LISTING FOR  >spec>on>11/30/82>glasstty.ctl
COMPILED BY Multics LISP Compiler, Version hc9.2, June 5, 1981
ON 11/30/82  1529.2 mst Tue
IN BEHALF OF Holmstedt.SysMaint.a



;;; ***********************************************************
;;; *                                                         *
;;; * Copyright, (C) Honeywell Information Systems Inc., 1982 *
;;; *                                                         *
;;; * Copyright (c) 1978 by Massachusetts Institute of        *
;;; * Technology and Honeywell Information Systems, Inc.      *
;;; *                                                         *
;;; ***********************************************************
;;;
;;;
;;;	Glass tty display control
;;;	From printing tty, BSG 6/29/78
;;;	Redone for new redisplay 7/7/78
;;;	For tty-no-cleolp, bsg 2/14/80

(declare (special X Y  screenheight idel-lines-availablep idel-chars-availablep screenlinelen tty-type tty-no-upmotionp tty-no-cleolp))
(declare (array* (notype (newscreen ?))))

(defun DCTL-init ()
   (setq X -777 Y -777)
   (setq tty-type 'teleray)
   (setq screenheight 24. screenlinelen 79.)
   (setq idel-chars-availablep nil idel-lines-availablep nil tty-no-upmotionp t tty-no-cleolp t))

(defun DCTL-position-cursor (x y)
 (prog ()
    (and (= x X)(= y Y)(return nil))
    (and (< X 0)(DCTL-crlf))
    (and (= y Y)
         (progn
	(cond ((and (= x 0)(> X 4))(DCTL-cret))
	      ((< X x)(DCTL-display-char-string
			(substr (or (cadr (newscreen Y)) "          ") (1+ X) (- x X))))
	       ((< (- X x) x) (do xx X (1- xx)(= xx x)(Rtyo 10)))
	       (t (DCTL-cret)
		(DCTL-position-cursor x Y)))
	(setq X x)    ;y is right by definition
	(return nil)))

	;; Definitely going to a new line at this point

    (DCTL-nextline)
    (setq Y y)
    (DCTL-position-cursor x y)))

(defun DCTL-assert-scpos (x y)
       (and x (setq X x))
       (and y (setq Y y)))

(defun DCTL-clear-rest-of-screen ())

(defun DCTL-nextline ()(Rtyo 12))

(defun DCTL-display-char-string (s)
     (Rprinc s)
     (setq X (+ X (stringlength s))))

(defun DCTL-cret ()
     (Rtyo 15)(setq X 0))

(defun DCTL-crlf ()
     (Rtyo 15)(Rtyo 12)(setq X 0))

			Functions Defined

Name			Offset		Offset		Name


DCTL-assert-scpos                174		   0		DCTL-init
DCTL-clear-rest-of-screen        206		   32		DCTL-position-cursor
DCTL-cret                        235		   174		DCTL-assert-scpos
DCTL-crlf                        250		   206		DCTL-clear-rest-of-screen
DCTL-display-char-string         220		   210		DCTL-nextline
DCTL-init                        0		   220		DCTL-display-char-string
DCTL-nextline                    210		   235		DCTL-cret
DCTL-position-cursor             32		   250		DCTL-crlf





			Functions Referenced

DCTL-cret                               DCTL-nextline                           Rtyo
DCTL-crlf                               DCTL-position-cursor                    stringlength
DCTL-display-char-string                Rprinc                                  substr


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Historical Background

This edition of the Multics software materials and documentation is provided and donated
to Massachusetts Institute of Technology by Group BULL including BULL HN Information Systems Inc. 
as a contribution to computer science knowledge.  
This donation is made also to give evidence of the common contributions of Massachusetts Institute of Technology,
Bell Laboratories, General Electric, Honeywell Information Systems Inc., Honeywell BULL Inc., Groupe BULL
and BULL HN Information Systems Inc. to the development of this operating system. 
Multics development was initiated by Massachusetts Institute of Technology Project MAC (1963-1970),
renamed the MIT Laboratory for Computer Science and Artificial Intelligence in the mid 1970s, under the leadership
of Professor Fernando Jose Corbato. Users consider that Multics provided the best software architecture 
for managing computer hardware properly and for executing programs. Many subsequent operating systems 
incorporated Multics principles.
Multics was distributed in 1975 to 2000 by Group Bull in Europe , and in the U.S. by Bull HN Information Systems Inc., 
as successor in interest by change in name only to Honeywell Bull Inc. and Honeywell Information Systems Inc. .

                                          -----------------------------------------------------------

Permission to use, copy, modify, and distribute these programs and their documentation for any purpose and without
fee is hereby granted,provided that the below copyright notice and historical background appear in all copies
and that both the copyright notice and historical background and this permission notice appear in supporting
documentation, and that the names of MIT, HIS, BULL or BULL HN not be used in advertising or publicity pertaining
to distribution of the programs without specific prior written permission.
    Copyright 1972 by Massachusetts Institute of Technology and Honeywell Information Systems Inc.
    Copyright 2006 by BULL HN Information Systems Inc.
    Copyright 2006 by Bull SAS
    All Rights Reserved