What are the logic micro-operations, Computer Engineering

Assignment Help:

Q. What are the Logic Micro-operations?

Logic operations are fundamentally binary operations that are performed on string of bits stored in the registers. For a logic micro-operation every bit of a register is treated as a variable.

A logic micro-operation:

R1 ← R1.R2 specifies AND operation to be performed on contents of R1 and R2 in addition store the results in R1. For illustration if R1 and R2 are 8 bits registers and:

R1 comprise 10010011 and

R2 comprise 01010101

    Then R1 will comprise 00010001 after AND operation.

Some of the common logic micro-operations are AND, OR, NOT or Complement, Exclusive OR, NOR and NAND. In many computers only four: AND, OR, XOR (exclusive OR) and complement micro-operations are implemented.

Let's now discuss how these four micro-operations can be employed in implementing some of significant applications of manipulation of bits of a word like changing some bit values or deleting a group of bits. We are presuming that resultof logic micro-operations go back to Register R1 and R2 comprises the second operand.

We will play a trick with manipulations we are performing. Let's select 1010 as 4 bit data for register R1 and 1100 data for register R2. Why? Since if you see bit combinations of R2 and R1 they represent the truth table entries (read from right to left and bottom to top)  00, 01, 10 and 11. So resultant of logical operation on them will signify which logic micro-operation is required to be performed for that data manipulation. The below table gives details on some of these operations:

R1                                                                    1          0          1          0

R2                                                                    1          1          0          0

2130_What are the Logic Micro-operations.png


Related Discussions:- What are the logic micro-operations

Calculate the blocking probability of three stage network, A three stage ne...

A three stage network is designed with the following parameters: M=N=512, p = q = 16 and α = 0.65. Calculate the blocking probability of the network, if s=16. Symbols carry th

Example of frames format with ethernet, Compute the number of Ethernet fram...

Compute the number of Ethernet frames formed for a data of 64 KB IP packet. Following figure demonstrates the format of the Ethernet frame. Here maximum data into a frame is 15

Explain the matlab mathematical function library?, This is a huge collectio...

This is a huge collection of computational algorithms ranging from elementary functions like sum, sine, cosine, and difficult arithmetic, to more sophisticated functions like matri

Explain about param super computer, Q. Explain about PARAM Super computer? ...

Q. Explain about PARAM Super computer? PARAM is a high-performance, industry standard and scalable computer. It has developed from concepts of distributes scalable computers ma

Define miss rate, Define miss rate? It is the number of misses' states ...

Define miss rate? It is the number of misses' states as a fraction of attempted accesses.

What is a good resolution, Q. What is a good resolution? In fact it rel...

Q. What is a good resolution? In fact it relies on your hardware. Hence it's the maximum your hardware can allow you.  But one odd-looking resolution that has become popular is

Operation research, how to implement a modified distribution method using c...

how to implement a modified distribution method using c/c++

What does a socket having of, The combination of an IP address and a port n...

The combination of an IP address and a port number is known as a socket.

Implementation of arithmetic circuits, Implementation of Arithmetic Circuit...

Implementation of Arithmetic Circuits for Arithmetic Micro-operation  An arithmetic circuit can be implemented by a number of full adder circuits or parallel adder circuits. F

Smallest and largest integer , A given microprocessor has words of 1 byte. ...

A given microprocessor has words of 1 byte.  What is the smallest and largest integer that can be characterized in the following representations?   a) unsigned b) sign- ma

Write Your Message!

Captcha
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!

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