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.

Systems Architecture

7th Edition

ISBN:9781305080195

Author:Stephen D. Burd

Publisher:Stephen D. Burd

Chapter4: Processor Technology And Architecture

Section: Chapter Questions

Problem 15VE: A(n) ________________ instruction always alters the instruction execution sequence. A(n)...

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