[HECnet] Need help with VT220 down-line loadable characters (DECDLD)

[Mark Abene]

Sorry, I meant:
http://www.vt100.net/docs/vt220-rm/table4-9.html
...since you said vt220.

Pcms and/or Pt are probably what you're having issue with.

-Mark



On Tue, Jul 23, 2013 at 2:58 PM, Mark Abene <phiber at phiber.com> wrote:
Assuming you're aware of this page:
http://www.vt100.net/docs/vt510-rm/DECDLD

Johnny, wasn't there a version of Pac-man using DECDLD graphics written in your neck of the woods?   I seem to remember it was written in Pascal on TOPS-20, possibly at KTH.

-Mark



On Sun, Jul 21, 2013 at 11:03 AM, Julian Wolfe <julian at twinax.org> wrote:
I know this is a bit off-topic, but I was playing around with the DECDLD commands in the VT220 programmer's reference guide to make character graphics on the VT220 (I'm actually using Mac240, a VT220 emulator that has full DECDLD support at a VT220 level)

I'm having a problem getting characters to join at the top of the cell.   The top two pixels don't seem to meet.

I see some material about VT320 but the addressing of the matrix seems quite different on that terminal.

I'm using 7-bit encoding to create the characters.   Do   I need to use 8-bit in order to use the full matrix?

I'd be surprised if anyone on here has actually messed with this, but I thought it was worth a shot.

I can also toss my work at whoever has a VT220 lying around to see if they can test it as well.

Any input is appreciated (as long as I can decode it, ha ha)

Julian