Denial

My SD system as all done in code by an AVR, which was memory mapped to the rest of the system. Initialization was at 400KHz, and then I could speed up a lot more. Some cards faster than others. I never did settle on a top speed, ans planned to make some type of "auto speed detect" code to ...

Huge difference indeed. I wonder what performance the VIC will end up with when my giant breadboard is up and running? MFLOPS is all about computation, so the 6502 crawls with no multiply and divide. My system will have 16 bit math (Add, Sub, Mul, Div, Sin), all working as single cycle lookup tables...

The Cray-1, with 160 MFLOPS in 1975 was a real screamer! The higher end 32 bit PIC micros I use can only crank out 15 MFLOPS, running at 200 MHz. I tried to find an MFLOPS rating for a 6502 at 1MHz, but nothing came up. Brad Now, what is that beast in the photo your posted? It's a Cray-1 or Cray X-M...

At least 300, perhaps 500! Here is just the Video Generator part of the unit I prototyped a few years ago. I ended up filling both boards, and that alone was 200+ ICs. That unit was VGA, which is WAY easier to do than NTSC, which I am doing now. That unit only did 256 colors, and now I am also doing...

Not much basement time lately. It's harvest season, so I use a pitchfork a lot more than a soldering iron these months! I did manage to prototype the logic for my theoretical "Amiga Killer" color generator, and wadda ya know... it worked! 4096 colors?... yeah, that used to be a lot, but my...

Great progress again! Are you going to fully implement FAT32? I would be interested in seeing that work as 6502 code. When I added SD to my other project, FS seemed like so much overhead that I ended up using RAW format, and made a PC program to write to the card as one giant 2GB binary. A simple fi...

Although I have moved on from the project that Mike has mentioned, I did manage to do exactly what he had explained would be required. In the end, I had to take every signal from the expansion port, and consider such things as the propagation difference between VRW, CRW, PH2, IO, BLK, and a lot of o...

Congrats... a great milestone!

...Exploding Kittens?

Brad

I did something like this back in the day as well! I had one of the only VICs that could play real music, and do rhythm tracks for my lead guitar practice. At one point my goal was to create a crude media player that could even catalog and find the songs on the tape based on how long it took to fast...

Every Saturday, I have been grabbing another composite CRT TV from the recycle at my dump, since these are getting more difficult to find. I prefer 14 inchers, but have a few 20 inch units as well. So far, I have collected a dozen decent AV compatible TVs. I also picked up a 1702 on EBay for $100 th...

A bit late in my response, but here is $4.00 solution to get you ANY precision frequency desired.
I use these all the time...

https://www.digikey.com/products/en?mpa ... -PHB&v=114

Doh... didn't even see the post above from Eslapion!
Brad

Correct on all points! My A500 was the last computer I actually enjoyed. After that, it became an arms-race of upgrades and bug swatting. Enjoyable computing died when L.B.M. tanked Commodore, man! My VIC will be able to do a lot of things the Amiga could not though, but that is more a testament to ...

Thanks for the comments. The name is not set in stone, and a better name may come along as the project comes together. Since I started this as a "one-off" project, I did not plan to include PAL, but it could be done with some code modification. Of course, the real issue would be not having...

Thanks! Looks like I am roped into posting regular updates now! I never considered making it into a commercial product, but would certainly look to make a few more if there was interest. Soon I will post some trial videos of the hardware working, so I will gauge the interest. It's gardening season f...

Having looked at the source a bit, I agree... no point trying. I will continue to use my AVR based VIC Bus Emulator for the "smoke testing". My final project is a culmination of all other projects I have posted here. Realizing that I spend more of my free time posting photos than actually ...