Compare with register, Electrical Engineering

Assignment Help:

Compare with Register

The contents  of the register  are compared with  the contents  of the accumulator  here  register  may be  any one  of the  A, B, C, D E, H, or L  registers. The instruction format is

CMPR                          (A-R)

Actually the comparison is done  by subtracting  the contents  of the register from the  contents  of the  accumulator. The contents of the  register  and  the accumulator do not  change the  flags  are modified similar  to subtraction.

Flags : All flags  are modified  as they  would  change  in subtract  operation. But the  contents of both the  operand do  not change.

Although  all flags  are modified  but the  conclusion can be made only by CY and Z flag as shown  below

If A> R : CY  and Z flags  are reset.

IF A= R: Z Flag is set and  CY flag is reset.

IF A < R : CY  is set  and Z  flag s reset.

 


Related Discussions:- Compare with register

Dc machine, why very high resistance wire is used is field windind and low ...

why very high resistance wire is used is field windind and low resistance wire is used in armature winding in DC shunt machine?

Determine primary to secondary turns ratio of transformer, Consider a sourc...

Consider a source of voltage v(t) = 10 √2 sin 2t V, with an internal resistance of 1800 Ω. A transformer that can be considered ideal is used to couple a 50- resistive load to th

What is trans conductance, Q. What is Trans conductance? It is ratio of...

Q. What is Trans conductance? It is ratio of small change in drain current to the corresponding change in the gate-to-source voltage for a constant gate-to-source voltage .it i

Analog, why h parameter used in low frequency transistor amplitfier

why h parameter used in low frequency transistor amplitfier

Give a general account of common drain amplifier, Q. Give a general account...

Q. Give a general account of common drain amplifier? The output is taken over the source terminal and when the dc supply is replaced by its short circuit equivalent, the drain

amplitude modulated waveform, The method by which electrical signals conve...

The method by which electrical signals convey information has been described. Systems components have been selected and interfaced to enable a chosen system to perform a desired o

Why earthing is required for any electrical equipments, Why earthing is req...

Why earthing is required for any electrical equipments, domestic installation and service building etc? For TL coaches what is the minimum I.R. value needed for new wiring? An

Sketch phasor diagrams for lagging power factor load, Q. For a transmission...

Q. For a transmission-line model that includes only the series impedance Z, sketch phasor diagrams for: (a) Lagging power factor load. (b) Leading power factor load.

Algorithm pseudo code and flow charts , Algorithm  pseudo code and flow  ...

Algorithm  pseudo code and flow  charts Algorithm:   before  writing  the program  the programmer must understand  the problem  for which are  program is to  be written. Then

What is work-sharing constructs, Q. What is Work-Sharing Constructs? A ...

Q. What is Work-Sharing Constructs? A work-sharing construct distributes execution of associated region amongst the members of team which encounters it. A work-sharing construc

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