diff options
Diffstat (limited to 'target-ppc/mfrom_table_gen.c')
-rw-r--r-- | target-ppc/mfrom_table_gen.c | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/target-ppc/mfrom_table_gen.c b/target-ppc/mfrom_table_gen.c new file mode 100644 index 0000000000..ab4b1cc0bd --- /dev/null +++ b/target-ppc/mfrom_table_gen.c @@ -0,0 +1,33 @@ +#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; +} |