extern char *p; extern char clabel[ ]; extern char buf[ ]; extern char literals[16][8]; extern char hextab[ ]; extern char dectab[ ]; extern char octtab[ ]; extern char alptab[ ]; extern char oprtab[ ]; extern char (*fn)(); extern char *avec[ ]; extern char *lvec[ ]; extern int tp; extern int nslot; extern int nlit; extern int nfmt; extern int nops; extern int nsym; extern int nline; extern int nerr; extern int sym; extern int mem; extern char mem4[ ]; extern int fd; extern struct node tree[ ]; extern struct tbl s2[ ]; extern struct tbl parse[ ]; extern struct fd format[ ]; extern struct od *opcode; extern struct st symtab[ ]; extern struct ht head; extern struct tbl e1[NE1]; extern struct tbl s1[NS1]; extern struct tbl s3[NS3];