Function __tile_dpbssd
#[target_feature(enable = "amx-int8")]
pub unsafe fn __tile_dpbssd(dst: *mut __tile1024i, a: __tile1024i, b: __tile1024i)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
signed 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.
The shape of the tile is specified in the struct of __tile1024i. The register of the tile is allocated by the compiler.