Dad double add instruction , Electrical Engineering

DAD Double Add Instruction

The contents of register  RP are added  to the  contents  of HL register pair  and results of addition is stored  in HL register pair. RP  may be any  of the  register  pair BC, DE, HL, or SP. The instruction format is

DAD RP                       ( HL - HL- +RP )

Flags: If  result is larger than  16 bit the  CY flag  is set. No other flag are affected.

Posted Date: 4/4/2013 7:03:49 AM | Location : United States

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