diff options
Diffstat (limited to 'src/sparc_atomic.s')
| -rw-r--r-- | src/sparc_atomic.s | 68 |
1 files changed, 0 insertions, 68 deletions
diff --git a/src/sparc_atomic.s b/src/sparc_atomic.s deleted file mode 100644 index 67e41d6..0000000 --- a/src/sparc_atomic.s +++ /dev/null @@ -1,68 +0,0 @@ - .section ".text",#alloc,#execinstr - .align 8 - .skip 16 - - - /* - ** int _STLP_atomic_exchange (void *pvalue, int value) - */ - - .type _STLP_atomic_exchange,#function - .global _STLP_atomic_exchange - .align 8 - -_STLP_atomic_exchange: -0: - ld [%o0], %o2 ! Set the current value - mov %o1, %o3 ! Set the new value -! swap [%o0], %o3 ! Do the compare and swap - cas [%o0], %o2, %o3 - cmp %o2, %o3 ! Check whether successful - bne 0b ! Retry upon failure - stbar - mov %o2, %o0 ! Set the new value - retl ! return - nop - .size _STLP_atomic_exchange,(.-_STLP_atomic_exchange) - - /* int _STLP_atomic_increment (void *pvalue) */ - - .type _STLP_atomic_increment,#function - .global _STLP_atomic_increment - .align 8 -_STLP_atomic_increment: -1: - ld [%o0], %o2 ! set the current - add %o2, 0x1, %o3 ! Increment and store current -! swap [%o0], %o3 ! Do the compare and swap - cas [%o0], %o2, %o3 - cmp %o3, %o2 ! Check whether successful - bne 1b ! Retry if we failed. - membar #LoadLoad | #LoadStore ! Ensure the cas finishes before - ! returning - nop - retl ! return - nop - - .size _STLP_atomic_increment,(.-_STLP_atomic_increment) - - - /* int _STLP_atomic_decrement (void *pvalue) */ - .type _STLP_atomic_decrement,#function - .global _STLP_atomic_decrement - .align 8 - -_STLP_atomic_decrement: -2: - ld [%o0], %o2 ! set the current - sub %o2, 0x1, %o3 ! decrement and store current -! swap [%o0], %o3 ! Do the compare and swap - cas [%o0], %o2, %o3 - cmp %o3, %o2 ! Check whether successful - bne 2b ! Retry if we failed. - membar #LoadLoad | #LoadStore ! Ensure the cas finishes before - nop - ! returning - retl ! return - nop - .size _STLP_atomic_decrement,(.-_STLP_atomic_decrement) |