1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/build/stlport/src/sparc_atomic64.s Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,65 @@
1.4 + .section ".text",#alloc,#execinstr
1.5 + .align 8
1.6 + .skip 16
1.7 +
1.8 +! int _STLP_atomic_exchange (void *pvalue, int value)
1.9 +!
1.10 +
1.11 + .type _STLP_atomic_exchange,#function
1.12 + .global _STLP_atomic_exchange
1.13 + .align 8
1.14 +
1.15 +_STLP_atomic_exchange:
1.16 +1:
1.17 + ldx [%o0], %o2 ! Set the current value
1.18 + mov %o1, %o3 ! Set the new value
1.19 + casx [%o0], %o2, %o3 ! Do the compare and swap
1.20 + cmp %o2, %o3 ! Check whether successful
1.21 + bne 1b ! Retry upon failure
1.22 + membar #LoadLoad | #LoadStore ! Ensure the cas finishes before
1.23 + ! returning
1.24 + retl ! return
1.25 + mov %o2, %o0 ! Set the new value
1.26 + .size _STLP_atomic_exchange,(.-_STLP_atomic_exchange)
1.27 +
1.28 +
1.29 +! int _STLP_atomic_increment (void *pvalue)
1.30 +
1.31 + .type _STLP_atomic_increment,#function
1.32 + .global _STLP_atomic_increment
1.33 + .align 8
1.34 +_STLP_atomic_increment:
1.35 +0:
1.36 + ldx [%o0], %o2 ! set the current
1.37 + addx %o2, 0x1, %o3 ! Increment and store current
1.38 + casx [%o0], %o2, %o3 ! Do the compare and swap
1.39 + cmp %o3, %o2 ! Check whether successful
1.40 + bne 0b
1.41 + membar #LoadLoad | #LoadStore ! Ensure the cas finishes before
1.42 + ! returning
1.43 + retl ! return
1.44 + mov %o1, %o0 ! Set the return value
1.45 +
1.46 + .size _STLP_atomic_increment,(.-_STLP_atomic_increment)
1.47 +
1.48 +
1.49 +! /* int _STLP_atomic_decrement (void *pvalue) */
1.50 + .type _STLP_atomic_decrement,#function
1.51 + .global _STLP_atomic_decrement
1.52 + .align 8
1.53 +
1.54 +_STLP_atomic_decrement:
1.55 +0:
1.56 + ldx [%o0], %o2 ! set the current
1.57 + subx %o2, 0x1, %o3 ! decrement and store current
1.58 + casx [%o0], %o2, %o3 ! Do the compare and swap
1.59 + cmp %o3, %o2 ! Check whether successful
1.60 + bne 0b
1.61 + membar #LoadLoad | #LoadStore ! Ensure the cas finishes before
1.62 + ! returning
1.63 + retl ! return
1.64 + nop
1.65 + .size _STLP_atomic_decrement,(.-_STLP_atomic_decrement)
1.66 +
1.67 +
1.68 +
