https://bitchin100.com/wiki/index.php?title=VT100#Comments_about_VT100_Terminal_support_for_Model_100
Have a read at the bottom. You want to lock line 8. Hope that helps. Altlcd starts at FCC0 hex and is 320 characters long. The lcd buffer keeps track of characters only. You need to call the printing routines to actually modify the screen. Cheers Steve On Friday, February 10, 2023, [email protected] <[email protected]> wrote: > Hi all, > > I've got a few questions for you all. > > 1. Is there any way to disable the LABEL button in a BASIC program? I have > found that if you press it during my game (Text Sweeper), it will shift the > entire minefield up by one row and print the Function Key defs. Of course > this renders the game into a pretty much irrecoverable state at the moment. > I don't store the graphical representation of the board anywhere, so to > recover from this is a bit of a pain, although doable. However, if I can > avoid this scenario entirely, that'd be great. > > 2. I read at one point there is a location in memory reserved for storing > the LCD character contents in memory when switching to TELCOM. Where is > this, and can I use that range of memory for the same purpose in my case (I > kind of want to add an instructions screen you can flip back and forth > between) > > 3. Does writing to video RAM locations cause the LCD to update directly? > Or is there a print subroutine that basically needs to be called? > > Best, > George >
