| 1 | #include <stdio.h> |
| 2 | |
| 3 | int main(void) |
| 4 | { |
| 5 | int a, b, c; |
| 6 | int result; |
| 7 | |
| 8 | b = 0x01; |
| 9 | c = 0xffffffff; |
| 10 | result = 0; |
| 11 | __asm |
| 12 | ("l.add r1, r1, r0\n\t" /* clear carry */ |
| 13 | "l.addc %0, %1, %2\n\t" |
| 14 | : "=r"(a) |
| 15 | : "r"(b), "r"(c) |
| 16 | ); |
| 17 | if (a != result) { |
| 18 | printf("first addc error\n"); |
| 19 | return -1; |
| 20 | } |
| 21 | |
| 22 | b = 0x01; |
| 23 | c = 0xffffffff; |
| 24 | result = 0x80000001; |
| 25 | __asm |
| 26 | ("l.add r1, r1, r0\n\t" /* clear carry */ |
| 27 | "l.addc %0, %1, %2\n\t" |
| 28 | "l.movhi %2, 0x7fff\n\t" |
| 29 | "l.ori %2, %2, 0xffff\n\t" |
| 30 | "l.addc %0, %1, %2\n\t" |
| 31 | : "=r"(a) |
| 32 | : "r"(b), "r"(c) |
| 33 | ); |
| 34 | if (a != result) { |
| 35 | printf("addc error\n"); |
| 36 | return -1; |
| 37 | } |
| 38 | |
| 39 | return 0; |
| 40 | } |