COMMENTS ON TWIST SCROLL PROGRAM
                       ================================

                                   By ICTARI

    This program does not work correctly on our machine because we have 4Mb
    of memory and this causes the screen to be corrupted. A quick glance at
    the code shows that the screen  addresses are fixed at addresses $78000
    and $70000 which are not valid on  machines  with more than 1Mb. We did
    try changing the  addresses  to  higher  values  but  this  didn't work
    either. The program does work OK if we limit the RAMtop to 1Mb with the
    MEMSET program.

    It would also be useful if the  program could display a text file which
    which could be placed on the disk  rather than having to enter the text
    into the source code itself as text  strings. This would be a much more
    flexible system.  Another  problem  with  this,  however,  is  that the
    program does not display lower  case  characters and presumably some of
    the other character set.

    It would also be nice to  have  a  more colourful text display, perhaps
    embedding control codes in the text file could change the colour of the
    text in mid-scroll. Perhaps even  different fonts would further improve
    the presentation, a bit trickier though we think.

    Looking at the source code there seems  to  be an awful lot of repeated
    code, could this  be  shortened  with  sub-routines  or  is timimg very
    critical ? The program only  runs  properly  in low resolution but does
    not error out  if  run  in  any  other  resolution  which  is  not good
    programming.

    If any member would like to  have  a  go  at tidying up the program and
    getting it to run on  any  machine  configuration  we will publish your
    efforts in a future issue. Thank-you.

    ICTARI.   April 1994