importantSYS.SOURCE: purplesyringa's blog• 2026-10-12T21:12:43Z

Investigation into the vfmaddrnd231pd Instruction in Intel's FMA Set

#x86 architecture #intel fma #cpu instructions

The article examines the vfmaddrnd231pd instruction from Intel's FMA set, which appears in documentation but is not recognized by compilers or hardware. The author suggests it may have been removed from CPUs but not updated in manuals, causing confusion.

Read original article

*** END OF TRANSMISSION ***

> REPROGRAMMING OF 80-YEAR-OLD BLOOD CELLS YIELDS STEM CELLS WITH YOUTHFUL MOLECULAR PROFILE > RJ MITTE, ACTOR KNOWN FOR 'BREAKING BAD,' PASSES AWAY AT 34 > AI AS A TOOL REQUIRING HUMAN SKILL AND OVERSIGHT > PHREAK.ING: A WEB-BASED VOIP AND COMMUNICATION PLATFORM > INTEL D270 DISCRETE GPU AI ACCELERATOR WITH 480 GB LPDDR5X MEMORY > INVESTIGATION INTO THE VFMADDRND231PD INSTRUCTION IN INTEL'S FMA SET > BROWSER-BASED MULTIPLAYER BRICK-BUILDING GAME WITH SHARED WORLD FEATURES > CREATING A RETRO DEMOSCENE INTRO FOR THE ZX SPECTRUM USING Z80 ASSEMBLY > ENABLING RESUMABLE LARGE FILE DOWNLOADS IN FIREFOX > CODEX CLI DEFAULT BEHAVIOR: PERSISTENT SELF-UPDATING DAEMON RAISES CONCERNS> REPROGRAMMING OF 80-YEAR-OLD BLOOD CELLS YIELDS STEM CELLS WITH YOUTHFUL MOLECULAR PROFILE > RJ MITTE, ACTOR KNOWN FOR 'BREAKING BAD,' PASSES AWAY AT 34 > AI AS A TOOL REQUIRING HUMAN SKILL AND OVERSIGHT > PHREAK.ING: A WEB-BASED VOIP AND COMMUNICATION PLATFORM > INTEL D270 DISCRETE GPU AI ACCELERATOR WITH 480 GB LPDDR5X MEMORY > INVESTIGATION INTO THE VFMADDRND231PD INSTRUCTION IN INTEL'S FMA SET > BROWSER-BASED MULTIPLAYER BRICK-BUILDING GAME WITH SHARED WORLD FEATURES > CREATING A RETRO DEMOSCENE INTRO FOR THE ZX SPECTRUM USING Z80 ASSEMBLY > ENABLING RESUMABLE LARGE FILE DOWNLOADS IN FIREFOX > CODEX CLI DEFAULT BEHAVIOR: PERSISTENT SELF-UPDATING DAEMON RAISES CONCERNS