {
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	380 int rv;
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	381 __asm__ __volatile__("1: \n"
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	382 ".set push \n"
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	383 ".set mips2 \n"
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	384 "ll %0,%2 \n"
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	385 "addu %0,%3,%0 \n"
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	386 "sc %0,%1 \n"
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	387 ".set pop \n"
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	388 "beqz %0,1b \n"
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	389 : "=&r" (rv),
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	390 "=m" (*atomic)
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	391 : "m" (*atomic),
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	392 "r" (value)
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	393 : "memory");
3180 77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	394 }
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 static __inline__ SDL_bool
3187 e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	397 SDL_atomic_int_cmp_xchg(volatile int* atomic, int oldvalue, int newvalue)
3180 77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	398 {
3187 e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	399 int rv;
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	400 __asm__ __volatile__(" .set push \n"
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	401 " .set noat \n"
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	402 " .set mips3 \n"
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	403 "1: ll %0, %2 \n"
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	404 " bne %0, %z3, 2f \n"
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	405 " .set mips0 \n"
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	406 " move $1, %z4 \n"
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	407 " .set mips3 \n"
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	408 " sc $1, %1 \n"
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	409 " beqz $1, 1b \n"
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	410 " sync \n"
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	411 "2: \n"
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	412 " .set pop \n"
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	413 : "=&r" (rv),
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	414 "=R" (*atomic)
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	415 : "R" (*atomic),
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	416 "Jr" (oldvalue),
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	417 "Jr" (newvalue)
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	418 : "memory");
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	419 return (SDL_bool)rv;
3180 77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	420 }
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 static __inline__ SDL_bool
3187 e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	423 SDL_atomic_ptr_cmp_xchg(volatile void** atomic, void* oldvalue, void* newvalue)
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	424 {
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	425 int rv;
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	426 __asm__ __volatile__(" .set push \n"
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	427 " .set noat \n"
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	428 " .set mips3 \n"
3180 77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	429 # if defined(__mips64)
3187 e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	430 "1: lld %0, %2 \n"
3186 51750b7a966f indent Sam Lantinga <slouken@libsdl.org> parents: 3181 diff changeset	431 # else
3187 e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	432 "1: ll %0, %2 \n"
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	433 # endif
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	434 " bne %0, %z3, 2f \n"
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	435 " move $1, %z4 \n"
3186 51750b7a966f indent Sam Lantinga <slouken@libsdl.org> parents: 3181 diff changeset	436 # if defined(__mips64)
3187 e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	437 " sc $1, %1 \n"
3180 77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	438 # else
3187 e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	439 " scd $1, %1 \n"
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	440 # endif
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	441 " beqz $1, 1b \n"
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	442 " sync \n"
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	443 "2: \n"
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	444 " .set pop \n"
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	445 : "=&r" (rv),
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	446 "=R" (*atomic)
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	447 : "R" (*atomic),
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	448 "Jr" (oldvalue),
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	449 "Jr" (newvalue)
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	450 : "memory");
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	451 return (SDL_bool)rv;
3180 77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	452 }
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	453 #elif defined(__GNUC__) && defined(__m68k__)
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	454 static __inline__ int
3187 e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	455 SDL_atomic_int_xchg_add(volatile int* atomic, int value)
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	456 {
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	457 int rv = *atomic;
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	458 int tmp;
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	459 __asm__ __volatile__("1: move%.l %0,%1 \n"
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	460 " add%.l %2,%1 \n"
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	461 " cas%.l %0,%1,%3 \n"
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	462 " jbne 1b \n"
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	463 : "=d" (rv),
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	464 "=&d" (tmp)
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	465 : "d" (value),
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	466 "m" (*atomic),
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	467 "0" (rv)
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	468 : "memory");
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	469 return (SDL_bool)rv;
3180 77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	470 }
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 static __inline__ void
3187 e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	473 SDL_atomic_int_add(volatile int* atomic, int value)
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	474 {
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	475 __asm__ __volatile__("add%.l %0,%1"
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	476 :
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	477 : "id" (value),
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	478 "m" (*atomic)
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	479 : "memory");
3180 77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	480 }
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 static __inline__ SDL_bool
3187 e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	483 SDL_atomic_int_cmp_xchg(volatile int* atomic, int oldvalue, int newvalue)
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	484 {
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	485 char rv;
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	486 int readvalue;
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	487 __asm__ __volatile__("cas%.l %2,%3,%1\n"
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	488 "seq %0"
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	489 : "=dm" (rv),
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	490 "=m" (*atomic),
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	491 "=d" (readvalue)
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	492 : "d" (newvalue),
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	493 "m" (*atomic),
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	494 "2" (oldvalue));
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	495 return (SDL_bool)rv;
3180 77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	496 }
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 static __inline__ SDL_bool
3187 e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	499 SDL_atomic_ptr_cmp_xchg(volatile void** atomic, void* oldvalue, void* newvalue)
3180 77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	500 {
3187 e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	501 char rv;
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	502 int readvalue;
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	503 __asm__ __volatile__("cas%.l %2,%3,%1\n"
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	504 "seq %0"
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	505 : "=dm" (rv),
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	506 "=m" (*atomic),
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	507 "=d" (readvalue)
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	508 : "d" (newvalue),
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	509 "m" (*atomic),
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	510 "2" (oldvalue));
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	511 return (SDL_bool)rv;
3180 77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	512 }
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	513 #elif defined(__GNUC__) && defined(__s390__)
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	514 # define ATOMIC_INT_CMP_XCHG(atomic,oldvalue,newvalue) \
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	515 ({ \
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	516 int rv = oldvalue; \
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	517 __asm__ __volatile__("cs %0, %2, %1" \
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	518 : "+d" (rv), \
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	519 "=Q" (*(atomic)) \
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	520 : "d" (newvalue), \
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	521 "m" (*(atomic)) \
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	522 : "cc"); \
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	523 rv == oldvalue; \
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	524 })
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	525 # if (SIZEOF_VOIDP == 4)
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	526 static __inline__ SDL_bool
3187 e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	527 SDL_atomic_ptr_cmp_xchg(volatile void** atomic, void* oldvalue, void* newvalue)
3180 77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	528 {
3187 e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	529 void* rv = oldvalue;
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	530 __asm__ __volatile__("cs %0, %2, %1"
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	531 : "+d" (rv),
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	532 "=Q" (*atomic)
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	533 : "d" (newvalue),
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	534 "m" (*atomic)
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	535 : "cc");
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	536 return (SDL_bool)(rv == oldvalue);
3180 77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	537 }
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	538 # elif (SIZEOF_VOIDP == 8)
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	539 static __inline__ SDL_bool
3187 e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	540 SDL_atomic_ptr_cmp_xchg(volatile void** atomic, void* oldvalue, void* newvalue)
3180 77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	541 {
3187 e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	542 void* rv = oldvalue;
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	543 void** a = atomic;
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	544 __asm__ __volatile__("csg %0, %2, %1"
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	545 : "+d" (rv),
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	546 "=Q" (*a)
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	547 : "d" ((long)(newvalue)),
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	548 "m" (*a)
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	549 : "cc");
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	550 return (SDL_bool)(rv == oldvalue);
3180 77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	551 }
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	552 # else
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	553 # error "Your system has an unsupported pointer size"
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	554 # endif /* SIZEOF_VOIDP */
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	555 #elif defined(__WIN32__)
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	556 # include <windows.h>
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	557 static __inline__ int
3187 e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	558 SDL_atomic_int_xchg_add(volatile int* atomic, int value)
3180 77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	559 {
3187 e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	560 return InterlockedExchangeAdd(atomic, value);
3180 77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	561 }
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	562
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	563 static __inline__ void
3187 e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	564 SDL_atomic_int_add(volatile int* atomic, int value)
3180 77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	565 {
3187 e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	566 InterlockedExchangeAdd(atomic, value);
3180 77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	567 }
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	568
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	569 # if (WINVER > 0X0400)
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	570 static __inline__ SDL_bool
3187 e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	571 SDL_atmoic_int_cmp_xchg(volatile int* atomic, int oldvalue, int newvalue)
3180 77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	572 {
3187 e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	573 return (SDL_bool)(InterlockedCompareExchangePointer((PVOID*)atomic,
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	574 (PVOID)newvalue,
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	575 (PVOID)oldvalue) == oldvalue);
3180 77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	576 }
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	577
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	578
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	579 static __inline__ SDL_bool
3187 e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	580 SDL_atomic_ptr_cmp_xchg(volatile void** atomic, void* oldvalue, void* newvalue)
3180 77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	581 {
3187 e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	582 return (InterlockedCompareExchangePointer(atomic, newvalue, oldvalue) == oldvalue);
3180 77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	583 }
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	584 # else /* WINVER <= 0x0400 */
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	585 # if (SIZEOF_VOIDP != 4)
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	586 # error "InterlockedCompareExchangePointer needed"
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	587 # endif
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	588
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	589 static __inline__ SDL_bool
3187 e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	590 SDL_atomic_int_cmp_xchg(volatile int* atomic, int oldvalue, int newvalue)
3180 77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	591 {
3187 e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	592 return (InterlockedCompareExchange(atomic, newvalue, oldvalue) == oldvalue);
3180 77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	593 }
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	594
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	595 static __inline__ SDL_bool
3187 e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	596 SDL_atomic_ptr_cmp_xchg(volatile void** atomic, void* oldvalue, void* newvalue)
3180 77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	597 {
3187 e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	598 return (InterlockedCompareExchange(atomic, newvalue, oldvalue) == oldvalue);
3180 77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	599 }
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	600 # endif
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	601 #else /* when all else fails */
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	602 # define SDL_ATOMIC_OPS_NOT_SUPPORTED
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	603 # warning "Atomic Ops for this platform not supported!"
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	604 static __inline__ int
3187 e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	605 SDL_atomic_int_xchg_add(volatile int* atomic, int value)
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	606 {
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	607 int rv = *atomic;
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	608 *(atomic) += value;
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	609 return rv;
3180 77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	610 }
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	611
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	612 static __inline__ SDL_bool
3187 e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	613 SDL_atomic_int_cmp_xchg(volatile int* atomic, int oldvalue, int newvalue)
3180 77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	614 {
3187 e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	615 return (*atomic == oldvalue) ?
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	616 ((*atomic = newvalue), SDL_TRUE) : SDL_FALSE;
3180 77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	617 }
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	618
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	619 static __inline__ void
3187 e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	620 SDL_atomic_int_add(volatile int* atomic, int value)
3180 77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	621 {
3187 e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	622 *atomic += value;
3180 77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	623 }
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	624 #endif /* arch & platforms */
3187 e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	625
e041d2c603fe indent is really bad at handling assembly Sam Lantinga <slouken@libsdl.org> parents: 3186 diff changeset	626 /* INDENT-ON */
3186 51750b7a966f indent Sam Lantinga <slouken@libsdl.org> parents: 3181 diff changeset	627
3180 77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	628 #ifdef ATOMIC_INT_CMP_XCHG
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	629 static __inline__ SDL_bool
3186 51750b7a966f indent Sam Lantinga <slouken@libsdl.org> parents: 3181 diff changeset	630 SDL_atomic_int_cmp_xchg(volatile int *atomic, int oldvalue, int newvalue)
3180 77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	631 {
3186 51750b7a966f indent Sam Lantinga <slouken@libsdl.org> parents: 3181 diff changeset	632 return (SDL_bool) ATOMIC_INT_CMP_XCHG(atomic, oldvalue, newvalue);
3180 77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	633 }
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	634
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	635 static __inline__ int
3186 51750b7a966f indent Sam Lantinga <slouken@libsdl.org> parents: 3181 diff changeset	636 SDL_atomic_int_xchg_add(volatile int *atomic, int value)
51750b7a966f indent Sam Lantinga <slouken@libsdl.org> parents: 3181 diff changeset	637 {
51750b7a966f indent Sam Lantinga <slouken@libsdl.org> parents: 3181 diff changeset	638 int rv;
51750b7a966f indent Sam Lantinga <slouken@libsdl.org> parents: 3181 diff changeset	639 do
51750b7a966f indent Sam Lantinga <slouken@libsdl.org> parents: 3181 diff changeset	640 rv = *atomic;
51750b7a966f indent Sam Lantinga <slouken@libsdl.org> parents: 3181 diff changeset	641 while (!ATOMIC_INT_CMP_XCHG(atomic, rv, rv + value));
51750b7a966f indent Sam Lantinga <slouken@libsdl.org> parents: 3181 diff changeset	642 return rv;
3180 77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	643 }
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	644
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	645 static __inline__ void
3186 51750b7a966f indent Sam Lantinga <slouken@libsdl.org> parents: 3181 diff changeset	646 SDL_atomic_int_add(volatile int *atomic, int value)
3180 77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	647 {
3186 51750b7a966f indent Sam Lantinga <slouken@libsdl.org> parents: 3181 diff changeset	648 int rv;
51750b7a966f indent Sam Lantinga <slouken@libsdl.org> parents: 3181 diff changeset	649 do
51750b7a966f indent Sam Lantinga <slouken@libsdl.org> parents: 3181 diff changeset	650 rv = *atomic;
51750b7a966f indent Sam Lantinga <slouken@libsdl.org> parents: 3181 diff changeset	651 while (!ATOMIC_INT_CMP_XCHG(atomic, rv, rv + value));
3180 77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	652 }
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	653 #endif /* ATOMIC_CMP_XCHG */
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	654
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	655 #ifdef ATOMIC_MEMORY_BARRIER
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	656 # define SDL_atomic_int_get(atomic) \
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	657 (ATOMIC_MEMORY_BARRIER,*(atomic))
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	658 # define SDL_atomic_int_set(atomic,value) \
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	659 (*(atomic)=value,ATOMIC_MEMORY_BARRIER)
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	660 #else
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	661 # define SDL_atomic_int_get(atomic) (*(atomic))
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	662 # define SDL_atomic_int_set(atomic, newvalue) ((void)(*(atomic) = (newvalue)))
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	663 #endif /* MEMORY_BARRIER_NEEDED */
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	664
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	665 #define SDL_atomic_int_inc(atomic) (SDL_atomic_int_add((atomic),1))
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	666 #define SDL_atomic_int_dec_test(atomic) (SDL_atomic_int_xchg_add((atomic),-1) == 1)
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	667
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	668 /* Ends C function definitions when using C++ */
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	669 #ifdef __cplusplus
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	670 /* INDENT-OFF */
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	671 }
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	672 /* INDENT-ON */
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	673 #endif
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	674
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	675 #include "close_code.h"
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	676
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	677 #endif /* _SDL_atomic_h_ */
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	678
77d6336711fc First commit for SDL atomic operations. Bob Pendleton <bob@pendleton.com> parents: diff changeset	679 /* vi: set ts=4 sw=4 expandtab: */

Mercurial > sdl-ios-xcode

annotate include/SDL_atomic.h @ 3188:102b7880543a