Given the code sequence below, answer the questions that follow: ORG 200H Initia

Question

Given the code sequence below, answer the questions that follow:

ORG 200H
Initialize: MOV A,#26H
MOV R0,#-30
MOV R1,#10
LCALL Store
Here: SJMP Here
Store: MOV 30H, A
INC A
DJNZ R1, Store
RET

(a) Find the machine code for the following instructions:
DJNZ R1, Store
MOV 30H, A
MOV R0,#-30
LCALL Store

Show your work and give your answer in hexadecimal.
(b) How many bytes are needed for the program (size of memory occupied by the code)? Also, specify the range of memory addresses that will be occupied by the program.

(c) What will be the content of the stack immediately after executing instruction "INC A". Give all relevant stack addresses and their values

Explanation / Answer

ORG 200H
Initialize: MOV A,#26H
MOV R0,#-30
MOV R1,#10
LCALL Store
Here: SJMP Here
Store: MOV 30H, A
INC A
DJNZ R1, Store
RET

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