typedef enum { turn, sew, hdCol, hdRow, tlCol, tlRow, 	/* quilt ops */
	       Eq, Neq,					/* relops    */
	       Copy,
	       Goto, IfGoto, 
	       Let,
	       FunCall,
	       Push, 					/*opd1*/
	       FormalParam,				/*opd1*/
	       Result,
               FunDef, ValDef, Label
	      } quadOps;

struct Quad { 	
	quadOps OP;				
	struct symentry * opd1;		/* symtab entry */
	struct symentry * opd2;	        /* symtab entry */
	char * name;                    /* for functionDef, Value, Labels */
	struct symentry * result;	/* symtab entry */
	char *	target;                 /* for Goto and IfGoto */
	struct Quad * prevQuad;
	struct Quad * nextQuad;
};