VTech Alphabert s Magic Readport User Manual download pdf (Page 36)

Lab Manual of Microcontroller & Interfacing Page 36

acall delay

clr a

movc a,@a+dptr

jz exit

acall disp_data

inc dptr

sjmp disp_msg

exit: ret

delay:

mov R6,#0ffh

loop1: djnz R6,loop1

ret

msg: DB ‘ Your name ',0

END

:: WORKSHEET ::

Exercise:

A. Modify LCD program to display two lines: “WELCOME TO B.M.” on first line and

“GEC GANDHINAGAR” on the second line. Execute program in your hardware.

Memory

Location

HEX

code

Label Opcode Operands Comments

1 2 ... 31 32 33 34 35 36 37 38 39 40 41 ... 79 80

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VTech Alphabert s Magic Readport User Manual Page 36