VTech Alphabert s Magic Readport User Manual download pdf (Page 5)

BM Dept., Govt. Engg. College, Gandhinagar Page 5

EXPERIMENT NO. 1

AIM: Write a program to ….

• Add two 8 bit numbers stored in register R6 and R7.

• Multiply two 8 bit numbers stored in register R6 and R7.

• To find 1’s complement of number stored in register R0.

• To perform AND operation between content of register R0 and R1.

Assembly language programs:

Program 1: To add two 8 bit numbers stored in register R6 and R7.

ORG 00h

MOV R6,#55h ; Transfer data 55h to register R6

MOV R7,#44h ; Transfer data 44h to register R7

MOV A,R6 ; Transfer content of register R6 to accumulator

ADD R7 ; Add content of R7 with accumulator and store result in A

END ; End of program

Program 2: To multiply two 8 bit numbers stored in register R6 and R7.

ORG 00h

MOV R6,#55h ; Transfer data 55h to register R6

MOV R7,#44h ; Transfer data 44h to register R7

MOV A,R6 ; Transfer content of register R6 to accumulator

MOV B, R7 ; Transfer content of R7 in register B

MUL AB ; Multiply accumulator and register B, Store result in both

END ; End of program

Program 3: To find 1’s complement of number stored in register R0. Store result in

ORG 00h

MOV A,R0 ; Transfer number stored in R0 to Accumulator

CPL A ; Complement the content of accumulator

MOV R1,A ; Store result in register R1

END ; End of program

Program 4: To perform AND operation between content of register R0 and R1. Store

result in register R3.

ORG 00h

MOV A,R0 ; Transfer number stored in R0 to Accumulator

ANL A,R1 ; AND operation between A and register R1

MOV R3,A ; Store result in register R3

END ; End of program

Note: Check execution of program 3 and 4 by loading different values in registers.

1 2 3 4 5 6 7 8 9 10 ... 79 80

No comments

VTech Alphabert s Magic Readport User Manual Page 5