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indent is really bad at handling assembly

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extra : convert_revision : svn%3Ac70aab31-4412-0410-b14c-859654838e24/trunk%403646
This commit is contained in:
Sam Lantinga 2009-06-10 13:38:19 +00:00
parent d03a7700eb
commit 388df73e0d
1 changed files with 374 additions and 279 deletions
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399
include/SDL_atomic.h
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@ -42,46 +42,63 @@ extern "C" {
/* *INDENT-ON* */ /* *INDENT-ON* */
#endif #endif
/* indent is really bad at handling assembly */
/* *INDENT-OFF* */
#if defined(__GNUC__) && (defined(i386) || defined(__i386__) || defined(__x86_64__)) #if defined(__GNUC__) && (defined(i386) || defined(__i386__) || defined(__x86_64__))
static __inline__ void static __inline__ void
SDL_atomic_int_add(volatile int *atomic, int value) SDL_atomic_int_add(volatile int* atomic, int value)
{ {
__asm__ __volatile__("lock;" "addl %1, %0":"=m"(*atomic) __asm__ __volatile__("lock;"
:"ir"(value), "m"(*atomic)); "addl %1, %0"
: "=m" (*atomic)
: "ir" (value),
"m" (*atomic));
} }
static __inline__ int static __inline__ int
SDL_atomic_int_xchg_add(volatile int *atomic, int value) SDL_atomic_int_xchg_add(volatile int* atomic, int value)
{ {
int rv; int rv;
__asm__ __volatile__("lock;" "xaddl %0, %1":"=r"(rv), "=m"(*atomic) __asm__ __volatile__("lock;"
:"0"(value), "m"(*atomic)); "xaddl %0, %1"
: "=r" (rv),
"=m" (*atomic)
: "0" (value),
"m" (*atomic));
return rv; return rv;
} }
static __inline__ SDL_bool static __inline__ SDL_bool
SDL_atomic_int_cmp_xchg(volatile int *atomic, int oldvalue, int newvalue) SDL_atomic_int_cmp_xchg(volatile int* atomic, int oldvalue, int newvalue)
{ {
int rv; int rv;
__asm__ __volatile__("lock;" "cmpxchgl %2, %1":"=a"(rv), "=m"(*atomic) __asm__ __volatile__("lock;"
:"r"(newvalue), "m"(*atomic), "0"(oldvalue)); "cmpxchgl %2, %1"
return (SDL_bool) (rv == oldvalue); : "=a" (rv),
"=m" (*atomic)
: "r" (newvalue),
"m" (*atomic),
"0" (oldvalue));
return (SDL_bool)(rv == oldvalue);
} }
static __inline__ SDL_bool static __inline__ SDL_bool
SDL_atomic_ptr_cmp_xchg(volatile void **atomic, void *oldvalue, SDL_atomic_ptr_cmp_xchg(volatile void** atomic, void* oldvalue, void* newvalue)
void *newvalue)
{ {
void *rv; void* rv;
__asm__ __volatile__("lock;" __asm__ __volatile__("lock;"
# if defined(__x86_64__) # if defined(__x86_64__)
"cmpxchgq %q2, %1" "cmpxchgq %q2, %1"
# else # else
"cmpxchgl %2, %1" "cmpxchgl %2, %1"
# endif # endif
:"=a"(rv), "=m"(*atomic) : "=a" (rv),
:"r"(newvalue), "m"(*atomic), "0"(oldvalue)); "=m" (*atomic)
return (SDL_bool) (rv == oldvalue); : "r" (newvalue),
"m" (*atomic),
"0" (oldvalue));
return (SDL_bool)(rv == oldvalue);
} }
#elif defined(__GNUC__) && defined(__alpha__) #elif defined(__GNUC__) && defined(__alpha__)
# define ATOMIC_MEMORY_BARRIER (__asm__ __volatile__ ("mb" : : : "memory")) # define ATOMIC_MEMORY_BARRIER (__asm__ __volatile__ ("mb" : : : "memory"))
@ -108,11 +125,10 @@ SDL_atomic_ptr_cmp_xchg(volatile void **atomic, void *oldvalue,
# if (SIZEOF_VOIDP == 4) # if (SIZEOF_VOIDP == 4)
static __inline__ SDL_bool static __inline__ SDL_bool
SDL_atomic_ptr_cmp_xchg(volatile void **atomic, void *oldvalue, SDL_atomic_ptr_cmp_xchg(volatile void** atomic, void* oldvalue, void* newvalue)
void *newvalue)
{ {
int rv; int rv;
void *prev; void* prev;
__asm__ __volatile__(" mb\n" __asm__ __volatile__(" mb\n"
"1: ldl_l %0,%2\n" "1: ldl_l %0,%2\n"
" cmpeq %0,%3,%1\n" " cmpeq %0,%3,%1\n"
@ -120,18 +136,22 @@ SDL_atomic_ptr_cmp_xchg(volatile void **atomic, void *oldvalue,
" mov %4,%1\n" " mov %4,%1\n"
" stl_c %1,%2\n" " stl_c %1,%2\n"
" beq %1,1b\n" " beq %1,1b\n"
" mb\n" "2:":"=&r"(prev), "=&r"(rv) " mb\n"
:"m"(*atomic), "Ir"(oldvalue), "Ir"(newvalue) "2:"
:"memory"); : "=&r" (prev),
return (SDL_bool) (rv != 0); "=&r" (rv)
: "m" (*atomic),
"Ir" (oldvalue),
"Ir" (newvalue)
: "memory");
return (SDL_bool)(rv != 0);
} }
# elif (SIZEOF_VOIDP == 8) # elif (SIZEOF_VOIDP == 8)
static __inline__ SDL_bool static __inline__ SDL_bool
SDL_atomic_ptr_cmp_xchg(volatile void **atomic, void *oldvalue, SDL_atomic_ptr_cmp_xchg(volatile void** atomic, void* oldvalue, void* newvalue)
void *newvalue)
{ {
int rv; int rv;
void *prev; void* prev;
__asm__ __volatile__(" mb\n" __asm__ __volatile__(" mb\n"
"1: ldq_l %0,%2\n" "1: ldq_l %0,%2\n"
" cmpeq %0,%3,%1\n" " cmpeq %0,%3,%1\n"
@ -139,10 +159,15 @@ SDL_atomic_ptr_cmp_xchg(volatile void **atomic, void *oldvalue,
" mov %4,%1\n" " mov %4,%1\n"
" stq_c %1,%2\n" " stq_c %1,%2\n"
" beq %1,1b\n" " beq %1,1b\n"
" mb\n" "2:":"=&r"(prev), "=&r"(rv) " mb\n"
:"m"(*atomic), "Ir"(oldvalue), "Ir"(newvalue) "2:"
:"memory"); : "=&r" (prev),
return (SDL_bool) (rv != 0); "=&r" (rv)
: "m" (*atomic),
"Ir" (oldvalue),
"Ir" (newvalue)
: "memory");
return (SDL_bool)(rv != 0);
} }
# else # else
# error "Your system has an unsupported pointer size" # error "Your system has an unsupported pointer size"
@ -163,25 +188,32 @@ SDL_atomic_ptr_cmp_xchg(volatile void **atomic, void *oldvalue,
# if (SIZEOF_VOIDP == 4) # if (SIZEOF_VOIDP == 4)
static __inline__ SDL_bool static __inline__ SDL_bool
SDL_atomic_ptr_cmp_xchg(volatile void **atomic, void *oldvalue, SDL_atomic_ptr_cmp_xchg(volatile void** atomic, void* oldvalue, void* newvalue)
void *newvalue)
{ {
void *rv; void* rv;
__asm__ __volatile__("cas [%4], %2, %0":"=r"(rv), "=m"(*atomic) __asm__ __volatile__("cas [%4], %2, %0"
:"r"(oldvalue), : "=r" (rv),
"m"(*atomic), "r"(atomic), "0"(newvalue)); "=m" (*atomic)
return (SDL_bool) (rv == oldvalue); : "r" (oldvalue),
"m" (*atomic),
"r" (atomic),
"0" (newvalue));
return (SDL_bool)(rv == oldvalue);
} }
# elif (SIZEOF_VOIDP == 8) # elif (SIZEOF_VOIDP == 8)
static __inline__ SDL_bool static __inline__ SDL_bool
SDL_atomic_ptr_cmp_xchg(volatile void **atomic, void *oldvalue, SDL_atomic_ptr_cmp_xchg(volatile void** atomic, void* oldvalue, void* newvalue)
void *newvalue)
{ {
void *rv; void* rv;
void **a = atomic; void** a = atomic;
__asm__ __volatile__("casx [%4], %2, %0":"=r"(rv), "=m"(*a) __asm__ __volatile__("casx [%4], %2, %0"
:"r"(oldvalue), "m"(*a), "r"(a), "0"(newvalue)); : "=r" (rv),
return (SDL_bool) (rv == oldvalue); "=m" (*a)
: "r" (oldvalue),
"m" (*a),
"r" (a),
"0" (newvalue));
return (SDL_bool)(rv == oldvalue);
} }
# else # else
# error "Your system has an unsupported pointer size" # error "Your system has an unsupported pointer size"
@ -190,33 +222,45 @@ SDL_atomic_ptr_cmp_xchg(volatile void **atomic, void *oldvalue,
# define ATOMIC_MEMORY_BARRIER \ # define ATOMIC_MEMORY_BARRIER \
(__asm__ __volatile__ ("sync" : : : "memory")) (__asm__ __volatile__ ("sync" : : : "memory"))
static __inline__ void static __inline__ void
SDL_atomic_int_add(volatile int *atomic, int value) SDL_atomic_int_add(volatile int* atomic, int value)
{ {
int rv, tmp; int rv,tmp;
__asm__ __volatile__("1: lwarx %0, 0, %3\n" __asm__ __volatile__("1: lwarx %0, 0, %3\n"
" add %1, %0, %4\n" " add %1, %0, %4\n"
" stwcx. %1, 0, %3\n" " stwcx. %1, 0, %3\n"
" bne- 1b":"=&b"(rv), "=&r"(tmp), "=m"(*atomic) " bne- 1b"
:"b"(atomic), "r"(value), "m"(*atomic) : "=&b" (rv),
:"cr0", "memory"); "=&r" (tmp),
"=m" (*atomic)
: "b" (atomic),
"r" (value),
"m" (*atomic)
: "cr0",
"memory");
} }
static __inline__ int static __inline__ int
SDL_atomic_int_xchg_add(volatile int *atomic, int value) SDL_atomic_int_xchg_add(volatile int* atomic, int value)
{ {
int rv, tmp; int rv,tmp;
__asm__ __volatile__("1: lwarx %0, 0, %3\n" __asm__ __volatile__("1: lwarx %0, 0, %3\n"
" add %1, %0, %4\n" " add %1, %0, %4\n"
" stwcx. %1, 0, %3\n" " stwcx. %1, 0, %3\n"
" bne- 1b":"=&b"(rv), "=&r"(tmp), "=m"(*atomic) " bne- 1b"
:"b"(atomic), "r"(value), "m"(*atomic) : "=&b" (rv),
:"cr0", "memory"); "=&r" (tmp),
"=m" (*atomic)
: "b" (atomic),
"r" (value),
"m" (*atomic)
: "cr0",
"memory");
return rv; return rv;
} }
# if (SIZEOF_VOIDP == 4) # if (SIZEOF_VOIDP == 4)
static __inline__ SDL_bool static __inline__ SDL_bool
SDL_atomic_int_cmp_xchg(volatile int *atomic, int oldvalue, int newvalue) SDL_atomic_int_cmp_xchg(volatile int* atomic, int oldvalue, int newvalue)
{ {
int rv; int rv;
__asm__ __volatile__(" sync\n" __asm__ __volatile__(" sync\n"
@ -224,29 +268,39 @@ SDL_atomic_int_cmp_xchg(volatile int *atomic, int oldvalue, int newvalue)
" subf. %0, %2, %0\n" " subf. %0, %2, %0\n"
" bne 2f\n" " bne 2f\n"
" stwcx. %3, 0, %1\n" " stwcx. %3, 0, %1\n"
" bne- 1b\n" "2: isync":"=&r"(rv) " bne- 1b\n"
:"b"(atomic), "r"(oldvalue), "r":"cr0", "memory"); "2: isync"
return (SDL_bool) (rv == 0); : "=&r" (rv)
: "b" (atomic),
"r" (oldvalue),
"r"
: "cr0",
"memory");
return (SDL_bool)(rv == 0);
} }
static __inline__ SDL_bool static __inline__ SDL_bool
SDL_atomic_ptr_cmp_xchg(volatile void **atomic, void *oldvalue, SDL_atomic_ptr_cmp_xchg(volatile void** atomic, void* oldvalue, void* newvalue)
void *newvalue)
{ {
void *rv; void* rv;
__asm__ __volatile__("sync\n" __asm__ __volatile__("sync\n"
"1: lwarx %0, 0, %1\n" "1: lwarx %0, 0, %1\n"
" subf. %0, %2, %0\n" " subf. %0, %2, %0\n"
" bne 2f\n" " bne 2f\n"
" stwcx. %3, 0, %1\n" " stwcx. %3, 0, %1\n"
" bne- 1b\n" "2: isync":"=&r"(rv) " bne- 1b\n"
:"b"(atomic), "r"(oldvalue), "r"(newvalue) "2: isync"
:"cr0", "memory"); : "=&r" (rv)
return (SDL_bool) (rv == 0); : "b" (atomic),
"r" (oldvalue),
"r" (newvalue)
: "cr0",
"memory");
return (SDL_bool)(rv == 0);
} }
# elif (SIZEOF_VOIDP == 8) # elif (SIZEOF_VOIDP == 8)
static __inline__ SDL_bool static __inline__ SDL_bool
SDL_atomic_int_cmp_xchg(volatile int *atomic, int oldvalue, int newvalue) SDL_atomic_int_cmp_xchg(volatile int* atomic, int oldvalue, int newvalue)
{ {
int rv; int rv;
__asm__ __volatile__(" sync\n" __asm__ __volatile__(" sync\n"
@ -255,25 +309,35 @@ SDL_atomic_int_cmp_xchg(volatile int *atomic, int oldvalue, int newvalue)
" subf. %0, %2, %0\n" " subf. %0, %2, %0\n"
" bne 2f\n" " bne 2f\n"
" stwcx. %3, 0, %1\n" " stwcx. %3, 0, %1\n"
" bne- 1b\n" "2: isync":"=&r"(rv) " bne- 1b\n"
:"b"(atomic), "r"(oldvalue), "r":"cr0", "memory"); "2: isync"
return (SDL_bool) (rv == 0); : "=&r" (rv)
: "b" (atomic),
"r" (oldvalue),
"r"
: "cr0",
"memory");
return (SDL_bool)(rv == 0);
} }
static __inline__ SDL_bool static __inline__ SDL_bool
SDL_atomic_ptr_cmp_xchg(volatile void **atomic, void *oldvalue, SDL_atomic_ptr_cmp_xchg(volatile void** atomic, void* oldvalue, void* newvalue)
void *newvalue)
{ {
void *rv; void* rv;
__asm__ __volatile__("sync\n" __asm__ __volatile__("sync\n"
"1: ldarx %0, 0, %1\n" "1: ldarx %0, 0, %1\n"
" subf. %0, %2, %0\n" " subf. %0, %2, %0\n"
" bne 2f\n" " bne 2f\n"
" stdcx. %3, 0, %1\n" " stdcx. %3, 0, %1\n"
" bne- 1b\n" "2: isync":"=&r"(rv) " bne- 1b\n"
:"b"(atomic), "r"(oldvalue), "r"(newvalue) "2: isync"
:"cr0", "memory"); : "=&r" (rv)
return (SDL_bool) (rv == 0); : "b" (atomic),
"r" (oldvalue),
"r" (newvalue)
: "cr0",
"memory");
return (SDL_bool)(rv == 0);
} }
# else # else
# error "Your system has an unsupported pointer size" # error "Your system has an unsupported pointer size"
@ -290,9 +354,9 @@ SDL_atomic_ptr_cmp_xchg(volatile void **atomic, void *oldvalue,
(__sync_bool_compare_and_swap((long*)(atomic),(long)(oldvalue),(long)(newvalue))) (__sync_bool_compare_and_swap((long*)(atomic),(long)(oldvalue),(long)(newvalue)))
#elif defined(__GNUC__) && defined(__LINUX__) && (defined(__mips__) || defined(__MIPS__)) #elif defined(__GNUC__) && defined(__LINUX__) && (defined(__mips__) || defined(__MIPS__))
static __inline__ int static __inline__ int
SDL_atomic_int_xchg_add(volatile int *atomic, int value) SDL_atomic_int_xchg_add(volatile int* atomic, int value)
{ {
int rv, tmp; int rv,tmp;
__asm__ __volatile__("1: \n" __asm__ __volatile__("1: \n"
".set push \n" ".set push \n"
".set mips2 \n" ".set mips2 \n"
@ -300,15 +364,18 @@ SDL_atomic_int_xchg_add(volatile int *atomic, int value)
"addu %1,%4,%0 \n" "addu %1,%4,%0 \n"
"sc %1,%2 \n" "sc %1,%2 \n"
".set pop \n" ".set pop \n"
"beqz %1,1b \n":"=&r"(rv), "beqz %1,1b \n"
"=&r"(tmp), "=m"(*atomic) : "=&r" (rv),
:"m"(*atomic), "r"(value) "=&r" (tmp),
:"memory"); "=m" (*atomic)
: "m" (*atomic),
"r" (value)
: "memory");
return rv; return rv;
} }
static __inline__ void static __inline__ void
SDL_atomic_int_add(volatile int *atomic, int value) SDL_atomic_int_add(volatile int* atomic, int value)
{ {
int rv; int rv;
__asm__ __volatile__("1: \n" __asm__ __volatile__("1: \n"
@ -318,13 +385,16 @@ SDL_atomic_int_add(volatile int *atomic, int value)
"addu %0,%3,%0 \n" "addu %0,%3,%0 \n"
"sc %0,%1 \n" "sc %0,%1 \n"
".set pop \n" ".set pop \n"
"beqz %0,1b \n":"=&r"(rv), "=m"(*atomic) "beqz %0,1b \n"
:"m"(*atomic), "r"(value) : "=&r" (rv),
:"memory"); "=m" (*atomic)
: "m" (*atomic),
"r" (value)
: "memory");
} }
static __inline__ SDL_bool static __inline__ SDL_bool
SDL_atomic_int_cmp_xchg(volatile int *atomic, int oldvalue, int newvalue) SDL_atomic_int_cmp_xchg(volatile int* atomic, int oldvalue, int newvalue)
{ {
int rv; int rv;
__asm__ __volatile__(" .set push \n" __asm__ __volatile__(" .set push \n"
@ -339,25 +409,30 @@ SDL_atomic_int_cmp_xchg(volatile int *atomic, int oldvalue, int newvalue)
" beqz $1, 1b \n" " beqz $1, 1b \n"
" sync \n" " sync \n"
"2: \n" "2: \n"
" .set pop \n":"=&r"(rv), "=R"(*atomic) " .set pop \n"
:"R"(*atomic), "Jr"(oldvalue), "Jr"(newvalue) : "=&r" (rv),
:"memory"); "=R" (*atomic)
return (SDL_bool) rv; : "R" (*atomic),
"Jr" (oldvalue),
"Jr" (newvalue)
: "memory");
return (SDL_bool)rv;
} }
static __inline__ SDL_bool static __inline__ SDL_bool
SDL_atomic_ptr_cmp_xchg(volatile void **atomic, void *oldvalue, SDL_atomic_ptr_cmp_xchg(volatile void** atomic, void* oldvalue, void* newvalue)
void *newvalue)
{ {
int rv; int rv;
__asm__ __volatile__(" .set push \n" __asm__ __volatile__(" .set push \n"
" .set noat \n" " .set mips3 \n" " .set noat \n"
" .set mips3 \n"
# if defined(__mips64) # if defined(__mips64)
"1: lld %0, %2 \n" "1: lld %0, %2 \n"
# else # else
"1: ll %0, %2 \n" "1: ll %0, %2 \n"
# endif # endif
" bne %0, %z3, 2f \n" " move $1, %z4 \n" " bne %0, %z3, 2f \n"
" move $1, %z4 \n"
# if defined(__mips64) # if defined(__mips64)
" sc $1, %1 \n" " sc $1, %1 \n"
# else # else
@ -366,54 +441,74 @@ SDL_atomic_ptr_cmp_xchg(volatile void **atomic, void *oldvalue,
" beqz $1, 1b \n" " beqz $1, 1b \n"
" sync \n" " sync \n"
"2: \n" "2: \n"
" .set pop \n":"=&r"(rv), "=R"(*atomic) " .set pop \n"
:"R"(*atomic), "Jr"(oldvalue), "Jr"(newvalue) : "=&r" (rv),
:"memory"); "=R" (*atomic)
return (SDL_bool) rv; : "R" (*atomic),
"Jr" (oldvalue),
"Jr" (newvalue)
: "memory");
return (SDL_bool)rv;
} }
#elif defined(__GNUC__) && defined(__m68k__) #elif defined(__GNUC__) && defined(__m68k__)
static __inline__ int static __inline__ int
SDL_atomic_int_xchg_add(volatile int *atomic, int value) SDL_atomic_int_xchg_add(volatile int* atomic, int value)
{ {
int rv = *atomic; int rv = *atomic;
int tmp; int tmp;
__asm__ __volatile__("1: move%.l %0,%1 \n" __asm__ __volatile__("1: move%.l %0,%1 \n"
" add%.l %2,%1 \n" " add%.l %2,%1 \n"
" cas%.l %0,%1,%3 \n" " cas%.l %0,%1,%3 \n"
" jbne 1b \n":"=d"(rv), "=&d"(tmp) " jbne 1b \n"
:"d"(value), "m"(*atomic), "0"(rv) : "=d" (rv),
:"memory"); "=&d" (tmp)
return (SDL_bool) rv; : "d" (value),
"m" (*atomic),
"0" (rv)
: "memory");
return (SDL_bool)rv;
} }
static __inline__ void static __inline__ void
SDL_atomic_int_add(volatile int *atomic, int value) SDL_atomic_int_add(volatile int* atomic, int value)
{ {
__asm__ __volatile__("add%.l %0,%1"::"id"(value), "m"(*atomic) __asm__ __volatile__("add%.l %0,%1"
:"memory"); :
: "id" (value),
"m" (*atomic)
: "memory");
} }
static __inline__ SDL_bool static __inline__ SDL_bool
SDL_atomic_int_cmp_xchg(volatile int *atomic, int oldvalue, int newvalue) SDL_atomic_int_cmp_xchg(volatile int* atomic, int oldvalue, int newvalue)
{ {
char rv; char rv;
int readvalue; int readvalue;
__asm__ __volatile__("cas%.l %2,%3,%1\n" __asm__ __volatile__("cas%.l %2,%3,%1\n"
"seq %0":"=dm"(rv), "=m"(*atomic), "=d"(readvalue) "seq %0"
:"d"(newvalue), "m"(*atomic), "2"(oldvalue)); : "=dm" (rv),
return (SDL_bool) rv; "=m" (*atomic),
"=d" (readvalue)
: "d" (newvalue),
"m" (*atomic),
"2" (oldvalue));
return (SDL_bool)rv;
} }
static __inline__ SDL_bool static __inline__ SDL_bool
SDL_atomic_ptr_cmp_xchg(volatile void **atomic, void *oldvalue, SDL_atomic_ptr_cmp_xchg(volatile void** atomic, void* oldvalue, void* newvalue)
void *newvalue)
{ {
char rv; char rv;
int readvalue; int readvalue;
__asm__ __volatile__("cas%.l %2,%3,%1\n" __asm__ __volatile__("cas%.l %2,%3,%1\n"
"seq %0":"=dm"(rv), "=m"(*atomic), "=d"(readvalue) "seq %0"
:"d"(newvalue), "m"(*atomic), "2"(oldvalue)); : "=dm" (rv),
return (SDL_bool) rv; "=m" (*atomic),
"=d" (readvalue)
: "d" (newvalue),
"m" (*atomic),
"2" (oldvalue));
return (SDL_bool)rv;
} }
#elif defined(__GNUC__) && defined(__s390__) #elif defined(__GNUC__) && defined(__s390__)
# define ATOMIC_INT_CMP_XCHG(atomic,oldvalue,newvalue) \ # define ATOMIC_INT_CMP_XCHG(atomic,oldvalue,newvalue) \
@ -429,26 +524,30 @@ SDL_atomic_ptr_cmp_xchg(volatile void **atomic, void *oldvalue,
}) })
# if (SIZEOF_VOIDP == 4) # if (SIZEOF_VOIDP == 4)
static __inline__ SDL_bool static __inline__ SDL_bool
SDL_atomic_ptr_cmp_xchg(volatile void **atomic, void *oldvalue, SDL_atomic_ptr_cmp_xchg(volatile void** atomic, void* oldvalue, void* newvalue)
void *newvalue)
{ {
void *rv = oldvalue; void* rv = oldvalue;
__asm__ __volatile__("cs %0, %2, %1":"+d"(rv), "=Q"(*atomic) __asm__ __volatile__("cs %0, %2, %1"
:"d"(newvalue), "m"(*atomic) : "+d" (rv),
:"cc"); "=Q" (*atomic)
return (SDL_bool) (rv == oldvalue); : "d" (newvalue),
"m" (*atomic)
: "cc");
return (SDL_bool)(rv == oldvalue);
} }
# elif (SIZEOF_VOIDP == 8) # elif (SIZEOF_VOIDP == 8)
static __inline__ SDL_bool static __inline__ SDL_bool
SDL_atomic_ptr_cmp_xchg(volatile void **atomic, void *oldvalue, SDL_atomic_ptr_cmp_xchg(volatile void** atomic, void* oldvalue, void* newvalue)
void *newvalue)
{ {
void *rv = oldvalue; void* rv = oldvalue;
void **a = atomic; void** a = atomic;
__asm__ __volatile__("csg %0, %2, %1":"+d"(rv), "=Q"(*a) __asm__ __volatile__("csg %0, %2, %1"
:"d"((long) (newvalue)), "m"(*a) : "+d" (rv),
:"cc"); "=Q" (*a)
return (SDL_bool) (rv == oldvalue); : "d" ((long)(newvalue)),
"m" (*a)
: "cc");
return (SDL_bool)(rv == oldvalue);
} }
# else # else
# error "Your system has an unsupported pointer size" # error "Your system has an unsupported pointer size"
@ -456,34 +555,31 @@ SDL_atomic_ptr_cmp_xchg(volatile void **atomic, void *oldvalue,
#elif defined(__WIN32__) #elif defined(__WIN32__)
# include <windows.h> # include <windows.h>
static __inline__ int static __inline__ int
SDL_atomic_int_xchg_add(volatile int *atomic, int value) SDL_atomic_int_xchg_add(volatile int* atomic, int value)
{ {
return InterlockedExchangeAdd(atomic, value); return InterlockedExchangeAdd(atomic, value);
} }
static __inline__ void static __inline__ void
SDL_atomic_int_add(volatile int *atomic, int value) SDL_atomic_int_add(volatile int* atomic, int value)
{ {
InterlockedExchangeAdd(atomic, value); InterlockedExchangeAdd(atomic, value);
} }
# if (WINVER > 0X0400) # if (WINVER > 0X0400)
static __inline__ SDL_bool static __inline__ SDL_bool
SDL_atmoic_int_cmp_xchg(volatile int *atomic, int oldvalue, int newvalue) SDL_atmoic_int_cmp_xchg(volatile int* atomic, int oldvalue, int newvalue)
{ {
return (SDL_bool) (InterlockedCompareExchangePointer((PVOID *) atomic, return (SDL_bool)(InterlockedCompareExchangePointer((PVOID*)atomic,
(PVOID) newvalue, (PVOID)newvalue,
(PVOID) oldvalue) == (PVOID)oldvalue) == oldvalue);
oldvalue);
} }
static __inline__ SDL_bool static __inline__ SDL_bool
SDL_atomic_ptr_cmp_xchg(volatile void **atomic, void *oldvalue, SDL_atomic_ptr_cmp_xchg(volatile void** atomic, void* oldvalue, void* newvalue)
void *newvalue)
{ {
return (InterlockedCompareExchangePointer(atomic, newvalue, oldvalue) == return (InterlockedCompareExchangePointer(atomic, newvalue, oldvalue) == oldvalue);
oldvalue);
} }
# else /* WINVER <= 0x0400 */ # else /* WINVER <= 0x0400 */
# if (SIZEOF_VOIDP != 4) # if (SIZEOF_VOIDP != 4)
@ -491,25 +587,22 @@ SDL_atomic_ptr_cmp_xchg(volatile void **atomic, void *oldvalue,
# endif # endif
static __inline__ SDL_bool static __inline__ SDL_bool
SDL_atomic_int_cmp_xchg(volatile int *atomic, int oldvalue, int newvalue) SDL_atomic_int_cmp_xchg(volatile int* atomic, int oldvalue, int newvalue)
{ {
return (InterlockedCompareExchange(atomic, newvalue, oldvalue) == return (InterlockedCompareExchange(atomic, newvalue, oldvalue) == oldvalue);
oldvalue);
} }
static __inline__ SDL_bool static __inline__ SDL_bool
SDL_atomic_ptr_cmp_xchg(volatile void **atomic, void *oldvalue, SDL_atomic_ptr_cmp_xchg(volatile void** atomic, void* oldvalue, void* newvalue)
void *newvalue)
{ {
return (InterlockedCompareExchange(atomic, newvalue, oldvalue) == return (InterlockedCompareExchange(atomic, newvalue, oldvalue) == oldvalue);
oldvalue);
} }
# endif # endif
#else /* when all else fails */ #else /* when all else fails */
# define SDL_ATOMIC_OPS_NOT_SUPPORTED # define SDL_ATOMIC_OPS_NOT_SUPPORTED
# warning "Atomic Ops for this platform not supported!" # warning "Atomic Ops for this platform not supported!"
static __inline__ int static __inline__ int
SDL_atomic_int_xchg_add(volatile int *atomic, int value) SDL_atomic_int_xchg_add(volatile int* atomic, int value)
{ {
int rv = *atomic; int rv = *atomic;
*(atomic) += value; *(atomic) += value;
@ -517,19 +610,21 @@ SDL_atomic_int_xchg_add(volatile int *atomic, int value)
} }
static __inline__ SDL_bool static __inline__ SDL_bool
SDL_atomic_int_cmp_xchg(volatile int *atomic, int oldvalue, int newvalue) SDL_atomic_int_cmp_xchg(volatile int* atomic, int oldvalue, int newvalue)
{ {
return (*atomic == oldvalue) ? return (*atomic == oldvalue) ?
((*atomic = newvalue), SDL_TRUE) : SDL_FALSE; ((*atomic = newvalue), SDL_TRUE) : SDL_FALSE;
} }
static __inline__ void static __inline__ void
SDL_atomic_int_add(volatile int *atomic, int value) SDL_atomic_int_add(volatile int* atomic, int value)
{ {
*atomic += value; *atomic += value;
} }
#endif /* arch & platforms */ #endif /* arch & platforms */
/* *INDENT-ON* */
#ifdef ATOMIC_INT_CMP_XCHG #ifdef ATOMIC_INT_CMP_XCHG
static __inline__ SDL_bool static __inline__ SDL_bool
SDL_atomic_int_cmp_xchg(volatile int *atomic, int oldvalue, int newvalue) SDL_atomic_int_cmp_xchg(volatile int *atomic, int oldvalue, int newvalue)