arch/m68k/include/asm/movs.h

   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