}
pub fn blk4_to_blk8(blk4: usize) -> usize {
- const MAP: [usize; 16] = [ 0, 0, 1, 1, 0, 0, 1, 1, 2, 2, 3, 3, 2, 2, 3, 3 ];
- MAP[blk4 & 0xF]
+ /*const MAP: [usize; 16] = [ 0, 0, 1, 1, 0, 0, 1, 1, 2, 2, 3, 3, 2, 2, 3, 3 ];
+ MAP[blk4 & 0xF]*/
+ ((blk4 & 2) >> 1) | ((blk4 & 8) >> 2)
}
#[derive(Clone,Copy)]