Nibble-swap Pasm2 code

evanh

Has anyone got a smaller solution than this for performing a nibble swap?: $12345678 -> $21436587

        splitb  val
        splitw  val
        movbyts val, #%01_00_11_10
        mergew  val
        mergeb  val

Wuerfel_21

split/merge instructions are circular (5x mergew will bring you back to the same value you started with. splitw moves in the opposite direction. splitb/mergeb are just 2x splitw/mergew), so perhaps

        mergeb  val
        movbyts val, #%%1032
        splitb  val

Not tested, may be nonsense Yep, works.

evanh

Damn! That's cool! Thanks.