Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
We can also use the logical operators to numbers directly and perform simple bit manipulation . The operators are
& Bitwise AND | Bitwise OR ^ Bitwise exclusive or ~ Bitwise one's complement i.e. NOT << Left shift >> Right shift
Example A 8 bit number represents a coded function, bit 3-4 describes the operation to be performed on the number in bits 0- 2 and 5-7 the function i.e. 00 Add 01 Subtract 10 Divide 11 Multiply Write a Program to extract the number and operation
Answer We need to extract the bits 3-4, the answer is bit operators Assume number is in the variable A i.e. 11011011 Mask off the first number i.e. bit 0-2 num1 = a & 0x07; 11011011 and 00000111 00000011 Mask off the second number i.e. bit 5 -7 num2 = a & 0xe0; 11011011 and 11100000 11000000 We need to shift num2 down by 5 places i.e. num2 = num2 >>5; 00000110
This could be done in one instruction i.e. num2 = (a & 0xe0) >> 5; Mask off the operation bits i.e. bit 4-5 operation = (a & 0x18) >> 3; We can then use the switch statement to select each operation switch(operation) { case 0: total = num1+num2; break; case 1: total = num1-num2; break; case 2: total = num1/num2; break; case 3: total = num1*num2; break; } Hence the entire program is #include void main() { char prompt; /*Author : Mr James Mc Carren Company: Staffordshire University Date: 26th August 2012 Version 1.0 Function : To show bit manipulation Modifications: none*/ int num1,num2,operation,total,a; printf("Please enter in the number\n\r"); scanf("%x",&a); num1 = a & 0x07; num2 = (a & 0xe0) >> 5 ; operation = (a & 0x18) >> 3; switch(operation) { case 0: total = num1+num2; break; case 1: total = num1-num2; break; case 2: total = num1/num2; break; case 3: total = num1*num2; break; } printf("The total is %d\n\r",total); printf("Press and key to exit \n\r"); scanf("\n%c",&prompt); }
Define Programmable Logic array & Programmable Array Logic? Combinational ckt is implemented with ROM Do not care conditions become an address input. PLA is alike to ROM. PLA d
Broad Band ISDN handles data rate of about (A) 64 kbps (B) 100 mbps (C) 5.4 mbps (D) 2.048 mbps
Q. Show the Importance of RISC Processors? Reduced Instruction Set Computers recognize a comparatively limited number of instructions. One benefit of a reduced instruction set
Define Flowchart. A process of expressing an algorithm by a collection of linked geometric shapes containing explanations of the algorithm's steps.
The objective of this practical assignment is to use the POSIX environment to write a program that simulates the supply and demand between three processes: warehouse, factory and r
Draw a neat labelled diagram of the OSI reference model for computer networks showing all the layers and the communication subnet boundary. The computer network consists of all
What are the important tools of a three-tier client server? In a three-tier or multi-tier environment, there the client implements the presentation logic or the client. The bus
A certain amount of side tone is essential in telephone communication. Ans: It is true that a specific amount of side tone is necessary in telephone communication.
What is meant by context switch? Switching the CPU to another process requires saving the state of the old process and loading the saved state for the new process. This task i
Q. Write a program to perform multiplication of two numbers in specified radix. Check that entered numbers are in specified radix or not else error message should be displayed.
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!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd