Two byte instructions , Electrical Engineering

Assignment Help:

Two byte  Instructions

In these  instruction the first byte  specifies  the operations code  and the  second byte  specifies the operand. To identify  two byte  instructions one must  observe followings  things.

The instruction have 8 bit  data as their  operand  and have I n their  mnemonics for example MVI ADI, SUI  etc are two  byte  instructions ( but  not LXI as it  has 16 bit data as its  operand).

The  instructions  have 8 bit   port address  as their  operand e g IN and OUT  instructions.

Since  each memory  locations may  store  only byte  hence  two byte instructions  require two memory  locations to store  them  in memory.

Suppose  instruction MVI, A, 8 bit  data is to be stored  at memory  location  2000 H.  It will  be stored  as shown  below.

 

 


Related Discussions:- Two byte instructions

Design a signal generator, Aims Exploring the analog output capabili...

Aims Exploring the analog output capabilities of the PIC trainer Write PIC assembly code to implement a simple multi-function signal generator Equipment PIC Trainer

Explain signal description of 8085, Explain signal description of 8085 ...

Explain signal description of 8085 a) Address bus b) Control and status signal c)  Address latch enable d)  S1,S0 status signals e)  Read ,write signal

Explain the working of depletion mosfet, Q. Explain the working of depletio...

Q. Explain the working of depletion MOSFET ? The gate voltage can control the resistance of the n-channel but as the gate is insulated from the channel, we can apply either a p

What is permeability, What is Permeability? Permeability: This is defin...

What is Permeability? Permeability: This is defined as the ability of the material to conduct flux. This is defined as the ratio of magnetic flux 'B' in a medium to the magneti

How many types of buses are, There are three types of buses. Address bu...

There are three types of buses. Address bus: This is used to carry the Address to the memory to get either Instruction or Data. Data bus : This is used to take the Data from

Feedback amplifier, Draw and explain the circuit of feedback amplifier

Draw and explain the circuit of feedback amplifier

Amplifiers, what is the use of capacitors in amplifiers

what is the use of capacitors in amplifiers

What do you understand by progressive control, Q. What do you understand by...

Q. What do you understand by progressive control? Progressive Control: Step by step system is an example of progressive control. The connection is set up in stages, in response

Explain about darlington amplifier, Q Explain about 'Darlington Amplifier'?...

Q Explain about 'Darlington Amplifier'? DARLINGTON AMPLIFIER : A CC stage followed by another CC stage has an input resistance of about (b + 1) 2 times the emitter resistance

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