Answer to Question #240463 in Electrical Engineering for abhishek

Question #240463
Write an AVR assembly program for the ATmega328PB that uses a loop to sum the decimal numbers 1, 2, 3, ..., 19, 20, noting where the result is stored as well as its value in hexadecimal and decimal.
1
Expert's answer
2021-09-24T02:14:24-0400
 ORG OOOOh
 LJMP main
 ORG 0x40h
main:
 MOV R0,#14h ; N=20 value to get Sum from 1 to 20
 MOV R1,#01h
loop:
 ADD A,R1
 INC R1
 DJNZ R0, loop
 MOV R4,A ; Final Sum is stored in register R4
end

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