maddu_func(9)

💅 maddu_func(9) — like, the Kernel API Manual, but make it make sense 🎀

okay bestie, so this page lives in the Kernel API Manual and it's all about maddu_func — one tiny little helper that emulates a MADDU instruction. that's the whole vibe. let's get into it ✨

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🌸 NAME 🌸

maddu_func — emulate a MADDU instruction. that's it. that's the mission. no notes 💅

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✨ SYNOPSIS ✨

int maddu_func (struct pt_regs *regs , u32 ir );

literally copy that exactly, iykyk — those spaces are part of the look 🫶

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🦋 ARGUMENTS 🦋

• regs — the process register set. think of it as the main character's full outfit for the day 👑
• ir — the instruction. the actual thing we're out here emulating, no cap.

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💖 DESCRIPTION 💖

so what does it do?? it returns 0. that's it. because it always succeeds 😭 like, it literally cannot fail. main character energy fr fr — shows up, does the job, returns zero, leaves. iconic. ✨

ngl bestie, there is genuinely nothing else on this page. 0. success. periodt. 💀

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🔥 SEE ALSO 🔥

okay this is the part where the group chat gets long, because there's a whole squad of emulation besties 👯‍♀️ — and they all live in the kernel file ./arch/mips/kernel/mips-r2-to-r6-emul.c:

mipsr6_emul(9), movf_func(9), movt_func(9), jr_func(9), movz_func(9), movn_func(9), mfhi_func(9), mthi_func(9), mflo_func(9), mtlo_func(9), mult_func(9), multu_func(9), div_func(9), divu_func(9), dmult_func(9), dmultu_func(9), ddiv_func(9), ddivu_func(9), madd_func(9), msub_func(9), msubu_func(9), mul_func(9), clz_func(9), clo_func(9), dclz_func(9), dclo_func(9), mipsr2_decoder(9)

like... the whole entire roster. every single one. go read them all, bestie, they're all right there 🧚‍♀️

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and that's the page!! 💜 this one came out of ./arch/mips/kernel and it's dated October 2026 — so yeah, mark your calendar, mwah 💋 see u in the next manpage, love u bye 🎀🦋🌸