On: The earliest known versions of Dennis Ritchie's first C compiler

[salgernon]

This is cute:

  	switch (o=symbol()) {
    ....
  /* short constant */
  	case 21:
  	case21:
		*cp++ = block(1,21,ctyp,0,cval);
		goto tand;

   .... elsewhere in the switch ....

        		cval = -cval;
				goto case21;