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!
Q. Explain about 4-bit adder-subtractor circuit?
Subtraction operation on binary numbers can be obtained by succession of addition operations only it implies that to achieve subtraction A-B we can find 2's complement of B. This can be computed by 1's complemented and then adding 1 to it. So a common circuit can carry out addition and subtraction operation. A 4-bit adder subtraction circuit is displayed in figure below that is formed by employing XOR gate with each full adder. XOR gate with output 0 is for inspecting overflow.
Figure: 4-bit adder-subtractor circuit
Control input 'x' controls operations it implies that if x =0 then circuit acts as an adder and if x =1 then circuit acts as a subtractor. The operation is summarized as below:
a. When x = 0, c = 0, output of all XOR gates would be same as corresponding input Bi where i = 0 to 3. So Ai and Bi are added by full adders providing Sum Si and carry Ci .
b. When x = 1 output of all XOR gates will be complement of input Bi where i =0 to 3 to that carry C0=1 is added. So circuit finds A plus 2's complement of B which is equal to A-B.
Define the translator which perform macro expansion is known as a Macro pre-processor is the translator which perform macro expansion
For the circuit demonstrated below, what is the Maximum Frequency of Operation? Are there any hold time violations for FF2? When yes, how do you modify the circuit to ignore them?
Enumerate the History of computers Basic information about technological development trends in computer in past and its projections in future. If you want to know about compute
Converter is an application that converts distance measurements among metric and U.S units.
find area uder the curve y=f(x) between x=a and x=b Posted Date: 9/1/2012 1:50:09 AM
Q. Salient features of direct addressing mode? A number of salient points about this technique are: This scheme offers a limited address space since if address field has
For F = A.B.C + B.C.D ‾ + A ‾.B.C, write the truth table to realize the function using NAND gates only ? Ans. Logic Function given as F = ABC + BC‾D + A‾BC, simplification o
Question (a) A 500 MHz Pentium III processor takes 2 ms to run a program with 200,000 instructions. A 300 MHz UltraSparc processor takes 1.8 ms to run the same program with 23
Like a normal read, your input should break on the new line character "\n" and also on the up and down arrow keys. You will process the input made by the user when he/she enters
A computer system that allows multiple users to run programs at similar time Multi tasking system
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