New Hardware Gives TRS-80 Color Computer Commodore 64 Sprites 

You fully recreated the VDG and added powerful features. Mind blown! Instead of a step closer we are one leap closer to fully recreating a CoCo 2 with modern components. Excellent work!

Thank you very much for your effort, I like your videos, our support to you is sincere. Rgds

Wow, this is the most exciting creation for the CoCo I’ve ever seen. It’s actually kinda special to me because I learned to program on the CoCo, my first computer, when i was 12 years old back in 1983, and since went on to develop professionally. So, you could say i’ve got a special place in my heart for this computer. Thanks for your generous videos!

Incredible work!

This is truly excellent work!

this is my very favorite kind of thing in retro computing hobby - fixing the mistakes of history with very cool hardware mods :-)

Now that's a nice little project! Do keep us abreast.

This looks very cool and promising keep up the good work thanks

Just amazing.

Take my moneeeeyyyyy!!! You are awesome.

This is such an interesting project, i enjoyed watching you tinker with code for older machines and being clever about the coding to make the sprites work. Keep up the good work !

Very interesting. Took me back to my 6502 days!!

That is just outstanding! I can’t wait to get my hands on one for my coco 1.

😲😲😲 Wow! Now I totally understand why we haven’t seen as many videos from you in the last few months. I’m amazed how quickly you’ve developed this hardware and learned 6809 assembly language. Looking forward to seeing this product available for purchase!

Impressed!

Very well done. Interested in this for my Coco's Respectfully Glen Glen's Retro Show

Many thanks, viewers, for answering the call to subscribe to my channel!

Cool!!! Growing up with a CoCo 2 (and just now getting my first CoCo 3 on Christmas Eve at almost 41 years old), I find this fascinating!

Amazing stuff, and the way you explain things is absolutely brilliant. Thank you!

Incredible!

I have a CoCo2 that I haven't really done much with because I always like my C64's more, but with this upgrade I will revisit it again. Your channel is fascinating and you deserve more subs.

Nice project. Don't forget about the hardware multipliers in the Cyclone FPGA, you can make your 16 bit sprite color 12 bit RGB plus 4 bit Alpha channel for 16 steps of variable translucency on each pixel. Also not that the Altera Cyclone IV 6K devices are identical to the 10K devices, just select the 10K version in Quartus and program away. Also, up to a full 720p HDMI with 48Khz audio can be fully implemented internally using just a 99cent HDMI cable driver amp. You also have room for a full blitter with scaling for both sprites and full screen graphics with a geometry accelerator for ellipses, triangles, boxes, filled and outlined.

thank you for share!

Very cool man!

Awesome! What an improvement to our baby....

I believe Manic Miner was made on this machine, then fed into the Speccys memory. Hence, the UK home computer game market became very popular

Woah!

I want. The question is 1] Is there a backorder for this hardware? 2] How do I get on the list? 3] Approximate price? Awesome job on the demo. Thanks. This looks really awesome.

I was in the middle of replying to a viewer's comment, and I somehow clicked something that made it disappear. I'm sorry about that! It was the one saying "this looks like a cleaner solution than Coco VGA" and "what graphics mode are you using these days, is it Pmode 4 or are there other modes now?" Answer: Exactly right, the Pacman clone is in Pmode4 which is the black and white mode with optional artifacting. I have the artifacting on, which would usually be the bright blue and redorange colors, but I have uploaded a new palette into CocoDV just before the game draw the maze. It replaces both artifact colors with a darker blue. That way, there aren't bits and pieces of the maze that come out in different colors, it's all blue.

Keep up the good work. Amazing.

Hey!... Merry Christmas!!!

Next step - 3d acceleration 😁

Excellent work. I don't know how fully fleshed out you intend to make your Pac-Man clone, but... Don't forget how Pac-Mac is suppose to "round the corners" to give the player a speed advantage.

holy cow!

Cool project. If the VDG recreation can run Simon's code, I’ll be quite impressed :)

Where can I found thins CoCoDV board? And where can I found assembly tips, hardware etc…? Thanks! Congrats!! Amazing!!

Amazing work as usual, AC! Currently I have 2 non-working CoCo2s, and the one closest to working may just have a non-working VDG. I notice your prototype still has the VDG socketed on top...does that mean this is not necessarily a replacement? Anyway, it's good that you reminded us to like and subscribe. I did, I don't want to miss anything you're doing!

This is amazing.. If this had been available back in the day (yes.. I know.. no FPGA back then!!) you could have charged more than the COCO itself and we'd all have bought one!! I do have one question though - If the VDG is reproduced in the FPGA, why is there an FPGA on your board as well? I assumed before watching the video (only from the picture) that you were only implementing the new functionality in the FPGA and then switching between the regular VDG output and the FPGA output on a pixel by pixel basis, but curious of the detail.

Dude you are the saviour of the coco. How does your FPGA board interact with the GIME chip in the Coco3? Will there be new graphics modes on a coco3?

Just need to keep this up and recreate the entire CoCo hardware and release the system as the CoCo 4 to compete with Commander x16.

It's a great hardware hack for an old computer. Destined to die just like every other expansion that requires new software to use, alas.

You can still do a pretty decent version of PacMan without any sprites, look at Jelly Monsters on the Vic-20.

This is awesome! More and more retro computers are getting these type of upgrades. I have the F18a for my TI-99/4a and a Sophia2 board for my Atari 800. Can't wait to get one of these for my CoCo's. Question: will this eventually work with the CoCo3? I have all three and could use my CoCo2 if needed but it would be nice to use my CoCo3.

Curious to know how it would work in a PAL system. Is it designed only for NTSC?

Is the video out still the standard RF output of the CoCo?

The Amstrad CPC desperately needs hardware sprites.

Forgive my n00bishness, but is this stuff not necessary for the CoCo 3?

Is there a way for new programs to check if the new hardware is installed, so that they can gracefully decline or fall back?

The old MC6847 can make my eyes bleed just by looking at the colors, just as it did 45 years ago. The only other one that is just as awful is good old CGA on old PCs.

simply amazing...