(i) Find the errors in the program and make necessary corrections. Do not insert any additional line in the program. (ii) How many bytes does 'TABLE' occupy? (iii) What are the values loaded in the register R2 and R4? (iv) Determine the values of the flags N, Z, C and V. (v) Modify the program such that the numbers in 'TABLE' are represented in 'word' length.
(i) Find the errors in the program and make necessary corrections. Do not insert any additional line in the program. (ii) How many bytes does 'TABLE' occupy? (iii) What are the values loaded in the register R2 and R4? (iv) Determine the values of the flags N, Z, C and V. (v) Modify the program such that the numbers in 'TABLE' are represented in 'word' length.
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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Question
Transcribed Image Text:(b) Figure 1, shows an ARM assembly program, which finds the most positive and
negative values in a list of 16-bit (half-word) value in data memory (TABLE).
The values are in two's complement representations. By examining the program,
answer the following questions:
(i) Find the errors in the program and make necessary corrections. Do not
insert any additional line in the program.
(ii) How many bytes does 'TABLE' occupy?
(iii) What are the values loaded in the register R2 and R4?
(iv) Determine the values of the flags N, Z, C and V.
(v) Modify the program such that the numbers in 'TABLE' are represented in
'word' length.
![LOOP
DONE
TABLE
AREA EXAM CODE READONLY
ENTRY
ADR
MOV
LDRSH
MOV
LDRSH
CMP
MOVGT
CMP
MOVLT
SUB
BLE
B
RO, TABLE
R1,
R2,
R4,
R3,
R2, R3
R2, R3
R4, R3
R4, R3
R1, R1, #1
Figure 1.
#14
[RO], #2
R2
[RO], #2
LOOP
DONE
DCW 7,-9, 2, 10, -22
DCW -1, 77, 88, -95, 33
DCW 120, 45, -88, 77, 1
END](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F6859c3c4-d989-4a0e-b3c9-91b175bd1faa%2F4ded7edf-e5cb-4f2a-9f35-2ee08c5a8f82%2Fo1auumx_processed.png&w=3840&q=75)
Transcribed Image Text:LOOP
DONE
TABLE
AREA EXAM CODE READONLY
ENTRY
ADR
MOV
LDRSH
MOV
LDRSH
CMP
MOVGT
CMP
MOVLT
SUB
BLE
B
RO, TABLE
R1,
R2,
R4,
R3,
R2, R3
R2, R3
R4, R3
R4, R3
R1, R1, #1
Figure 1.
#14
[RO], #2
R2
[RO], #2
LOOP
DONE
DCW 7,-9, 2, 10, -22
DCW -1, 77, 88, -95, 33
DCW 120, 45, -88, 77, 1
END
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VIEWStep 3: Size of 'TABLE':
VIEWStep 4: (iii) Values in registers R2 and R4:
VIEWStep 5: Values of flags N, Z, C, and V after the execution of the program
VIEWStep 6: Modify the program such that the numbers in 'TABLE' are represented in 'word' length.
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