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| author | rsc <devnull@localhost> | 2003-09-30 17:47:42 +0000 |
|---|---|---|
| committer | rsc <devnull@localhost> | 2003-09-30 17:47:42 +0000 |
| commit | 76193d7cb0457807b2f0b95f909ab5de19480cd7 (patch) | |
| tree | 97e538c7e38181431e90289a0fe8b6b7ce1f8f3c /src/libthread/FreeBSD-386.s | |
| parent | ed7c8e8d02c02bdbff1e88a6d8d1419f39af48ad (diff) | |
| download | plan9port-76193d7cb0457807b2f0b95f909ab5de19480cd7.tar.gz plan9port-76193d7cb0457807b2f0b95f909ab5de19480cd7.tar.bz2 plan9port-76193d7cb0457807b2f0b95f909ab5de19480cd7.zip | |
Initial revision
Diffstat (limited to 'src/libthread/FreeBSD-386.s')
| -rw-r--r-- | src/libthread/FreeBSD-386.s | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/src/libthread/FreeBSD-386.s b/src/libthread/FreeBSD-386.s new file mode 100644 index 00000000..624518e0 --- /dev/null +++ b/src/libthread/FreeBSD-386.s @@ -0,0 +1,18 @@ + +.globl _xinc +_xinc: + movl 4(%esp), %eax + lock incl 0(%eax) + ret + +.globl _xdec +_xdec: + movl 4(%esp), %eax + lock decl 0(%eax) + jz iszero + movl %eax, 1 + ret +iszero: + movl %eax, 0 + ret + |