Electronic Circuits and Diagram-Electronics Projects and Design

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AIM: To write programs for

i. Addition

ii. Subtraction

iii. Multiplication

iv. Division

of two numbers in 89C51.

Addition

PROGRAM

MOV R0,#00

MOV DPTR,#4200

MOVX A,@DPTR

MOV B,A

INC DPTR

MOVX A,@DPTR

ADD A,B

JNC LABEL1

INC R0

LABEL1 : INC DPTR

MOVX @DPTR,A

MOV A,R0

INC DPTR

MOVX @DPTR,A

HERE : SJMP HERE

SAMPLE OUTPUT

ADDRESSES	DATA	INPUT/OUTPUT
4200	05	Input
4201	04	Input
4202	09	Output
4203	00	Output

Subtraction

PROGRAM

MOV R0,#00

MOV DPTR,#4200

MOVX A,@DPTR

MOV B,A

INC DPTR

MOVX A,@DPTR

SUBB A,B

JNC LABEL1

INC R0

LABEL1 INC DPTR

MOVX @DPTR,A

MOV A,R0

INC DPTR

MOVX @DPTR,A

HERE SJMP HERE

SAMPLE OUTPUT

ADDRESSES	DATA	INPUT/OUTPUT
4200	01	Input
4201	05	Input
4202	04	Output
4203	00	Output

Multiplication

PROGRAM

MOV R0,#00

MOV DPTR,#4200

MOVX A,@DPTR

MOV B,A

INC DPTR

MOVX A,@DPTR

MUL AB

INC DPTR

MOVX @DPTR,A

MOV A,B

INC DPTR

MOVX @DPTR,A

LABEL SJMP LABEL

SAMPLE OUTPUT

ADDRESSES	DATA	INPUT/OUTPUT
4200	01	Input
4201	0A	Input
4202	0A	Output
4203	00	Output

Division

PROGRAM

MOV R0,#00

MOV DPTR,#4200

MOVX A,@DPTR

MOV B,A

INC DPTR

MOVX A,@DPTR,A

DIV AB

INC DPTR

MOVX @DPTR,A

MOV A,B

INC DPTR

MOVX @DPTR,A

LABEL SJMP LABEL

SAMPLE OUTPUT

ADDRESSES	DATA	INPUT/OUTPUT
4200	01	Input
4201	0A	Input
4202	0A	Output
4203	00	Output

RESULT:

Programs for

i. Addition

ii. Subtraction

iii. Multiplication

iv. Division

of two numbers were prepared and the output was obtained.