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

FCPY: Copy 8-bit floating-point immediate to vector elements (predicated)

FCPY Zd.D, Pg/M, #const (SVE (SME
svfloat64_t svdup[_n]_f64_m(svfloat64_t inactive, svbool_t pg, float64_t op)
svfloat64_t svdup[_n]_f64_x(svbool_t pg, float64_t op)

128-bit SVE

Set all 64-bit lanes of (2) to the immediate value from (1). The value from (1) must be representable as an 8-bit floating-point immediate.

256-bit SVE

Set all 64-bit lanes of (2) to the immediate value from (1). The value from (1) must be representable as an 8-bit floating-point immediate.

512-bit SVE

Set all 64-bit lanes of (2) to the immediate value from (1). The value from (1) must be representable as an 8-bit floating-point immediate.

Larger sizes

1024-bit SVE

Set all 64-bit lanes of (2) to the immediate value from (1). The value from (1) must be representable as an 8-bit floating-point immediate.

2048-bit SVE

Set all 64-bit lanes of (2) to the immediate value from (1). The value from (1) must be representable as an 8-bit floating-point immediate.

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