usr/src/usr.bin/pascal/pdx/runtime.h

/*-
 * Copyright (c) 1980 The Regents of the University of California.
 * All rights reserved.
 *
 * %sccs.include.redist.c%
 *
 *      @(#)runtime.h   5.3 (Berkeley) %G%
 */

/*
 * Definitions for the runtime environment.
 *
 * In general, runtime organization is language, machine, and
 * even compiler dependent.
 */

BOOLEAN isactive();             /* tell if a symbol is currently active */
ADDRESS entry_addr();           /* entry address of current proc/func */
ADDRESS entry_point();          /* point where environment is setup */
ADDRESS return_addr();          /* return address of current proc/func */
ADDRESS caller_addr();          /* entry of caller of current proc/func */
int where();                    /* print out currently active procedures */
int dump();                     /* dump the world */
int callproc();                 /* call a procedure */
int procreturn();               /* return from a "call"-ed procedure */
ADDRESS address();              /* address of a variable */
ADDRESS firstline();            /* address of first line in a procedure */
int findbeginning();            /* find address of beginning of a procedure */
int runtofirst();               /* step to first line in current procedure */
ADDRESS lastaddr();             /* address of last line in program */
ADDRESS fparamaddr();           /* entry address of a function parameter */