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⟦2cdf11664⟧ TextFile

    Length: 3938 (0xf62)
    Types: TextFile
    Names: »RELDESCR.T«

Derivation

└─⟦e0c43619c⟧ Bits:30005797 CR80 Disc pack ( Vol:FNJ1 861029/EC CR80 S/W Package II+III+IV+V+VII )
    └─ ⟦this⟧ »CSP005_V0501.D!CSS311.D!RELDESCR.T« 

TextFile

«ff»
*******************************************************

         R E L E A S E   D E S C R I P T I O N

*******************************************************




Module id number: CSS/311
--------------------------

Module name:      TTY DRIVER
-----------------------------------

Actual release:   11.04            Release date: 850517
-----------------------            --------------------

Previous release: 11.03            Release date: 850403
-----------------------            --------------------




New facilities:
---------------

    >>11.01<<

  1101  FP/840810   Able to use a MIC.
  1101  TLM/841101  The TTY driver now in MX systems awaits a signal
                    during initialization, to avoid race for the console
                    interface with ROOT.
                    MX ROOT version 0202 sends this signal when it
                    has finished system initialization.
                    As a consequence of this, This TTY driver cannot
                    be used in MX systems with older ROOT versions.

    The driver, itself, determines from the existance
    of a MIC, when the IV mod 64 = #3D, wheter to use
    MIC instructions, or MAP instructions.

    >>10.01<<

    Statistics gathering is noq included.
    Five 32-bits counters are updated:
      Number of write requests
      Number of read requests
      Number of abort requests
      Number of bytes written
      Number of bytes read

    >>09.01<<

    After being edited, the remainder of the line is
    outputted entirely. This produces the same screen
    image, as when the line was originally typed.
    (PR 739).

    A new mode has been introduced in this mode the
    driver will not echoe nor interpret any input
    character.
    This mode is entered (for one process), if exactly
    one character is output. and the value of this
    character is #80.
    The mode is left temporarily, when output from an-
    other process is processed or a Break-condition is
    encountered. In such cases, the next request from
    the process using the new mode, will be answered
    with a completion code of #680.
    The mode is left for good, when a Dismantle command
    is received from the process using the mode. (PR 895).

    If there are no (more) TAB stops defined, the cursor
    will not be moved. (PR 928).

Changes:
--------

    >>11.04<<

    Part of readit, handling MIC is now executing disabled.

    >>09.01<<

    The device address (iv) must now be sent to the driver
    in the initialization message instead of device address
    times four. This change was necessary in order to be able
    to execute on the CR80-MX.

    Access to and through transfer lists are now performed
    by calls to the module CSS/357. This change was imple-
    mented in order to make it possible to use the same dri-
    ver for AMOS, XAMOS, and MX-AMOS.

    If the received device address equals #3D, the driver as-
    sumes that it has to use the serial interface of a CR80-
    MX step 1 MAP. Otherwise it automatically finds out whe-
    ther the interface is an AV/24 or an SCM.

    All reservation messages are now answered with the pro-
    gram page of the driver. Further, the linelength and
    the mode bits (echoe, vdu, await terminal ready, wait
    200 ms after nl, and print FF) may be redefined.

Errors corrected:
-----------------

    >>11.03<<

    Error in typeit on MX Type 2 corrected.
    Error in readit on (X)AMOS corrected. (PR no. 1262).

    >>11.02<<

    Error in conversion of MIC status into old fashioned
    V24 status corrected.

    >>10.01<<

    Initialization messages are now also treated when received
    during execution of other commands.


Reported errors, not corrected:
-------------------------------

CPECRs implemented in current release:
--------------------------------------

    >>11.03<<

    PR 1262

    >>09.01<<

    739, 895, 928

Comments:
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