Define opcode and operands, Computer Engineering

Assignment Help:

Q. Define Opcode and Operands?

The most common fields which are found in instruction formats are:

Opcode: (What operation to perform?)

An operation code field called opcode that specifies operation to be performed.

Operands: (Where are the operands?)

An address field of operand on that data processing is to be performed.
An operand can reside in the memory or a processor register or can be combined within the operand field of instruction as an immediate constant. Thus a mode field is requiredwhich specifies the way the operand or its address is to be determined.

Related Discussions:- Define opcode and operands

Device drivers in assembly, Device drivers are special programs installed b...

Device drivers are special programs installed by config.sys file to control installable devices. So personal computers can be expanded at some future time by installation of new d

Convert the octal number 7401 to binary, Convert the octal number 7401 to B...

Convert the octal number 7401 to Binary. Ans. Octal number 7401 to Binary conversion: Every octal digit represents 3 binary digits. To change an octal number to binary number,

What is memory address register, Q. What is Memory Address Register? Me...

Q. What is Memory Address Register? Memory Address Register (MAR): It specifies address of memory location from that data or instruction is to be accessed (read operation) or t

Vector-scalar instructions- vector processing, Vector-Scalar Instructions :...

Vector-Scalar Instructions : In this type, when the combination of vector and scalar are fetched and saved in vector register. These instructions are denoted with the many function

Explain the use of functions in parallel programming, Q. Explain the Use of...

Q. Explain the Use of functions in parallel programming? include "pvm3.h" main() { int cc, tid, msgtag; char buf[100]; printf("%x\n", pvm_mytid());

Describe the hardwired control method, Describe the Hardwired control metho...

Describe the Hardwired control method for generating the control signals Hard-wired control can be explained as sequential logic circuit that generates particular sequences of

Display frames (horizontal and vertical lines) in lists, How can you displa...

How can you display frames (horizontal and vertical lines) in lists? You can show tabular lists with horizontal and vertical lines (FRAMES) using the ULINE command and the syst

What is wmfc, What is WMFC? WMFC if the control signals that causes the...

What is WMFC? WMFC if the control signals that causes the processor's control circuitry to wait for the arrival of the MFC signal.

Construct the finite automata, Give the regular expression of the set of al...

Give the regular expression of the set of all even strings over the alphabet {a, b} along with at least one of the two substrings aa or bb. As well construct the finite automata wh

Illustrate the system architecture, Question: a) Explain why pervasive...

Question: a) Explain why pervasive computing can be termed as a "technology that disappears". b) List and describe four main components of a MOTE used in Wireless Sensor N

Write Your Message!

Name

Email id

Message

Verfication Code

User Account

All Pages