check_abs.c (808B)
1 #include <stdio.h> 2 #include <stdlib.h> 3 #include <stdint.h> 4 #include "sys.h" 5 #include "crisutils.h" 6 7 static always_inline int cris_abs(int n) 8 { 9 int r; 10 asm ("abs\t%1, %0\n" : "=r" (r) : "r" (n)); 11 return r; 12 } 13 14 static always_inline void 15 verify_abs(int val, int res, 16 const int n, const int z, const int v, const int c) 17 { 18 int r; 19 20 cris_tst_cc_init(); 21 r = cris_abs(val); 22 cris_tst_cc(n, z, v, c); 23 if (r != res) 24 err(); 25 } 26 27 int main(void) 28 { 29 verify_abs(-1, 1, 0, 0, 0, 0); 30 verify_abs(0x80000000, 0x80000000, 1, 0, 0, 0); 31 verify_abs(0x7fffffff, 0x7fffffff, 0, 0, 0, 0); 32 verify_abs(42, 42, 0, 0, 0, 0); 33 verify_abs(1, 1, 0, 0, 0, 0); 34 verify_abs(0xffff, 0xffff, 0, 0, 0, 0); 35 verify_abs(0xffff, 0xffff, 0, 0, 0, 0); 36 verify_abs(-31, 0x1f, 0, 0, 0, 0); 37 verify_abs(0, 0, 0, 1, 0, 0); 38 pass(); 39 return 0; 40 }