#Swapping Bytes…
To anyone with 68000 assembler experience: What is the quickest way to
swap the bytes in the low-order word of a register? For example, if D0
contains $xxyy, what is the quickest way to change it to $yyxx? Along the
same lines, what is the quickest way to convert D0=$wwxxyyzz to
D0=$zzyyxxww?