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| author | ianh <ianh@13f79535-47bb-0310-9956-ffa450edef68> | 2002-02-19 23:45:06 +0000 |
|---|---|---|
| committer | ianh <ianh@13f79535-47bb-0310-9956-ffa450edef68> | 2002-02-19 23:45:06 +0000 |
| commit | 70212b146b2823174a0b801096c81b05453aeafb (patch) | |
| tree | 07281204823fc7fa3c129867165cb2af262efabd /atomic | |
| parent | 6e81a9cc203db8d97fdccc356c8840c764356976 (diff) | |
| download | libapr-70212b146b2823174a0b801096c81b05453aeafb.tar.gz | |
enable sun-sparc specific code
git-svn-id: http://svn.apache.org/repos/asf/apr/apr/trunk@63028 13f79535-47bb-0310-9956-ffa450edef68
Diffstat (limited to 'atomic')
| -rw-r--r-- | atomic/solaris_sparc/apr_atomic_sparc.s | 37 |
1 files changed, 30 insertions, 7 deletions
diff --git a/atomic/solaris_sparc/apr_atomic_sparc.s b/atomic/solaris_sparc/apr_atomic_sparc.s index f17cb2bbe..95f438d81 100644 --- a/atomic/solaris_sparc/apr_atomic_sparc.s +++ b/atomic/solaris_sparc/apr_atomic_sparc.s @@ -71,19 +71,20 @@ ! ENTRY(apr_atomic_add_sparc) - ld [%o0], %o2 + ld [%o0], %o2 ! set o2 to current value _apr_atomic_add_sparc_loop: - add %o2, %o1, %o3 - cas [%o0], %o2, %o3 - cmp %o2, %o3 - bne,a _apr_atomic_add_sparc_loop - ld [%o0], %o2 + add %o2, %o1, %o3 ! o3 = o2 + o1 + cas [%o0], %o2, %o3 ! if cur-val==o2 then cur-val=03 + cmp %o2, %o3 ! see if the CAS worked + bne,a _apr_atomic_add_sparc_loop ! if not try again + ld [%o0], %o2 ! return the previous value retl mov %o3, %o0 SET_SIZE(apr_atomic_add_sparc) ! ! +! ENTRY(apr_atomic_sub_sparc) ld [%o0], %o2 @@ -96,5 +97,27 @@ _apr_atomic_sub_sparc_loop: retl mov %o3, %o0 - SET_SIZE(apr_atomic_sub_sparc) + SET_SIZE(apr_atomic_sub_sparc) +! +! +! +! %o0 [input] - the address of the value to compare +! %o1 [input] - the new value +! %o2 [input] - value to compare against +! %o0 [output] - the return value +! + ENTRY(apr_atomic_cas_sparc) + ENTRY(apr_atomic_casptr_sparc) + + cas [%o0], %o2, %o1 + cmp %o1, %o2 ! if o1 == o2 values weren't swapped + bne,a _apr_atomic_cas_ne + mov %o2, %o0 + retl + mov %o2, %o0 +_apr_atomic_cas_ne: + retl + mov %o1, %o0 + + SET_SIZE(apr_atomic_cas_sparc) |