test_div.c (2038B)
1 #include <assert.h> 2 #include <inttypes.h> 3 #include <stdio.h> 4 5 #define TEST_DIV(N, M) \ 6 static void test_div_ ##N(uint ## M ## _t rj, \ 7 uint ## M ## _t rk, \ 8 uint64_t rm) \ 9 { \ 10 uint64_t rd = 0; \ 11 \ 12 asm volatile("div."#N" %0,%1,%2\n\t" \ 13 : "=r"(rd) \ 14 : "r"(rj), "r"(rk) \ 15 : ); \ 16 assert(rd == rm); \ 17 } 18 19 #define TEST_MOD(N, M) \ 20 static void test_mod_ ##N(uint ## M ## _t rj, \ 21 uint ## M ## _t rk, \ 22 uint64_t rm) \ 23 { \ 24 uint64_t rd = 0; \ 25 \ 26 asm volatile("mod."#N" %0,%1,%2\n\t" \ 27 : "=r"(rd) \ 28 : "r"(rj), "r"(rk) \ 29 : ); \ 30 assert(rd == rm); \ 31 } 32 33 TEST_DIV(w, 32) 34 TEST_DIV(wu, 32) 35 TEST_DIV(d, 64) 36 TEST_DIV(du, 64) 37 TEST_MOD(w, 32) 38 TEST_MOD(wu, 32) 39 TEST_MOD(d, 64) 40 TEST_MOD(du, 64) 41 42 int main(void) 43 { 44 test_div_w(0xffaced97, 0xc36abcde, 0x0); 45 test_div_wu(0xffaced97, 0xc36abcde, 0x1); 46 test_div_d(0xffaced973582005f, 0xef56832a358b, 0xffffffffffffffa8); 47 test_div_du(0xffaced973582005f, 0xef56832a358b, 0x11179); 48 test_mod_w(0x7cf18c32, 0xa04da650, 0x1d3f3282); 49 test_mod_wu(0x7cf18c32, 0xc04da650, 0x7cf18c32); 50 test_mod_d(0x7cf18c3200000000, 0xa04da65000000000, 0x1d3f328200000000); 51 test_mod_du(0x7cf18c3200000000, 0xc04da65000000000, 0x7cf18c3200000000); 52 53 return 0; 54 }