The Commodore 64 font came out great, I now have a 100x75 screen area to play with.
The Font set I had didn't have the lower case characters but I can live with that.
I also had to move the Characters from position 0 to position 64 so I can use ordinary strings...

Jac,

I modified the code to use 8x8 chars in stead and use a Commodore 64 Font...
This was a lot easier than adding color per characters.
If you still have your code and know where it is, I'm interested to see your font so see if it is different from the C64 Font.

Looks like the Commodore 64 does ...

That is looking great, do you happen to have the vga_hires_text with the PETSCII font ?

I think I'm getting too caught up in changing the VGA driver, I haven't done much of 65C02 coding lately.
Got to fresh up on my 6502 and then learn 65C816...

Thanks Jac...

I'm looking for VGA generation though.
I've actually written some rudimentary TV drivers on the Propeller, not as good as the AiGeneric but it gave me a good understanding of the NTSC standard.

I did find some Tile VGA drivers, maybe I should have a closer look at them.

Thanks Jac.

I have updated the schematics on Github, just added the two pull up resistors...
At the same time, tidy up a little bit and removed old files...

I'm not making a Commodore 64 clone or anything, I just playing around with some hardware.
Since I had a couple of dead C=64s, I took a ...

Howdy...

Yes, that is simply some cheap plywood from Home Depot.
I made a hobby CNC machine earlier and used it to cut the base for the Zeberpupin computer.

I call it Zeberpupin in honor of the Dilbert cartoon, http://dilbert.com/strip/2011-11-21

Howdy...

Very interesting thread, I'm looking into adding memory to my W65C816SXB board, this seem like a perfect match...

Made a little board to bolt everything down to and the keyboard...

Starting to look like a little computer...

Got it all done and tested, seem to work OK.
Lots of interference between the SID emulation and VGA, will look into it later...

Now for the fun part, programming...

Thanks for the recommendation, I have finished the schematics and also update Github.
I replaced the diode in the schematic but kept the one on the prototype board.
https://github.com/alamorobotics/W65C81 ... d_VGA_SID/

I'm wrapping up the soldering and hope to be done tonight...

Thanks Garth for the IRQ primer, nice work...

That explains the diode, the schematics uses a MMSD4148 and I picked the through hole version of it.
What would be a better choice for through hole diode ?

Howdy...

I finished up the Propeller schematics and did a print to PDF, I think this would be the best way to post schematics.
Or do we prefer the monochrome ?

I'm not sure why there are diodes on the IRQ for the W65C22, the schematics I copied had them so I threw them in there... :lol:
http ...

Howdy...

Here is the monochrome version of the schematics.
I added the Propeller and 3.3V power supply over lunch.

Is there a way to export to PDF ?
That would probably be even better.
Still learning Eagle cad...

Got the first schematics added to GitHub...

https://github.com/alamorobotics/W65C81 ... rd_VGA_SID

Howdy...

There are some really interesting projects with the Propeller.
I recently tried to read the Address and Data bus of my W65C816SXB board with a propeller.
The propeller was not able to read it due to the fact that it runs @ 8MHz and my propeller only had a few cycles to read the data bus ...