Get two nibbles from a byte in Ruby

Question

What's the easiest way to get two nibbles (as Integers) from a byte in Ruby?

What have you tried? http://en.wikipedia.org/wiki/Nibble#Extracting_a_nibble_from_a_byte — the Tin Man, Oct 09 '12 at 14:00

score 4 · Accepted Answer · answered Oct 09 '12 at 14:01

4

If the "byte" is a number between 0 and 255:

n1, n2 = (byte & 0xf0) >> 4, byte & 0x0f

answered Oct 09 '12 at 14:01

Jeremy Roman

1 Answers1