Search found 14 matches

by nerdy1
Tue Aug 07, 2018 8:23 am
Forum: Newbies
Topic: Should I start with a 6502?
Replies: 39
Views: 8783

Re: Should I start with a 6502?

Could the 6809 be a viable option as well?

Well... That's one on my list to build a system around but I'll tell you this, the 6502.org forum really helped me get started building my Tower of Eightness WDC65C02 based system, an ongoing project that keeps me out of trouble.

Ditto on how useful ...
by nerdy1
Mon Mar 26, 2018 9:17 pm
Forum: Hardware
Topic: Interfacing stock 6502 to TMS9918
Replies: 72
Views: 41971

Re: Interfacing stock 6502 to TMS9918

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by nerdy1
Sun Mar 18, 2018 11:17 pm
Forum: Hardware
Topic: Interfacing stock 6502 to TMS9918
Replies: 72
Views: 41971

Re: Interfacing stock 6502 to TMS9918

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by nerdy1
Sun Mar 18, 2018 9:54 am
Forum: Hardware
Topic: Interfacing stock 6502 to TMS9918
Replies: 72
Views: 41971

Re: Interfacing stock 6502 to TMS9918

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by nerdy1
Sun Mar 18, 2018 7:03 am
Forum: Hardware
Topic: Interfacing stock 6502 to TMS9918
Replies: 72
Views: 41971

Re: Interfacing stock 6502 to TMS9918

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by nerdy1
Sun Mar 11, 2018 12:19 am
Forum: Hardware
Topic: Interfacing stock 6502 to TMS9918
Replies: 72
Views: 41971

Re: Interfacing stock 6502 to TMS9918

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by nerdy1
Sun Mar 11, 2018 12:10 am
Forum: Hardware
Topic: Interfacing stock 6502 to TMS9918
Replies: 72
Views: 41971

Re: Interfacing stock 6502 to TMS9918

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by nerdy1
Sat Mar 10, 2018 8:02 am
Forum: Hardware
Topic: Interfacing stock 6502 to TMS9918
Replies: 72
Views: 41971

Re: Interfacing stock 6502 to TMS9918

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by nerdy1
Thu Feb 15, 2018 1:56 am
Forum: Hardware
Topic: Best approach for large, slow computer
Replies: 5
Views: 3586

Re: Best approach for large, slow computer

Thanks for the links and comments everyone. It's appropriate that I should read the primer again, because in a lot of ways I feel like I'm starting over again!
by nerdy1
Wed Feb 14, 2018 10:15 am
Forum: Hardware
Topic: Best approach for large, slow computer
Replies: 5
Views: 3586

Best approach for large, slow computer

Hello again everyone!

I have been building a computer on breadboard and have been having very good luck with it up until now. I recently attempted to increase the size of my project from 4 breadboard panels, to 8. At the same time, I attempted to simplify my mess of wiring by extending the entire ...
by nerdy1
Thu Jan 25, 2018 12:23 am
Forum: Hardware
Topic: 6522 as a PS2 keyboard controller?
Replies: 26
Views: 13633

Re: 6522 as a PS2 keyboard controller?

Thanks again Garth. It's important to me that my keyboard should be interrupt driven. I don't mind if it takes me a while to nail down the software.
Just so I am clear though, we are not talking about using the VIA's shift registers at all correct? We are just talking about using it to take control ...
by nerdy1
Wed Jan 24, 2018 7:11 am
Forum: Hardware
Topic: 6522 as a PS2 keyboard controller?
Replies: 26
Views: 13633

Re: 6522 as a PS2 keyboard controller?

Thank you everyone for those links -- that is very helpful!
I am thrilled that it not only looks possible to do with a VIA, but there is even source code for me to "borrow"! (I think I will want an interrupt-based version of Daryl's code, but hopefully that will just be a software-only modification ...
by nerdy1
Wed Jan 24, 2018 4:56 am
Forum: Hardware
Topic: 6522 as a PS2 keyboard controller?
Replies: 26
Views: 13633

6522 as a PS2 keyboard controller?

Hello all,

I was wondering if any of you had ever heard of, or had experience with, using a 6522 as a keyboard controller for a PS/2 keyboard? I don't wish to use a microcontroller in my design, but I also don't wish to design and build my own keyboard!
The PS2 keyboard protocol is kind of funky ...
by nerdy1
Wed Jan 24, 2018 4:26 am
Forum: General Discussions
Topic: Introduce yourself
Replies: 716
Views: 418308

Re: Introduce yourself

Hello everyone,

Just thought I should give a brief introduction before I start asking lots of dumb questions!
I followed the software track of things, learning my first programming as a kid on the good ol' Commodore 64. One of my earliest programs drew lines on the C64 320x200 monochrome "hi-res ...