Merge tag 'devicetree-for-5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/robh...
[linux-2.6-block.git] / arch / c6x / lib / strasgi.S
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1a59d1b8 1;; SPDX-License-Identifier: GPL-2.0-or-later
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2;; Copyright 2010 Free Software Foundation, Inc.
3;; Contributed by Bernd Schmidt <bernds@codesourcery.com>.
4;;
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5
6#include <linux/linkage.h>
7
8 .text
9
10ENTRY(__c6xabi_strasgi)
11 ;; This is essentially memcpy, with alignment known to be at least
12 ;; 4, and the size a multiple of 4 greater than or equal to 28.
13 ldw .d2t1 *B4++, A0
14|| mvk .s2 16, B1
15 ldw .d2t1 *B4++, A1
16|| mvk .s2 20, B2
17|| sub .d1 A6, 24, A6
18 ldw .d2t1 *B4++, A5
19 ldw .d2t1 *B4++, A7
20|| mv .l2x A6, B7
21 ldw .d2t1 *B4++, A8
22 ldw .d2t1 *B4++, A9
23|| mv .s2x A0, B5
24|| cmpltu .l2 B2, B7, B0
25
26_strasgi_loop:
27 stw .d1t2 B5, *A4++
28|| [B0] ldw .d2t1 *B4++, A0
29|| mv .s2x A1, B5
30|| mv .l2 B7, B6
31
32 [B0] sub .d2 B6, 24, B7
33|| [B0] b .s2 _strasgi_loop
34|| cmpltu .l2 B1, B6, B0
35
36 [B0] ldw .d2t1 *B4++, A1
37|| stw .d1t2 B5, *A4++
38|| mv .s2x A5, B5
39|| cmpltu .l2 12, B6, B0
40
41 [B0] ldw .d2t1 *B4++, A5
42|| stw .d1t2 B5, *A4++
43|| mv .s2x A7, B5
44|| cmpltu .l2 8, B6, B0
45
46 [B0] ldw .d2t1 *B4++, A7
47|| stw .d1t2 B5, *A4++
48|| mv .s2x A8, B5
49|| cmpltu .l2 4, B6, B0
50
51 [B0] ldw .d2t1 *B4++, A8
52|| stw .d1t2 B5, *A4++
53|| mv .s2x A9, B5
54|| cmpltu .l2 0, B6, B0
55
56 [B0] ldw .d2t1 *B4++, A9
57|| stw .d1t2 B5, *A4++
58|| mv .s2x A0, B5
59|| cmpltu .l2 B2, B7, B0
60
61 ;; loop back branch happens here
62
63 cmpltu .l2 B1, B6, B0
64|| ret .s2 b3
65
66 [B0] stw .d1t1 A1, *A4++
67|| cmpltu .l2 12, B6, B0
68 [B0] stw .d1t1 A5, *A4++
69|| cmpltu .l2 8, B6, B0
70 [B0] stw .d1t1 A7, *A4++
71|| cmpltu .l2 4, B6, B0
72 [B0] stw .d1t1 A8, *A4++
73|| cmpltu .l2 0, B6, B0
74 [B0] stw .d1t1 A9, *A4++
75
76 ;; return happens here
77ENDPROC(__c6xabi_strasgi)