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tops10_tools_bb-fp64a-sb
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10,7/sed/sed.bwr
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BEWARE FILE FOR THE SED SCREEN EDITOR
SED %2(661)
SED, on TOPS-10 only, now uses the PSI system to intercept KSYS
countdown interrupts. The symbol, KSYMIN, in SEDSYM is set to 10 (ten).
This symbol is used to determine the when SED should start warning the
user of the impending KSYS. E.g. KSYMIN=^D10 means starting at 10 minutes
till KSYS, SED will start warning (message at bottom of screen) the user.
PUSH command has been implemenented for TOPS-10 7.03.
SED now supports VT200 series terminals. See SEDV20.KYS for keyboard
layout.
To report bugs and deficiencies, to ask questions or make
suggestions, contact
Ned Santee
Digital Equipment Corp.
MRO1-2/S43
200 Forest Street
Marlborough, Mass. 01752
SED %2(656)
SED runs on any processor that runs TOPS-10 or TOPS-20. However, if
you have a KA-10 set the assembly parameter "FTKA10" in SED.MAC
(FTKA10==1).
SED currently reads the file to be edited into core and writes it
out on exit. This limits the size of the edit file, the exact
restriction depending on the system's memory and virtual memory.
If you define both the current file and the alternate file to be the
same file, when you do SET-FILEs to toggle back and forth the cursor
may not be where you left it. (no harm is done, though).
If your terminals run at 9600 baud you may have a problem with the
terminal sending XON-XOFF pairs when it feels overworked. SED has a
hard time distinguishing those characters from the ^S and ^Q commands.
The easiest solution is to avoid using ^S and ^Q as commands and set
the NPG flag to tell SED to keep TTY PAGE in effect (read SED.MEM, the
installation guide, if you don't understand this). See the keyboard
layout in SED2.KYS for a suggested arrangement of keys which does not
use ^S and ^Q.