4.115
Line | |
---|
1 | /* |
---|
2 | * Copyright (c) 2013 embedded brains GmbH. All rights reserved. |
---|
3 | * |
---|
4 | * embedded brains GmbH |
---|
5 | * Dornierstr. 4 |
---|
6 | * 82178 Puchheim |
---|
7 | * Germany |
---|
8 | * <rtems@embedded-brains.de> |
---|
9 | * |
---|
10 | * The license and distribution terms for this file may be |
---|
11 | * found in the file LICENSE in this distribution or at |
---|
12 | * http://www.rtems.com/license/LICENSE. |
---|
13 | */ |
---|
14 | |
---|
15 | #ifdef HAVE_CONFIG_H |
---|
16 | #include "config.h" |
---|
17 | #endif |
---|
18 | |
---|
19 | #include <rtems/asm.h> |
---|
20 | |
---|
21 | .section .text |
---|
22 | |
---|
23 | FUNCTION_THUMB_ENTRY(_CPU_Context_volatile_clobber) |
---|
24 | |
---|
25 | .macro clobber_register reg |
---|
26 | sub r0, r0, #1 |
---|
27 | mov \reg, r0 |
---|
28 | .endm |
---|
29 | |
---|
30 | #ifdef ARM_MULTILIB_VFP_D32 |
---|
31 | vmrs r1, FPSCR |
---|
32 | movs r2, #0x001f |
---|
33 | movt r2, #0xf800 |
---|
34 | bic r1, r1, r2 |
---|
35 | and r2, r2, r0 |
---|
36 | orr r1, r1, r2 |
---|
37 | vmsr FPSCR, r1 |
---|
38 | |
---|
39 | .macro clobber_vfp_register reg |
---|
40 | sub r0, r0, #1 |
---|
41 | vmov \reg, r0, r0 |
---|
42 | .endm |
---|
43 | |
---|
44 | clobber_vfp_register d0 |
---|
45 | clobber_vfp_register d1 |
---|
46 | clobber_vfp_register d2 |
---|
47 | clobber_vfp_register d3 |
---|
48 | clobber_vfp_register d4 |
---|
49 | clobber_vfp_register d5 |
---|
50 | clobber_vfp_register d6 |
---|
51 | clobber_vfp_register d7 |
---|
52 | clobber_vfp_register d16 |
---|
53 | clobber_vfp_register d17 |
---|
54 | clobber_vfp_register d18 |
---|
55 | clobber_vfp_register d19 |
---|
56 | clobber_vfp_register d20 |
---|
57 | clobber_vfp_register d21 |
---|
58 | clobber_vfp_register d22 |
---|
59 | clobber_vfp_register d23 |
---|
60 | clobber_vfp_register d24 |
---|
61 | clobber_vfp_register d25 |
---|
62 | clobber_vfp_register d26 |
---|
63 | clobber_vfp_register d27 |
---|
64 | clobber_vfp_register d28 |
---|
65 | clobber_vfp_register d29 |
---|
66 | clobber_vfp_register d30 |
---|
67 | clobber_vfp_register d31 |
---|
68 | #endif |
---|
69 | |
---|
70 | clobber_register r1 |
---|
71 | clobber_register r2 |
---|
72 | clobber_register r3 |
---|
73 | clobber_register r12 |
---|
74 | |
---|
75 | bx lr |
---|
76 | |
---|
77 | FUNCTION_END(_CPU_Context_volatile_clobber) |
---|
Note: See
TracBrowser
for help on using the repository browser.