Instructions for all expansions

1) RAM-expansion 256kb by Hannes

The memory of 256kb is divided in 4 64kb banks. You can only use 240kb,
because you can't switch the memory lower than $1000. A further restriction
is possible if you use bit 7. The control-register for the expansion is
located at adress $fd16 or 64790.

Bit 0/1 Select RAM-bank (0-3), standard is RAM-bank 3
Bit 4/5 Bit 5 4
            0 0: Activate expansion by Hannes
            0 1: Activate expansion by Hannes
            1 1: Activate expansion by Hannes
            1 0: Activate expansion by CSORY
        Note: If you have no CSORY-expansion then set these bits both to "1"
        or "0" for compatibility to CSORY-expansion.
Bit 6   1: Allowes TED-access to RAM (for text, graphic) to RAM-bank selected
           with bits 0 and 1
        0: TED-acces to RAM only in bank 3, bits 0 and 1 ignored
        This function is available also in CSORY-expansion-mode
Bit 7   Switch-bound:
        0: >$0fff
        1: >$3fff 

Note: After switch-on the plus/4 all bits are "1". The standard bank is bank 3.
The bank 3 is always in the nonswitchable area.

2) RAM-expansion 256kB by CSORY
This expansion uses an other principle for access to the memory. So you can
use the whole memory of 256kB. Activate this expansion with bits 5 and 4 in
the control-register from the Hannes-expansion. The control-register for this
expansion is located at adress $fd15 or 64789

Bit 0-3 Selects one 16kb-block from the whole 256kb-memory (16 blocks)
Bit 6/7 Selects a 16kb window from the 64kb-processor-area (4 windows), in
        which the block should be displayed.

Note: Before you activate the expansion you should initialize this control-
register. You can't read this register. If you need a value from it later you
must store this value in a ram-adress. This expansion doesn't allow TED-
access to an other ROM-bank as 0-high (KERNAL). If you activate an other
ROM-bank the TED ignores this and read the datas from KERNAL (important for
character-set).