dmult_func(9)

📦 version 7.3.1, in nixpkgs unstable

okay so bestie, we're looking at dmult_func(9) — the kernel API page that's literally about emulating a DMULT instruction, and it's giving "tiny but iconic" energy. 💅✨

💖 NAME 💖

dmult_func — emulate a DMULT instruction. No cap, that's the whole name-and-purpose combo. 🎀

🎀 SYNOPSIS 🎀

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

🦋 ARGUMENTS 🦋

  • regs — process register set. That's the register situation for the process. 🫶
  • ir — instruction. The instruction in question, periodt. 👑

🌸 DESCRIPTION 🌸

So here's the tea: this one returns 0 on success, or SIGILL for 32-bit kernels. That's it — short, sweet, and absolutely not doing extra. 😭

32-bit kernel besties: SIGILL is the return value to watch for. 🚨

💜 SEE ALSO 💜

Kernel file: ./arch/mips/kernel/mips-r2-to-r6-emul.c

The whole related-page squad, in the original order:

mwah 💋 okay that's the whole page — sourced from ./arch/mips/kernel, dated October 2026, and yes it's dmult_func(9). stay slaying, bestie 🫶✨

📦 where this page comes from