rwc.c

/*** *** *** *** 
 * Robot war cry
 *
 ** Chiptune generated via loop variable (bytebeat).
 *   use: 
 *   cc -o rwc rwc.c
 *   ./rwc |aplay
 *
 *   Discovered by: danielinux
 *   Source code license: GPL
 *
 */
#include <stdio.h>
#include <fcntl.h>
#include <unistd.h>
#include <stdint.h>
#include <stdlib.h>

int main(void) 
{
    
    unsigned t=0;
    unsigned loops[8]={8, 10, 12, 8, 1, 10, 12, 8};
    unsigned  hiccups[8]={1,1,3,1,5,1,5,1};
    unsigned juice,tck,kick,glory,pity,groove,nostalgia,desolation,beat,bass;
    uint8_t out;
    srand(0);
    while(1) {
        tck = (t >> 15) % 8;
        juice = ((t >> 6) & 1)?((t>>4)<<1):((t>>5)<<1);
        kick = ((t|(t>>6)) >> 2)/hiccups[tck];
        groove = ((t << 3) | (t|loops[tck])) & 0x55;
        nostalgia = (((t << 7) | ((t<<5)/loops[tck])) * (t >> 7)) & 0x40;
        glory = ((t|(t>>5) >> 1)/hiccups[tck]) % 4;
        pity = (((((t << 2) | (t >> 3))/loops[tck])) << 4) & 0x3f;
        desolation = (((t >> 17) * ((t>>1) | (t << 1)))/loops[tck]) & 0x06;
        bass = (((((juice|(juice >> 4))%15))<<2)/loops[tck]) & 0xa0;
        beat = ((juice<<1) | (kick | glory)) & 0x55;
        out = 0xff & (beat|bass|pity|groove|nostalgia|desolation);
        write(STDOUT_FILENO, &out, 1); 
        t+=1;
    }
    return 0;
}