vistr.c (1224B)
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 }