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19780626_IUFTP_Functional_Specification


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                                                                                           UROX SDD ARCH'IWS
                                                                                       I have read and undenrtcod
                                                                                      Paso s_ _ _- To- - . -
                                                    XEROX                            Beviewer________- Date-------
                                            BUSINESS SYSTEMS                         f of Pages     Ref 'lllS ()}) -1St
                                          Systems Development Department


To:         Distribution                                     Date:   June 26, 1978

From:       P. Jarvis                                        Org:    SDD/SP System Architecture

Subject:    IUFfP Functional Specification                   Filed: [Iris]    iutfp-cover.bravo

The attached document is a draft section of Pilot: The OIS Control Program Functional
Specification describing the facilities which support the IUTFP. The software interface which
supports the UTVFC will almost be identical.

I would much appreciate receiving your comments before incorporating this section into the
functional specification. Your comments can have a large impact; I circulate this draft more for
purposes of discussion hoping to reach a final consensus on the form of the display interface. The
salient points of this design include no hardware assist for implementing a cusor, low level support
for a very primitive display controller, and no software for encoding keyboard data into a series of
key strokes.



C:    J. Cameron. L. Clark. J. Frandeen, C. Hankins, P. Heinrich. C. Irby, P. Jarvis, W. Kennedy, G. Kusnick. H. tauer, M.
       Louros. W. Lynch. T. Malloy. R. Metcalfe. L. Padgett. G. Shaw, C. 'Thacker. T. Townsend
                      IUTFP Programmer's Guide        DRAFT -- June 21, 1978 .. DRAFT                      1



     This document can be found on [Iris]  iutfp-specs.bravo


     1.1 Client Control of the IUTFP

   The Intetim User Tenninal Full Page, IUTFP consists of a mouse, a keyboard, and a high resolution
   video display. The display is refreshed from a bit map in main storage. The 128 key keyboard and
 5 the three mouse buttons are unencpded; the controller maintains their state as a bit array in main
   storage along with two words for the x and y mouse coordinates.


     1.1.1 Creation of a IUTFP Channel

     To crcate an IUTFP channel the client calls

             IUTFP.Create: PROCEDURE[] RETURNS[IUTFP.ChanneIHandle]j

10 To delete the IUTFP channel, the client calls

             IUTFP.Delete: PROCEDURE[IUTFP.ChanneIHandle];

             IUTFP.ChanneIHandle: TYPE = PRIVATE



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