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-rw-r--r--arch/sparc/lib/strncmp.S118
1 files changed, 118 insertions, 0 deletions
diff --git a/arch/sparc/lib/strncmp.S b/arch/sparc/lib/strncmp.S
new file mode 100644
index 000000000000..615626805d4b
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+++ b/arch/sparc/lib/strncmp.S
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1/* $Id: strncmp.S,v 1.2 1996/09/09 02:47:20 davem Exp $
2 * strncmp.S: Hand optimized Sparc assembly of GCC output from GNU libc
3 * generic strncmp routine.
4 */
5
6 .text
7 .align 4
8 .global __strncmp, strncmp
9__strncmp:
10strncmp:
11 mov %o0, %g3
12 mov 0, %o3
13
14 cmp %o2, 3
15 ble 7f
16 mov 0, %g2
17
18 sra %o2, 2, %o4
19 ldub [%g3], %o3
20
210:
22 ldub [%o1], %g2
23 add %g3, 1, %g3
24 and %o3, 0xff, %o0
25
26 cmp %o0, 0
27 be 8f
28 add %o1, 1, %o1
29
30 cmp %o0, %g2
31 be,a 1f
32 ldub [%g3], %o3
33
34 retl
35 sub %o0, %g2, %o0
36
371:
38 ldub [%o1], %g2
39 add %g3,1, %g3
40 and %o3, 0xff, %o0
41
42 cmp %o0, 0
43 be 8f
44 add %o1, 1, %o1
45
46 cmp %o0, %g2
47 be,a 1f
48 ldub [%g3], %o3
49
50 retl
51 sub %o0, %g2, %o0
52
531:
54 ldub [%o1], %g2
55 add %g3, 1, %g3
56 and %o3, 0xff, %o0
57
58 cmp %o0, 0
59 be 8f
60 add %o1, 1, %o1
61
62 cmp %o0, %g2
63 be,a 1f
64 ldub [%g3], %o3
65
66 retl
67 sub %o0, %g2, %o0
68
691:
70 ldub [%o1], %g2
71 add %g3, 1, %g3
72 and %o3, 0xff, %o0
73
74 cmp %o0, 0
75 be 8f
76 add %o1, 1, %o1
77
78 cmp %o0, %g2
79 be 1f
80 add %o4, -1, %o4
81
82 retl
83 sub %o0, %g2, %o0
84
851:
86
87 cmp %o4, 0
88 bg,a 0b
89 ldub [%g3], %o3
90
91 b 7f
92 and %o2, 3, %o2
93
949:
95 ldub [%o1], %g2
96 add %g3, 1, %g3
97 and %o3, 0xff, %o0
98
99 cmp %o0, 0
100 be 8f
101 add %o1, 1, %o1
102
103 cmp %o0, %g2
104 be 7f
105 add %o2, -1, %o2
106
1078:
108 retl
109 sub %o0, %g2, %o0
110
1117:
112 cmp %o2, 0
113 bg,a 9b
114 ldub [%g3], %o3
115
116 and %g2, 0xff, %o0
117 retl
118 sub %o3, %o0, %o0