141 	execute(a);  in run()
145 Cell *execute(Node *u)	/* execute a node of the parse tree */  in execute()  function
189 		x = execute(a[0]);  in program()
198 			x = execute(a[1]);  in program()
207 		x = execute(a[2]);  in program()
239 	fcn = execute(a[0]);	/* the function itself */  in call()
259 		y = execute(x);  in call()
289 	y = execute((Node *)(fcn->sval));	/* execute body */  in call()
365 			y = execute(a[0]);  in jump()
372 			y = execute(a[0]);  in jump()
419 		x = execute(a[2]);		/* filename */  in awkgetline()
432 			x = execute(a[0]);  in awkgetline()
452 				x = execute(a[0]);  in awkgetline()
489 		Cell *x = execute(p);	/* expr */  in makearraystring()
516 	x = execute(a[0]);	/* Cell* for symbol table */  in array()
538 	x = execute(a[0]);	/* Cell* for symbol table */  in awkdelete()
563 	ap = execute(a[1]);	/* array name */  in intest()
809 	x = execute(a[1]);	/* a[1] = target text */  in matchop()
814 		y = execute(a[2]);	/* a[2] = regular expr */  in matchop()
857 	x = execute(a[0]);  in boolop()
863 		y = execute(a[1]);  in boolop()
870 		y = execute(a[1]);  in boolop()
891 	x = execute(a[0]);  in relop()
892 	y = execute(a[1]);  in relop()
962 	x = execute(a[0]);  in indirect()
985 	x = execute(a[0]);  in substr()
986 	y = execute(a[1]);  in substr()
988 		z = execute(a[2]);  in substr()
1036 	x = execute(a[0]);  in sindex()
1038 	y = execute(a[1]);  in sindex()
1139 				x = execute(a);  in format()
1183 		x = execute(a);  in format()
1383 		x = execute(a);  in format()
1401 	x = execute(a[0]);  in awksprintf()
1424 	x = execute(a[0]);  in awkprintf()
1451 	x = execute(a[0]);  in arith()
1455 		y = execute(a[1]);  in arith()
1520 	x = execute(a[0]);  in incrdecr()
1540 	y = execute(a[1]);  in assign()
1541 	x = execute(a[0]);  in assign()
1607 	x = execute(a[0]);  in cat()
1614 	y = execute(a[1]);  in cat()
1634 		x = execute(a[1]);  in pastat()
1636 		x = execute(a[0]);  in pastat()
1639 			x = execute(a[1]);  in pastat()
1652 		x = execute(a[0]);  in dopa2()
1658 		x = execute(a[1]);  in dopa2()
1662 		x = execute(a[2]);  in dopa2()
1680 	y = execute(a[0]);	/* source string */  in split()
1687 		x = execute(a[2]);  in split()
1696 	ap = execute(a[1]);	/* array name */  in split()
1857 	x = execute(a[0]);  in condexpr()
1860 		x = execute(a[1]);  in condexpr()
1863 		x = execute(a[2]);  in condexpr()
1872 	x = execute(a[0]);  in ifstat()
1875 		x = execute(a[1]);  in ifstat()
1878 		x = execute(a[2]);  in ifstat()
1888 		x = execute(a[0]);  in whilestat()
1892 		x = execute(a[1]);  in whilestat()
1908 		x = execute(a[0]);  in dostat()
1914 		x = execute(a[1]);  in dostat()
1925 	x = execute(a[0]);  in forstat()
1929 			x = execute(a[1]);  in forstat()
1933 		x = execute(a[3]);  in forstat()
1939 		x = execute(a[2]);  in forstat()
1950 	vp = execute(a[0]);  in instat()
1951 	arrayp = execute(a[1]);  in instat()
1961 			x = execute(a[2]);  in instat()
2074 	x = execute(a[1]);  in bltin()
2106 			y = execute(a[1]->nnext);  in bltin()
2176 			y = execute(nextarg);  in bltin()
2194 		y = execute(x);  in printstat()
2221 	x = execute(b);  in redirect()
2331  	x = execute(a[0]);  in closefile()
2427 		x = execute(a[1]);  in dosub()
2432 	x = execute(a[2]);	/* replacement string */  in dosub()
2439 		x = execute(a[3]);    /* source string */  in dosub()
2443 		x = execute(a[3]);    /* source string */  in dosub()