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

Develop a two-dimensional addressing system, Q. Suppose a ROM holds a total...

Q. Suppose a ROM holds a total of 8192 bits. (a) How many bits long would the individual addresses have to be? (b) If the bits are organized into 8-bit memory words or bytes,

Drift current and diffusion current, Drift Current and Diffusion Current : ...

Drift Current and Diffusion Current : There are two mechanisms in which electrons and holes move through a semiconductor. One of these is termed as drift and other is diffusi

Evaluate complex power in power system, Q. Evaluate complex power in power ...

Q. Evaluate complex power in power system? The complex power ¯S in a single-phase systemis the complex sum of the real (P) and reactive (Q) power, expressed as follows:

Coherent psk system, To have the same value of P e , show that E b /N 0 in...

To have the same value of P e , show that E b /N 0 in a coherent-ASK system has to be twice that in a coherent PSK system.

Find the minimum load resistor, Q. Consider the non inverting amplifier. Le...

Q. Consider the non inverting amplifier. Let R i = 1k and R f = 2k. Let the op amp be ideal, except that its output cannot exceed ±12 V at a current of ±10 mA. (a) Find the

Difference between object oriented and object based language, Object based ...

Object based languages don't support Inheritance where as object oriented supports. C# is a object oriented language due to it supports inheritance and asp.net is not a language it

Determine the fault current and the bus voltages, The one line diagram of a...

The one line diagram of a simple three-bus power system is shown in the figure below.  Each generator is represented by an emf behind the transient reactance.  All impedances are e

Unconditional jump - jump instruction , Unconditional Jump JMP ( Uncon...

Unconditional Jump JMP ( Unconditional Jump ) Instruction: This  instruction is used to transfer  the execution to the  specified  memory  address unconditionally ( does not c

Frequency stability of quartz crystals, Q. Frequency stability of quartz cr...

Q. Frequency stability of quartz crystals ? The amount of frequency deviation from the ambient temperature frequency over the operating temperature range. This deviation is ass

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