# multiplying of two 8 bit number

## Assembly Program for multiplying of two 8 bit number

Assembly Program for multiplying of two 8 bit number –

Number N1 ≤ FF

Number N2 ≤ FF

F*F = 225 = EF

FF*FF = FE 01

### Program –

 Program member location code instructions comment F 000 H 2100 F8 LXIH , F800H Point to member location F 003 H 46 mov B , M Read N1 into Reg B F 004 H 23 INX , H Point to next member location F 005 H 4E Mov C , M Read N2 into reg c F 006 H A7 XRAA (A) =00 F 007 H 57 Mov D , A (D) =00 F 008 H 37 STC , (Set carry) (cy) = 01 (set) F 009 H 3F CNC , Complement (cy) = 00 (reset) F 00A H 80 ADD B (A) = (A) + (B)
 F 00B H D2 , OF , FO JNC , DNT , ADD IF CY ≠ 01. then don’t increment (D) F 00E H 14 INR D IF CY =0  THEN (D) = (D) +1 F 00F H 00 DCRC (C) = (C) -1 F 010 H C2 , 08 , F0 INZ Loop if co ≠ 0 Co to ADD member F 013 H 23 H INX H Point to next location F 014 H 77 mov M , A store (A) into member F 015 H 23 INX H Point to next member F 016 H 72 mov M , D Store (D) into member F 017 H 76 HLT stop

What is the Op Amp ?

What is Flip flop ?

IC Operational Amplifier –

Multiplying of two 8 bit number

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