icculus/SDL-audio-capture: include/SDL_atomic.h@e041d2c603fe (annotated)

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: */

author	Sam Lantinga <slouken@libsdl.org>
	Wed, 10 Jun 2009 13:38:19 +0000
changeset 3187	e041d2c603fe
parent 3186	51750b7a966f
child 3199	3e1bf2b8bd81
permissions	-rw-r--r--