NMATCH

Detect no matching elements, setting the condition flags

This instruction compares each active 8-bit or 16-bit character in the first source vector with all of the characters in the corresponding 128-bit segment of the second source vector. Where the first source element detects no matching characters in the second segment it places true in the corresponding element of the destination predicate, otherwise false. Inactive elements in the destination predicate register are set to zero. Sets the First (N), None (Z), !Last (C) condition flags based on the predicate result, and the V flag to zero.

This instruction is illegal when executed in Streaming SVE mode, unless FEAT_SME_FA64 is implemented and enabled.

if !IsFeatureImplemented(FEAT_SVE2) then UNDEFINED; if size IN {'1x'} then UNDEFINED; constant integer esize = 8 << UInt(size); constant integer g = UInt(Pg); constant integer d = UInt(Pd); constant integer n = UInt(Zn); constant integer m = UInt(Zm);