1 	.section	".text", #alloc, #execinstr
2 	.align		8
3 	.skip		16
4 	.global _tas
5 !	.type	_tas,2
6 _tas:
7 	or	%g0,1,%o1
8 	swap	[%o0],%o1	! o0 points to lock; key is first word
9 	retl
10 	mov	%o1, %o0
11 
12    	.size	_tas,(.-_tas)
13