This disk contains two kinds of code: code defining character sets 
(eg, for burning into EPROM and replacing the ISC character generator),
or for driving a printer.

ISCCHR.SRC --
    This is the bitmap for the standard character generator used by
    the Compucolor.  This hasn't been verified by me, though.

ISCCHR.MAC --
    Very similar to ISCCHR.MAC, but omits 60H - 7FH, on the assumption
    one of the later files fills in that range (see below).  There are
    also a handful of difference in characters 00H - 5FH relative to
    ISCCHR.SRC, so obviously both cannot be canonical, despite the filename.

SPCCHR.MAC --
    Slighty different character bitmaps for charactsr 60H - 7FH

LOWCHR.MAC --
    Replace standard glyphs with lower case characters, 60H - 7FH

NEWCHR.MAC --
    ISC characters, 00H - 5FH, slightly modified.

GRPH.SRC --
    Assembly language program to do a screen print off the computer
    and onto a Paper Tiger graphics printer.

CHRGEN.PRG --
    Dunno - gets FCS "ENSA" error when run.