This is a collection of Intel®’ IA32® Software Developer's Manuals (URL of the day) and AMD' AMD64 Architecture Programmer's Manual together with the related specifications, application notes, white papers, and change logs. The collection aims to keep all available revisions. It was originally created by Michal Necasek, see OS/2 Museum.

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SETF8, SETF16

Evaluation of 8-bit or 16-bit flag values

This instruction sets the PSTATE.NZV flags based on the value in the specified general-purpose register. SETF8 treats the value as an 8-bit value. SETF16 treats the value as a 16-bit value.

The PSTATE.C flag is not affected by these instructions.

Integer
(FEAT_FlagM)

Decode for all variants of this encoding

if !IsFeatureImplemented(FEAT_FlagM) then EndOfDecode(Decode_UNDEF); end; let size : integer{} = 8 << UInt(sz); let n : integer = UInt(Rn);