o5r/plan9port
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doubtful this will work

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rsc 2006-02-09 08:20:11 +00:00
parent c0811e687d
commit bafbb3918a
1 changed files with 13 additions and 0 deletions
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src/libthread/Linux-sparc64-asm.s Normal file
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.section ".text", #alloc, #execinstr
.align 8
.skip 16
.global _tas
! .type _tas,2
_tas:
or %g0,1,%o1
swap [%o0],%o1 ! o0 points to lock; key is first word
retl
mov %o1, %o0
.size _tas,(.-_tas)