works nicely from the floppy

[bootsplash] / lutgen / lutgen.c

#include <stdio.h>
#include <math.h>

int main(void)
{
        int i;

        printf("sintab:\n");
        for(i=0; i<256; i++) {
                float x = sin((float)i / 128.0f * M_PI);
                printf("\tdb %d\n", (int)(x * 127.5f - 0.5f));
        }
        return 0;
}