WCOMP(9)

✨ WCOMP(9) — the window comparator, bestie edition ✨

okay so this is wcomp, a Window comparator from the HAL Component girlies 💖 it lives in section 9 of the manual and it is, no cap, one of the most useful little gremlins in your HAL toolbox.

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🌸 NAME 🌸

wcomp — Window comparator 🪟✨

🎀 SYNOPSIS 🎀

loadrt wcomp [count=N|names=name1[,name2...]]

🦋 FUNCTIONS 🦋

• wcomp.N — bestie this one requires a floating-point thread. Like, it will not run anywhere else, periodt. 💅

💖 PINS 💖

every instance you load gets its own little set of pins, all named wcomp.N. followed by one of these:

• wcomp.N.in — float in — the value being compared 👀 the main character, fr.
• wcomp.N.min — float in — the low boundary for the comparison, aka the bottom of the window 🫶
• wcomp.N.max — float in — the high boundary for the comparison, aka the top of the window 🌈
• wcomp.N.out — bit out — True if in is strictly between min and max ✨ (strictly! like, actually strictly, no freebies at the edges)
• wcomp.N.under — bit out — True if in is less than or equal to min 🍓
• wcomp.N.over — bit out — True if in is greater than or equal to max 🔥

so like, in falls into exactly one vibe: under, out, or over. pick a lane babe 😭

💀 NOTES 💀

if max <= min then the behavior is undefined. not "kinda weird", not "probably fine" — undefined. don't do it. this is the "we don't go there" of this manpage 💅

👑 AUTHOR 👑

Jeff Epler 💜 the legend himself.

🌟 LICENSE 🌟

GPL — open source, iconic, as it should be.

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and that's the whole thing bestie!! 🎀 this page came to you courtesy of LinuxCNC Documentation, dated 2026-03-17, and it's filed under WCOMP(9) in the HAL Component section. slay, go compare some windows 💖✨🦋