root/include/asm-alpha/unaligned.h

/* */

INCLUDED FROM

DEFINITIONS

1. ldq_u
2. ldl_u
3. ldw_u
4. stq_u
5. stl_u
6. stw_u

   1 #ifndef __ALPHA_UNALIGNED_H
   2 #define __ALPHA_UNALIGNED_H
   3 
   4 /*
   5  * inline functions to do unaligned accesses.. See entUna in traps.c
   6  */
   7 extern inline unsigned long ldq_u(unsigned long * r11)
     /*  */
   8 {
   9         unsigned long r1,r2;
  10         __asm__("ldq_u %0,%3\n\t"
  11                 "ldq_u %1,%4\n\t"
  12                 "extql %0,%2,%0\n\t"
  13                 "extqh %1,%2,%1\n\t"
  14                 "bis %1,%0,%0"
  15                 :"=&r" (r1), "=&r" (r2)
  16                 :"r" (r11),
  17                  "m" (*r11),
  18                  "m" (*(unsigned long *)(7+(char *) r11)));
  19         return r1;
  20 }
  21 
  22 extern inline unsigned long ldl_u(unsigned int * r11)
     /*  */
  23 {
  24         unsigned long r1,r2;
  25         __asm__("ldq_u %0,%3\n\t"
  26                 "ldq_u %1,%4\n\t"
  27                 "extll %0,%2,%0\n\t"
  28                 "extlh %1,%2,%1\n\t"
  29                 "bis %1,%0,%0"
  30                 :"=&r" (r1), "=&r" (r2)
  31                 :"r" (r11),
  32                  "m" (*r11),
  33                  "m" (*(unsigned long *)(3+(char *) r11)));
  34         return r1;
  35 }
  36 
  37 extern inline unsigned long ldw_u(unsigned short * r11)
     /*  */
  38 {
  39         unsigned long r1,r2;
  40         __asm__("ldq_u %0,%3\n\t"
  41                 "ldq_u %1,%4\n\t"
  42                 "extwl %0,%2,%0\n\t"
  43                 "extwh %1,%2,%1\n\t"
  44                 "bis %1,%0,%0"
  45                 :"=&r" (r1), "=&r" (r2)
  46                 :"r" (r11),
  47                  "m" (*r11),
  48                  "m" (*(unsigned long *)(1+(char *) r11)));
  49         return r1;
  50 }
  51 
  52 extern inline void stq_u(unsigned long r5, unsigned long * r11)
     /*  */
  53 {
  54         unsigned long r1,r2,r3,r4;
  55 
  56         __asm__("ldq_u %3,%1\n\t"
  57                 "ldq_u %2,%0\n\t"
  58                 "insqh %6,%7,%5\n\t"
  59                 "insql %6,%7,%4\n\t"
  60                 "mskqh %3,%7,%3\n\t"
  61                 "mskql %2,%7,%2\n\t"
  62                 "bis %3,%5,%3\n\t"
  63                 "bis %2,%4,%2\n\t"
  64                 "stq_u %3,%1\n\t"
  65                 "stq_u %2,%0"
  66                 :"=m" (*r11),
  67                  "=m" (*(unsigned long *)(7+(char *) r11)),
  68                  "=&r" (r1), "=&r" (r2), "=&r" (r3), "=&r" (r4)
  69                 :"r" (r5), "r" (r11));
  70 }
  71 
  72 extern inline void stl_u(unsigned long r5, unsigned int * r11)
     /*  */
  73 {
  74         unsigned long r1,r2,r3,r4;
  75 
  76         __asm__("ldq_u %3,%1\n\t"
  77                 "ldq_u %2,%0\n\t"
  78                 "inslh %6,%7,%5\n\t"
  79                 "insll %6,%7,%4\n\t"
  80                 "msklh %3,%7,%3\n\t"
  81                 "mskll %2,%7,%2\n\t"
  82                 "bis %3,%5,%3\n\t"
  83                 "bis %2,%4,%2\n\t"
  84                 "stq_u %3,%1\n\t"
  85                 "stq_u %2,%0"
  86                 :"=m" (*r11),
  87                  "=m" (*(unsigned long *)(3+(char *) r11)),
  88                  "=&r" (r1), "=&r" (r2), "=&r" (r3), "=&r" (r4)
  89                 :"r" (r5), "r" (r11));
  90 }
  91 
  92 extern inline void stw_u(unsigned long r5, unsigned short * r11)
     /*  */
  93 {
  94         unsigned long r1,r2,r3,r4;
  95 
  96         __asm__("ldq_u %3,%1\n\t"
  97                 "ldq_u %2,%0\n\t"
  98                 "inswh %6,%7,%5\n\t"
  99                 "inswl %6,%7,%4\n\t"
 100                 "mskwh %3,%7,%3\n\t"
 101                 "mskwl %2,%7,%2\n\t"
 102                 "bis %3,%5,%3\n\t"
 103                 "bis %2,%4,%2\n\t"
 104                 "stq_u %3,%1\n\t"
 105                 "stq_u %2,%0"
 106                 :"=m" (*r11),
 107                  "=m" (*(unsigned long *)(1+(char *) r11)),
 108                  "=&r" (r1), "=&r" (r2), "=&r" (r3), "=&r" (r4)
 109                 :"r" (r5), "r" (r11));
 110 }
 111 
 112 #endif

/* */