vbdot2+ ( a b accumulator -- result )

Vocabulary

math.vectors

Inputs

a	a sequence
b	a sequence
accumulator	a sequence

Outputs

result

a sequence

Word description

Adds adjacent pairs of bfloat-8 products to float-4 accumulators. Products, pair sums and accumulator sums round to odd in binary32; subnormals flush to signed zero and NaNs canonicalize, matching baseline Arm BFDotAdd.

Definition

IN: math.vectors

GENERIC: vbdot2+ ( a b accumulator -- result )

Methods

USING: kernel math.vectors math.vectors.simd
math.vectors.simd.extensions
math.vectors.simd.extensions.private ;

M: simd-128 vbdot2+ 3dup check-bfloat-accumulate (vbdot2+) ;