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Approved by: benno
This commit is contained in:
Peter Grehan 2002-09-19 04:39:59 +00:00
parent 4eae112d86
commit 6e1073f023
1 changed files with 5 additions and 5 deletions
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10
sys/powerpc/include/atomic.h
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@ -57,7 +57,7 @@ atomic_set_32(volatile u_int32_t *p, u_int32_t v)
"1:\tlwarx %0, 0, %1\n\t" /* load old value */
"or %0, %0, %2\n\t" /* calculate new value */
"stwcx. %0, 0, %1\n\t" /* attempt to store */
"bne- 1\n\t" /* spin if failed */
"bne- 1b\n\t" /* spin if failed */
"eieio\n" /* drain to memory */
: "=&r" (temp)
: "r" (p), "r" (v)
@ -73,7 +73,7 @@ atomic_clear_32(volatile u_int32_t *p, u_int32_t v)
"1:\tlwarx %0, 0, %1\n\t" /* load old value */
"andc %0, %0, %2\n\t" /* calculate new value */
"stwcx. %0, 0, %1\n\t" /* attempt to store */
"bne- 1\n\t" /* spin if failed */
"bne- 1b\n\t" /* spin if failed */
"eieio\n" /* drain to memory */
: "=&r" (temp)
: "r" (p), "r" (v)
@ -89,7 +89,7 @@ atomic_add_32(volatile u_int32_t *p, u_int32_t v)
"1:\tlwarx %0, 0, %1\n\t" /* load old value */
"add %0, %0, %2\n\t" /* calculate new value */
"stwcx. %0, 0, %1\n\t" /* attempt to store */
"bne- 1\n\t" /* spin if failed */
"bne- 1b\n\t" /* spin if failed */
"eieio\n" /* Old McDonald had a farm */
: "=&r" (temp)
: "r" (p), "r" (v)
@ -105,7 +105,7 @@ atomic_subtract_32(volatile u_int32_t *p, u_int32_t v)
"1:\tlwarx %0, 0, %1\n\t" /* load old value */
"sub %0, %2, %0\n\t" /* calculate new value */
"stwcx. %0, 0, %1\n\t" /* attempt to store */
"bne- 1\n\t" /* spin if failed */
"bne- 1b\n\t" /* spin if failed */
"eieio\n" /* drain to memory */
: "=&r" (temp)
: "r" (p), "r" (v)
@ -122,7 +122,7 @@ atomic_readandclear_32(volatile u_int32_t *addr)
"1:\tlwarx %0, 0, %2\n\t" /* load old value */
"li %1, 0\n\t" /* load new value */
"stwcx. %1, 0, %2\n\t" /* attempt to store */
"bne- 1\n\t" /* spin if failed */
"bne- 1b\n\t" /* spin if failed */
"eieio\n" /* drain to memory */
: "=&r"(result), "=&r"(temp)
: "r"(addr)