Study the following handwritten (potentially buggy) code (you can assume "." refers to code that is not shown main: LDS R25, x PUSH R25, CALL subroutine1 ; This instruction is at location ex1296 POP RO, ; This subroutine is at location @XAB33 subroutine1: MOV R25, R8 CALL subroutine2 ; result MOV R24, R7 RET subroutine2: ; This subroutine is at location exAD54. NO code is missing from this subroutine ADD RS RS PUSH RS RET Assume the return address stored in the stack by the CALL instruction is 3 bytes. What is the value of the Program Counter after the RET instruction in Subroutine 2? (Write your answer in Decimal, write O if unknown)
Study the following handwritten (potentially buggy) code (you can assume "." refers to code that is not shown main: LDS R25, x PUSH R25, CALL subroutine1 ; This instruction is at location ex1296 POP RO, ; This subroutine is at location @XAB33 subroutine1: MOV R25, R8 CALL subroutine2 ; result MOV R24, R7 RET subroutine2: ; This subroutine is at location exAD54. NO code is missing from this subroutine ADD RS RS PUSH RS RET Assume the return address stored in the stack by the CALL instruction is 3 bytes. What is the value of the Program Counter after the RET instruction in Subroutine 2? (Write your answer in Decimal, write O if unknown)
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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Question
![Study the following handwritten (potentially buggy) code (you can assume "..." refers to code that is not shown
main:
...
LDS R25, x
PUSH R25,
CALL subroutine1 ; This instruction is at location ex1296
POP RO,
...
subroutine1:
; This subroutine is at location OXAB33
...
MOV R25, R8
CALL subroutine2
...
MOV R24, R7
; result
RET
subroutine2:
; This subroutine is at location @XAD54. No code is missing from this subroutine
ADD R8 R8
PUSH RS
RET
Assume the return address stored in the stack by the CALL instruction is 3 bytes.
What is the value of the Program Counter after the RET instruction in Subroutine 2? (Write your answer in Decimal, write 0 if unknown)](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fa6d236ec-626e-450d-aba0-e87a860b8701%2Fb6990531-9486-4770-9c84-f3c5027dad4c%2Fo6rtou_processed.png&w=3840&q=75)
Transcribed Image Text:Study the following handwritten (potentially buggy) code (you can assume "..." refers to code that is not shown
main:
...
LDS R25, x
PUSH R25,
CALL subroutine1 ; This instruction is at location ex1296
POP RO,
...
subroutine1:
; This subroutine is at location OXAB33
...
MOV R25, R8
CALL subroutine2
...
MOV R24, R7
; result
RET
subroutine2:
; This subroutine is at location @XAD54. No code is missing from this subroutine
ADD R8 R8
PUSH RS
RET
Assume the return address stored in the stack by the CALL instruction is 3 bytes.
What is the value of the Program Counter after the RET instruction in Subroutine 2? (Write your answer in Decimal, write 0 if unknown)
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