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

What does the logo mean, This comes at the complication time, If we give th...

This comes at the complication time, If we give the LOGO option to the compiler, it take a bitmap file (i.e., ) as logo previous to loading the Application.

Flowchart, How to calculate the flowchart

How to calculate the flowchart

Explain the term- viruses, Explain the term- Viruses Use of firewalls a...

Explain the term- Viruses Use of firewalls and ant-virus software to prevent viruses entering a computer. It's also sensible not to open attachments/emails from "unknown" sourc

Difference between shadow and override in programming, Overriding tell us o...

Overriding tell us only the methods, but shadowing tells us the entire element.

Components of a 3-tier client server, What are the essential components of ...

What are the essential components of a 3-tier client server In a three-tier or multi-tier environment, the client executes the presentation logic (the client). The business log

Data reader by returned from a web services, Why can not data reader by ret...

Why can not data reader by returned from a Web Services Method? Ans) Due to, it is not serializable

Describe independent loops in fortran, Q. Describe Independent Loops in for...

Q. Describe Independent Loops in fortran? HPF offers extra opportunities for parallel execution by employing the INDEPENDENT directive to declare the iterations of a do-loop is

Show the code conversion with example, Q. Show the Code Conversion with exa...

Q. Show the Code Conversion with example? The conversion of data from one form to another is required. Consequently we will discuss an illustration for converting a hexadecimal

Describe about sole access protocol, Q. Describe about Sole Access Protocol...

Q. Describe about Sole Access Protocol? The atomic operations that have conflicts are handled with the help of sole access protocol. The method used for synchronization in this

Explain about operand address calculation, Q. Explain about Operand Address...

Q. Explain about Operand Address Calculation? In actual machines effective address can be a register address, memory or I/O port address. Register reference instructions for ex

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