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HEAD
ipfw3: remove legacy macros
[dragonfly.git]
/
test
/
sysperf
/
mtx.s
blob
2ac10b6445869bf049a216c6d0c080d43091ceb3
1
/*
2
* $DragonFly: src/test/sysperf/mtx.s,v 1.2 2006/04/22 22:32:52 dillon Exp $
3
*/
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.text
5
.globl get_mtx
6
.globl rel_mtx
7
.globl try_spin_mtx
8
.globl rel_spin_mtx
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10
get_mtx
:
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movl mtx
,%
edx
12
movl
4
(%
esp
),%
ecx
13
1
:
subl
%
eax
,%
eax
14
lock cmpxchgl
%
ecx
,(%
edx
)
15
jnz
1
b
16
ret
17
18
rel_mtx
:
19
movl mtx
,%
edx
20
movl $
0
,(%
edx
)
21
ret
22
23
try_spin_mtx
:
24
movl mtx
,%
edx
25
movl $
1
,%
eax
26
xchgl
%
eax
,(%
edx
)
27
ret
28
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rel_spin_mtx
:
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movl mtx
,%
edx
31
movl $
0
,(%
edx
)
32
ret