User Account

All Pages

Write lock and unlock in assembly language

Assignment Help Assembly Language
Reference no: EM13869487

To make it possible to implement semaphores on a computer with multiple CPUs that share a common memory, computer architects often provide a Test and Set Lock in- struction. TSL X tests the location X. If the contents are zero, they are set to 1 in a sin- gle, indivisible memory cycle, and the next instruction is skipped. If it is nonzero, the TSL acts like a no-op. Using TSL it is possible to write procedures lock and unlock with the following properties. lock(x) checks to see if x is locked. If not, it locks x and re- turns control. If x is already locked, it just waits until it becomes unlocked, then it locks x and returns control. unlock releases an existing lock. If all processes lock the semaphore table before using it, only one process at a time can fiddle with the variables and pointers, thus preventing races. Write lock and unlock in assembly language. (Make any reasonable assumptions you need.)

Reference no: EM13869487

Questions Cloud

Gunpowder corp.''s board of directors approved a : On November 6, 2009, Gunpowder Corp.'s board of directors approved a share option plan for key executives. On January 2, 2010, a specific number of share options were granted.
Will the idea work if three or more processes use semaphore : In this way, programs that feel it is immoral to block can first inspect the semaphore to see if it is safe to do a down. Will this idea work if three or more processes use the semaphore? If two processes use the semaphore?
Identify which boundary is best described by each family : Identify which boundary is best described by each family in the scenario above. Identify which boundary inadequacies are present in each family, if applicable. Explain how each boundary and boundary inadequacy manifests itself
How is a substance use disorder diagnosed : What category of substances do cocaine and amphetamine fall under, and what are the implications of this category on the body? Be sure to give the classification, DEA schedule, and physical effects. How is a substance use disorder diagnosed
Write lock and unlock in assembly language : If all processes lock the semaphore table before using it, only one process at a time can fiddle with the variables and pointers, thus preventing races. Write lock and unlock in assembly language.
What management organization and technology issues : What management, organization, and technology issues were addressed in building Wine.com's Web site?
Which are the two biggest factors in marketing : Which are the two biggest factors in marketing? When an organization competes by providing unique products with features that customers value, perceive as different, and are willing to pay a premium price for, it is using a strategy of
Describe carefully what changes are made in directory system : Suppose that the UNIX system call unlink(¢¢/usr/ast/bin/game3¢¢) were executed in the context. Describe carefully what changes are made in the directory system.
Assignment on brookdale senior living solutions : Brookdale Senior Living Solutions

Reviews

Write a Review

Assembly Language Questions & Answers

  Create a assembly language subroutine

Create a assembly language subroutine MULSUM that takes an array named A containing n bytes of positive numbers, and fills two arrays, array B containing n words and array C containing n long words

  Write a function in linux assembly

Write a function in Linux assembly

  Analog measurements

Prepare an assembly program for the correctly measures the wind direction

  Design a simple digital clock

Design a simple digital clock

  Write an assembly program

Prepare an Assembly program that reads in a number of cents.

  Write an assembly language program

Write an assembly language program for encrypting alphabates of a string

  Greatest common divisor of integers-masm assembly language

Must be done in MASM assembly language: Greatest common divisor of two integers is largest integer which will evenly divide both integers. GCD algorithm involves integer division in a loop.

  Write assembly program-find right admission price to movie

Write the Assembly program to find correct admission price to movie. Price of admission to a movie is $7 for kids (under 12) and $9 for adults.

  Create simple 8-bit alu using add-subtract-shift functions

Create a simple 8-bit ALU. Requirements:The eight functions that you will implement are: add, subtract, and, or, shift left logical, less than, shift right logical.

  Write assembly program print binary representation-integers

Write the assembly program called hw6_ex1, stored in file hw6_ex1.asm. This program must prompt user to enter signed 32-bit integer. Program must print out binary representation of the integer.

  Allot op-codes and add microcode to microprogram

Allot op-codes and add microcode to microprogram of Mic-1 to implement following instructions which are then included with IJVM instruction set.

  Write mips assembly program to read two non-negative numbers

Write MIPS assembly program to repeatedly read two non-negative integers and print integer product and quotient without using multiplication and division instructions.

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

Submit Assignment

Academics

Major Subjects

Majors

Get In Touch

whatsapp: +1-415-670-9521

Phone: +1-415-670-9521

Email: [email protected]

TERMS & POLICIES

HELP & SUPPORT

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd