SVE Instruction List by Dougall Johnson
See "FCVT" in the exploration tools

FCVT: Floating-point convert precision (predicated)

FCVT Zd.D, Pg/M, Zn.H (SVE (SME
svfloat64_t svcvt_f64[_f16]_m(svfloat64_t inactive, svbool_t pg, svfloat16_t op)

128-bit SVE

Set each 64-bit lane of (2) by taking the lowest overlapping 16-bit float from (1) and converting it to a 64-bit float.

256-bit SVE

Set each 64-bit lane of (2) by taking the lowest overlapping 16-bit float from (1) and converting it to a 64-bit float.

512-bit SVE

Set each 64-bit lane of (2) by taking the lowest overlapping 16-bit float from (1) and converting it to a 64-bit float.

Larger sizes

1024-bit SVE

Set each 64-bit lane of (2) by taking the lowest overlapping 16-bit float from (1) and converting it to a 64-bit float.

2048-bit SVE

Set each 64-bit lane of (2) by taking the lowest overlapping 16-bit float from (1) and converting it to a 64-bit float.

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Inspired by and based on the x86/x64 SIMD Instruction List by Daytime.