Runs on Intel i286 with 256KB or RAM :)

Any 6502 wonks among my followers?

I've got an intriguing one disassemblng this ROM and wonder if it was common on embedded stuff. This pattern appears quite a lot in disassembled code:

LDA $AAAA
LDA #$FF

I'm quite sure the second op overwrites whatever happened in the first op (which makes LDA $AAAA superfluous). Or is it some magic foo on the 6502 to (eg.) force a reset?

(CS lines has this reading from the EPROM in this case, and A12..A15 aren't connected either so it masks...)

#asm #6502

- Updated logo (to work with the 1px font gap) and icons
- did some golf coding and reduced the size of kernel to 928 bytes

Many, may hours later after successfuly hunted the bug I got some basics!!

Now time to play with custom glyph characters :>

That's already something!

Logo

I'm start thinking about writing my own (floppy) OS. Something more sophisticated that "run first block of code and die" that I have now for my boot-games. I did some investigation and turns out using Real mode it will be super easy and fun.

First the hardest part: the name :)

p.s. Perplexity is super good with explaining everything in my level of senior knowledge (describe it in your profile!)

Part 3 of my Assembly fun (with guest appearance of emacs' hex mode):

https://michal.sapka.pl/2025/commodore-64-assembly-part-3-mnemonics-opcodes-pseudos-control-commands-and-tables/

Is #RISCV any fun to write assembly language in? #asm #assemblylanguage #programming

Besides the 6502, what other processor is genuinely fun to hand write assembly on? #asm #assemblylanguage #programming

Ik zag een bedrag is Australische dollar, $A500, maar mijn brein las een hexadecimaal getal. #asm

Ah, this is fucking good....checkout, fellas ...if and only if, you are NOT distracted by shallowed popular stuff...

#linux #asm #assembly #programming #operatingsystem

https://github.com/0xAX/asm

How would you start toying with coding for #z80 without ANY knowlege about #asm? Emulator of #Speccy?

I found a very nice use-case for Copilot agent: make a map of code for high level view of the engine.

Now I can look at this and think about any optimizations or refactors. Remember, this is a pure assembly code base!

Full map => https://github.com/w84death/x86-assembly/blob/main/bios/game12/MAP.md

I can't see computer folks talking about "ASM" without thinking "Alternating Sign Matrices."

#ASM #AlgCombo

Tracks number indicator works! And gets red below 10.

How two modes works. Exploring map vs building tracks.

Binary is 5162 bytes.

Beginning of UI.