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

Orthogonal frequency division multiplexing, CURRENTLY, orthogonal frequency...

CURRENTLY, orthogonal frequency division multiplexing (OFDM) is emerging as the preferred modulation technique in modern high data rate broadband wireless mobile communication syst

Military services - application of software defined radio, Military Service...

Military Services - Application of Software Defined Radio With the use of SDR technology, the military can reduce radio development costs by providing a common platform to whi

Transistors, What is the difference between a hybrid pi and an re model?

What is the difference between a hybrid pi and an re model?

Determine the capacitance length of a pcb embedded stripline, 1. Determine ...

1. Determine the capacitance length of a PCB embedded stripline, assuming no fringing of the electrostatic field. 2. Determine the capacitance/unit length of the same embedded stri

For the nor and inverter realizations, Q. For the NOR and inverter realizat...

Q. For the NOR and inverter realizations shown in Figure, find the truth table, the type of gate realized, and the expression for the logic output, in each case.

Op-amp amplifier, A voltage signal generated by a sensor conditioning circu...

A voltage signal generated by a sensor conditioning circuit varies from -0.5V to +0.5V . The signal from the sensor is to be connected to the analog to digital  converter which onl

Determine active power-reactive power, Three equal impedances of D ohms res...

Three equal impedances of D ohms resistance and C inductive reactance are connected in a DELTA configuration. The line voltage is A00 volts. Determine the line current, phase cur

Evaluate the voltage source, Q. For the capacitor shown in Figure connected...

Q. For the capacitor shown in Figure connected to a voltage source, sketch i(t) and w(t).

Electronic devices and circuits, Determine the change in IC from 25ºC to 17...

Determine the change in IC from 25ºC to 175ºC for the transistor defined in this table for fixed-bias with RB = 240 k and = 100 due to the S(VBE) stability factor.

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