URL https://opencores.org/ocsvn/or1k/or1k/trunk

Subversion Repositories or1k

[/] [or1k/] [trunk/] [linux/] [linux-2.4/] [arch/] [arm/] [lib/] [io-readsb.S] - Blame information for rev 1275

Go to most recent revision | Details | Compare with Previous | View Log

Line No.	Rev	Author	Line
1	1275	phoenix	`/*`
2			`* linux/arch/arm/lib/io-readsb.S`
3			`*`
4			`* Copyright (C) 1995-2000 Russell King`
5			`*`
6			`* This program is free software; you can redistribute it and/or modify`
7			`* it under the terms of the GNU General Public License version 2 as`
8			`* published by the Free Software Foundation.`
9			`*/`
10			`#include`
11			`#include`
12			`#include`
13
14			`.insb_align: rsb ip, ip, #4`
15			`cmp ip, r2`
16			`movgt ip, r2`
17			`cmp ip, #2`
18			`ldrb r3, [r0]`
19			`strb r3, [r1], #1`
20			`ldrgeb r3, [r0]`
21			`strgeb r3, [r1], #1`
22			`ldrgtb r3, [r0]`
23			`strgtb r3, [r1], #1`
24			`subs r2, r2, ip`
25			`bne .insb_aligned`
26
27			`ENTRY(__raw_readsb)`
28			`teq r2, #0 @ do we have to check for the zero len?`
29			`moveq pc, lr`
30			`ands ip, r1, #3`
31			`bne .insb_align`
32
33			`.insb_aligned: stmfd sp!, {r4 - r6, lr}`
34
35			`subs r2, r2, #16`
36			`bmi .insb_no_16`
37
38			`.insb_16_lp: ldrb r3, [r0]`
39			`ldrb r4, [r0]`
40			`orr r3, r3, r4, lsl #8`
41			`ldrb r4, [r0]`
42			`orr r3, r3, r4, lsl #16`
43			`ldrb r4, [r0]`
44			`orr r3, r3, r4, lsl #24`
45			`ldrb r4, [r0]`
46			`ldrb r5, [r0]`
47			`orr r4, r4, r5, lsl #8`
48			`ldrb r5, [r0]`
49			`orr r4, r4, r5, lsl #16`
50			`ldrb r5, [r0]`
51			`orr r4, r4, r5, lsl #24`
52			`ldrb r5, [r0]`
53			`ldrb r6, [r0]`
54			`orr r5, r5, r6, lsl #8`
55			`ldrb r6, [r0]`
56			`orr r5, r5, r6, lsl #16`
57			`ldrb r6, [r0]`
58			`orr r5, r5, r6, lsl #24`
59			`ldrb r6, [r0]`
60			`ldrb ip, [r0]`
61			`orr r6, r6, ip, lsl #8`
62			`ldrb ip, [r0]`
63			`orr r6, r6, ip, lsl #16`
64			`ldrb ip, [r0]`
65			`orr r6, r6, ip, lsl #24`
66			`stmia r1!, {r3 - r6}`
67
68			`subs r2, r2, #16`
69			`bpl .insb_16_lp`
70
71			`tst r2, #15`
72			`LOADREGS(eqfd, sp!, {r4 - r6, pc})`
73
74			`.insb_no_16: tst r2, #8`
75			`beq .insb_no_8`
76
77			`ldrb r3, [r0]`
78			`ldrb r4, [r0]`
79			`orr r3, r3, r4, lsl #8`
80			`ldrb r4, [r0]`
81			`orr r3, r3, r4, lsl #16`
82			`ldrb r4, [r0]`
83			`orr r3, r3, r4, lsl #24`
84			`ldrb r4, [r0]`
85			`ldrb r5, [r0]`
86			`orr r4, r4, r5, lsl #8`
87			`ldrb r5, [r0]`
88			`orr r4, r4, r5, lsl #16`
89			`ldrb r5, [r0]`
90			`orr r4, r4, r5, lsl #24`
91			`stmia r1!, {r3, r4}`
92
93			`.insb_no_8: tst r2, #4`
94			`beq .insb_no_4`
95
96			`ldrb r3, [r0]`
97			`ldrb r4, [r0]`
98			`orr r3, r3, r4, lsl #8`
99			`ldrb r4, [r0]`
100			`orr r3, r3, r4, lsl #16`
101			`ldrb r4, [r0]`
102			`orr r3, r3, r4, lsl #24`
103			`str r3, [r1], #4`
104
105			`.insb_no_4: ands r2, r2, #3`
106			`LOADREGS(eqfd, sp!, {r4 - r6, pc})`
107
108			`cmp r2, #2`
109			`ldrb r3, [r0]`
110			`strb r3, [r1], #1`
111			`ldrgeb r3, [r0]`
112			`strgeb r3, [r1], #1`
113			`ldrgtb r3, [r0]`
114			`strgtb r3, [r1]`
115
116			`LOADREGS(fd, sp!, {r4 - r6, pc})`

Browse

Tools

Subversion Repositories or1k

[/] [or1k/] [trunk/] [linux/] [linux-2.4/] [arch/] [arm/] [lib/] [io-readsb.S] - Blame information for rev 1275