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bigscrn.doc
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Text File
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1994-10-15
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2KB
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58 lines
BigScrn V1.0 by Julian F. Reschke
------------ Hensenstrasse 142
D-4400 Muenster
West Germany
Netaddr: ONM07@DMSWWU1A.{BITNET,UUCP}
JULIAN@MUTEC.UUCP
Published by ST Magazin 11/88
Basicals
--------
'BigScrn' simulates a virtual screen in any resolution.
This is done by modifying the (now documented) Line A variables on a
negative offset.
If you select a horizontal size of 640 pixels BigScrn will scroll by
changing the hardware's screen-base register. Otherwise, the visible
part of the virtual screen will be copied into the real screen every
fourth vertical blank.
Problems
--------
There are no problems running this program under the new TOS 1.4
from 1988.
Problems with the Blitter TOS 1.2 will be bypassed using another
32 KB (safety-) buffer and a new mouse handler.
The program will not run under the old TOS 1.0 (first ROM version),
because its GEM functions cannot handle screens larger than 32 KB.
Usage
-----
Copy BigScrn.PRG into your AUTO folder (it _must_ be started before
GEM is initialized!).
Hold down Control, Shift, Alternate or CapsLock while booting. You'll
get a menu then. Pressing space will use the settings for the current
session, Return will save the settings for future restarts.
ALT-HELP saves the whole screen as a standard VDI bitimage file onto
disk. You can even load them into 1st Word plus (up to a certain size)
and Timeworks!
This program may be copied freely
but only together with this documentation !
This program is public domain and may not be used commercially !