Binary Subtraction

Negative numbers are represented in 2 complement form and subtraction is also  per formed  using  2 complement  method in microprocessor. Hence we will  discuss only 2  compliment method  of subtraction in this book.

To find  2 compliment of any binary  number

Use followings  steps

Find 1 complement  of the given  binary  number convert all 0 to 1 and  all 1 to 0 s.

Add 1  to the obtained d1  complement number to get the 2 complement of the original number.

The  obtained  binary number will  be the  negative  of the given  number.

Example :  Find 2 complement  of 010110112.  ( equal to + 91¹⁰)

Solution : 1 complement  of the given number is:    10100100

    Add 1                                                                            1

The 2 complement  form of the number                  101000101

This  will represent  -91₁₀ in microprocessor.

Posted Date: 4/3/2013 6:14:52 AM | Location : United States

Ask an Expert

Related Discussions:- Binary subtraction , Assignment Help, Ask Question on Binary subtraction , Get Answer, Expert's Help, Binary subtraction Discussions

Write discussion on Binary subtraction
Your posts are moderated

Write your message here..

Related Questions

How many interrupts are there in 8085, There are total 12 interrupts in 808... There are total 12 interrupts in 8085.

Analogue electronics, a single stage amplifier circuit a single stage amplifier circuit

Matlab ? uniform quantization, simulate a uniform quantizer that takes as a... simulate a uniform quantizer that takes as an input a vector of numbers and returns as an output the quantized vector. 1-Generate a random input vector of 10000 samples randomly in

Frequency response of amplifiers, Q. Frequency response of amplifiers? ... Q. Frequency response of amplifiers? All amplifiers exhibit variations of performance as the signal frequency is changed. The frequency response of an amplifier may be defined

Overcoming power shortages, Overcoming power shortages: NEP aims at me... Overcoming power shortages: NEP aims at meeting both energy and peak demand fully through 2012 along within creating 5 percent spinning reserves at national level. The policy

Marine electrical technology, Merits and demerits of? AC and DC onboard shi... Merits and demerits of? AC and DC onboard ship

Inquire, how we can say that 3 phase induction motor is short curcited pra... how we can say that 3 phase induction motor is short curcited practically?

Microcomputer - introduction to microprocessors , Microcomputer A micr... Microcomputer A microprocessor is a  general purpose central processing  until of a digital  computer system. It has  arithmetic  logical unit  control circuits and a set of r

Important function of common control subsystem, Q. Important function of co... Q. Important function of common control subsystem? If a call is destined to a number in an exchange other than present one processing the digits, initial translator generates t

Explain the 8259 microprocessor, Explain the 8259 microprocessor. 82... Explain the 8259 microprocessor. 8259: The 8259A adds 8 vectored priority encoded interrupts to the microprocessor. This can be expanded to 64 interrupt requests with us