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Topic: CDR coding


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In the News (Sat 12 Dec 09)

  
  FAQ: Lisp Frequently Asked Questions 2/7 [Monthly posting] - [2-9] What is CDR-coding?   (Site not responding. Last check: 2007-10-26)
If the CDR code is CDR-NEXT, the next cell in memory contains the next CAR cell; in other words, the CDR pointer is implicitly thisaddress+1, where thisaddress is the memory address of the CAR cell.
If the CDR code is CDR-NIL, then this cell is the last element of the list; the CDR pointer is implicitly a reference to the object NIL.
This overhead on both CAR and CDR, coupled with the overhead on CDR to check for CDR codes, is generally enough that using CDR codes on conventional hardware is infeasible.
www.cs.cmu.edu /Groups/AI/html/faqs/lang/lisp/part2/faq-doc-9.html   (609 words)

  
 CDR coding   (Site not responding. Last check: 2007-10-26)
In computer science CDR coding is a compressed data representation for Lisp linked lists.
CDR coding is in fact a fairly general idea; whenever a data object A ends in a reference to another data structure B, we can instead place the structure B itself there, overlapping and running off of the end of A.
This problem is typically avoided by using CDR coding only on immutable data structures.
www.sciencedaily.com /encyclopedia/cdr_coding   (340 words)

  
 [No title]
Lt Col Yoder took the opposing view that the code should be used as a second listed code as in the case of a child being treated for bedwetting whose military parent has been deployed.
There is no definitive procedure code for tattoo removal so coders have been using either the code for removal of a skin lesion (17000) or the codes for dermabrasion (15780-15787), neither of which adequately describes the procedure.
It appears that there are codes missing from a range of available codes causing the introduction of these codes into the system to fail; e.g., codes 438.1-4 and codes 662, 663.
www.tricare.osd.mil /org/pae/ubu/downloads/06032003_minutes.doc   (6253 words)

  
 wikien.info: Main_Page   (Site not responding. Last check: 2007-10-26)
CDR is also the acronym for the Cuban political organisation, Comités de Defensa de la Revolución.
The functions cdr and car are used to refer to the tail (cdr..
CDR coding is in fact a fairly general..
www.hostingciamca.com /browse.php?title=C/C/CDR   (320 words)

  
 Unified Biostatistical Utility Functional Proponent Working Group Minutes, 7 - 9 Dec 99
CDR Karitis briefed the UBU on the Defense Dental Standard application and the efforts to integrate with the medical community upon implementation of CHCS II.
The APV should be coded with discharge to admission on the ADS Encounter Form and the procedure codes associated with the APV should not be included on the inpatient record.
Shears suggested that the reason that data appears on the form is that the clinic staff partially code the record prior to arrival of the patient, based on their knowledge of the patient and purpose of the appointment.
www.tricare.osd.mil /org/pae/ubu/min1299.htm   (7313 words)

  
 Linked list - Encyclopedia.WorldSearch   (Site not responding. Last check: 2007-10-26)
CDR coding does both these as well, by replacing references with the actual data referenced, which extends off the end of the referencing record.
Internal storage has the advantage of making access to the data more efficient, requiring less storage overall, having better locality of reference, and simplifying memory management for the list (its data is allocated and deallocated at the same time as the list nodes).
External storage, on the other hand, has the advantage of being more generic, in that the same data structure and machine code can be used for a linked list no matter what the size of the data is. It also makes it easy to place the same data in multiple linked lists.
encyclopedia.worldsearch.com /linked_list.htm   (4187 words)

  
 [No title]
CDR could develop policies or guidelines to represent Practice standards.\par }\pard \sl0 {\plain \par }{\plain \par }{\plain \b \tab Mastery of Common Procedures}{\plain \par }{\plain \par }\pard \fi-2160\li2160\sl0 {\plain \tab \tab It is likely that a majority of the Practice\'92s charges are generated by a limited number of services.
Since it is not realistic to expect providers to perfect their skills of documentation and coding for all procedures, it makes sense to pay attention to those services of greatest import.
CDR could develop guidelines to help manage these services most appropriately.\par }\pard \sl0 {\plain \par }{\plain \par }{\plain \b \tab Non-Provider Education}{\plain \par }{\plain \par }\pard \fi-2160\li2160\sl0 {\plain \tab \tab Care providers are ultimately responsible for documentation, diagnosis and coding.
www.codingandreimbursement.net /downloads/17-CDRsheet1.rtf   (909 words)

  
 U.S. Navy - Optometry   (Site not responding. Last check: 2007-10-26)
In many facilities our providers do not have sufficient background knowledge of coding and this results in an apathetic approach due to the apparent lack of importance attached to this issue compared to the other duties the optometrist is responsible for at their facility.
Coding is often dismissed as unimportant and is usually delegated down to the technician level which breeds even more disparity in results.
It was agreed that to improve coding we must develop guidelines to improve consistency among providers, clinics and services.
chppm-www.apgea.army.mil /doem/vision/Navy/coding03.asp   (379 words)

  
 [No title]
A code indicating the level at the TO (Receiving) institution for
A code indicating that the level granted for the equivalency
A code that is used to designate a course equivalent which
www.uwsa.edu /tis/admin/maint/manual/chp7d.doc   (3362 words)

  
 Cdr Backup -- Recommendations and Resources   (Site not responding. Last check: 2007-10-26)
''CDR is also the acronym for the Cuban political organisation, Comités de Defensa de la Revolución.'' In computer programming, cdr (pronounced ''cudder'') and car are a pair of primitive functions in Lisp and its best known offspring, Scheme.
Unrolled linked lists are simpler and often higher-performance than CDR coding (no "tagged pointers"; typically less fragmentation).
The "data" in question may be either data as such, or stored program code, both of which are treated the same by the backup software.
www.becomingapediatrician.com /health/29/cdr-backup.html   (972 words)

  
 [No title]
This will allow your code to work properly in a case-sensitive version of Common Lisp, since the print-names of symbols in the COMMON-LISP package are uppercase internally.
On the other hand, if you add declarations to tell the compiler what you think your code is doing, the compiler can then tell you when your assumptions are incorrect.
CDR Originally meant "Contents of Decrement portion of Register", which is what CDR actually did on the IBM 704.
www.cs.technion.ac.il /Courses/AI/lisp/lisp-style.2   (2670 words)

  
 ipedia.com: Linked list Article   (Site not responding. Last check: 2007-10-26)
There are a number of techniques to reduce this overhead, such as using a free list or memory pool, storing the data itself inside the nodes, and CDR coding.
Double-linked lists require more space per node (unless one uses xor-linking), and their elementary operations are more expensive; but they are often easier to manipulate because they allow sequential access to the list in both directions.
In addition to less code, it is also possible to have more than one linked list containing the same data elements, since including an element within the linked list doesn't involve the actual data element.
www.ipedia.com /linked_list.html   (3614 words)

  
 FAQ: Lisp Frequently Asked Questions 1/7 [Monthly posting]
Source code is available by anonymous ftp from ftp.das.harvard.edu:/pub/onlisp/ as a single 56kb file.
People who write code using Zmacs on Symbolics Lisp Machines are notoriously guilty of violating this rule, because the CPT6 font allows one to squeeze a tremendous amount of code on the display, especially if one spreads the code out horizontally.
Pronounced "Cudder" /kUdd@r/ (as in "a cow chews its cdr").
www.cs.uu.nl /wais/html/na-dir/lisp-faq/part1.html   (9249 words)

  
 [No title]
code associated with the principal campus is used for the
A code indicating the relative degree of complexity or
The coding structure is based on CDR element 1050.
www.uwsa.edu /tis/admin/maint/manual/chp7c.doc   (4232 words)

  
 Novel Secondary Ig VH Gene Rearrangement and In-Frame Ig Heavy Chain Complementarity-Determining Region III ...
IgH fingerprinting analysis of PCR-amplified CDR IIIH-encoding DNA fragments derived from the lymph node biopsy specimens of UPN 13, UPN 17, and UPN 49.
The sequence derived from the U band in all three cases is written as the consensus sequence against which the sequence derived from the L band is aligned.
A, IgH fingerprinting analysis of the CDR IIIH-encoding regions expressed in the two fusion cultures was conducted using oligos 48 and 15.
www.jimmunol.org /cgi/content/full/166/4/2235   (5847 words)

  
 22C:116, Midterm, Spring 1999
The Problem: What test should be done by the code for a system call such as read(f,buffer,len) to verify that it is reading into a buffer the user is allowed to manipulate, and not, for example, reading from the keyboard into the memory currently occupied by a system data structure such as the page table.
If one of those parameters is pointer passed by the user to the system, for example the buffer address passed to a a function such as read, the user must pass a virtual address.
The Problem: How could kernel code on the Hawk machine call a user function (this is modestly easy), and how would the kernel regain control when the user function attempted to return (this is a little harder!).
www.cs.uiowa.edu /~jones/opsys/spring99/hw/midterm.html   (1323 words)

  
 Linked list -- Facts, Info, and Encyclopedia article   (Site not responding. Last check: 2007-10-26)
(Click link for more info and facts about CDR coding) CDR coding does both these as well, by replacing references with the actual data referenced, which extends off the end of the referencing record.
The cons has two fields: the (4-wheeled motor vehicle; usually propelled by an internal combustion engine) car, a reference to the data for that node, and the (Click link for more info and facts about cdr) cdr, a reference to the next node.
Internal storage has the advantage of making access to the data more efficient, requiring less storage overall, having better (Click link for more info and facts about locality of reference) locality of reference, and simplifying memory management for the list (its data is allocated and deallocated at the same time as the list nodes).
www.absoluteastronomy.com /encyclopedia/l/li/linked_list.htm   (4359 words)

  
 FAQ: Lisp Frequently Asked Questions 2/7 [Monthly posting]   (Site not responding. Last check: 2007-10-26)
When appropriate declarations were supplied in the Lisp code, the performance of compiled Lisp arithmetic rivaled that of the Fortran code.
A more recent test found that numeric code compiled with optimizations using CMU CL is within the same ballpark as highly optimized Fortran code.
Even the speed of numeric code generated by other Lisp compilers (AKCL, Allegro, Lucid) was well within an order of magnitude of good Fortran and C compilers (although slower than CMU CL).
omicron.felk.cvut.cz /FAQ/articles/a677.html   (5057 words)

  
 Construction d'un distributeur de frites
This tutorial is for Absolute Beginners, no previous programming experience in any language is assumed!" cdr says, "MOO, despite all the Bovine jokes you may have heard or made yourself, actually stands for 'Multi-user Object Oriented' programming language..." cdr says, "MOO is kind of a cross between C++ and LISP, but much easier to learn.
You will actually be coding a program while you watch the tape!" cdr says, "Here's how it works.
cdr says, "The verb 'announce_all' is a verb defined for all rooms and it means 'tell everybody in the room' something or other..
tecfa.unige.ch /~jermann/staf14/m_frits.html   (2651 words)

  
 Open Coding and Inline Expansion   (Site not responding. Last check: 2007-10-26)
This special knowledge is used in various ways (open coding, inline expansion, source transformation), but the implications to the user are basically the same:
Attempts to redefine standard functions may be frustrated, since the function may never be called.
, inline code whose effect is equivalent to the function call is substituted for that function call.
www.caddr.com /sbcl-doc/x450.html   (233 words)

  
 4.8 Open Coding and Inline Expansion   (Site not responding. Last check: 2007-10-26)
This selection is based on the compiler policy, see section 4.7.
When a function call is ıopen coded, inline code whose effect is equivalent to the function call is substituted for that function call.
When a function call is ıclosed coded, it is usually left as is, although it might be turned into a call to a different function with different arguments.
www.umiacs.umd.edu /~bonnie/courses/programming/cmu_manual/node104.html   (285 words)

  
 [No title]
;;; ;;; The LOOP iteration macro is one of a number of pieces of code ;;; originally developed at MIT for which free distribution has been ;;; permitted, as long as the code is not sold for profit, and as long ;;; as notification of MIT's interest in the code is preserved.
This revision was informally distributed to a number of ;;; people, and was sort of the "MIT" version of LOOP for running in ;;; Common Lisp.
The basic idea is that we can provide a non-extensible ANSI-compatible loop environment, an extensible ANSI-superset loop environment, and (for such environments as CLOE) one which is "sufficiently close" to the old Genera-vintage LOOP for use by old user programs without requiring all of the old LOOP code to be loaded.
www.cs.cmu.edu /afs/cs.cmu.edu/project/theo-1/allegro-linux/home/code/loop.cl   (1841 words)

  
 eon_donuts.html
Cdr and paulb haven't really worked out much of a schedule yet, but when they do this is where you can find it!
You will actually be coding a program while you watch the tape!" [on Generic TV] cdr says, "Here's how it works.
Here it is:" [on Generic TV] donut_choice = this.kinds[random(3)]; player.location:announce_all(player.name," gobbles up a ",donut_choice,"."); [on Generic TV] cdr says, "Let's talk about what's happening here before we try to enter the code..." [on Generic TV] cdr says, " In line 1 random(3) generates a random number from 1 to 3.
tecfa.unige.ch /~berthoud/staf14/eon_donuts.html   (1324 words)

  
 [No title]   (Site not responding. Last check: 2007-10-26)
; ; Procedure: AWN-REPORT-PARSE:uar UAR-report-tokens ; ; This code is typically called by a root decoding module AWN-decoder.scm ; after it has come across a UAR bulleting in a feed and separated the ; bulletin into UAR reports.
is a two-digit code of the pressure level.
level-writer (cdr tokens))) (else (parse-one-tropo-level tokens tokens)))) ; This function tries to parse maximum wind information ; which is expected in the input stream.
zowie.metnet.navy.mil /Metcast/Code/AWND-uar.scm   (4143 words)

  
 2000 Newsgroup postings (11/24 -12/31) Lynn Wheeler
Executable code was still limited to 24bit virtual addresses but it was possible to allocate virtual pages in real storage above the 24bit line by setting the appropriate bits in the page table entry.
As long as the array code is not interrupted by GC, leaving a pointer to the data array on the stack/registers.
If the root cause is drives writing only the first part (or none) of the sector correctly but with a valid ECC code, you'd get an invalid checksum when you later tried to read the block.
www.garlic.com /~lynn/2000g.html   (14308 words)

  
 [No title]
For unoptimized Fortran code, CMU CL was about 4 times faster.
In format statements, ^P and ^Q are used to delimit text to be printed in a particular character style.
The PDP-6 and PDP-10 had 18-bit addresses and 36-bit words, allowing a CONS cell to be stored in one word, with single instructions to extract the CAR and CDR parts.
www.cs.cmu.edu /Groups/AI/lang/lisp/faq/lisp_2.faq   (5013 words)

  
 Creatures Developer Resource
This site is intended to share as much information as I have been able to find out about the technical side of the Creatures games.
The source code to most of these utilities is available on the Developer Information page.
The source code to a number of utilities is also provided as examples to get you started.
www.double.co.nz /creatures   (529 words)

  
 [No title]
;; Example genetic algorithm ;; by Ken Hartness ;; The following Lisp code can be used to process genomes represented ;; as bit strings.
If you use a different representation, the genetic ;; operators crossover and mutation will have to be modified.
This ;; actually allows for percentages up to 127, but the interpolate ;; function can handle "off the edge" values, reasonably.
www.shsu.edu /~csc_kth/cs582/ga-step.lsp   (563 words)

  
 [No title]
Thus "destructive" just means that the function may munge the list by modifying the pointers in the cars and cdrs of the list's cons cells.
Unfortunately, understanding and correcting the code which caused the export problem doesn't make those nasty error messages go away.
This is sort of a catch-all question for problems too small to merit a question of their own.
www.apl.jhu.edu /~hall/lisp/Lisp-FAQ-1.51.text   (10220 words)

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