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[/] [or1k/] [trunk/] [linux/] [linux-2.4/] [arch/] [arm/] [lib/] [io-writesw-armv4.S] - Blame information for rev 1765

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/*
 *  linux/arch/arm/lib/io-writesw-armv4.S
 *
 *  Copyright (C) 1995-2000 Russell King
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 */
#include 
#include 
#include 
 
.outsw_bad_alignment:
                adr     r0, .outsw_bad_align_msg
                mov     r2, lr
                b       SYMBOL_NAME(panic)
.outsw_bad_align_msg:
                .asciz  "outsw: bad buffer alignment (0x%p, lr=0x%08lX)\n"
                .align
 
.outsw_align:   tst     r1, #1
                bne     .outsw_bad_alignment
 
                ldrh    r3, [r1], #2
                strh    r3, [r0]
 
                subs    r2, r2, #1
                RETINSTR(moveq, pc, lr)
 
ENTRY(__raw_writesw)
                teq     r2, #0          @ do we have to check for the zero len?
                moveq   pc, lr
                tst     r1, #3
                bne     .outsw_align
 
                stmfd   sp!, {r4, r5, lr}
 
                subs    r2, r2, #8
                bmi     .no_outsw_8
 
.outsw_8_lp:    ldmia   r1!, {r3, r4, r5, ip}
 
                strh    r3, [r0]
                mov     r3, r3, lsr #16
                strh    r3, [r0]
                strh    r4, [r0]
                mov     r4, r4, lsr #16
                strh    r4, [r0]
                strh    r5, [r0]
                mov     r5, r5, lsr #16
                strh    r5, [r0]
                strh    ip, [r0]
                mov     ip, ip, lsr #16
                strh    ip, [r0]
 
                subs    r2, r2, #8
                bpl     .outsw_8_lp
 
                tst     r2, #7
                LOADREGS(eqfd, sp!, {r4, r5, pc})
 
.no_outsw_8:    tst     r2, #4
                beq     .no_outsw_4
 
                ldmia   r1!, {r3, ip}
                strh    r3, [r0]
                mov     r3, r3, lsr #16
                strh    r3, [r0]
                strh    ip, [r0]
                mov     ip, ip, lsr #16
                strh    ip, [r0]
 
.no_outsw_4:    tst     r2, #2
                beq     .no_outsw_2
 
                ldr     r3, [r1], #4
                strh    r3, [r0]
                mov     r3, r3, lsr #16
                strh    r3, [r0]
 
.no_outsw_2:    tst     r2, #1
                ldrneh  r3, [r1]
                strneh  r3, [r0]
 
                LOADREGS(fd, sp!, {r4, r5, pc})

Line No.	Rev	Author	Line
1	1275	phoenix	`/*`
2			`* linux/arch/arm/lib/io-writesw-armv4.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			`.outsw_bad_alignment:`
15			`adr r0, .outsw_bad_align_msg`
16			`mov r2, lr`
17			`b SYMBOL_NAME(panic)`
18			`.outsw_bad_align_msg:`
19			`.asciz "outsw: bad buffer alignment (0x%p, lr=0x%08lX)\n"`
20			`.align`
21
22			`.outsw_align: tst r1, #1`
23			`bne .outsw_bad_alignment`
24
25			`ldrh r3, [r1], #2`
26			`strh r3, [r0]`
27
28			`subs r2, r2, #1`
29			`RETINSTR(moveq, pc, lr)`
30
31			`ENTRY(__raw_writesw)`
32			`teq r2, #0 @ do we have to check for the zero len?`
33			`moveq pc, lr`
34			`tst r1, #3`
35			`bne .outsw_align`
36
37			`stmfd sp!, {r4, r5, lr}`
38
39			`subs r2, r2, #8`
40			`bmi .no_outsw_8`
41
42			`.outsw_8_lp: ldmia r1!, {r3, r4, r5, ip}`
43
44			`strh r3, [r0]`
45			`mov r3, r3, lsr #16`
46			`strh r3, [r0]`
47			`strh r4, [r0]`
48			`mov r4, r4, lsr #16`
49			`strh r4, [r0]`
50			`strh r5, [r0]`
51			`mov r5, r5, lsr #16`
52			`strh r5, [r0]`
53			`strh ip, [r0]`
54			`mov ip, ip, lsr #16`
55			`strh ip, [r0]`
56
57			`subs r2, r2, #8`
58			`bpl .outsw_8_lp`
59
60			`tst r2, #7`
61			`LOADREGS(eqfd, sp!, {r4, r5, pc})`
62
63			`.no_outsw_8: tst r2, #4`
64			`beq .no_outsw_4`
65
66			`ldmia r1!, {r3, ip}`
67			`strh r3, [r0]`
68			`mov r3, r3, lsr #16`
69			`strh r3, [r0]`
70			`strh ip, [r0]`
71			`mov ip, ip, lsr #16`
72			`strh ip, [r0]`
73
74			`.no_outsw_4: tst r2, #2`
75			`beq .no_outsw_2`
76
77			`ldr r3, [r1], #4`
78			`strh r3, [r0]`
79			`mov r3, r3, lsr #16`
80			`strh r3, [r0]`
81
82			`.no_outsw_2: tst r2, #1`
83			`ldrneh r3, [r1]`
84			`strneh r3, [r0]`
85
86			`LOADREGS(fd, sp!, {r4, r5, pc})`

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[/] [or1k/] [trunk/] [linux/] [linux-2.4/] [arch/] [arm/] [lib/] [io-writesw-armv4.S] - Blame information for rev 1765