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Encyclopedia results for Self modifying code

Self modifying code





Encyclopedia results for Self modifying code

  1. Self-modifying code

    Refimprove date April 2009 In computer science , self modifying code is code computer programming code ... an entire program dynamically and then executing it Assembly language Self modifying code is quite straightforward ... no longer be required . High level languages Some languages explicitly permit self modifying code ... technique is to use self modifying code. ref http web.archive.org web 20080421173331 http www.csd.net ... days of computers, self modifying code was often used to reduce use of limited memory, or improve ... one instruction set computer . Donald Knuth s MIX architecture also used self modifying code to implement subroutine calls. Usage Self modifying code can be used for various purposes Semi automatic ... but to use self modifying code to perform certain functions. For example, a one instruction set computer ... self modifying code. Altering instructions for fault tolerance. ref http weblog.cenriqueortiz.com computing 2007 08 18 on self modifying code and the space shuttle os On Self Modifying Code and the Space ... increase A by one else decrease A by one do something with A Self modifying code in this case would ... virus es and some shellcode s. Viruses and shellcodes that use self modifying code mostly do ... of the security implications of self modifying code, all of the major operating system s are careful ... polymorphism polymorphism . Interaction of cache and self modifying code On architectures without coupled ... memory area . In some cases short sections of self modifying code execute more slowly on modern processors ... of the modifying code. The cache invalidation issue on modern processors usually means that self ... object oriented programming object oriented , approach to self modifying code, where code is created ... of self modifying code, and optimization in general, in favor of reduced development costs Citation ... some otherwise repetitive conditional branch es. Self modifying code can improve algorithmic efficiency . Disadvantages Self modifying code is seen by some as a bad best practice practice because ...   more details



  1. Self-synchronizing code

    distinguish self clocking signal In telecommunication s, a self synchronizing code ref US Federal Standard 1037C ref is a line code in which the symbol data symbol stream formed by a portion of one code word , or by the overlapped portion of any two adjacent code words, is not a valid code word. Put another way, a set of strings called code words over an alphabet is called a self synchronizing code if for each string obtained by concatenating two code words, the substring starting at the second symbol and ending at the second last symbol does not contain any code word as substring. A synonym for self synchronizing code is comma free code . ref citation last1 Berstel first1 Jean last2 Perrin first2 Dominique title Theory of Codes publisher Academic Press year 1985 ref However, sometimes the term comma free code is used in the meaning of prefix code . ref US Federal Standard 1037C ref The latter is a broader concept every self synchronizing code is a prefix code , but not all prefix codes are self synchronizing. A self synchronizing code permits the proper frame synchronization framing of transmitted code words provided that no uncorrected errors occur in the symbol stream external synchronization is not required. Self synchronizing codes also allow recovery from uncorrected errors in the stream with most prefix codes, an uncorrected error in a single bit may propagate errors further in the stream and make the subsequent data unreadable. Examples High Level Data Link Control HDLC Advanced Data Communication Control Procedures ADCCP UTF 8 See also Bit slip Self clocking signal Notes Reflist References FS1037C MS188 DEFAULTSORT Self Synchronizing Code Category Line codes Category Synchronization telecomm stub simple Self synchronizing code ...   more details



  1. Self-testing code

    Unreferenced date February 2007 Orphan date December 2008 Self testing code is software which incorporates built in tests see test first development . In Java programming Java , to execute a unit test from the command line , a class computer science class can have methods like the following. source lang java Executing code main code runs the unit test. public static void main String args test static void test assert foo bar source To invoke a full system test , a class can incorporate a method call. source lang java public static void main String args test TestSuite.test invokes full system test source See also Software development Extreme programming DEFAULTSORT Self Testing Code Category Unit testing Soft eng stub ru ...   more details



  1. Base modifying agent

    orphan date March 2010 unreferenced date January 2010 Base Modifying Agent is one which directly modifies the structure or chemical properties of Base chemistry bases . An example of this is nitrous oxide which is a deaminating agent. References chemistry stub Category Bases ...   more details



  1. Disease-modifying antirheumatic drug

    cite journal author Nandi P, Kingsley GH, Scott DL title Disease modifying antirheumatic ...   more details



  1. Receptor activity-modifying protein

    protein Name Receptor activity modifying protein 1 caption image width 500px HGNCid 9843 Symbol RAMP1 AltSymbols EntrezGene 10267 OMIM 605153 RefSeq NM 005855 UniProt O60894 PDB ECnumber Chromosome 2 Arm q Band 36 LocusSupplementaryData 37.1 protein Name Receptor activity modifying protein 2 caption image width HGNCid 9844 Symbol RAMP2 AltSymbols EntrezGene 10266 OMIM 605154 RefSeq NM 005854 UniProt O60895 PDB ECnumber Chromosome 17 Arm q Band 12 LocusSupplementaryData 21.1 protein Name Receptor activity modifying protein 3 caption image width HGNCid 9845 Symbol RAMP3 AltSymbols EntrezGene 10268 OMIM 605155 RefSeq NM 005856 UniProt O60896 PDB ECnumber Chromosome 7 Arm q Band 13 LocusSupplementaryData p12 Receptor activity modifying proteins RAMP s are a class of protein which interact with and modulate the activities of several Class B GPCR G Protein Coupled Receptor s including the receptors for secretin receptor secretin , calcitonin receptor calcitonin CT , glucagon receptor glucagon , and vasoactive intestinal peptide receptor vasoactive intestinal peptide VIP . ref name Sexton cite journal author Sexton PM, Morfis M, Tilakaratne N, Hay DL, Udawela M, Christopoulos G, Christopoulos A title Complexing receptor pharmacology modulation of family B G protein coupled receptor function by RAMPs journal Ann N Y Acad Sci volume 1070 issue pages 90 104 year 2006 pmid 16888151 doi 10.1196 annals.1317.076 ref There are three distinct types of RAMPs, designated RAMP1 , RAMP2 , and RAMP3 , each encoded by a separate gene. ref name Young cite journal author Young A title Amylin Physiology and Pharmacology Chapter 3 Receptor pharmacology journal Advances in Pharmacology volume 52 issue pages 47 65 year 2005 pmid 16492540 doi 10.1016 S1054 3589 05 52003 9 series Advances in Pharmacology isbn 978 0 12 032954 0 ref Function refimprove section date May 2009 Currently the function of RAMPs ... archiveurl archivedate quote MeshName Receptor activity modifying protein Neuropeptide receptors ...   more details



  1. Histone-modifying enzymes

    Image NucleosomeKG.jpg thumb 300px Histone Modifying Enzymes, the sites for modification are marked in color. The packaging of the eukaryotic genome into highly condensed chromatin makes it inaccessible to the factors required for gene Transcription genetics transcription , DNA replication, genetic recombination recombination and repair. Eukaryotes have developed intricate mechanisms to overcome this repressive barrier imposed by the chromatin . The nucleosome is composed of an octamer of the four core histone s H3, H4, H2A, H2B around which 147 base pairs of DNA are wrapped. Several distinct classes of enzyme can modify histone s at multiple sites. ref cite journal author Kouzarides T title Chromatin modifications and their function journal Cell volume 128 issue 4 pages 693 705 year 2007 month February pmid 17320507 doi 10.1016 j.cell.2007.02.005 url http linkinghub.elsevier.com retrieve pii S0092 8674 07 00184 5 ref The figure on the right enlists those histone modifying enzymes whose specificity has been determined. There are at least eight distinct types of modifications found on histones see the legend box on the top left of the figure . Enzyme s have been identified for acetylation , ref cite journal author Sterner DE, Berger SL title Acetylation of histones and transcription related factors journal Microbiol. Mol. Biol. Rev. volume 64 issue 2 pages 435 59 year 2000 month June pmid 10839822 pmc 98999 url http mmbr.asm.org cgi pmidlookup?view long&pmid 10839822 doi 10.1128 MMBR.64.2.435 459.2000 ref methylation , ref cite journal author Zhang Y, Reinberg D title Transcription regulation by histone methylation interplay between different covalent modifications of the core histone tails journal Genes Dev. volume 15 pages 2343 60 year 2001 doi 10.1101 gad.927301 pmid 11562345 issue 18 ref demethylation , ref name pmid17342184 cite journal author Klose RJ, Zhang Y title ... Histone methyltransferase PRMT4 pathway DEFAULTSORT Histone Modifying Enzymes Category Epigenetics ...   more details



  1. Self

    other uses The self is an individual person as the object of his or her own reflective consciousness . The self has been studied extensively by philosophers and psychologists and is central to many world religions. Philosophy main Philosophy of self The philosophy of self seeks to describe essential ... to defining these qualities. The self can be considered that being which is the source of consciousness ... over time. The philosophy of a disordered self is described in terms of what the psychiatrist understands ... of self The psychology of self is the study of either the cognitive and affective representation of one s identity or the subject of experience. The earliest formulation of the self in modern psychology form the distinction between the self as I, the subjective knower, and the self as Me , the object ... University Press. Original work published 1890 ref Current views of the self in psychology position the self as playing an integral part in human motivation, cognition, affect, and social identity . ref Sedikides, C. & Spencer, S. J. Eds. 2007 . The Self . New York Psychology Press ref Self following ... Pearce CW. 2000 . The construction of autobiographical memories in the self memory system. Psychol ... sense of self based upon preserved conceptual autobiographical knowledge. ref name Rathbone Rathbone ... to ground the self. Neurocase. 21 1 14. PMID 19382038 ref It is increasingly possible to correlate cognitive and affective experience of self with neural processes. A goal of this ongoing research is to provide ... identity are composed. The Disorders of the Self have also been extensively studied by psychiatrists. ref Berrios G.E. & Markov I.S. 2003 The self in psychiatry a conceptual history. In Kircher T & David A. eds The Self in Neurosciences and Psychiatry . Cambridge, Cambridge University Press ... cannot explain many constructs of self for cases of disorder, such as schizophrenia or schizo affective disorder. Religion main Religious views on the self Religious views on the self vary widely ...   more details



  1. In and of the Self

    Unreferenced date December 2009 Infobox Album See Wikipedia WikiProject Albums Name In and of the Self Type studio Artist Buried Inside Cover In And Of The Self.jpg Released 1999 Genre Metalcore Label Matlock Records This album In And Of The Self br 1999 Next album Suspect Symmetry br 2001 In and of the Self is the debut album by Canadian metalcore band Buried Inside band Buried Inside . It was released on Matlock Records in 1999. Track listing Social Skingraft 3 53 The Seductive Nature of Female Sexuality 3 50 In and of the Self 3 13 Unendowed Come Join The Party 3 26 Eve of Forever 4 22 Along the Edge of a Straight Razor 1 19 Sic Transit Gloria Mundi 5 36 DEFAULTSORT In And Of The Self Category 1999 debut albums Category Buried Inside albums ...   more details



  1. Will Self

    Infobox writer for more information see Template Infobox writer doc name Will Self image Will Self at Humber Mouth 2007.jpg caption pseudonym birth name William Woodard Self birth date Birth date and age ... Nicholas last Wroe title A life in writing Will Self date 2001 06 02 ref Jonathan Swift , ref http ... Will Self born 26 September 1961 is an English people English journalist, novelist and short story writer ... news old story 343 ref Early life Self was raised, in his words, in an effortlessly dull ... snobbish parents . His father was Peter Self , Professor of Public Administration at the London ... Understanding Will Self , p7 ref ref cite news url http www.guardian.co.uk books 2007 may 09 willself ...,Will Self Author date 2007 05 09 ref Through his father, Self is a descendant of minister Nathaniel Woodard . ref Understanding Will Self By M. Hunter Hayes p10 ref Despite the intellectual encouragement given by his parents, Self was an emotionally confused and self destructive child, harming himself ... location London work The Guardian first Will last Self title Biography Books genre ,Books,Culture date 2008 06 15 ref Self was a voracious reader from a young age. At ten an interest in science ... K. Dick reflecting the precociousness of Self s reading. Into his teenage years, Self claimed to have been overawed by the canon , stifling his ability to express himself. Nevertheless, Self s dabbling with illegal drugs grew in step with his prolific reading. Self was addicted to heroin, as well as many ... name tribune http www.iht.com articles 2006 12 07 features self.php Will Self s slow walk into downtown New York International Herald Tribune, 7 December 2006 ref Of Self s background Nick Rennison has ..., a place he has occupied almost from the start of his career. ref M. Hunter Hayes Understanding Will Self , p12 ref blockquote Education Self attended University College School , an independent school ... cite news url http www.independent.co.uk news people profiles you ask the questions will self ...   more details



  1. The code

    The code may refer to The Code band , a ska punk band The Code 2001 film , a 2001 documentary about Linux Thick as Thieves 2009 film , a 2009 film also known as The Code The Code TV series , a 2007 Australian police documentary The Code UK TV series , a 2011 British mathematics documentary An unwritten set of rules, for example in Fighting in ice hockey Etiquette ice hockey The Motion Picture Production Code aka Hays Code , a set of movie industry guidelines for censorship widely used between 1930 1968 See also Code disambiguation disambig it The Code ...   more details



  1. CODE

    CODE may refer to Crude Oil Data Exchange , an electronic business standard sanctioned by the American Petroleum Institute Cultural Olympiad Digital Edition CODE programming language Confederaci n de la Democracia 1972 , a defunct political coalition in Chile Code disambiguation disambig ...   more details



  1. No Code

    and the associated patient status designation Do not resuscitate Infobox album Name No Code Type studio ... Brendan O Brien music producer Brendan O Brien , Pearl Jam Last album Vitalogy br 1994 This album No Code br 1996 Next album Yield album Yield br 1998 Misc Singles Name No Code Type studio single 1 Who ... single 3 Off He Goes single 3 date 1996 No Code is the fourth studio album by the American alternative ... rock , worldbeat , psychedelia , and experimental music experimentalism . Although No Code debuted ... album, Pearl Jam again worked with producer Brendan O Brien music producer Brendan O Brien . No Code ... of Vitalogy . Following the summer U.S. leg of the band s Vitalogy Tour , the band began work on No Code ... , Georgia U.S. state Georgia . ref 1996 Album notes for No Code by Pearl Jam, CD booklet . New ... that the band was more on the fly during the making of No Code , and some good thing happened out ... finishes off the songs...But by the end of No Code , he was so burnt, it was so much work for him ... Vedder said, Making No Code was all about gaining perspective. ref name spin Marks, Craig. The Road ... production, No Code represented a deliberate break from Ten Pearl Jam album Ten s anthemic ... name spin David Browne of Entertainment Weekly stated that No Code displays a wider range of moods ... themes on the album deal with issues of spirituality, morality, and self examination. ref name allmusic ... 22, 1996. ref Vedder said, I think there s a little self examination in those songs, something that a lot ... is given credit in the No Code Gramophone record vinyl , but the credit is inexplicably absent from ... USA TODAY pre 1997 Fulltext &desc Grunge gurus break Code Pearl Jam s exotic jumble&pqatl google Review No Code . USA Today 01.D. August 23, 1996. ref rev2 Pitchfork Media rev2Score 5.4 10 ref name ... reviews p pearl jam no code.shtml Pearl Jam No Code . Pitchfork Media . September 1, 1996. Retrieved on May 20, 2009. ref rev3 NME rev3Score 7 10 ref name nme August 24, 1996 . Review No Code . NME ...   more details



  1. T-code

    Multiple issues wikify March 2012 orphan March 2012 notability January 2009 Each function in SAP ERP has an SAP Transaction Code associated with it. A transaction code or t code consists of letters, numbers, or both. You enter transaction codes in the command field. Use A transaction code will take you to any task in an SAP application faster. By entering a transaction code instead of using the menu, you navigate to a task and start the function in a single step. Like for creating users in SAP SU01 and for maintenance T code SU10 . T Codes are like shortcuts in windows OS. External links http tcodes.ofsap.com All SAP Transaction Codes details categorized by modules with SAP menu path http www.saptrainingtutorial.com SAP Tutorials Tcodes SAP Transaction Codes uses with respective module http www.saptutorials.com SAP Transaction Codes Largest SAP transaction codes repository on the web with easy navigation and description in four languages English, German, French and Dutch http www.easymarketplace.de transactions.php T Code look up SAP Transaction Codes with Report and Description http www.smart words.org sap transaction codes overview.html SAP Transaction Codes Overview The most useful SAP Transaction Codes incl. pdf for download Category SAP AG Category ERP software ...   more details



  1. Self-relocation

    Multiple issues context July 2008 expert July 2008 introrewrite July 2008 date September 2010 wikify January 2011 A self relocating program is a program that relocates its own address dependent instructions and data when run, and is therefore capable of being loaded into memory at any address. ref Citation last Dhamdhere first D M year 1999 title Systems Programming and Operating Systems publisher Tata McGraw Hill Education publication place New Delhi page 232 url http books.google.com books?id s7zgF7InxIgC&pg PA232&lpg PA232&dq self relocating programs&source bl&ots a 30zNozAp&sig cJWoxgE53Tn9vz0fMeGzsUvTNMg&hl en&ei AZu5Tv3tKuy62gWYx628Bw&sa X&oi book result&ct result&resnum 4&ved 0CHYQ6AEwAw v onepage&q self relocating 20programs&f false accessdate 8 Nov, 2011 ref Self relocating code is a form of self modifying code . Discussion Self relocation is similar to the relocation process employed by the linker loader when a program is copied from external storage into main memory the difference is that it is the loaded program rather than the loader that performs the relocation. As an extreme example of self relocation it is possible to construct a computer program so that it does not stay at a fixed address in memory, even as it executes. The Apple Worm ref cite journal journal Scientific American title Computer Recreations volume 285 month March year 1985 pages 38 39 first AK last Dewdney url http www.koth.org info akdewdney Second.htm ref is a dynamic self relocator. References Reflist See also Relocation computer science Relocation Category Computer programming Computer stub ...   more details



  1. Code segment

    Unreferenced date May 2009 In computing , a code segment , also known as a text segment or simply as text , is one of the Memory segmentation sections of a program in an object file or in computer memory memory , which contains executable Instruction computer science instruction s. It has a fixed size and is usually read only . If the text section is not read only, then the particular Computer architecture architecture allows self modifying code . Fixed position or position independent code may be shared in memory by several processes in segmented or paged memory systems. As a memory region, a code segment may be placed below the heap or stack in order to prevent Heap overflow heap and stack overflow s from overwriting it. See also data segment .bss Segmentation memory External links http blog.ooz.ie 2008 09 0x03 notes on assembly memory from.html mem sequence.c A program that sequentially lists memory regions in itself Category Executable file formats Category Memory management compu prog stub pl Segment kodu zh ...   more details



  1. Oligomorphic code

    Unreferenced stub auto yes date December 2009 Orphan date December 2009 An oligomorphic engine is generally used by a computer virus to generate a decryptor for itself in a way comparable to a simple polymorphic code polymorphic engine . It does this by randomly selecting each piece of the decryptor from several predefined alternatives. The pieces used to build the decryptor are usually too common to be detected with signatures. However, most oligomorphic viruses aren t able to generate more than just a few hundred different decryptors, so detecting them with simple signatures is still possible. Another method to detect an oligomorphic decryptor is to make a signature for each possible piece of code, group pieces that can substitute each other together and scan the file for a chain of decryptor pieces from alternating groups. Emulation may be used to detect the virus, but it can take more resources than necessary. See also Timeline of notable computer viruses and worms Polymorphic code Metamorphic code Self modifying code Alphanumeric code Shellcode Software cracking Security cracking Obfuscated code Malware stub DEFAULTSORT Oligomorphic Code Category Computer viruses ...   more details



  1. Self-documenting

    In computer programming , self documenting or self describing is a common descriptor for source code that follows certain loosely defined conventions for Naming conventions programming naming and Structured programming structure . These conventions are intended to enable developers, users, and maintainers ..., self describing systems may involve other areas in computing such as Joint application design application design and user interface s. Nevertheless, self documenting is a term commonly used to designate a particular style of writing applied to source code for programming language s, markup language s, and the like. The designation of self documenting code is often applied in a general sense, and not thoroughly ... Programming Comment computer programming Comment References Reflist External links Jef Raskin on Self documenting code http acmqueue.com modules.php?name Content&pa showpage&pid 290&page 1. Steve McConnell s http cc2e.com Page.aspx?hid 218 High Quality Routines checklist in his book Code Complete helps to facilitate the creation of self documenting code. Category Computer programming category software ... name selfdesc000 Cite web title The Myth of Self Describing XML url http workflow.healthbase.info monographs ... collision , Polysemy ref Overview The concept of Indirect self reference self description is not exclusively a property of certain kinds of source code. This concept has application to several areas ... refer to this concept. Objectives Commonly stated objectives for self documenting systems include make source code easier to read and understand minimize the effort required to maintain or extend legacy ... sources and facilitate automation through self contained Knowledge representation . Conventions Self documenting code is ostensibly written using human readable names, typically consisting of a phrase ... . The code must also have a clear and clean structure so that a human reader can easily understand ... whether and how well the objectives for a self documenting system can be realized. uniformity ...   more details



  1. PCIA-II/MAP Modifying Attributions of Parents Intervention

    The Parent Child Interaction Assessment II Modifying Attributions of Parents PCIA II MAP Bohr, 2008, 2005, 2004a, 2004b Bohr & Holigrocki, 2005 intervention is a brief cognitive behavioral manualized treatment for parents in high risk families. A parent and child are video recorded during a structured play activity see Parent Child Interaction Assessment II PCIA II PCIA II Holigrocki, Kaminski, & Frieswyk, 1999, 2002 and sessions involve the therapist and parent discussing excerpts from the video and conclude with a post treatment assessment. After filming the interaction, the clinical research team meets to review the video to identify areas of parenting strength and problematic behavior in the parent or child. Next, the parent meets with the therapist for four intervention sessions. Treatment is directed at helping the parent to develop parenting strengths and to identify and modify inaccurate, dysfunctional, or negative attributions. The intervention involves showing the parent the video recorded parent child interaction. In each of the intervention sessions, the therapist points out parenting strengths, creates a dialogue about what the child may be thinking, feeling, and intending and then elicits and discusses with the parent other possible attributions for the child s behavior. After the intervention sessions, the post treatment meeting involves filming the dyad again and having parent complete a series of measures to assess treatment efficacy. The PCIA II MAP intervention ... 7. Bohr, Y. & Holigrocki, R. 2006, June . Modifying negative parental attributions through play First ... . PCIA II MAP Treatment Manual Modifying Attributions of Parents intervention. Unpublished manuscript ... Modifying an abused mother s attributions to her son. Journal of Personality Assessment, 91 5 ... assessment becomes treatment Modifying the negative attributions of women victims of domestic violence ... II enactments Modifying an abused mother s attributions to her son. Journal of Personality Assessment ...   more details



  1. Self-employment

    benefits of self employment. Self employment is working for one s self. Self employed people can ... income from a trade or business that they operate personally. To be self employed is not necessarily the same as being a business owner Many self employed people conduct the day to day operations of the business ... survive the first 4 years in business. Policymakers increasingly view self employment in the form ... on as an easy fix . ref http www.inwent.org ez articles 171583 index.en.shtml Don t bank on self ... what is otherwise a simple employer employee relationship. Self employment in the US In the United States , any person is considered self employed for tax purposes if that person is running a business ... States Medicare taxes in the form of a SECA Self Employment Contributions Act tax. US Taxation The self employment tax in the United States is typically set at 15.30 which is roughly the equivalent .... The social security portion of the self employment tax only applies to the first 106,800 ... portion of the self employment tax. Half of the hypothetical self employment tax is allowed as a deduction against self employment income so only 92.35 of the self employment income is taxable at 15.30 , an effective tax rate of about 14.13 . However, this benefit disappears if self employment ... Tax Relief Act reduced the self employment tax by 2 for self employment income earned in calendar ... . The rate will return to 15.3 for income earned in calendar year 2012. Self employed persons sometimes ... equipment, cell phones, etc., can be deducted as legitimate business expenses. Self employed persons report their business income or loss on Schedule C of IRS Form 1040 and calculate the self employment ... tax liability exceeds 1,000. 401k retirement account Self employed workers cannot contribute ... vehicles available to self employed individuals to save for retirement. Many set up a SEP IRA ..., up to 49,000 2009 per year. There is also a vehicle called the Self Employed 401k or SE 401k for self ...   more details



  1. Self-levelling

    wiktionarypar self levelling Self levelling may refer to Self levelling suspension Self leveling paint Concrete Self compacting concretes Self compacting concrete Self leveling compound disambig ...   more details



  1. Self-hosting

    source code, it was self hosting. ref name LEVIN The compiler as it exists on the standard compiler ...Refimprove date April 2010 The term self hosting was coined to refer to the use of a computer program as part of the toolchain or operating system that produces new versions of that same program for example, a compiler that can compile its own source code . Self hosting software is commonplace on personal computer s and larger systems. Other programs that are typically self hosting include kernel computer science kernel s, Assembly language Assembler assemblers , shell computing shell s and revision control revision control software . If a system is so new that no software has been written for it, then software is developed on another self hosting system and placed on a computer storage storage device that the new system can read. Development continues this way until the new system can reliably host its own development. Development of the Linux operating system, for example, was initially hosted on a Minix system. Writing new software development tools from the metal that is, without using another host system is rare and in many cases impractical. History Main History of compiler writing The first self hosting compiler excluding assemblers was written for Lisp programming language Lisp by Hart and Levin at MIT in 1962. They wrote a Lisp compiler in Lisp, testing it inside an existing ... s are self hosting, in the sense that a compiler for the language can be written in that same language. Self hosting is an attribute of a particular language implementation and not of the programming ... in rare cases, Machine code machine language or can be produced using Bootstrapping compilers bootstrapping . Programming languages which have been self hosted include Ada programming language ... Dogfooding Futamura projection Self interpreter Self reference References Reflist Category Computer programming Category Self hosting software fr Auto h bergement informatique ja pt ...   more details



  1. Self-interpreter

    A self interpreter , or metainterpreter , is a programming language Interpreter computing interpreter written in the language it interprets. An example would be a BASIC programming language BASIC interpreter written in BASIC. Conceptually, self interpreters are closely related to self hosting compilers. This may sound paradoxical how can one implement a language in that language if it doesn t yet exist? However there is little mystery here. Self interpreters are always mocked up in some other existing language and then later converted to the language they interpret. In these cases the early mockups can be used to develop the source code of the interpreter. Once the system is Bootstrapping compilers ... considered as given. The definition of a language by a self interpreter is not well founded i.e., cannot be used to define a language , but a self interpreter tells a reader a lot about the expressiveness and elegance of a language. It also enables the interpreter to interpret its own source code ... of a self interpreter, namely whether a language feature in the interpreted language is implemented ... languages that have a particularly nice and elegant self interpreter, such as Lisp programming language Lisp or Prolog . Much research on self interpreters, in particular reflective interpreters ... the writing of its own interpreter. Clive Gifford introduced a measure quality of self interpreter eigenratio. Eigenratio is a ratio between computer time spent to run a stack of N self interpreters and time spent to run a stack of N 1 self interpreters, when N goes to infinity. This value does not depend ... Scheme programming language and variants thereof. See also meta circular evaluator Indirect self reference Quine computing Forth programming language Forth Self hosting Self reference Bootstrapping ... interpreter while providing access to the next higher level. The paper A Very Short Self Interpreter ... ref96 ref96.html Another simple self interpreter at http mazonka.com subleq A self interpreter ...   more details



  1. Self-propelled

    Self propelled often refers to some form of self propelled travel . It can refer to Self propelled anti aircraft weapon Self propelled anti tank gun Self propelled artillery Self propelled barge T 36 Self propelled gun Self propelled mortar Self propelled particles a concept used in statistical physics to model swarms. disambig ...   more details



  1. Self-reliance

    wiktionary self reliance Self reliance may refer to Self reliance is an attribute of individualism Self sufficiency in economics Self Reliance , an essay by Ralph Waldo Emerson Self Reliance , an episode of Dawson s Creek , an American television series disambig ...   more details




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