3D Construction Kit

[LoadWB]

80 Column for C64
http://commodore64.wikispaces.com/80+Column+Driver+For+C64

This intrigues me.  I used an ML program from God-knows-where (I wanna say Transactor, since that's where I found CBAT) in my BBS program which allowed the 64 mode of the 128 to use the 80-column VDC.  It's not very big and I may still have the source code -- I never got around to folding it into the final package though I had a test package compiled and running.

I also had a working driver for the Batteries Included BI-80 expansion card.  Neat stuff.

[LoadWB]

I wish I had 80 column mode back then for the c64.
The Chameleon seems to be a good add-on. I would have to see if it has 80 column.

When I looked at the source code in the link, these are routines to use a graphics screen to emulate 80 column mode (or implement an 80-column bit-mapped screen, however you want to look at it.)  I know Novaterm did this, and it worked very well, though you needed a monitor or a good TV to view it clearly.  Fortunately I had really good eyes.

Does the C128 have the ability to turn off the display like the Plus4 has?

I don't know how the Plus-4 does it.  I know I've seen the 80 column screen blanked, but I have no clue if that was hardware blanking or a trick like changing colors to all black.  So much old code to go over!