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C/C++ Source or Header  |  1988-08-11  |  327 b   |  22 lines
  1. /*
  2.  *    tone -- set the frequency of the sound generator
  3.  */
  4.  
  5. #include <stdio.h>
  6.  
  7. main(argc, argv)
  8. int argc;
  9. char **argv;
  10. {
  11.     extern void setfreq(unsigned int);
  12.  
  13.     if (argc != 2) {
  14.         fprintf(stderr, "Usage: tone hertz\n");
  15.         exit(1);
  16.     }
  17.  
  18.     /* set the frequency in Hertz */
  19.     setfreq(atoi(*++argv));
  20.     exit(0);
  21. }
  22.