F1CVT, F2CVT

Multi-vector floating-point convert from 8-bit floating-point to half-precision (in-order)

Convert each 8-bit floating-point element of the source vector to half-precision while downscaling the value, and place the results in the corresponding 16-bit elements of the destination vectors. F1CVT scales the values by 2^{-UInt(FPMR.LSCALE[3:0])}. F2CVT scales the values by 2^{-UInt(FPMR.LSCALE2[3:0])}. The 8-bit floating-point encoding format for F1CVT is selected by FPMR.F8S1. The 8-bit floating-point encoding format for F2CVT is selected by FPMR.F8S2.

This instruction is unpredicated.

It has encodings from 2 classes: F1CVT and F2CVT

F1CVT
(FEAT_FP8)

if !IsFeatureImplemented(FEAT_SME2) || !IsFeatureImplemented(FEAT_FP8) then UNDEFINED; constant integer n = UInt(Zn); constant integer d = UInt(Zd: '0'); constant boolean issrc2 = FALSE;

F2CVT
(FEAT_FP8)

if !IsFeatureImplemented(FEAT_SME2) || !IsFeatureImplemented(FEAT_FP8) then UNDEFINED; constant integer n = UInt(Zn); constant integer d = UInt(Zd: '0'); constant boolean issrc2 = TRUE;