Processes p and q execute the instructions x = x + 1 and x = x + 2, respectively. Initially x = 0. After execution of the interleaved code, x = 1) p: load Rp, x add Rp, 1 store Rp,x answer: 2) p: load Rp,x add Rp, 1 ************** store Rp, x answer: 3) p: ************ load Rp, x add Rp, 1 store Rp, x q: load Rq, x add Rq, 2 store Rq, x q: load Rq, x add Rq, 2 store Rq, x q: load Rq, x add Rq, 2 store Rq, x

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
Processes p and q execute the instructions x = x + 1 and x = x + 2, respectively. Initially x = 0. After
execution of the interleaved code, x =
1)
p:
load Rp, x
add Rp, 1
store Rp, x
answer:
2)
p:
**************
load Rp, x
add Rp, 1
store Rp, x
answer:
**************
3)
p:
load Rp, x
add Rp, 1
store Rp, x
q:
load Rq, x
add Rq, 2
store Rq, x
q:
load Rq, x
add Rq, 2
store Rq, x
q:
load Rq, x
add Rq, 2
store Rq, x
Transcribed Image Text:Processes p and q execute the instructions x = x + 1 and x = x + 2, respectively. Initially x = 0. After execution of the interleaved code, x = 1) p: load Rp, x add Rp, 1 store Rp, x answer: 2) p: ************** load Rp, x add Rp, 1 store Rp, x answer: ************** 3) p: load Rp, x add Rp, 1 store Rp, x q: load Rq, x add Rq, 2 store Rq, x q: load Rq, x add Rq, 2 store Rq, x q: load Rq, x add Rq, 2 store Rq, x
2) explain the critical solution and the requirements for the cs problem.
Transcribed Image Text:2) explain the critical solution and the requirements for the cs problem.
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