func SplitAfterSeq(s, sep []byte) iter.Seq[[]byte] {
	return splitSeq(s, sep, len(sep))
}

// FieldsSeq returns an iterator over subslices of s split around runs of
// whitespace characters, as defined by [unicode.IsSpace].
// The iterator yields the same subslices that would be returned by [Fields](s),
// but without constructing a new slice containing the subslices.
func FieldsSeq(s []byte) iter.Seq[[]byte] {

	XVMOVQ		(R4), X2.W8	// 82002032
	XVMOVQ		8(R4), X2.W8	// 82082032
	XVMOVQ		-20(R4), X2.W8	// 82ec2f32
	XVMOVQ		(R4), X3.V4	// 83001032
	XVMOVQ		24(R4), X3.V4	// 830c1032
	XVMOVQ		-24(R4), X3.V4	// 83f41732

	// VSEQ{B,H,W,V}, XVSEQ{B,H,W,V} instruction
	VSEQB		V1, V2, V3      // 43040070
	VSEQH		V1, V2, V3      // 43840070
	VSEQW		V1, V2, V3      // 43040170
	VSEQV		V1, V2, V3      // 43840170
	XVSEQB		X3, X2, X4      // 440c0074