SVE Instruction List by Dougall Johnson
See "SMLALB (vectors)" in the exploration tools

SMLALB (vectors): Signed multiply-add long to accumulator (bottom)

SMLALB Zda.H, Zn.B, Zm.B (SVE2 (SME
svint16_t svmlalb[_s16](svint16_t op1, svint8_t op2, svint8_t op3)

128-bit SVE

For each even signed 8-bit integer calculate (1) * (2), and add that to the 16-bit integer from (3), then set (4) to the result.

256-bit SVE

For each even signed 8-bit integer calculate (1) * (2), and add that to the 16-bit integer from (3), then set (4) to the result.

512-bit SVE

For each even signed 8-bit integer calculate (1) * (2), and add that to the 16-bit integer from (3), then set (4) to the result.

Larger sizes

1024-bit SVE

For each even signed 8-bit integer calculate (1) * (2), and add that to the 16-bit integer from (3), then set (4) to the result.

2048-bit SVE

For each even signed 8-bit integer calculate (1) * (2), and add that to the 16-bit integer from (3), then set (4) to the result.

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