RickNel
Veteran Member
I've re-installed WordStar 3.0 for my CP/M system with VT100 terminal.
Basic cursor positioning is OK, but I can't get WordStar to deliver the correct delete sequences to clear the un-refreshed parts of the screen as it updates the display.
I've tried patching into WordStar's ERAEOL location the VT100 escape sequences for
"delete from cursor to end of line", "delete line containing cursor", delete from cursor to end of display" - none of them work so the display accumulates garbage from each screen.
In addition, I think some of the display control codes are interfering with the VT100 and corrupting keyboard dispatch, leading to freeze.
Does anyone have a reliable setup to share? There is one on line that appears at the top of a Google search for "WordStar VT100" - but it seems to have a few errors in it.
In particular, is a WordStar terminal initialisation sequence needed for the VT100? The terminal is already set up and working fine with CP/M before launching WordStar. Display control escape sequences that work in CP/M are not working through my WordStar 3.0.
I've seen some discussion of XON/XOFF issues with WordStar and VT100 - but my setup is using serial port with only hardware handshaking.
This setup has worked in the past, so I don't think I have a hardware problem.
Is a puzzlement.
Rick
Basic cursor positioning is OK, but I can't get WordStar to deliver the correct delete sequences to clear the un-refreshed parts of the screen as it updates the display.
I've tried patching into WordStar's ERAEOL location the VT100 escape sequences for
"delete from cursor to end of line", "delete line containing cursor", delete from cursor to end of display" - none of them work so the display accumulates garbage from each screen.
In addition, I think some of the display control codes are interfering with the VT100 and corrupting keyboard dispatch, leading to freeze.
Does anyone have a reliable setup to share? There is one on line that appears at the top of a Google search for "WordStar VT100" - but it seems to have a few errors in it.
In particular, is a WordStar terminal initialisation sequence needed for the VT100? The terminal is already set up and working fine with CP/M before launching WordStar. Display control escape sequences that work in CP/M are not working through my WordStar 3.0.
I've seen some discussion of XON/XOFF issues with WordStar and VT100 - but my setup is using serial port with only hardware handshaking.
This setup has worked in the past, so I don't think I have a hardware problem.
Is a puzzlement.
Rick