I had that book when I was a teenager.
07.03.2026 08:04
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I had that book when I was a teenager.
I look at #Amiga "Turrican" published in 1990 by Rainbow Arts. It uses a double buffer plus pristine buffer for the scroll, with minimal edge updates, and also look at some of the early boss sections.
youtu.be/W67vrdKYHMw
A short video showing the #C64 #MegaCart case, programming, and use. youtu.be/x988wTCP7Js
I was thinking of something more dynamic like ADPCM variants. But it's a question of what's feasible from a logic speed and complexity point of view.
I've recently been in #MegaWang hardware mode again. This is an Audio3 board that uses variable coded delta compression. It has 61% lossless compression compared to standard 8-bit PCM. It's going to replace the standard PCM Audio2 board. :)
I look at a few #Commodore64 games and show how they unlocked super secret hidden colours... Not really, it's quickly alternating complementary colours with CRT display effects.
youtu.be/eUD5XPWPer4
I look at #Amiga game "Leander", published in 1991 by Psygnosis. Interesting use of hardware sprites for parallax mountains, and player with pixel accurate collision to the game objects. youtu.be/gQYSRjGkhBg
I look at #Commodore64 "Mayhem in Monsterland" published in 1993 by Apex. I look at the HSP/VSP/DMA delay scroll, FLD scroll, a pixel scroll without hardware, and hidden/disabled sprites during the game.
youtu.be/RfC0jgk57t8
I look at #Amiga "Cecconoid" published in 2024 by Thalamus. It uses a dual playfield mode, with CPU updating particles, the blitter modifies particle code, and hardware sprite multiplex with the copper.
youtu.be/7OVBSs_Rl60
I look at #Commodore64 "Battle Command" published in 1991 by Ocean. Really nice filled 3D, with double buffered bitmaps, and also a look into the game and render code.
youtu.be/S49jeYzWgB8
This brings back memories...
"The WAIT instruction causes the Copper to wait until the video beam counters are equal to (or greater than) the coordinates specified in the instruction. While waiting, the Copper is off the bus and not using memory cycles."
Thanks for the shout out.
I look at #Commodore64 demo "The Hat" by Fairlight and Genesis Project, specifically the end upscroller part that shows a "hires" scroll in all borders.
youtu.be/Vfnyczaf1Ao
Not yet, but it is on the list :)
Yeah Coppenheimer is awesome :)
I look at #Amiga "Shadow of the Beast" published in 1989 by Psygnosis, developed by Reflections. How it uses dual playfields, hardware sprites, blitter objects, and the screen scrolling.
This is a new series, let me know if you like this or not. :)
youtu.be/V1APacXhoJI
I look at #Commodore64 demo "The Hat" by Fairlight and Genesis Project, specifically the part with the "14 balloon sprites" in a row and its "hires" scrolling border message.
youtu.be/DyteWLEPKzE
I look at Commodore 64 "3D Construction kit" and "Driller", using the Freescape engine. The rendering uses a linear flipped buffer before converting to a VIC bitmap format.
youtu.be/aXMpQiw2kP0
Problem solving then becomes an exercise in spotting patterns and feeling the solution.
What do you think when you are planning to code, or are coding?
When you code stuff, what do you think?
I realised years ago when I am thinking about something to code (or electronics) then I visualise in my mind's eye the structure an large complex interconnected shapes, that move, have colours, and are attached to certain emotions.
Our #cats now have their own channel...
www.youtube.com/@CatsMimosaA...
I look at #Commodore64 "Beer Rescue" published in 2025 by TSA Society. Retro style game, with good use of hires and multicolour, level cheat and sprite collision, and a hidden (recovered) file.
youtu.be/ZJiEGwJKf7E
I have work to do, my #cat says no.
This is a sad day @killedbygoogle.com
Next #C64MegaCart PCB and case production run has started...
#C64MegaCart support is now in Vice version 3.1, the Win32 EXE and source changes are here: github.com/martinpiper/...
Warning, very technical: I look at Commodore 64 "Last Ninja 3" published in 1991 by System 3, the bitmap dissolve, and document the map data format. Lots of reverse engineering in here. Beware it is filled with code!
www.youtube.com/watch?v=TLGF...
Filters out <30ns transient low signals on the _PC line.
#Electronics fam, I'm looking for a replacement 3-colour LED driver with these specs... Any idea?