Linux Kernel  3.7.1
 All Data Structures Namespaces Files Functions Variables Typedefs Enumerations Enumerator Macros Groups Pages
movs.h
Go to the documentation of this file.
1 #ifndef __MOVS_H__
2 #define __MOVS_H__
3 
4 /*
5 ** movs.h
6 **
7 ** Inline assembly macros to generate movs & related instructions
8 */
9 
10 /* Set DFC register value */
11 
12 #define SET_DFC(x) \
13  __asm__ __volatile__ (" movec %0,%/dfc" : : "d" (x));
14 
15 /* Get DFC register value */
16 
17 #define GET_DFC(x) \
18  __asm__ __volatile__ (" movec %/dfc, %0" : "=d" (x) : );
19 
20 /* Set SFC register value */
21 
22 #define SET_SFC(x) \
23  __asm__ __volatile__ (" movec %0,%/sfc" : : "d" (x));
24 
25 /* Get SFC register value */
26 
27 #define GET_SFC(x) \
28  __asm__ __volatile__ (" movec %/sfc, %0" : "=d" (x) : );
29 
30 #define SET_VBR(x) \
31  __asm__ __volatile__ (" movec %0,%/vbr" : : "r" (x));
32 
33 #define GET_VBR(x) \
34  __asm__ __volatile__ (" movec %/vbr, %0" : "=g" (x) : );
35 
36 /* Set a byte using the "movs" instruction */
37 
38 #define SET_CONTROL_BYTE(addr,value) \
39  __asm__ __volatile__ (" movsb %0, %1@" : : "d" (value), "a" (addr));
40 
41 /* Get a byte using the "movs" instruction */
42 
43 #define GET_CONTROL_BYTE(addr,value) \
44  __asm__ __volatile__ (" movsb %1@, %0" : "=d" (value) : "a" (addr));
45 
46 /* Set a (long)word using the "movs" instruction */
47 
48 #define SET_CONTROL_WORD(addr,value) \
49  __asm__ __volatile__ (" movsl %0, %1@" : : "d" (value), "a" (addr));
50 
51 /* Get a (long)word using the "movs" instruction */
52 
53 #define GET_CONTROL_WORD(addr,value) \
54  __asm__ __volatile__ (" movsl %1@, %0" : "=d" (value) : "a" (addr));
55 #endif