(LDB 0203 Y) versus (LDB X Y)

[JONL at MIT-MC (Jon L White)]

    Date: 18 September 1980 13:54-EDT
    From: Alan Bawden <ALAN at MIT-MC>
    Subject: *LDB, *DBP
    In fact when X is a constant (LDB X Y) expands into (BOOLE 1 (LSH Y ...) ...)
    So where is the gain?  In fact I would argue that the right solution
You must have missed my comment about the case worth optimizing -- namely
one like (LDB 0203 Y) as opposed to (LDB X Y).  If you did examine the
former case, then I suggest you also expand the latter and compare the
differences.