Question 4 a. Using a PIC18F8720 microcontroller, write an assembly program that adds the number stored at 0x15...0x18 with the number stored at Ox25...0x28 and leaves the sum at 0x40...0x43. b. The following programme was written in assembly using a PIC18F4550, analyse the programme by explaining the selected instructions in bold. #include org 0x00 start movf 0x20, W subwf 0x24, W daw movwf 0x30 movf 0x21 subwfb 0x25, W daw movwf 0x31 end c. Based on the programme in Question 4(b), identify the task of the programme.
Question 4 a. Using a PIC18F8720 microcontroller, write an assembly program that adds the number stored at 0x15...0x18 with the number stored at Ox25...0x28 and leaves the sum at 0x40...0x43. b. The following programme was written in assembly using a PIC18F4550, analyse the programme by explaining the selected instructions in bold. #include org 0x00 start movf 0x20, W subwf 0x24, W daw movwf 0x30 movf 0x21 subwfb 0x25, W daw movwf 0x31 end c. Based on the programme in Question 4(b), identify the task of the programme.
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
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Transcribed Image Text:Question 4
a. Using a PIC18F8720 microcontroller, write an assembly program that adds the
number stored at Ox15...0x18 with the number stored at Ox25...0x28 and leaves
the sum at 0x40...0x43.
b. The following programme was written in assembly using a PIC18F4550, analyse
the programme by explaining the selected instructions in bold.
#include <p18F4550.inc>
org 0x00
start
movf 0x20, W
subwf 0x24, W
daw
movwf 0x30
movf 0x21
subwfb 0x25, W
daw
movwf 0x31
end
c. Based on the programme in Question 4(b), identify the task of the programme.
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