SVE Instruction List by Dougall Johnson
See "FSUB (immediate)" in the exploration tools

FSUB (immediate): Floating-point subtract immediate (predicated)

FSUB Zdn.S, Pg/M, Zdn.S, #0.5 (SVE (SME
svfloat32_t svsub[_n_f32]_m(svbool_t pg, svfloat32_t op1, float32_t op2)

128-bit SVE

For each 32-bit float set (3) to (2) − 0.5.

256-bit SVE

For each 32-bit float set (3) to (2) − 0.5.

512-bit SVE

For each 32-bit float set (3) to (2) − 0.5.
Larger sizes

1024-bit SVE

For each 32-bit float set (3) to (2) − 0.5.

2048-bit SVE

For each 32-bit float set (3) to (2) − 0.5.
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Inspired by and based on the x86/x64 SIMD Instruction List by Daytime.