SCALED_S32_SUMS(9)

💖 scaled_s32_sums — HAL component 💖

okay bestie, so this one is a HAL component — that's <pink>scaled_s32_sums</pink> for the tag, and it's basically a sum of four inputs, where every single input gets its own scale factor. yes, four. four inputs. four scales. it's giving ✨math class but make it slay✨.

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✨ SYNOPSIS ✨

loadrt scaled_s32_sums [count=N|names=name1[,name2...]]

that's the whole thing, bestie. that's the moment. 🫶

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🧚 FUNCTIONS 🧚

• scaled-s32-sums.N — this is the function, and heads up: it requires a floating-point thread. not optional, not a suggestion, it needs it. periodt. 💅

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👑 PINS 👑

okay so <lavender>N is the instance number, and every instance gets this exact little friend group of pins:

• scaled-s32-sums.N.in0 — s32 in — first input, the OG 🍓
• scaled-s32-sums.N.in1 — s32 in — second input 🍓
• scaled-s32-sums.N.in2 — s32 in — third input 🍓
• scaled-s32-sums.N.in3 — s32 in — fourth input 🍓
• scaled-s32-sums.N.scale0 — float in — default: 1.0 🌸
• scaled-s32-sums.N.scale1 — float in — default: 1.0 🌸
• scaled-s32-sums.N.scale2 — float in — default: 1.0 🌸
• scaled-s32-sums.N.scale3 — float in — default: 1.0 🌸
• scaled-s32-sums.N.out-s — s32 out — integer output 💜
• scaled-s32-sums.N.out-f — float out — float output 💜

and the way that these two outputs work is literally this:

out-s = out-f = (in0 * scale0) + (in1 * scale1) + (in2 * scale2)
        + (in3 * scale3)

no cap. both outputs get the same value of that expression, out-s just hands it to you as an integer and out-f as a float. mul by the scale, add all four, done, iconic. 🔥

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🌈 SEE ALSO 🌈

• sum2(9)
• weighted_sum(9)

go read those too, iykyk 👀

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💅 AUTHOR 💅

Chris S Morley — thank you for your service, king 👑

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🎀 LICENSE 🎀

GPL — free as in slay 🦋

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and that's the whole page bestie — written up by the LinuxCNC Documentation girlies, dated 2026-03-17, so you know it's fresh ✨ go forth and scale those sums 💖