diff options
Diffstat (limited to 'usr/klibc/libgcc/__udivmodsi4.c')
-rw-r--r-- | usr/klibc/libgcc/__udivmodsi4.c | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/usr/klibc/libgcc/__udivmodsi4.c b/usr/klibc/libgcc/__udivmodsi4.c new file mode 100644 index 0000000..54980f0 --- /dev/null +++ b/usr/klibc/libgcc/__udivmodsi4.c @@ -0,0 +1,32 @@ +#include <klibc/diverr.h> +#include <stdint.h> + +uint32_t __udivmodsi4(uint32_t num, uint32_t den, uint32_t * rem_p) +{ + uint32_t quot = 0, qbit = 1; + + if (den == 0) { + __divide_error(); + return 0; /* If trap returns... */ + } + + /* Left-justify denominator and count shift */ + while ((int32_t) den >= 0) { + den <<= 1; + qbit <<= 1; + } + + while (qbit) { + if (den <= num) { + num -= den; + quot += qbit; + } + den >>= 1; + qbit >>= 1; + } + + if (rem_p) + *rem_p = num; + + return quot; +} |