assembler directives

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
20. Identify the assembler directives in the below program.
.ORIG x3000
START LEA R8, PROMPT
PUTS
GETC
ADD R3,RO, x0
ADD R3, R3, -16
ADD R3,R3,#-16
ADD R3,R3,#-16
ADD R4,R3,#-6
BRp ERROR
LEA RO, DAYS
ADD R3, R3, x0
BRZ DISPLAY
LOOP
ADD RO, RO, #10
ADD R3, R3, #-1
BR LOOP
DISPLAY PUTS
LEA RO, LF
PUTS
BR START
ERROR HALT
PROMPT
DAYS
.STRINGZ "PLEASE ENTER NUMBER:
.STRINGZ "Sunday
.STRINGZ "Monday
.STRINGZ "Tuesday
.STRINGZ "Mednesday"
.STRINGZ "Thursday
.STRINGZ "Friday
STRINGZ "Saturday
.STRINGZ "INUALID INPUT"
.FILL X000A
..
LF
.END
Transcribed Image Text:20. Identify the assembler directives in the below program. .ORIG x3000 START LEA R8, PROMPT PUTS GETC ADD R3,RO, x0 ADD R3, R3, -16 ADD R3,R3,#-16 ADD R3,R3,#-16 ADD R4,R3,#-6 BRp ERROR LEA RO, DAYS ADD R3, R3, x0 BRZ DISPLAY LOOP ADD RO, RO, #10 ADD R3, R3, #-1 BR LOOP DISPLAY PUTS LEA RO, LF PUTS BR START ERROR HALT PROMPT DAYS .STRINGZ "PLEASE ENTER NUMBER: .STRINGZ "Sunday .STRINGZ "Monday .STRINGZ "Tuesday .STRINGZ "Mednesday" .STRINGZ "Thursday .STRINGZ "Friday STRINGZ "Saturday .STRINGZ "INUALID INPUT" .FILL X000A .. LF .END
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