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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /arch/frv/lib/insl_ns.S
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'arch/frv/lib/insl_ns.S')
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1 files changed, 52 insertions, 0 deletions
diff --git a/arch/frv/lib/insl_ns.S b/arch/frv/lib/insl_ns.S
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+++ b/arch/frv/lib/insl_ns.S
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1/* insl_ns.S: input array of 4b words from device port without byte swapping
2 *
3 * Copyright (C) 2003 Red Hat, Inc. All Rights Reserved.
4 * Written by David Howells (dhowells@redhat.com)
5 *
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License
8 * as published by the Free Software Foundation; either version
9 * 2 of the License, or (at your option) any later version.
10 */
11
12
13 .text
14 .p2align 4
15
16###############################################################################
17#
18# void __insl_ns(unsigned int port, void *buf, int n)
19#
20###############################################################################
21 .globl __insl_ns
22 .type __insl_ns,@function
23__insl_ns:
24 andicc.p gr9,#3,gr0,icc0
25 setlos #4,gr4
26 bne icc0,#0,__insl_ns_misaligned
27 subi gr9,#4,gr9
280:
29 ldi.p @(gr8,#0),gr5
30 subicc gr10,#1,gr10,icc0
31 stu.p gr5,@(gr9,gr4)
32 bhi icc0,#2,0b
33 bralr
34
35__insl_ns_misaligned:
36 subi.p gr9,#1,gr9
37 setlos #1,gr4
380:
39 ldi @(gr8,#0),gr5
40
41 srli gr5,#24,gr6
42 stbu.p gr6,@(gr9,gr4)
43 srli gr5,#16,gr6
44 stbu.p gr6,@(gr9,gr4)
45 srli gr5,#8,gr6
46 stbu.p gr6,@(gr9,gr4)
47 subicc gr10,#1,gr10,icc0
48 stbu.p gr5,@(gr9,gr4)
49 bhi icc0,#2,0b
50 bralr
51
52 .size __insl_ns, .-__insl_ns