qemu-e2k/target-ppc/mfrom_table_gen.c

34 lines
652 B
C

#define _GNU_SOURCE
#include <stdint.h>
#include <stdio.h>
#include <math.h>
int main (void)
{
double d;
uint8_t n;
int i;
printf("static const uint8_t mfrom_ROM_table[602] =\n{\n ");
for (i = 0; i < 602; i++) {
/* Extremly decomposed:
* -T0 / 256
* T0 = 256 * log10(10 + 1.0) + 0.5
*/
d = -i;
d /= 256.0;
d = exp10(d);
d += 1.0;
d = log10(d);
d *= 256;
d += 0.5;
n = d;
printf("%3d, ", n);
if ((i & 7) == 7)
printf("\n ");
}
printf("\n};\n");
return 0;
}