tests/tcg/s390x/vistr.c

   1 /*
   2  * Test the VECTOR ISOLATE STRING (vistr) instruction
   3  */
   4 #include <stdint.h>
   5 #include <stdio.h>
   6 #include "vx.h"
   7
   8 static inline void vistr(S390Vector *v1, S390Vector *v2,
   9                          const uint8_t m3, const uint8_t m5)
  10 {
  11     asm volatile("vistr %[v1], %[v2], %[m3], %[m5]\n"
  12                  : [v1] "=v" (v1->v)
  13                  : [v2]  "v" (v2->v)
  14                  , [m3]  "i" (m3)
  15                  , [m5]  "i" (m5)
  16                  : "cc");
  17 }
  18
  19 int main(int argc, char *argv[])
  20 {
  21     S390Vector vd = {};
  22     S390Vector vs16 = {
  23         .h[0] = 0x1234, .h[1] = 0x0056, .h[2] = 0x7800, .h[3] = 0x0000,
  24         .h[4] = 0x0078, .h[5] = 0x0000, .h[6] = 0x6543, .h[7] = 0x2100
  25     };
  26     S390Vector vs32 = {
  27         .w[0] = 0x12340000, .w[1] = 0x78654300,
  28         .w[2] = 0x0, .w[3] = 0x12,
  29     };
  30
  31     vistr(&vd, &vs16, 1, 0);
  32     if (vd.h[0] != 0x1234 || vd.h[1] != 0x0056 || vd.h[2] != 0x7800 ||
  33         vd.h[3] || vd.h[4] || vd.h[5] || vd.h[6] || vd.h[7]) {
  34         puts("ERROR: vitrh failed!");
  35         return 1;
  36     }
  37
  38     vistr(&vd, &vs32, 2, 0);
  39     if (vd.w[0] != 0x12340000 || vd.w[1] != 0x78654300 || vd.w[2] || vd.w[3]) {
  40         puts("ERROR: vitrf failed!");
  41         return 1;
  42     }
  43
  44     return 0;
  45 }