See "SDOT (2-way, vectors)" in the exploration tools

SDOT (2-way, vectors): Signed integer dot product

SDOT Zda.S, Zn.H, Zm.H (SVE2.1 (SME2

128-bit SVE

For each pair of signed 16-bit integers from (1) and (2), compute the dot-product, then add the result to the corresponding 32-bit integer accumulator from (3), setting (4) to the total.

256-bit SVE

For each pair of signed 16-bit integers from (1) and (2), compute the dot-product, then add the result to the corresponding 32-bit integer accumulator from (3), setting (4) to the total.

512-bit SVE

For each pair of signed 16-bit integers from (1) and (2), compute the dot-product, then add the result to the corresponding 32-bit integer accumulator from (3), setting (4) to the total.

Larger sizes

1024-bit SVE

For each pair of signed 16-bit integers from (1) and (2), compute the dot-product, then add the result to the corresponding 32-bit integer accumulator from (3), setting (4) to the total.

2048-bit SVE

For each pair of signed 16-bit integers from (1) and (2), compute the dot-product, then add the result to the corresponding 32-bit integer accumulator from (3), setting (4) to the total.

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