please expalin what is happen 1. Memory contents (in hexadecimal) are 0005, 0001, 0123 for addresses 000 to 002, then 1002,1801, 7800, F400 for addresses 40A through 40D. AC starts with value OF24, PC has thevalue 40A, and AR has the value 4F5. Starting with the FETCH, describe what happensuntil the next FETCH. Make sure to indicate any updated register values as they happen. TABLE 7-2 Symbolic Microprogram (Partial)LabelMicrooperationsCDBRADORG OADD:NOPICALLINDRCTREADJMPNEXTADDUJMPFETCHORG 4BRANCH:NOPSJMPOVERNOPNOPFETCHINDRCTUJMPOVER:ICALLARTPCUJMPFETCHORG 8NOPАCTDRSTORE:ICALLINDRCTUJMPNEXTWRITEJMPFETCHORG 12NOPREADEXCHANGE:ICALLINDRCTJMPNEXTACTDR, DRTACWRITEJMPNEXTUJMPFETCHORG 64FETCH:РСТARJMPJMPNEXTREAD, INCPCNEXTDRTARUМАРJMPRETINDRCT:READUNEXTDRTARU

Solution:- The instruction loads the value of 0001 which is stored at address 002, into AC.…

1. Memory contents (in hexadecimal) are 0005, 0001, 0123 for addresses 000 to 002, then 1002, 1801, 7800, F400 for addresses 40A through 40D. AC starts with value OF24, PC has the value 40A, and AR has the value 4F5. Starting with the FETCH, describe what happens until the next FETCH. Make sure to indicate any updated register values as they happen.

1. Memory contents (in hexadecimal) are 0005, 0001, 0123 for addresses 000 to 002, then 1002, 1801, 7800, F400 for addresses 40A through 40D. AC starts with value OF24, PC has the value 40A, and AR has the value 4F5. Starting with the FETCH, describe what happens until the next FETCH. Make sure to indicate any updated register values as they happen.

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

please expalin what is happen

1. Memory contents (in hexadecimal) are 0005, 0001, 0123 for addresses 000 to 002, then 1002,
1801, 7800, F400 for addresses 40A through 40D. AC starts with value OF24, PC has the
value 40A, and AR has the value 4F5. Starting with the FETCH, describe what happens
until the next FETCH. Make sure to indicate any updated register values as they happen.

TABLE 7-2 Symbolic Microprogram (Partial)
Label
Microoperations
CD
BR
AD
ORG O
ADD:
NOP
I
CALL
INDRCT
READ
JMP
NEXT
ADD
U
JMP
FETCH
ORG 4
BRANCH:
NOP
S
JMP
OVER
NOP
NOP
FETCH
INDRCT
U
JMP
OVER:
I
CALL
ARTPC
U
JMP
FETCH
ORG 8
NOP
АCTDR
STORE:
I
CALL
INDRCT
U
JMP
NEXT
WRITE
JMP
FETCH
ORG 12
NOP
READ
EXCHANGE:
I
CALL
INDRCT
JMP
NEXT
ACTDR, DRTAC
WRITE
JMP
NEXT
U
JMP
FETCH
ORG 64
FETCH:
РСТAR
JMP
JMP
NEXT
READ, INCPC
NEXT
DRTAR
U
МАР
JMP
RET
INDRCT:
READ
U
NEXT
DRTAR
U

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