See "SQDMULH (indexed)" in the exploration tools

SQDMULH (indexed): Signed saturating doubling multiply high (indexed)

SQDMULH Zd.H, Zn.H, Zm.H[imm] (SVE2 (SME

svint16_t svqdmulh_lane[_s16](svint16_t op1, svint16_t op2, uint64_t imm_index)

128-bit SVE

For each signed 16-bit integer set (3) to ( (1) * (2) ) >> 15, with signed saturation to 0x7FFF. Within each 128-bit segment, the value used from (1) is specified by imm.

256-bit SVE

For each signed 16-bit integer set (3) to ( (1) * (2) ) >> 15, with signed saturation to 0x7FFF. Within each 128-bit segment, the value used from (1) is specified by imm.

512-bit SVE

For each signed 16-bit integer set (3) to ( (1) * (2) ) >> 15, with signed saturation to 0x7FFF. Within each 128-bit segment, the value used from (1) is specified by imm.

Larger sizes

1024-bit SVE

For each signed 16-bit integer set (3) to ( (1) * (2) ) >> 15, with signed saturation to 0x7FFF. Within each 128-bit segment, the value used from (1) is specified by imm.

2048-bit SVE

For each signed 16-bit integer set (3) to ( (1) * (2) ) >> 15, with signed saturation to 0x7FFF. Within each 128-bit segment, the value used from (1) is specified by imm.

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