projects
/
sbcl.git
/ blobdiff
commit
grep
author
committer
pickaxe
?
search:
re
summary
|
shortlog
|
log
|
commit
|
commitdiff
|
tree
raw
|
inline
| side by side
1.0.4.17: interrupt handler spring cleaning
[sbcl.git]
/
src
/
runtime
/
x86-64-arch.h
diff --git
a/src/runtime/x86-64-arch.h
b/src/runtime/x86-64-arch.h
index
90b5150
..
2085503
100644
(file)
--- a/
src/runtime/x86-64-arch.h
+++ b/
src/runtime/x86-64-arch.h
@@
-43,4
+43,15
@@
release_spinlock(volatile lispobj *word)
*word=0;
}
*word=0;
}
+static inline lispobj
+swap_lispobjs(volatile lispobj *dest, lispobj value)
+{
+ lispobj old_value;
+ asm ("lock xchg %0,(%1)"
+ : "=r" (old_value)
+ : "r" (dest), "0" (value)
+ : "memory");
+ return old_value;
+}
+
#endif /* _X86_64_ARCH_H */
#endif /* _X86_64_ARCH_H */