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

SMAX (immediate): Signed maximum with immediate (unpredicated)

SMAX Zdn.D, Zdn.D, #imm (SVE (SME
svint64_t svmax[_n_s64]_x(svbool_t pg, svint64_t op1, int64_t op2)

128-bit SVE

For each signed 64-bit integer compare (1) and (2) and set (3) to the maximum.

256-bit SVE

For each signed 64-bit integer compare (1) and (2) and set (3) to the maximum.

512-bit SVE

For each signed 64-bit integer compare (1) and (2) and set (3) to the maximum.

Larger sizes

1024-bit SVE

For each signed 64-bit integer compare (1) and (2) and set (3) to the maximum.

2048-bit SVE

For each signed 64-bit integer compare (1) and (2) and set (3) to the maximum.

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