142 	execute(a);  in run()
146 Cell *execute(Node *u)	/* execute a node of the parse tree */  in execute()  function
190 		x = execute(a[0]);  in program()
199 			x = execute(a[1]);  in program()
208 		x = execute(a[2]);  in program()
240 	fcn = execute(a[0]);	/* the function itself */  in call()
260 		y = execute(x);  in call()
290 	y = execute((Node *)(fcn->sval));	/* execute body */  in call()
366 			y = execute(a[0]);  in jump()
373 			y = execute(a[0]);  in jump()
420 		x = execute(a[2]);		/* filename */  in awkgetline()
433 			x = execute(a[0]);  in awkgetline()
453 				x = execute(a[0]);  in awkgetline()
490 		Cell *x = execute(p);	/* expr */  in makearraystring()
517 	x = execute(a[0]);	/* Cell* for symbol table */  in array()
539 	x = execute(a[0]);	/* Cell* for symbol table */  in awkdelete()
564 	ap = execute(a[1]);	/* array name */  in intest()
810 	x = execute(a[1]);	/* a[1] = target text */  in matchop()
815 		y = execute(a[2]);	/* a[2] = regular expr */  in matchop()
858 	x = execute(a[0]);  in boolop()
864 		y = execute(a[1]);  in boolop()
871 		y = execute(a[1]);  in boolop()
892 	x = execute(a[0]);  in relop()
893 	y = execute(a[1]);  in relop()
962 	x = execute(a[0]);  in indirect()
982 	x = execute(a[0]);  in substr()
983 	y = execute(a[1]);  in substr()
985 		z = execute(a[2]);  in substr()
1033 	x = execute(a[0]);  in sindex()
1035 	y = execute(a[1]);  in sindex()
1136 				x = execute(a);  in format()
1180 		x = execute(a);  in format()
1380 		x = execute(a);  in format()
1398 	x = execute(a[0]);  in awksprintf()
1421 	x = execute(a[0]);  in awkprintf()
1448 	x = execute(a[0]);  in arith()
1452 		y = execute(a[1]);  in arith()
1517 	x = execute(a[0]);  in incrdecr()
1537 	y = execute(a[1]);  in assign()
1538 	x = execute(a[0]);  in assign()
1604 	x = execute(a[0]);  in cat()
1611 	y = execute(a[1]);  in cat()
1631 		x = execute(a[1]);  in pastat()
1633 		x = execute(a[0]);  in pastat()
1636 			x = execute(a[1]);  in pastat()
1649 		x = execute(a[0]);  in dopa2()
1655 		x = execute(a[1]);  in dopa2()
1659 		x = execute(a[2]);  in dopa2()
1677 	y = execute(a[0]);	/* source string */  in split()
1684 		x = execute(a[2]);  in split()
1693 	ap = execute(a[1]);	/* array name */  in split()
1854 	x = execute(a[0]);  in condexpr()
1857 		x = execute(a[1]);  in condexpr()
1860 		x = execute(a[2]);  in condexpr()
1869 	x = execute(a[0]);  in ifstat()
1872 		x = execute(a[1]);  in ifstat()
1875 		x = execute(a[2]);  in ifstat()
1885 		x = execute(a[0]);  in whilestat()
1889 		x = execute(a[1]);  in whilestat()
1905 		x = execute(a[0]);  in dostat()
1911 		x = execute(a[1]);  in dostat()
1922 	x = execute(a[0]);  in forstat()
1926 			x = execute(a[1]);  in forstat()
1930 		x = execute(a[3]);  in forstat()
1936 		x = execute(a[2]);  in forstat()
1947 	vp = execute(a[0]);  in instat()
1948 	arrayp = execute(a[1]);  in instat()
1958 			x = execute(a[2]);  in instat()
2073 	x = execute(a[1]);  in bltin()
2105 			y = execute(a[1]->nnext);  in bltin()
2120 		y = execute(a[1]->nnext);  in bltin()
2131 		y = execute(a[1]->nnext);  in bltin()
2142 		y = execute(a[1]->nnext);  in bltin()
2153 		y = execute(a[1]->nnext);  in bltin()
2164 		y = execute(a[1]->nnext);  in bltin()
2249 			y = execute(nextarg);  in bltin()
2288 			y = execute(nextarg);  in bltin()
2306 		y = execute(x);  in printstat()
2333 	x = execute(b);  in redirect()
2451  	x = execute(a[0]);  in closefile()
2547 		x = execute(a[1]);  in dosub()
2552 	x = execute(a[2]);	/* replacement string */  in dosub()
2559 		x = execute(a[3]);    /* source string */  in dosub()
2563 		x = execute(a[3]);    /* source string */  in dosub()
2681 	x = execute(a[4]);	/* source string */  in gensub()
2688 		y = execute(a[1]);  in gensub()
2692 	y = execute(a[2]);	/* replacement string */  in gensub()
2693 	h = execute(a[3]);	/* which matches should be replaced */  in gensub()