Cpi compare immediate instruction , Electrical Engineering

Assignment Help:

CPI Compare Immediate Instruction

The 8 bit  data  specified  in the  instruction is  compared with the  contents of the accumulator. The comparison  is done by  subtracting  the 8 bit data form  the contents of the accumulator the  contents of the accumulator d not  change. The flags are modified similar  to subtraction. The instruction format is

CPI 8 bit data                    (A- 8bit data )

Flags : All  flags are modified as they would  change  in subtract operation but the  content of  both  the operand do no to change.

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

IF A> 8 bit data CY and Z Flags are reset.

IF A =8 bit  data Z flag  is set and CY flag is reset.

IF A < 8 bit  CY is set and Z  flag is  reset.


Related Discussions:- Cpi compare immediate instruction

Explain fet amplifiers, Explain FET amplifiers? Just like the BJT ampli...

Explain FET amplifiers? Just like the BJT amplifiers, FET amplifiers are constructed in common-source (CS, analogous to CE), common-drain (CD, analogous to CC), and common-gate

Dc machince, what ''s part of dcmotor or dc generator

what ''s part of dcmotor or dc generator

What are the functional types used in control words of 8251a, What are the ...

What are the functional types used in control words of 8251a? The control words of 8251A are divided into two functional types. 1. Mode Instruction control word 2. Comman

What are the features used mode 1 in 8255, What are the features used mode ...

What are the features used mode 1 in 8255? Two groups - group A and group B are available for stored data transfer. 1. Each group have one 8-bit data I/O port and one 4-bit

E. mechanics, a train weight 5 megaN is taking a slope of 1 in 200 at 45 km...

a train weight 5 megaN is taking a slope of 1 in 200 at 45 kmper hour.the engine put in 100 kw.determine the power to be put in by the engine it the train take the slope up of 1 in

Input resistance of an ideal op amp, Q. The input resistance of an ideal op...

Q. The input resistance of an ideal op amp with no feedback is infinite. Investigate the input resistance of an op amp with a feedback resistance RF: (a) When there is no resist

Digital circuits, Digital circuits In analog  circuits,  we think  som...

Digital circuits In analog  circuits,  we think  something about  voltages on terminals ranging over natural values.  This provides us the freedom to make an enormous variety

Find temperature coefficient of resistance in semiconductors, Semi-conducto...

Semi-conductors have temperature coefficient of resistance.  (A) Negative                                    (B) Positive (C) Both positive and negative        (D) none o

Draw and explain the circuit of wein bridge oscillator, Q. Draw and explain...

Q. Draw and explain the circuit of Wein bridge oscillator. Obtain the expressions for the (i) frequency of oscillation and (ii) condition for oscillation. Will oscillat

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