#Mode5
After all these years I still haven't figured out the logic behind the colour bits encoding in the 2bpp and 4bpp modes. I may very well have missed a specific MODE5 trick though
October 24, 2026 at 7:57 PM
Juggling act !

I've never really messed about with shifting on the fly yet -apart from scrolling Mode5 text. Thinking of the MoonRaider text method, but I guess you've got a refined version !

Intrigued to hear how you get on with the different approaches ! 😎
Cartoon Dog Juggling on Ball
ALT: Cartoon Dog Juggling on Ball
static.klipy.com
October 20, 2026 at 9:45 PM
Ah, cool stuff !

I shuddered slightly remembering the shift tables in Beeb Lunar Jetman..... but that is Mode4 (and about 2K of tables IIRC !), but then thought - Mode5 - shouldn't be too bad !

😎
October 18, 2026 at 9:47 PM
Cheers! 128x96 wide pixels (MODE5), which is equivalent to 256x96 square pixels. I could alternate between 'endless runner' and 'freely move' levels/stages 🤔
October 4, 2026 at 11:01 AM
Looking great! I forgot to ask: does it need SWRAM? Is the top part MODE5? Really looking forward to playing this instead of the current flickerfest
September 1, 2026 at 9:27 PM
Thanks 😊
Yes, I haven't really been explaining as I was just messing with stuff....

1 bank of SWRAM (at the moment ?) - just implementing some of the Master background tiles.

The top is Mode5, can just fit a helicopter below that... It'll be masked and background stored, so should look ok !...
1/2
September 1, 2026 at 9:58 PM
The MODE4/MODE1 mix combined with extra space/speed of SWRAM is great so far! (same with Citadel 2 in MODE5/MODE2; must use this more often)
July 8, 2026 at 10:02 PM
I'm going for MODE1 (4 colours, high res) first. If that fails, I will go for MODE4 (monochrome). MODE5 has wide pixels so I would have to redo all the graphics
June 13, 2026 at 10:05 PM
Yeah, it's annoying. I have settled on 3 separate writes now:
lda #32: sta &fe05
lda #12: sta &fe05
lda bank: sta &fe05
which seems to work on everything I can test it on. There is a little cosmetic issue left to fix: palette glitching in the space between MODE5 and MODE2 *sigh*
June 7, 2026 at 11:28 AM
The top part of the screen is MODE5 and the bottom part is MODE2. I am thinking about a smarter redraw scheme for the enemies
May 22, 2026 at 6:33 AM
Cheers! Yeah, MODE5 going on, looking good but taking a good chunk of RAM though. I briefly considered double MODE2 screen buffers. I also don't think I will be able to eliminate all sprite flicker
May 21, 2026 at 9:09 PM
You sound pretty coherent 😂 At the moment there may be enough free memory to have a MODE5 top part 🤔
May 16, 2026 at 9:19 PM
Looking great already! This would be a perfect fit for a chunky MODE5 custom 128x128 screen on the Beeb. I bet I could even make it work on an Electron 😎
March 21, 2026 at 7:45 PM
Prototyping in pico8 is a good idea. The MODE5 screen is 160x256 wide pixels, but I'm using the middle 128x256 wide pixels (for easy addressing) and then doubling them so it works out exactly to 128x128 chunky pixels if I want to
March 18, 2026 at 9:50 PM
MODE5 pixels are already wide pixels. By making them double height they become square again =)
March 18, 2026 at 5:35 PM
Chunky pixels are what I call double height MODE5 pixels. Chunky pixels are square. They look cool (👋 #pico8), they are faster to draw (saving precious cycles) and take up 50% less space (saving precious bytes). One drawback is that it's more challenging (for me!) to draw goodlooking sprites 😅
March 18, 2026 at 5:13 PM
Creepy Crawly WIP on the Acorn Electron. Single screen buffer stress test. Decided to use MODE5 instead of MODE1 because I may need a second screen buffer later. This can easily run at 50fps but that just makes the sprite animations look weird
February 21, 2026 at 2:54 PM
Double chunky in MODE5 for the win! 😎 I've ripped out the double buffering because sprite flicker isn't really annoying with these little particles (I think) and 50fps is only feasible with a relatively small amount of grains
December 8, 2025 at 10:20 PM
Pew-pew pew ! 😎 Marvellous !
I've been working with double video buffer stuff too much, and blindly assumed this was what was going on !! 😅
Anyway, nice Mode5/2 split (I'm assuming ?) ! 👍
April 23, 2025 at 4:17 PM
And live for everyone: Cute and Clunky! - Hero Hobby Tiny Magnus
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Cute and Clunky! - Hero Hobby Tiny Magnus
Appreciating the “form” in Transformers.Today’s piece: Hero Hobby Tiny Magnus0:00 Intro0:53 Weapon “Storage”1:38 Alt Mode5:09 Alt Mode Comparisons6:45 Transf...
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August 5, 2024 at 9:02 PM
And live for everyone: Quite the Hot Mess - Beast Wars Tripredacus
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Quite the Hot Mess - Beast Wars Tripredacus
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June 10, 2024 at 5:44 PM
And live for everyone: Huh... - Studio Series WFC Sideswipe
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Huh... - Studio Series WFC Sideswipe
Appreciating the “form” in Transformers.Today’s piece: Studio Series "Gamer Edition" 07 Sideswipe0:00 Intro1:32 Robot Mode5:39 Robot Mode Head6:58 Articulati...
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April 19, 2024 at 5:56 PM