| 1 | /* |
| 2 | * Test the MXDB and MXDBR instructions. |
| 3 | * |
| 4 | * SPDX-License-Identifier: GPL-2.0-or-later |
| 5 | */ |
| 6 | #include <assert.h> |
| 7 | #include <stdlib.h> |
| 8 | |
| 9 | int main(void) |
| 10 | { |
| 11 | union { |
| 12 | double d[2]; |
| 13 | long double ld; |
| 14 | } a; |
| 15 | double b; |
| 16 | |
| 17 | a.d[0] = 1.2345; |
| 18 | a.d[1] = 999; |
| 19 | b = 6.789; |
| 20 | asm("mxdb %[a],%[b]" : [a] "+f" (a.ld) : [b] "R" (b)); |
| 21 | assert(a.ld > 8.38 && a.ld < 8.39); |
| 22 | |
| 23 | a.d[0] = 1.2345; |
| 24 | a.d[1] = 999; |
| 25 | b = 6.789; |
| 26 | asm("mxdbr %[a],%[b]" : [a] "+f" (a.ld) : [b] "f" (b)); |
| 27 | assert(a.ld > 8.38 && a.ld < 8.39); |
| 28 | |
| 29 | return EXIT_SUCCESS; |
| 30 | } |