Second screen on screen 1

 BBS: Inland Empire Archive
Date: 04-27-92 (09:44)             Number: 113
From: MATT HART                    Refer#: NONE
  To: TYLER TOMSEN                  Recvd: NO  
Subj: Second screen on screen 1      Conf: (2) Quik_Bas

 TT> Does anyone out there know of a way to
 TT> use a second screen on SCREEN 13 in
 TT> Qbasic, I am working on a project to write a game, and a second screen
 TT> (like the one in SCREEN 9 would be very
 TT> helpful) Thanx to anyone that could

Not like you can on screen 9.  However, the screen layout on mode 13 is very
simple - 1 byte per pixel starting at Segment A000:0000 for
64K of screen data.  This makes it easy to store extra
screens in memory - like an integer array or long int
array, and POKE them in when needed.  If you have access to
an assembler, I have a fast memory copy routine I could
post that would make the screens appear almost instantly.
OR you could store screens on DISK and retrieve them when
convenient.
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 * Origin: Midnight Micro!  V.32/REL  (918)451-3306 (1:170/600)