diff options
| author | Jeff Roberson <jeff@FreeBSD.org> | 2002-05-08 05:19:56 +0000 |
|---|---|---|
| committer | Jeff Roberson <jeff@FreeBSD.org> | 2002-05-08 05:19:56 +0000 |
| commit | c4b689f10af0284bf66260bcbee105712438abc0 (patch) | |
| tree | 360977ebdec5a6e0294170f2e0d3332ba994402f /sys/alpha/include | |
| parent | 8b637659da92b793e2a0cebc5cabbb8d10ac9ef8 (diff) | |
Notes
Diffstat (limited to 'sys/alpha/include')
| -rw-r--r-- | sys/alpha/include/atomic.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/sys/alpha/include/atomic.h b/sys/alpha/include/atomic.h index 889b7e248626..93cdbf6b16a3 100644 --- a/sys/alpha/include/atomic.h +++ b/sys/alpha/include/atomic.h @@ -356,6 +356,7 @@ atomic_cmpset_32(volatile u_int32_t* p, u_int32_t cmpval, u_int32_t newval) __asm __volatile ( "1:\tldl_l %0, %4\n\t" /* load old value */ + "zapnot %0,0xf,%0\n\t" /* Chop of signed bits */ "cmpeq %0, %2, %0\n\t" /* compare */ "beq %0, 2f\n\t" /* exit if not equal */ "mov %3, %0\n\t" /* value to store */ |