historical/m0-applesillicon.git/xnu-qemu-arm64-5.1.0/target/ppc/mfrom_table_gen.c

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2024-01-16 11:20:27 -06:00
#define _GNU_SOURCE
#include "qemu/osdep.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++) {
/*
* Extremely 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;
}