check_addcm.c (1918B)
1 #include <stdio.h> 2 #include <stdlib.h> 3 #include <stdint.h> 4 #include "sys.h" 5 #include "crisutils.h" 6 7 /* need to avoid acr as source here. */ 8 static always_inline int cris_addc_m(int a, const int *b) 9 { 10 asm volatile ("addc [%1], %0\n" : "+r" (a) : "r" (b)); 11 return a; 12 } 13 14 /* 'b' is a crisv32 constrain to avoid postinc with $acr. */ 15 static always_inline int cris_addc_pi_m(int a, int **b) 16 { 17 asm volatile ("addc [%1+], %0\n" : "+r" (a), "+b" (*b)); 18 return a; 19 } 20 21 #define verify_addc_m(a, b, res, n, z, v, c) \ 22 { \ 23 int r; \ 24 r = cris_addc_m((a), (b)); \ 25 cris_tst_cc((n), (z), (v), (c)); \ 26 if (r != (res)) \ 27 err(); \ 28 } 29 30 #define verify_addc_pi_m(a, b, res, n, z, v, c) \ 31 { \ 32 int r; \ 33 r = cris_addc_pi_m((a), (b)); \ 34 cris_tst_cc((n), (z), (v), (c)); \ 35 if (r != (res)) \ 36 err(); \ 37 } 38 39 int x[] = { 0, 0, 2, -1, 0xffff, -1, 0x5432f789}; 40 41 int main(void) 42 { 43 int *p = (void *)&x[0]; 44 #if 1 45 cris_tst_cc_init(); 46 asm volatile ("clearf cz"); 47 verify_addc_m(0, p, 0, 0, 0, 0, 0); 48 49 cris_tst_cc_init(); 50 asm volatile ("setf z"); 51 verify_addc_m(0, p, 0, 0, 1, 0, 0); 52 53 cris_tst_cc_init(); 54 asm volatile ("setf c"); 55 verify_addc_m(0, p, 1, 0, 0, 0, 0); 56 57 cris_tst_cc_init(); 58 asm volatile ("clearf c"); 59 verify_addc_pi_m(0, &p, 0, 0, 1, 0, 0); 60 61 p = &x[1]; 62 cris_tst_cc_init(); 63 asm volatile ("setf c"); 64 verify_addc_pi_m(0, &p, 1, 0, 0, 0, 0); 65 66 if (p != &x[2]) 67 err(); 68 69 cris_tst_cc_init(); 70 asm volatile ("clearf c"); 71 verify_addc_pi_m(-1, &p, 1, 0, 0, 0, 1); 72 73 if (p != &x[3]) 74 err(); 75 #endif 76 p = &x[3]; 77 /* TODO: investigate why this one fails. */ 78 cris_tst_cc_init(); 79 asm volatile ("setf c"); 80 verify_addc_m(2, p, 2, 0, 0, 0, 1); 81 p += 4; 82 83 pass(); 84 return 0; 85 }