multiplication. Initialize the semaphore with the initial value. Process 1: Process 2: tl =a+ b; 14 = t1*t2; 12 =c+ d; 13 = c/f;
multiplication. Initialize the semaphore with the initial value. Process 1: Process 2: tl =a+ b; 14 = t1*t2; 12 =c+ d; 13 = c/f;
C++ for Engineers and Scientists
4th Edition
ISBN:9781133187844
Author:Bronson, Gary J.
Publisher:Bronson, Gary J.
Chapter13: Structures
Section: Chapter Questions
Problem 5PP
Related questions
Question
![Two processes are concurrently evaluating the expression (a + b) (c + d) - (e/f). Insert wait(S) and signal(S) operations into the code to enforce correct execution. The semaphore S, must guarantee that the additions must be completed before being used in
the multiplication. Initialize the semaphore with the initial value.
Process 1:
tl = a + b;
Process 2:
t2 =c + d;
t4 = t1*t2;
t5 = t4 - t3;
t3 = e/f;
The positions of instructions are given as line numbers. Copy and paste wait(S) in the position where you would insert the wait operation. Copy and paste signal(S) in the position number where you would insert the signal operation. (Note: exact matching
needed, hence type correctly or copy and paste). Enter NA if nothing to insert (Do not leave it blank).
Process 1:
1.
P1-
2. t1 - a + b:
3.
P3-
4. t4 - t1*t2:
5.
P5-
6. t5 - t4 - t3;
7.
P7=
Process 2:
1.
P21-
2. 12 -c+ d;
3.
P23-
4. t3 - e/f;
5.
P25-](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fab5b3963-cec0-4b67-9eed-f655b22a1d2a%2F67b20c6b-b7da-4221-b1c2-6065815c1802%2Fatd7eza_processed.png&w=3840&q=75)
Transcribed Image Text:Two processes are concurrently evaluating the expression (a + b) (c + d) - (e/f). Insert wait(S) and signal(S) operations into the code to enforce correct execution. The semaphore S, must guarantee that the additions must be completed before being used in
the multiplication. Initialize the semaphore with the initial value.
Process 1:
tl = a + b;
Process 2:
t2 =c + d;
t4 = t1*t2;
t5 = t4 - t3;
t3 = e/f;
The positions of instructions are given as line numbers. Copy and paste wait(S) in the position where you would insert the wait operation. Copy and paste signal(S) in the position number where you would insert the signal operation. (Note: exact matching
needed, hence type correctly or copy and paste). Enter NA if nothing to insert (Do not leave it blank).
Process 1:
1.
P1-
2. t1 - a + b:
3.
P3-
4. t4 - t1*t2:
5.
P5-
6. t5 - t4 - t3;
7.
P7=
Process 2:
1.
P21-
2. 12 -c+ d;
3.
P23-
4. t3 - e/f;
5.
P25-
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