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09831ca7 AJ |
1 | ; Port on Texas Instruments TMS320C6x architecture |
2 | ; | |
3 | ; Copyright (C) 2006, 2009, 2010 Texas Instruments Incorporated | |
4 | ; Author: Aurelien Jacquiot (aurelien.jacquiot@jaluna.com) | |
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 | ||
11 | #include <linux/linkage.h> | |
12 | ||
13 | .text | |
14 | ||
15 | ENTRY(memcpy) | |
16 | AND .L1 0x1,A6,A0 | |
17 | || AND .S1 0x2,A6,A1 | |
18 | || AND .L2X 0x4,A6,B0 | |
19 | || MV .D1 A4,A3 | |
20 | || MVC .S2 ILC,B2 | |
21 | ||
22 | [A0] LDB .D2T1 *B4++,A5 | |
23 | [A1] LDB .D2T1 *B4++,A7 | |
24 | [A1] LDB .D2T1 *B4++,A8 | |
25 | [B0] LDNW .D2T1 *B4++,A9 | |
26 | || SHRU .S2X A6,0x3,B1 | |
27 | [!B1] BNOP .S2 B3,1 | |
28 | ||
29 | [A0] STB .D1T1 A5,*A3++ | |
30 | ||[B1] MVC .S2 B1,ILC | |
31 | [A1] STB .D1T1 A7,*A3++ | |
32 | [A1] STB .D1T1 A8,*A3++ | |
33 | [B0] STNW .D1T1 A9,*A3++ ; return when len < 8 | |
34 | ||
35 | SPLOOP 2 | |
36 | ||
37 | LDNDW .D2T1 *B4++,A9:A8 | |
38 | NOP 3 | |
39 | ||
40 | NOP | |
41 | SPKERNEL 0,0 | |
42 | || STNDW .D1T1 A9:A8,*A3++ | |
43 | ||
44 | BNOP .S2 B3,4 | |
45 | MVC .S2 B2,ILC | |
46 | ENDPROC(memcpy) |