aboutsummaryrefslogtreecommitdiffstats
path: root/include/asm-m68k/movs.h
blob: 67dbea36960fb3a7e2ba369312248285a7267143 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
#ifndef  __MOVS_H__
#define __MOVS_H__

/*
** movs.h
**
** Inline assembly macros to generate movs & related instructions
*/

/* Set DFC register value */

#define SET_DFC(x) \
        __asm__ __volatile__ (" movec %0,%/dfc" : : "d" (x));

/* Get DFC register value */

#define GET_DFC(x) \
        __asm__ __volatile__ (" movec %/dfc, %0" : "=d" (x) : );

/* Set SFC register value */

#define SET_SFC(x) \
        __asm__ __volatile__ (" movec %0,%/sfc" : : "d" (x));

/* Get SFC register value */

#define GET_SFC(x) \
        __asm__ __volatile__ (" movec %/sfc, %0" : "=d" (x) : );

#define SET_VBR(x) \
        __asm__ __volatile__ (" movec %0,%/vbr" : : "r" (x));

#define GET_VBR(x) \
        __asm__ __volatile__ (" movec %/vbr, %0" : "=g" (x) : );

/* Set a byte using the "movs" instruction */

#define SET_CONTROL_BYTE(addr,value) \
        __asm__ __volatile__ (" movsb %0, %1@" : : "d" (value), "a" (addr));

/* Get a byte using the "movs" instruction */

#define GET_CONTROL_BYTE(addr,value) \
        __asm__ __volatile__ (" movsb %1@, %0" : "=d" (value) : "a" (addr));

/* Set a (long)word using the "movs" instruction */

#define SET_CONTROL_WORD(addr,value) \
        __asm__ __volatile__ (" movsl %0, %1@" : : "d" (value), "a" (addr));

/* Get a (long)word using the "movs" instruction */

#define GET_CONTROL_WORD(addr,value) \
        __asm__ __volatile__ (" movsl %1@, %0" : "=d" (value) : "a" (addr));
#endif