Changeset 7638 in vbox

Timestamp:

Mar 28, 2008 6:52:25 PM (17 years ago)

Author:

vboxsync

svn:sync-xref-src-repo-rev:

29144

Message:

Another one.

File:

• trunk/include/iprt/asm.h (modified) (2 diffs)

trunk/include/iprt/asm.h

@@ -2268 +2268 @@
 DECLASM(bool) ASMAtomicCmpXchgU64(volatile uint64_t *pu64, const uint64_t u64New, const uint64_t u64Old);
 #else
-DECLINLINE(bool) ASMAtomicCmpXchgU64(volatile uint64_t *pu64, const uint64_t u64New, const uint64_t u64Old)
+DECLINLINE(bool) ASMAtomicCmpXchgU64(volatile uint64_t *pu64, const uint64_t u64New, uint64_t u64Old)
 {
 # if RT_INLINE_ASM_USES_INTRIN
@@ -2276 +2276 @@
 #  if RT_INLINE_ASM_GNU_STYLE
     uint8_t u8Ret;
-    __asm__ __volatile__("lock; cmpxchgq %2, %0\n\t"
+    __asm__ __volatile__("lock; cmpxchgq %3, %0\n\t"
                          "setz  %1\n\t"
                          : "=m" (*pu64),
-                           "=qm" (u8Ret)
+                           "=qm" (u8Ret),
+                           "=a" (u64Old)
                          : "r" (u64New),
-                           "a" (u64Old));
+                           "2" (u64Old));
     return (bool)u8Ret;
 #  else