Add STLport 5.1.4

[polintos/scott/priv.git] / lib / c++ / stlport / sparc_atomic64.s

diff --git a/lib/c++/stlport/sparc_atomic64.s b/lib/c++/stlport/sparc_atomic64.s
new file mode 100644 (file)
index 0000000..ff2c42a
--- /dev/null
+++ b/lib/c++/stlport/sparc_atomic64.s
@@ -0,0 +1,65 @@
+        .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:
+1:
+  ldx      [%o0], %o2              ! Set the current value
+        mov      %o1, %o3                ! Set the new value
+        casx     [%o0], %o2, %o3         ! Do the compare and swap
+        cmp      %o2, %o3                ! Check whether successful
+        bne      1b                  ! Retry upon failure
+        membar  #LoadLoad | #LoadStore  ! Ensure the cas finishes before
+                                        ! returning
+        retl                            ! return
+        mov     %o2, %o0                                ! Set the new value
+        .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:
+0:
+        ldx      [%o0], %o2              ! set the current
+        addx     %o2, 0x1, %o3                   ! Increment and store current
+        casx     [%o0], %o2, %o3         ! Do the compare and swap
+        cmp     %o3, %o2                ! Check whether successful
+        bne     0b
+        membar  #LoadLoad | #LoadStore  ! Ensure the cas finishes before
+                                        ! returning
+        retl                            ! return
+        mov    %o1, %o0                                 ! Set the return value
+
+        .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:
+0:
+        ldx      [%o0], %o2              ! set the current
+        subx             %o2, 0x1, %o3                   ! decrement and store current
+        casx     [%o0], %o2, %o3         ! Do the compare and swap
+        cmp     %o3, %o2                ! Check whether successful
+        bne     0b
+        membar  #LoadLoad | #LoadStore  ! Ensure the cas finishes before
+                                        ! returning
+        retl                            ! return
+  nop
+        .size   _STLP_atomic_decrement,(.-_STLP_atomic_decrement)
+
+
+