xerox 19780626 IUFTP Functional Specification free download

File name 19780626_IUFTP_Functional_Specification.pdf

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