Bit manipulation techniques and mathematical functions, Computer Engineering

Assignment Help:

 Within micro controller's software, it is very useful to be able to manipulate binary bits i.e. from ports etc. The ALU has command to shift data, rotate data, compare data, set/clear bits, test bits and logical operate on data.

  LSLA     i.e shift A one place to the left fill up with 0
  LSLB     i.e shift B one place to the left fill up with 0
  LSRA     i.e shift A one place to the right fill up with 0
  LSRB     i.e shift B one place to the right fill up with 0
  ROLA     i.e rotate A one place to the left through carry
  ROLB     i.e rotate B one place to the left through carry
  RORA     i.e rotate A one place to the right through carry
  RORB     i.e rotate B one place to the right through carry
   CBA      i.e  A-B  with no answer stored just flags set
  CMPA    i.e compare A with memory i.e A-M
  CMPB    i.e compare B with memory i.e B-M
  BSET $20,#$1   i.e set bit 1 of memory address 20
  BCLR $20,#$1   i.e clear bit 1 of memory address 20
  BITA $20    i.e Check bit mask found in A with address 20
  BITB $20    i.e Check bit mask found in A with address 20
  ANDA $20   i.e logical and A with data at address 20
  EXORA $20  i.e logical exor A with data at address 20
  COM $20     i.e logical invert data at address 20 
  ORRA $20    i.e logical OR A with data at address 20
  MUL           ;Multiplies axb and stores the answer in D i.e both
  FDIV          ;Fractional divide using D/IX
  IDIV           ;Integer divide using D/IX
  ADDD         ;16 bit add to D
  DAA           ;Decimal adjust add sum to BCD data


Related Discussions:- Bit manipulation techniques and mathematical functions

Explain in detail about real time processing, Explain in detail about Real ...

Explain in detail about Real time (transaction) processing When booking seats on a flight, for illustration, real time (transaction) processing would be used. Response to a que

Find the complement of following functions, Q. Find the complement of follo...

Q. Find the complement of following functions and reduce to minimum literals 1. (A+C+D) (A+C+D') (A+C'+D)(A+D') 2. ABC(ABC' + AB'C + A'BC) 3. AB + AB' + A'C +A'C'

Breifly explain memory-to-memory architecture, Memory-to-Memory Architectur...

Memory-to-Memory Architecture The pipelines can access vector operands intermediate and final results straight in main memory. This necessitates the higher memory bandwidth. Fu

Explain the number unobtainable tone in strowger telephony, Explain the num...

Explain the number unobtainable tone in strowger telephony with waveforms and the timings. In the following figure illustrates the number unobtainable tone that is continuous

Explain 100 line exchange with two-motion line finders, Explain 100 line ex...

Explain 100 line exchange with two-motion line finders. Design: In such design, here are 24 line finders. When any of the 100 subscribers has to find access to any of the 24

Computer graphics, what isAdvantages of scan line algorithm, Computer Graph...

what isAdvantages of scan line algorithm, Computer Graphics?

Classification according to pipeline configuration, Classification accordin...

Classification according to pipeline configuration: According to the configuration of a pipeline, the following parts are recognized under this classification: Unifunct

What is problem statement, What is problem statement The problem state...

What is problem statement The problem statement is crucial for any analysis. Problem statement is general description of the user's desires, and difficulties. The motive of pr

Internal conditioning, types of internal conditioning with explanations and...

types of internal conditioning with explanations and examples

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