Ancestors

Written by movq on 2024-12-01 at 06:03

🧵 for #AdventOfCode with Java 1 on OS/2 Warp 4

[#]RetroComputing

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Toot

Written by movq on 2024-12-07 at 10:24

Ported day 6 and 7 from Java to C. The EXE files are 32 bit OS/2 executables. Daily reminder that I love Open Watcom v2 – such an immensely helpful tool for these retro shenanigans. 💚

The ports are pretty straightforward. Same data structures and algorithms. I re-used my AoC framework from last year.

Results (Pentium 133, OS/2 Warp 4, IBM Java 1.0.1):

FTR, these are the runtimes of the same Java programs when run on my i7-3770 from 2013 with OpenJDK 23:

day06/2 ... [00:00:00.117] Result: [1812]

day07/1 ... [00:00:00.008] Result: [28730327770375]

day07/2 ... [00:00:00.157] Result: [424977609625985]

I’ll leave it at that.

(cc @mms)

[#]AdventOfCode #RetroComputing

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