Date   : Sat, 07 Sep 2002 20:43:59 +0100
From   : "Richard Gellman" <ricky@...>
Subject: Re: Regaining disc drive memory work space

>> >   When using a disc drive on a BBC micro, Page is moved from &E00 to
>> > &1900 to create memory work space for the disc drive. Is possible  to
>> > regain the disc drive work space once the program has loaded. I.e
>> > resetting page back to &E00. Can anybody give an example of various
>> > techniques on how to achieve this.
>
>> You write your program thus:
>>
>> 10 IF PAGE<>&E00 GOTO 9000
>> ...
>> your program
>> ...
>> 9000 FOR I%=0 TO TOP-PAGE STEP
>> 4:!(I%+&E00)=!(i%+PAGE):NEXT:PAGE=&E00:OLD:RUN
>
>[snip]
>
>> OLD is needed to ensure BASIC is aware of the new program in memory.
>
>Except of course OLD can only be used at the command prompt,not included in
>a program line,
>Sprow.

Ah..

Perhaps OLD is not needed then. But I've seen programs relocate in this
manner :)

-- Richard