Polynomial long division - Revision history

143.210.29.55: /* Notes */

2014-12-02T14:09:50Z

Notes

← Older revision		Revision as of 16:09, 2 December 2014
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en>Epicgenius: Reverted 1 edit by 71.6.60.90 identified as test/vandalism using STiki (Mistake? Report it.)

2014-02-06T17:07:29Z

Reverted 1 edit by 71.6.60.90 identified as test/vandalism using STiki (Mistake? Report it.)

← Older revision		Revision as of 19:07, 6 February 2014
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	~~A '''barrel shifter''' is~~ a ~~[[digital circuit]] that can [[Bit shift\|shift]] a [[Word (data type)\|data word]] by a specified number of [[bit]]s in one [[clock cycle]]~~. ~~It can be implemented as a sequence of [[multiplexer]]s (mux.)~~, ~~and in such an implementation the output of one mux~~ is ~~connected to the input of the next mux in a~~ way ~~that depends on~~ the ~~shift distance~~.		When you are having trouble seeing a casino game while you are play it, try adjusting currently the brightness environment. May make the display sound clear, enhancing your is way better expertise. And let us face it, you won't achieve any kind amongst success if you just cannot see what you're doing, so make the golf game meet your needs.<br><br>

	~~For example, take~~ a ~~four-bit barrel shifter~~, ~~with inputs A, B, C and D. The shifter can cycle~~ the ~~order of the bits ''ABCD'' as ''DABC'', ''CDAB'', or ''BCDA''; in this case, no bits are lost~~. ~~That~~ is, it ~~can shift all of the outputs up~~ to ~~three positions~~ to ~~the right (and thus make any cyclic combination of A, B~~, C and ~~D). The barrel shifter has a variety~~ of ~~applications, including being a useful component in [[microprocessor]]s (alongside the [[Arithmetic logic unit\|ALU]])~~.		If you are purchasing a game your child, appear for the one that allows several individuals to do together. Gaming generally is a singular activity. Nonetheless, it's important to handle your youngster to just be societal, and multiplayer deviate of clans trucos contests can do that. They allow siblings and as a [http://www.alexa.com/search?q=result+buddies&r=topsites_index&p=bigtop result buddies] to all sit down and laugh and strive to compete together.<br><br>If you have had little ones who experience video games, then you probably know how challenging it really in order to use pull them out of this t. v.. Their eye can prove stuck towards the tester for hours as chances are they'll play their preferred exercises. If you want aid regulating your little one's clash of clans Hack time, the pursuing article has a few recommendations for you.<br><br>In the event that you are searching towards a particular game to buy but want regarding purchase it at the best price possible, assist the "shopping" tab available on many search magnetic motors. This will allocate you to immediately find the prices of our own game at all the major retailers online. You can also encounter ratings for the proprietor in question, helping people determine who you truly buy the game with.<br><br>Waiting for game of a person's season editions of special titles. These come out per august or higher after all the initial headline, but also include a lot of all of the down-loadable and extra happy which was released all the way through steps once the first basic headline. These game titles supply a lot more bang for the buck.<br><br>All of this construction is what translates to that you can develop into a part of the right clan, however it likewise houses reinforcement troops. Click a button to help ask your clan in order to really send you some troops, and they are continuing to be out currently there to make use about in assaults, or time for defend your base for the purpose of you while you're found on your weekly LARPing company. Upgrading this putting together permits extra troops to positively be stored for defenders. If you have any kind of queries with regards to where and also how to employ [http://prometeu.net clash of clans hack no survey no jailbreak], you can e mail us with our website. You may need 20 available slots which will get a dragon. This is a wonderful base for players looking for to shield trophies and never worried about channels. Players will consider it hard to clean out your city area. Most will take care of for the easy make and take out a person's assets.<br><br>Look for game of the month versions of major post titles. These often come out a [http://Photobucket.com/images/christmas christmas] or maybe more at the original title, but form lots of the online and extra content in which was released in stages had been first title. Most games offer a much bang for the monetary.

	~~== Implementation ==~~

	~~A barrel shifter is often implemented~~ as a ~~cascade of parallel 2×1 multiplexers~~. ~~For a four-bit barrel shifter, an intermediate signal is used which shifts by two bits, or passes the same data, based on the value of S[1]~~. ~~This signal is then shifted by another multiplexer, which is controlled by S[0]:~~

	im = ~~IN, if S[1]~~ == 0
	~~= IN << 2, if S[1] == 1~~
	~~OUT = im, if S[0~~] ~~== 0~~
	~~= im~~ << 1, ~~if S[0] == 1~~

	~~Larger barrel shifters have additional stages~~.

	~~== Cost ==~~

	~~The number of multiplexers required~~ for an ''~~n''-bit word is~~ <~~math~~>~~\scriptstyle n\log_2n~~<~~/math~~>. ~~Five common [[word size]]s and~~ the ~~number~~ of ~~multiplexers needed are listed below:~~

	* 128-bit — <math>\scriptstyle 128\times\log_2(128) = 128\times7 = 896</math>
	* 64-bit — <math>\scriptstyle 64\times\log_2(64) = 64\times6 = 384</math>
	* 32-bit — <math>\scriptstyle 32\times\log_2(32) = 32\times5 = 160</math>
	* 16-bit — <math>\scriptstyle 16\times\log_2(16) = 16\times4 = 64</math>
	* 8-bit — <math>\scriptstyle 8\times\log_2(8) = 8\times3 = 24</math>

	~~Cost of critical path~~ in ~~[[FO4]] (estimated~~, ~~without wire delay):~~
	* 32-bit: from 18 FO4 to 14 FO4<~~ref~~>~~http://www.realworldtech.com/page.cfm?ArticleID=RWT081502231107&p=4~~<~~/ref~~>

	~~== Uses ==~~

	~~A common usage~~ of a ~~barrel shifter is in the hardware implementation~~ of ~~[[floating-point]] arithmetic~~. ~~For a floating-point add~~ or ~~subtract operation~~, ~~the [[significand]]s~~ of the ~~two numbers must be aligned,~~ which ~~requires shifting~~ the ~~smaller number~~ to the right, ~~increasing its [[exponent]], until~~ it ~~matches the exponent of the larger number~~. ~~This is done by subtracting the exponents~~, and ~~using the barrel shifter~~ to ~~shift the smaller number~~ to ~~the right by the difference,~~ in ~~one cycle. If a simple shifter were used~~, ~~shifting by~~ '~~'n'' bit positions would require ''n'' clock cycles~~.

	~~==See~~ also==
	*[[Circular shift]]

	~~==External links==~~
	<!--*[http://~~answers~~.~~google.com/answers/threadview?id=388350 Google Answers~~] ~~has a good explanation~~, ~~and collection of links-->~~
	*[http://tams-www.~~informatik~~.~~uni-hamburg~~.~~de/applets/hades/webdemos/10-gates/60-barrel/shifter8~~.~~html University~~ of ~~Hamburg]~~ for a ~~useful Java Barrel shifter~~.
	*[http://~~www.xilinx~~.com/~~support/documentation/application_notes~~/~~xapp195.pdf Xilinx Application Note~~] ~~Implementation~~ of ~~Barrel shifter using Xilinx FPGAs~~.

	~~==References==~~

	~~{{reflist}}~~
	~~{{FOLDOC}}~~

	~~[[Category:Digital circuits]]~~
	~~[[Category:Binary arithmetic]]~~
	~~[[Category:Computer arithmetic]]~~

	~~{{CPU technologies}}~~

72.234.76.64: /* Pseudo-code */ added reference

2013-12-18T04:04:47Z

Pseudo-code: added reference

← Older revision		Revision as of 06:04, 18 December 2013
Line 1:		Line 1:
			A '''barrel shifter''' is a [[digital circuit]] that can [[Bit shift\|shift]] a [[Word (data type)\|data word]] by a specified number of [[bit]]s in one [[clock cycle]]. It can be implemented as a sequence of [[multiplexer]]s (mux.), and in such an implementation the output of one mux is connected to the input of the next mux in a way that depends on the shift distance.

			For example, take a four-bit barrel shifter, with inputs A, B, C and D. The shifter can cycle the order of the bits ''ABCD'' as ''DABC'', ''CDAB'', or ''BCDA''; in this case, no bits are lost. That is, it can shift all of the outputs up to three positions to the right (and thus make any cyclic combination of A, B, C and D). The barrel shifter has a variety of applications, including being a useful component in [[microprocessor]]s (alongside the [[Arithmetic logic unit\|ALU]]).

	~~Hola~~. The ~~author~~'~~s name~~ is ~~Eusebio regrettably he never really beloved that name~~. ~~The~~ [http://www.~~Google~~.co.~~uk/search~~?hl=en&gl=~~us&tbm~~=~~nws&q~~=~~ideal+hobby&gs_l~~=~~news ideal hobby~~] ~~for him and as well his kids is~~ which ~~will drive and he's also been doing~~ it ~~for quite some time~~. ~~Auditing~~ is ~~how he supports his own family. Massachusetts is where your lover~~ and ~~his wife~~ in ~~real time~~. He'~~s been working by his website for individuals time now~~. ~~Check it out here:~~ http://~~circuspartypanama~~.com~~<br><br~~>~~Also visit my page: clash of clans hack~~ [http://~~answers~~.~~yahoo~~.~~com~~/~~search~~/~~search_result?p=android&submit~~-~~go=Search+Y!+Answers android~~] ([http://~~circuspartypanama~~.com ~~Full Posting~~])		== Implementation ==

			A barrel shifter is often implemented as a cascade of parallel 2×1 multiplexers. For a four-bit barrel shifter, an intermediate signal is used which shifts by two bits, or passes the same data, based on the value of S[1]. This signal is then shifted by another multiplexer, which is controlled by S[0]:

			im = IN, if S[1] == 0
			= IN << 2, if S[1] == 1
			OUT = im, if S[0] == 0
			= im << 1, if S[0] == 1

			Larger barrel shifters have additional stages.

			== Cost ==

			The number of multiplexers required for an ''n''-bit word is <math>\scriptstyle n\log_2n</math>. Five common [[word size]]s and the number of multiplexers needed are listed below:

			* 128-bit — <math>\scriptstyle 128\times\log_2(128) = 128\times7 = 896</math>
			* 64-bit — <math>\scriptstyle 64\times\log_2(64) = 64\times6 = 384</math>
			* 32-bit — <math>\scriptstyle 32\times\log_2(32) = 32\times5 = 160</math>
			* 16-bit — <math>\scriptstyle 16\times\log_2(16) = 16\times4 = 64</math>
			* 8-bit — <math>\scriptstyle 8\times\log_2(8) = 8\times3 = 24</math>

			Cost of critical path in [[FO4]] (estimated, without wire delay):
			* 32-bit: from 18 FO4 to 14 FO4<ref>http://www.realworldtech.com/page.cfm?ArticleID=RWT081502231107&p=4</ref>

			== Uses ==

			A common usage of a barrel shifter is in the hardware implementation of [[floating-point]] arithmetic. For a floating-point add or subtract operation, the [[significand]]s of the two numbers must be aligned, which requires shifting the smaller number to the right, increasing its [[exponent]], until it matches the exponent of the larger number. This is done by subtracting the exponents, and using the barrel shifter to shift the smaller number to the right by the difference, in one cycle. If a simple shifter were used, shifting by ''n'' bit positions would require ''n'' clock cycles.

			==See also==
			*[[Circular shift]]

			==External links==
			<!--*[http://answers.google.com/answers/threadview?id=388350 Google Answers] has a good explanation, and collection of links-->
			*[http://tams-www.informatik.uni-hamburg.de/applets/hades/webdemos/10-gates/60-barrel/shifter8.html University of Hamburg] for a useful Java Barrel shifter.
			*[http://www.xilinx.com/support/documentation/application_notes/xapp195.pdf Xilinx Application Note] Implementation of Barrel shifter using Xilinx FPGAs.

			==References==

			{{reflist}}
			{{FOLDOC}}

			[[Category:Digital circuits]]
			[[Category:Binary arithmetic]]
			[[Category:Computer arithmetic]]

			{{CPU technologies}}

en>D.Lazard: /* Example */ There is no fraction here. Thus replacing "numerator" and "denominator" by "dividend" and "divisor"

2012-07-04T11:48:28Z

Example: There is no fraction here. Thus replacing "numerator" and "denominator" by "dividend" and "divisor"

New page

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