-- | MOV dest src
mov         :: Reg -> Reg -> CPU ()
mov M  r    = tick 7  >> regMem HL <~ use (reg r)
mov         :: Reg -> Reg -> CPU ()
mov M  r    = tick 7  >> regMem HL <~ use (reg r)
mov M  r    = tick 7  >> regMem HL <~ use (reg r)