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oot/src/libultra_boot_O2/_Litob.c
2020-03-22 22:20:03 +01:00

59 lines
1.3 KiB
C

#include <global.h>
#include <stdlib.h>
#include <string.h>
#include <ultra64/printf.h>
#define BUFF_LEN 0x18
u8 D_8000AF70[] = "0123456789abcdef";
u8 D_8000AF84[] = "0123456789ABCDEF";
void _Litob(_Pft* args, u8 type) {
u8 buff[BUFF_LEN];
const u8* num_map;
s32 base;
s32 buff_ind;
u64 num;
lldiv_t quotrem;
if (type == 'X') {
num_map = D_8000AF84;
} else {
num_map = D_8000AF70;
}
base = (type == 'o') ? 8 : ((type != 'x' && type != 'X') ? 10 : 16);
buff_ind = BUFF_LEN;
num = args->v.ll;
if ((type == 'd' || type == 'i') && args->v.ll < 0) {
num = -num;
}
if (num != 0 || args->prec != 0) {
buff[--buff_ind] = num_map[num % base];
}
args->v.ll = num / base;
while (args->v.ll > 0 && buff_ind > 0) {
quotrem = lldiv(args->v.ll, base);
args->v.ll = quotrem.quot;
buff[--buff_ind] = num_map[quotrem.rem];
}
args->n1 = BUFF_LEN - buff_ind;
memcpy(args->s, buff + buff_ind, args->n1);
if (args->n1 < args->prec) {
args->nz0 = args->prec - args->n1;
}
if (args->prec < 0 && (args->flags & (FLAGS_ZERO | FLAGS_MINUS)) == FLAGS_ZERO) {
buff_ind = args->width - args->n0 - args->nz0 - args->n1;
if (buff_ind > 0) {
args->nz0 += buff_ind;
}
}
}