SVE Instruction List by Dougall Johnson
# UDOT (2-way, indexed): Unsigned integer indexed dot product

UDOT Zda.S, Zn.H, Zm.H[imm] (SVE2.1 (SME2

## 128-bit SVE

For each pair of unsigned 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. Within each 128-bit segment, the pair of values used from (1) is specified by `imm`

.

## 256-bit SVE

For each pair of unsigned 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. Within each 128-bit segment, the pair of values used from (1) is specified by `imm`

.

## 512-bit SVE

For each pair of unsigned 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. Within each 128-bit segment, the pair of values used from (1) is specified by `imm`

.

## Larger sizes

## 1024-bit SVE

For each pair of unsigned 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. Within each 128-bit segment, the pair of values used from (1) is specified by `imm`

.

## 2048-bit SVE

For each pair of unsigned 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. Within each 128-bit segment, the pair of values used from (1) is specified by `imm`

.

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