More schematics from 30 years ago. This is for a computer known internally as the C64+ or C64 Plus and has built in 80 column support. Unfortunately there is a page missing.
Click on the schematic to see a larger image.
This is the Commodore LCD machine which was not produced. The president of Tandy told our then president of Commodore Business Machines that there was no money in "portable computers".
Bil Herd Asks Chuck Peddle if he is really an Evil Genius since the T-800 Combat Chassis "Terminator" and the "Bender" bending chassis are 6502 based. This is from a multi hour interview for the C
I had a great time with Earl Evans who makes interviewing look easy (It's not). The interview which coincided with teh 100th episode of the Retrobits Podcast is from October 2007 and turned into
I am a BIG fan of this software, DSP's, Robotics and just fun. Compatible with Phidgets IO modules.
Well done Bil.
Here's an idea for a new article or video.
More info about the C64+, perhaps just some stories, meetings etc.
There is a small amount of information on how this worked at the following URL:
http://6502.org/users/andre/hwinfo/crtc/uses.html#c64_80col
Apparently, the 6545 ic (on image/page 6) takes over when in 80 Col mode. There is a pass-through for the VIC chip output. (Just like 80-Col addon cartridges for the C64).
The Wiki page for the C128's 8565 80-Col controller says: "The 8568 embodied many of the features of the older 6545E monochrome CRT controller plus RGBI color."
http://en.m.wikipedia.org/wiki/MOS_Technology_8568
..So I guess some of the work on the C64plus may have been carried forward into the design of the C128.
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