See "SMULLT (indexed)" in the exploration tools

SMULLT (indexed): Signed multiply long (top, indexed)

SMULLT Zd.D, Zn.S, Zm.S[imm] (SVE2 (SME

svint64_t svmullt_lane[_s64](svint32_t op1, svint32_t op2, uint64_t imm_index)

128-bit SVE

Within each 128-bit segment, for each odd signed 32-bit integer from (2), set the double-width (3) to (2) multiplied by the element from (1) specified by imm.

256-bit SVE

Within each 128-bit segment, for each odd signed 32-bit integer from (2), set the double-width (3) to (2) multiplied by the element from (1) specified by imm.

512-bit SVE

Within each 128-bit segment, for each odd signed 32-bit integer from (2), set the double-width (3) to (2) multiplied by the element from (1) specified by imm.

Larger sizes

1024-bit SVE

Within each 128-bit segment, for each odd signed 32-bit integer from (2), set the double-width (3) to (2) multiplied by the element from (1) specified by imm.

2048-bit SVE

Within each 128-bit segment, for each odd signed 32-bit integer from (2), set the double-width (3) to (2) multiplied by the element from (1) specified by imm.

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