kernel-ark/include/asm-m68k/movs.h
Linus Torvalds 1da177e4c3 Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!
2005-04-16 15:20:36 -07:00

56 lines
1.4 KiB
C

#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