LISTING FOR  >spec>on>11/30/82>adm3a.ctl
COMPILED BY Multics LISP Compiler, Version hc9.2, June 5, 1981
ON 11/30/82  1528.7 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.      *
;;; *                                                         *
;;; ***********************************************************
;;;

;;;
;;;       ADM3 control package
;;;	Created by Bob Frankston with Bernie's help
;;;       10 Mar 1979
;;;	BSG - Flushed DCTL-kill-line for tty-no-cleolp 2/14/80
;;;

(declare (special X Y screenheight tty-type))
(declare (special screenlinelen))
(declare (special idel-chars-availablep idel-lines-availablep tty-no-cleolp))

; Initialize terminal and terminal control package.
(defun DCTL-init ()
       (setq screenheight 24.)              ; 20 lines for editing
       (setq screenlinelen 79.)
       (setq tty-type 'adm3)
       (setq idel-lines-availablep nil idel-chars-availablep nil tty-no-cleolp t)
       (Rtyo 32)                            ; clear screen
       (setq X 0 Y 0))


; Move terminal's cursor to desired position.
(defun DCTL-position-cursor (x y)
       (prog (ycost                             ; cost of y and x relative
              xcost                             ; movement
              what                              ; which movement is best
              cost)                             ; cost of that movement
             (and (= x X)(= y Y)                ; return right away if already
                  (return nil))                 ; at desired position
             (setq what 1                       ; 1: "home and relative move"
                   cost (+ 1 y x))              ; cost is V + H + 1
             (and (> cost 4)                    ; direct cursor address better?
                  (setq what 0                  ; 0: "direct cursor address"
                        cost 4))                ; cost is 4 characters
             (setq ycost (abs (- y Y)))
             (setq xcost (abs (- x X)))
             (and (< (+ ycost xcost) cost)
                  (setq what 3                  ; 3: "relative move"
                        cost (+ ycost xcost)))
             (and (< (+ 1 ycost x) cost)
                  (setq what 2))                ; 2: "CR and relative move"
             (cond ((= what 0)

; Direct Cursor Address

		(Rtyo 33)
		(Rprinc "=")
                    (Rtyo (+ 40 y))
		(Rtyo (+ 40 x))
                    (setq X x Y y)
                    (return nil))

                   ((= what 1)                  ; home and relative move?
                    (Rtyo 36)                   ; home
                    (setq X 0 Y 0))             ; keep track of cursor
                                                ; fall through to relative move

                   ((= what 2)                  ; CR and relative move?
                    (Rtyo 15)                   ; CR
                    (setq X 0)))                ; keep track of cursor
                                                ; fall through to relative move

; Relative Move

             (cond ((< X x)
                    (do ex X (1+ ex)(= ex x)(Rtyo 14)))
                   ((< x X)
                    (do ex x (1+ ex)(= ex X)(Rtyo 10))))
             (cond ((< Y y)
                    (do wy Y (1+ wy)(= wy y)(Rtyo 12)))
                   ((< y Y)
                    (do wy y (1+ wy)(= wy Y)(Rtyo 13))))
             (setq X x Y y)
             (return nil)))


; Output string.
(defun DCTL-display-char-string (string)
       (setq X (+ X (stringlength string)))
       (Rprinc string))


; Clear to end of screen.
(defun DCTL-clear-rest-of-screen ()
    (Rtyo 32)(setq X 0 Y 0))

; Clear to end of screen.
(defun DCTL-clear-rest-of-screen ()		;Dont have eos, do all.
       (Rtyo 32)(setq X 0 Y 0))

			Functions Defined

Name			Offset		Offset		Name


DCTL-clear-rest-of-screen        364		   0		DCTL-init
DCTL-clear-rest-of-screen        402		   36		DCTL-position-cursor
DCTL-display-char-string         350		   350		DCTL-display-char-string
DCTL-init                        0		   364		DCTL-clear-rest-of-screen
DCTL-position-cursor             36		   402		DCTL-clear-rest-of-screen





			Functions Referenced

Rprinc                                  Rtyo                                    stringlength


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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