func IterateBits(n uint) int {
	i := 0
	for n != 0 {
		// amd64/v1,amd64/v2:"BSFQ",-"CMOVEQ"
		// amd64/v3:"TZCNTQ"
		i += bits.TrailingZeros(n)
		n &= n - 1
	}
	return i
}

func IterateBits64(n uint64) int {
	i := 0
	for n != 0 {
		// amd64/v1,amd64/v2:"BSFQ",-"CMOVEQ"
		// amd64/v3:"TZCNTQ"
		i += bits.TrailingZeros64(n)
		n &= n - 1
	}
	return i
}

	MOVQ acc3, t3
	// Add in case the operand was > p256
	ADDQ $-1, acc0
	ADCQ p256const0<>(SB), acc1
	ADCQ $0, acc2
	ADCQ p256const1<>(SB), acc3
	ADCQ $0, mul0
	CMOVQNE t0, acc0
	CMOVQNE t1, acc1
	CMOVQNE t2, acc2
	CMOVQNE t3, acc3
	// If condition is 0, keep original value
	TESTQ DX, DX
	CMOVQEQ acc4, acc0
	CMOVQEQ acc5, acc1
	CMOVQEQ acc6, acc2
	CMOVQEQ acc7, acc3
	// Store result

	ABEQZ
	ABGEZ
	ABGT
	ABGTU
	ABGTZ
	ABLE
	ABLEU
	ABLEZ
	ABLTZ
	ABNEZ
	AFABSD
	AFABSS
	AFNEGD
	AFNEGS
	AFNED
	AFNES
	AMOV
	AMOVB
	AMOVBU
	AMOVF
	AMOVD
	AMOVH
	AMOVHU
	AMOVW
	AMOVWU
	ANEG
	ANEGW
	ANOT
	ASEQZ
	ASNEZ

	// End marker
	ALAST
)