collapseos/blk/223

( ixy+- HL rd )
: LDIXYr,
    ( dd/fd has already been spit )
    LDrr,           ( ixy+- )
    A,
;

( rd ixy+- HL )
: LDrIXY,
    ROT             ( ixy+- HL rd )
    SWAP            ( ixy+- rd HL )
    LDIXYr,
;