Version 6.4 changes to Cat Doctor

This version modifies the Type function to provide a left margin
(defaulting to 5) and word wrap.  These are configurable and also
defeatable when the printer question is asked:

        Open apple defeats margin.

        Closed apple (option) defeats word wrap.

Configurable locations in Cat Doctor (these start at byte $27
in SiderFile):

Byte 03 = 02...........blink rate
Byte 04 = 00...........bell default (change by making it 87)
Byte 05 = 00...........prompt default ( " )
Byte 06 = 01...........printer slot
Byte 07 = 4F (dec 79)..line length
Byte 08 = 3A (dec 60)..page length
Byte 09 = E5...........various flags (see below)
Byte 0A = 60...........unit number of Format default device

Following these is the filetype list.

Byte 09 has this significance:

  Bits:  1 1 1 0 0 1 0 1  = byte E5
         | | | | -------
         | | | |    |
         | | | |    |
         | | | |    `--- left margin (0-15)
         | | | |
         | | | `---------reserved
         | | |
         | | `-----------defeats word wrap if 0
         | |
         | `-------------reserved for SiderFile use
         |
         `---------------catalog entry printed with Type if 0