Who Is Vfmaddrnd231pd?

Automated excerpt

October 12, 2026vfmaddrnd231pd is a unique instruction from the FMA instruction set. Most instructions in that set have mnemonics like vfmadd231pd, but here rnd means something very specific. This instruction doesn’t look like a typo in the documentation, since the docs contain unique tables and pseudocode that isn’t similar to any other instruction.

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