But the resulting ISO:

- has no network

- can't switch configurations

- doesn't have a text editor

https://gist.github.com/siraben/a8fce9912891d85e1ec3cf74081b...

The weird thing about TI-BASIC is how seemingly innocent changes in the input can cause huge performance regressions e.g. https://siraben.github.io/ti84p-re/sub-tibasic-for-paren.htm...

  For(I,1,N
  If 0
  1
  End

  For(I,1,N)
  If 0
  1
  End

Regarding source build, I think reverse engineering it to the point where you can reconstruct the source is possibly legally problematic, so I don't plan to do this, but maybe for certain subsystems like MathPrint (equation display) which was especially fun to RE. I have a PR up for it and it will be live at

https://siraben.github.io/ti84p-re/mathprint

Broad takeaways:

- Ghidra MCP is not a silver bullet. Lots of opportunities for mis-decoding especially on older instruction sets (e.g. conflating code + data), which requires user input to flag data layout/structs.

- Agents still need a lot of user direction otherwise the RE production is just kind of a random walk. With Z80 it's decent at reading code but I expect that it has much worse performance than reading x86 or ARM for instance. The TI-84+ has a bunch of hardware quirks as well.

- GPT 5.5 is better than Opus 4.8 at RE. Opus 4.8 loves plausible-sounding RE'd logic without any checking. The gold standard is actually dynamically executing the binary and comparing the logic against the prose.

- Maintaining consistency in style and prose is a PITA across the wiki. Hard to reconcile prose <-> code. Can be somewhat mitigated by agent loops.

Was also in discussions with people in the TI calculator programming space who helped provide guidance as well. We previously did not have a catalogue of every subsystem in TI-OS yet alone most subroutines in the OS.

Comments URL: https://news.ycombinator.com/item?id=48448493

Points: 149

# Comments: 24

https://gist.github.com/siraben/cb0eb96b820a50e11218f0152f2e...

My friend group loves playing nonograms and competing against each other, but we always send each other screenshots of the solved game grid and time after the fact.

So from the start, I knew I wanted leaderboards, replays, and shareable links. I also added PWA support so it can be added to the home screen on mobile and an offline play mode.

No ads, analytics or nonsense, just nonograms.

Some other goodies as well such as YouTube-like scrubber and KDE-based visualization in replays.

https://github.com/siraben/nonograms/

Tech stack: React + TypeScript on Vite, hosted on Cloudflare Pages with D1 and Workers

Comments URL: https://news.ycombinator.com/item?id=47063918

Points: 5

# Comments: 2

[0] https://github.com/fathyb/carbonyl

Comments URL: https://news.ycombinator.com/item?id=45426007

Points: 2

# Comments: 0

[0] https://github.com/siraben/dotfiles/blob/84225d914acd226863e...

  λ> pretty (sumTo 10)
  c += 0
  n += 10
  while n >= 0 {
    c += n
    n -= 1
  }
  λ> runAssembler (sumTo 10)                      -- Program length: 31
  Right [847425747 % 2,13 % 3,19 % 13,11 % 3,11 % 29,31 % 11,41 % 31,23
  % 11,23 % 47,2279 % 23,59 % 301,59 % 41,67 % 413,329 % 67,61 % 59,73 %
  61,83 % 73,71 % 61,71 % 97,445 % 71,707 % 89,103 % 5353,103 % 83,109 %
  5459,5141 % 109,107 % 103,113 % 749,113 % 19,131 % 113,29 % 131,127 %
  113]
  λ> runAsm (sumTo 10)
  [(Prime 97,55),(Prime 107,1)]

candy lasers redux: https://tixy.land/?code=0.2%2Bsin%28i*t%2F64%29%2B.3*sin%288...