Woohoo

I added extra parallax and squishy effects to the new Mega Multicolour Mode for the #C64Ultimate. This is to show there is ample time for lots of extra stuff with this screen mode. youtu.be/dQv_epsBdgk

This is a demo of a new Mega Multicolour Mode for the #C64Ultimate. This allows any multicolour pixels anywhere on the screen, no colour restrictions, with another screen (hires/multicolour/bitmap) in front, and with sprites active. I think this has not been seen before. youtu.be/lnbQw3t1qFA

I have something cooking...

I run a few tests with my #C64Ultimate at 64MHz, software video decompression and easily opening the side borders without any of the usual cycle accurate stable IRQ/timer stuff that is usually needed. youtu.be/2DjhBKUyuoo

I look at #Commodore64 "Gee Bee Air Rally" released by Activision in 1987. This game surprised me by using multicolour bitmap software sprites as well as hardware sprites to allow rendering large sprites in the same horizontal band. youtu.be/my8D9vJ-xxk

When you forget to add a wait for vsync in your video playback code...

This shows an optimised 3D test on my new #Commodore64Ultimate machine, running at 64MHz. Full source code and the PRG file are linked in the video description. The optimisation is run from RAM, not cartridge ROM. It's a lot faster than the stock C64 now. youtu.be/_TFLTdHAD4Q

Today I've been running a lot of old code and projects on the #Commodore64Ultimate in 64MHz mode. Games like Footy with sampled audio and full screen scrolling is really possible. All of the other stuff that uses sprite multiplexing and full colour scrolling is instantly smooth.

Hunting in my parts box for a couple of 74LS32 through hole.

A quick 3D test on my new #Commodore64Ultimate machine, running at 64MHz. I press fire to toggle between rendering one model and several models. Full source code and the CRT file are linked in the video description. youtu.be/O4vXalu10O8

I look at #Commodore64 "Sabre Wulf Remastered" a preview released by Genesis Project. Code by Raistlin, Music by psych858o, Graphics by JonEgg, Loader by Sparta. This has a rather lovely double buffered bitmap scroll with colour screens, overlay sprites, and disk data streaming. youtu.be/5-wF9kHISRg

What is the #Commodore64 game with the most complex disk copy protection or format?

Would you like to disassemble #Commodore64 Elite's line drawing routine, and then use it in a new programme? Of course you would! :) youtu.be/3KYJbaRaG-E

I look at #Commodore64 Profile Guided Disassembly, a technique to allow code and data to be automatically disassembled, squeezed, and relocated. This is really useful for compressing and relocating SID music files. Warning: *very technical* youtu.be/0youNHO0Mbg

My AI #Commodore64 Companion has been updated to use more information and the latest models. chatgpt.com/g/g-67f3e3ed...

The last HST 125 youtu.be/gXBRjULgnEU

Testing the new backplane with improved power delivery and signal shielding. Testing the original arcade attract sequence screens with my Commodore 64 After Burner game. This uses two characters layers and the tiles layer, all merged together with the layer combiner. youtu.be/Is3BTDuxIo0

#MegaWang2000TurboEdition board stack has grown. 3 chars/tiles, mode7, 2 super scaled sprites, audio, and APU (copper). The new backplane provides much more reliable power and signal quality. Currently at 88 watts. :)

I look at #Commodore64 "Impossible Mission". I find the random number generator and add the ability to set the start seed, so that players can play a consistent map. Useful for speed runs and competitions. youtu.be/nfx7_CBmABE

The question you should all be asking is why were these Epstein photo faces redacted? Usually it's to protect victims, for example, underage girls who were trafficked... So your next question should be, why is Trump seen hugging these redacted faces?

I've added the original arcade attract sequence screens to my #Commodore64 "After Burner" game. This uses two characters layers and the tiles layer, all merged together with the layer combiner hardware. It bothered me that these nice screens were missing. :) youtu.be/iuUgLKqy5AI

#Commodore64 Ask Me Anything 2025. It's near the end of 2025 and having hit the 8192 subscribers milestone (8kilobytes ... kilosubs...) it's time for an Ask Me Anything. Who am I? Why am I? What am I? Who knows... :) youtu.be/-HwRnLWvFUU

Trying to get up, ow my brain. Trying to think of code, ow my brain. Trying to use the keyboard, ow my brain.

Woo www.youtube.com/@MartinPiper...

Slowly starting to catch up. Recently @martinpiper.bsky.social has kindly linked up the unreleased #Commodore64 intro to Cyberdyne Warrior to the game, along with loading screen with a disk and tape version for you to check out. See page for Martin's video! www.gamesthatwerent.com/gtw64/cyberd...

I was wondering. Is there a #Commodore #Amiga emulator that includes a nice visual memory access debug view along with chipset debug views that allows sprites and bit planes to be viewed separately while something is running? I couldn't find one.

No C64 video this weekend. Travelling in the cold.

My brain hurts. It is too early in the morning to translate from French to Mandarin.

The state of manufacturing in Singapore. I contacted five plastic injection molding companies with a request for quote to manufacture using an existing design. Not one of them replied back. Sigh.

I look at #Commodore64 "Retrograde", published in 1989 by Thalamus, developed by John and Steve Rowlands. Raster split extra colours, for screen and sprites, parallax scrolling, and dynamic characters. youtu.be/PRCNXI5KyuM

Q. How many connectors do you want on your #MegaWang backplane? A. Yes

I look at Commodore 64 "Cyberdyne Warrior" unreleased intro and some loading screens. These were not used in the final game but were mentioned on the excellent Games That Weren't site. @gamesthatwerent.com I then link all of these assets into a disk image and source code. youtu.be/4DUa1QbBCcc

I look at #Commodore64 "Cyberdyne Warrior", released in 1989, created by the Rowlands brothers. Many colours, wipes and fades, distinctive sound style, multiplexed sprites with expansion, and sprite background priority effects. youtu.be/bMcvsEdY2xk

This video shows the new Character layers working with #MegaWang2000TurboEdition and #Commodore64. Three layer parallax with optional dithering. Using easier to find surface mount components instead of the old through hole design. youtu.be/yieNq5IupHI

The same functionality, a scrolling character screen layer. But one using through hole, the other using surface mount.

I look at #Commodore64 "The Sentinel", published in 1986 by Firebird, created by Geoffrey Crammond (of course). The game uses an interesting "not bitmap" mode to render, with multiple charset based scrolling, and what looks like a lot of maths and ray casting. youtu.be/iZ1sNaTLD5Q

This video shows the Audio2 layer working with the #Commodore64 and additional #MegaWang2000TurboEdition hardware. This has 2MB memory per channel with stereo output up to 78KHz 8-bit sample rate with volume control. youtu.be/16IcTzvIYJE

I look at #Commodore64 "Dropzone", published in 1984 by US gold. Nice dynamic charset for the title logo, hardware and software sprites, several charsets for the landscape, sprites and chars for the score, and memory patterns for game objects. youtu.be/AGMKtKwDK18

This video shows the bitmap RGB 565 layer working with the #Commodore64 and additional hardware. I'm working on finalising the manufacturing design for the remaining boards. Thank you @pcbwayofficial.bsky.social @queenelaine.bsky.social for working boards. youtu.be/JYrwhIhjeHQ

Some sprites... Thinking...

I look at #Commodore64 "Stunt Car Racer". Published in 1989 by MicroStyle, coded by Geoffrey Crammond. Using double buffered bitmaps, nice use of sprites, bitmap clear and engine draw, with a delta colour update, 3D Line draw, and a tweak to render more track! youtu.be/YbeIsthQvkU

I look at Commodore 64 "Hard Drivin'" published in 1989 by Domark. Using double buffered bitmaps, road draw fake 3D, fake 3D object draw, "rotation" is pre-calculated, and the "rotation" memory used. youtu.be/bFYq-VBuI_M

Just wanted to share this super cool tech showpiece from @rovertronic.com over on Twitter Demonstrating a cool new technique in Super Mario 64 to make portals just like you'd see in, well "Portal" It looks kinda surreal but it's a super impressive visual effect! #romhacks #romhack #retro #gaming

I look at #Commodore64 "Super Mario Bros 64" by ZeroPaige in 2019. How the screen scroll uses VSP, the Mario sprite split render, some dynamic sprites, and find some original (mostly) NES code. youtu.be/JgwT0Da8R3M

My #cat is blocking my keyboard, What on earth shall I do? Her fur is covering my mouse pad, The pointer no longer moves. My cat meows at the screen, The meeting can only hear her. My cat is being my cat, I think she thinks she owns me.

I take a short trip down memory lane for #Commodore64 "Green Beret", published in 1986 by Imagine. The old memories of the Ocean/Imagine loader, and the sprite limit handling when the special weapon is used. youtu.be/o4xl8-w9zys