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1 | ;; Copyright 2010 Free Software Foundation, Inc. |
2 | ;; Contributed by Bernd Schmidt <bernds@codesourcery.com>. | |
3 | ;; | |
4 | ;; This program is free software; you can redistribute it and/or modify | |
5 | ;; it under the terms of the GNU General Public License as published by | |
6 | ;; the Free Software Foundation; either version 2 of the License, or | |
7 | ;; (at your option) any later version. | |
8 | ;; | |
9 | ;; This program is distributed in the hope that it will be useful, | |
10 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
12 | ;; GNU General Public License for more details. | |
13 | ;; | |
14 | ;; You should have received a copy of the GNU General Public License | |
15 | ;; along with this program; if not, write to the Free Software | |
16 | ;; Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. | |
17 | ||
18 | #include <linux/linkage.h> | |
19 | ||
20 | .text | |
21 | ||
22 | ENTRY(__c6xabi_strasgi) | |
23 | ;; This is essentially memcpy, with alignment known to be at least | |
24 | ;; 4, and the size a multiple of 4 greater than or equal to 28. | |
25 | ldw .d2t1 *B4++, A0 | |
26 | || mvk .s2 16, B1 | |
27 | ldw .d2t1 *B4++, A1 | |
28 | || mvk .s2 20, B2 | |
29 | || sub .d1 A6, 24, A6 | |
30 | ldw .d2t1 *B4++, A5 | |
31 | ldw .d2t1 *B4++, A7 | |
32 | || mv .l2x A6, B7 | |
33 | ldw .d2t1 *B4++, A8 | |
34 | ldw .d2t1 *B4++, A9 | |
35 | || mv .s2x A0, B5 | |
36 | || cmpltu .l2 B2, B7, B0 | |
37 | ||
38 | _strasgi_loop: | |
39 | stw .d1t2 B5, *A4++ | |
40 | || [B0] ldw .d2t1 *B4++, A0 | |
41 | || mv .s2x A1, B5 | |
42 | || mv .l2 B7, B6 | |
43 | ||
44 | [B0] sub .d2 B6, 24, B7 | |
45 | || [B0] b .s2 _strasgi_loop | |
46 | || cmpltu .l2 B1, B6, B0 | |
47 | ||
48 | [B0] ldw .d2t1 *B4++, A1 | |
49 | || stw .d1t2 B5, *A4++ | |
50 | || mv .s2x A5, B5 | |
51 | || cmpltu .l2 12, B6, B0 | |
52 | ||
53 | [B0] ldw .d2t1 *B4++, A5 | |
54 | || stw .d1t2 B5, *A4++ | |
55 | || mv .s2x A7, B5 | |
56 | || cmpltu .l2 8, B6, B0 | |
57 | ||
58 | [B0] ldw .d2t1 *B4++, A7 | |
59 | || stw .d1t2 B5, *A4++ | |
60 | || mv .s2x A8, B5 | |
61 | || cmpltu .l2 4, B6, B0 | |
62 | ||
63 | [B0] ldw .d2t1 *B4++, A8 | |
64 | || stw .d1t2 B5, *A4++ | |
65 | || mv .s2x A9, B5 | |
66 | || cmpltu .l2 0, B6, B0 | |
67 | ||
68 | [B0] ldw .d2t1 *B4++, A9 | |
69 | || stw .d1t2 B5, *A4++ | |
70 | || mv .s2x A0, B5 | |
71 | || cmpltu .l2 B2, B7, B0 | |
72 | ||
73 | ;; loop back branch happens here | |
74 | ||
75 | cmpltu .l2 B1, B6, B0 | |
76 | || ret .s2 b3 | |
77 | ||
78 | [B0] stw .d1t1 A1, *A4++ | |
79 | || cmpltu .l2 12, B6, B0 | |
80 | [B0] stw .d1t1 A5, *A4++ | |
81 | || cmpltu .l2 8, B6, B0 | |
82 | [B0] stw .d1t1 A7, *A4++ | |
83 | || cmpltu .l2 4, B6, B0 | |
84 | [B0] stw .d1t1 A8, *A4++ | |
85 | || cmpltu .l2 0, B6, B0 | |
86 | [B0] stw .d1t1 A9, *A4++ | |
87 | ||
88 | ;; return happens here | |
89 | ENDPROC(__c6xabi_strasgi) |