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## _tile_dpbsud

# Function _tile_dpbsud

Source

    pub unsafe fn _tile_dpbsud(const DST: i32, const A: i32, const B: i32)

🔬This is a nightly-only experimental API. (`x86_amx_intrinsics` #126622)
Available on x86-64 and target feature `amx-int8` only.
Expand description

Compute dot-product of bytes in tiles with a source/destination accumulator. Multiply groups of 4 adjacent pairs of signed 8-bit integers in a with corresponding unsigned 8-bit integers in b, producing 4 intermediate 32-bit results. Sum these 4 results with the corresponding 32-bit integer in dst, and store the 32-bit result back to tile dst.

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