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

Illustrate simple telephone communication system, Q. Illustrate simple tele...

Q. Illustrate simple telephone communication system with circuit and equation of current flow in microphone? Ans: Simple  Telephone  Communication: In the simplest form of

Name 5 different addressing modes, The five addressing modes are given belo...

The five addressing modes are given below: Immediate, Register, Direct, Implied addressing modes           Register indirect,

Combinational-sequential, Design combinational-sequential electronic logic ...

Design combinational-sequential electronic logic gate circuit for a car wash....

What is photovoltaics?, Photovoltaics  is a high-technology approach  to ch...

Photovoltaics  is a high-technology approach  to changing sunlight  directly  into  electrical  energy.  The  electricity  is direct  current  and  can  be  used  that  way,  chnag

Relationship between the induced e.m.f and the network, Mathematical relati...

Mathematical relationship between the induced e.m.f and the network Faraday noted that the e.m.f induced in a loop is proportional to the rate of change of magnetic flux by it:

Explain iron and silicon iron alloys, Explain iron and silicon iron alloys....

Explain iron and silicon iron alloys. Iron: Galvanised steel and iron wires that are usually used for earth conductor in low voltage distribution systems may also be utilize

When mt2 is negative and g is positive , When MT 2 is Negative  and g is ...

When MT 2 is Negative  and g is positive In this  case  gate  current  flows  through  junctions P 2 N 2   electrons  are injected from  N 2   layer to  P 2   a result  junct

Programming, ELEC 132 COURSEWORK – ADC This work will be assessed based...

ELEC 132 COURSEWORK – ADC This work will be assessed based on program demonstration (during lab sessions) and design. You will also have to submit your c-source codes as word o

Working of closed cycle and open cycle brayton cycle, Give the layout of a ...

Give the layout of a modern steam power plant and illustrate it briefly. With the help of schematic diagrams illustrate the construction and basic working of closed cycle and op

Define the general purpose embedded system, Define the general purpose embe...

Define the general purpose embedded system. a. General purpose microprocessor For illustration, Intel 80x86, Motorola 68HCxxx or Sparc b. Embedded general purpose process

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