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Topic: Code segment


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In the News (Fri 1 Jan 10)

  
 Intel 80x86 Assembly Language Tutorial
Segments are limited to 64 kilobytes in and before the 286 ( which some code is still written to be compatible with) and either 1 megabyte or up to 2^32 bytes depending on what settings are needed.
Also, if your code is large enough, and was compiled for backwards compatibility, the code segment might actually be a few segments back to back.
When looking at 80x86 code, it is important to remember that segments also define where certain information is. If there is a string that I want to print to the screen, the string might be held in the data segment.
www.wam.umd.edu /~minsler/tutorial.html

  
 CISC 872 Fall 1999 Class Notes
- given a code segment, identify or draw the call graph, control flow graph or supergraph
- given a small code segment show the after picture for a specific transformation
-Supergraph - draw one for a particular code segment; understand the advantages/disadvantages; recognize certain features of one
www.cis.udel.edu /~pollock/872f01/quiz1prep.html   (172 words)

  
 Silvio Cesare 'Unix ELF parasites and virus' (VX heavens)
It may be possible to keep the text segment as is, and create another segment consisting of the parasite code, however introducing an extra segment is certainly questionable and easy to detect.
The text segment is given the memory protection r-x (from this its obvious that self modifying code cannot be used in the text segment).
If the parasite code is to be inserted by extending the text segment backwards and using this extra memory, problems can arise because these ELF headers may have to move in memory and thus cause problems with absolute referencing.
vx.netlux.org /lib/vsc01.html   (172 words)

  
 MCS 275: REVIEW FOR EXAM 2
Write the source code for a function that is passed a segment as a parameter and a returns the circle that contains that segment as a diameter.
Write the source code for a function that is passed pointers to two circles and returns 1 if the regions (including boundaries) they enclose have a point in common.
Write the source code for a function that is passed the address of the first node (as defined above) in a linked list of circles and returns a pointer to the node in the list whose circle has maximum radius.
www.math.uic.edu /~srinirm/review2.htm   (527 words)

  
 HL7 DOCUMENTATION CHAPTER 2
Each segment is identified by a unique three character code known as the Segment ID. Although the actual segments are defined in various chapters the ID codes assigned to all segments are listed in Appendix A. All segment ID codes beginning with Z are reserved for locally defined messages.
The same trigger event code may not be associated with more than one message type; however a message type may be associated with more than one trigger event.
Eight digits are allotted to each such code, six to identify the active agent, and 2 to identify the salt, of single content drugs.
www.cpmc.columbia.edu /resources/hl7doc/hl72.2/hl7chp2.html   (527 words)

  
 1.html
code, segment threaded code) with illustrative examples, which are very helpful to understand these
Segment Threaded Code - no detail explain and I don't understand it
Threaded code is somewhat in the middle between native machine code and interpreted bytecodes
www.ics.uci.edu /~qxie/report/1.html   (157 words)

  
 6-2 THE GRAY CODE
As will be seen from the table, the Gray code only changes by one bit as we move around the disk from one segment to the next.
In this example the disk has been divided into 8 segments and each segment may be numbered decimally 0 through 7 or by a 3-bit binary code.
Such codes are used in instrumentation and data-acquisition systems where linear or angular displacement is measured and whenever it may be advantageous to avoid the possibility of intermediate glitch-producing states.
www.thiel.edu /digitalelectronics/chapters/ch6_html/ch6-2.htm   (786 words)

  
 MER Systems Inc.
This document discusses how to identify and measure portions of your code that consume memory in the data segment, and how to manage this limited resource.
Managing Data Segment Size The "Data Segment too large" error occurs in Delphi 16 bit applications when the size of static data, stack and local heap are larger than the 64k application limit imposed by Windows.
This reduces the resource hit on the data segment to the 4 bytes used by the pointer variable.
www.mers.com /INPRISE/FAQ/2964.HTML   (786 words)

  
 Graphics-based wire-cable management system - Patent 5021968
In the display preset option the CIC code of the preset is inputted, the preset's current activation status is obtained along with the slack length and activation status and is displayed to the user.
It also eliminates any self-crossing routes which are those routes where one segment crosses over another segment of the same route.
Thus, level one is associated with the origin path, level two is associated with the trench 18, level three is associated with the common lines 107, 108, 109 and 112, level four is associated with trench 19, and level five is associated with the destination 300.
www.freepatentsonline.com /5021968.html   (11931 words)

  
 Creating a New Data Segment
Newseg is the name of the class for the segments and should correspond to the name in '' in the start-up code.
This definition must be placed before all of the other segments that the start-up code defines.
The segment used to reference this offset is the data segment (DS) by default.
community.borland.com /article/0,1410,15006,00.html   (11931 words)

  
 data segment
Executable code is located in the code segment and uninitialised data in the bss segment.
Nearby terms: DataPoint « data processing « data rate « data segment » data service unit » data set » data set organization
< memory > The range of memory locations where the initialised data of a program produced by a Unix linker is located.
www.linuxguruz.org /foldoc/foldoc.php?data+segment   (11931 words)

  
 Cipher apparatus for multiplex pulse code modulation systems - Patent 4365111
In particular the code pulse corresponding to the unit's digit is used to control the generation of the cipher key pulses and since that code pulse varies in an essentially random manner the cipher key changes in a similar manner.
This pulse amplitude modulating equipment is a combined multiplexing and modulating equipment and is controlled from a crystal oscillator through the five-stage electronic ring which is the equivalent of a high speed five-segment distributor and the eight-stage ring which is the equivalent of a high speed eight-segment distributor.
This negative pulse applied to the grid of the left-hand section of tube 2312 is amplified and produces a sharp pulse in the plate circuit of this section of tube 2312.
www.freepatentsonline.com /4365111.html   (15962 words)

  
 Self-Modifying Code Clear
For the Pentium 4 processor, a write or a snoop of an instruction in a code segment, where the target instruction is already decoded and resident in the trace cache, invalidates the entire trace cache.
A write to a memory location in a code segment that is currently cached in the processor causes the associated cache line (or lines) to be invalidated.
Systems software, such as a debugger, that might possibly modify an instruction using a different linear address than that used to fetch the instruction, will execute a serializing operation, such as a CPUID instruction, before the modified instruction is executed, which will automatically resynchronize the instruction cache and prefetch queue.
www.rz.uni-karlsruhe.de /rz/docs/VTune/reference/Self-Modifying_Code_Clear.htm   (490 words)

  
 UN/EDIFACT Message DMRDEF Release: 00A
For submissions of messages that allow the inclusion of substructure maintenance requirements in the same DMR, the segment identification segment group, the composite data element identification segment group, the simple data element segment group, and the code set identification segment group are to be used to provide the modified substructure relative to the message's boilerplate.
0640 FTX, Free text A segment specifying the name and functional definition of a code value.
The component element names are to be defined in either the composite data element identification segment group or the simple data element identification segment group, as appropriate for the component structure.
www.unece.org /trade/untdid/d00a/trmd/dmrdef_c.htm   (490 words)

  
 Segmentation Comparison
Pointers to segmenter code and results from participating groups
USF Home Pages: University --- College --- Department --- Vision Lab Range Image Segmentation Comparison Project / jmin@csee.usf.edu
Compare tool C code (extremely portable) and a Makefile
marathon.csee.usf.edu /range/seg-comp/SegComp.html   (490 words)

  
 VER246.TXT
The problem was that the extra segment register (ES) did not point to the program segment prefix (PSP) when the program restarted.
The code that preserved the divide-by-zero vector broke the break vector, which was worse, so the code has been restored to its original form.
Any programs that were compiled with Native versions 2.4.3 through 2.4.5 do not restore the break vector.
www.idcomm.com /personal/lorenblaney/VER246.TXT   (711 words)

  
 Art of Assembly: Chapter Thirteen-5
An overlay is a segment of code which resides on the disk drive until the program actually needs to execute its code.
The pointer to the command string should contain the segmented address of a length prefixed string which is also terminated by a carriage return character (the carriage return character is not figured into the length of the string).
This value is measured from the beginning of the "program segment prefix", a segment marking the start of your file in memory.
maven.smith.edu /~thiebaut/ArtOfAssembly/CH13/CH13-5.html   (2637 words)

  
 advdos.txt
Programs are classified into one memory model or another based on the number of their code and data segments.
Programs that use separate segments for code, data, and stack are much easier to port to protected-mode environments such as MS OS/2; in addition,.COM files do not support the symbolic debugging information used by CodeView.
Programs that use the ROM BIOS keyboard driver are inherently less portable than those that use the MS-DOS functions and may interfere with the proper operation of other programs; many of the popular terminate-and-stay-resident (TSR) utilities fall into this category.
www.hadassah-col.ac.il /CS/staff/martin/micro_modern/masm/advdos.txt   (10949 words)

  
 Address Matching and Geocoding Resources
The underlying principle used in the address matching involves assigning geographic codes (such as a census tract or school district) and latitude-longitude based on the address location matched to a street line segment.
TRACTL, census tract code, left side of segment
Comparing codes to the results you obtained in the AMCDemo application, you can also confirm that the school is located tract 0005 (shown in the map as "5") and in census block 1005.
www.proximityone.com /adm.htm   (1534 words)

  
 [netbsd,02506] Undefined symbol `_pw_scan' referenced from text segment
とかになって、make buildができません。 これによって、 pwd_mkdbも cc -o pwd_mkdb pwd_mkdb.o getpwent.o -lutil pwd_mkdb.o: Undefined symbol `_pw_scan' referenced from text segment /usr/lib/libutil.so.5.0: Undefined symbol `_pw_scan' referenced *** Error code 1 Stop.
はらおかでございます。 NetBSD/sparcでmake buildすると、 cc -o chpass chpass.o edit.o field.o pw_yp.o table.o util.o getpwent.o -lrpcsvc -lutil chpass.o: Undefined symbol `_pw_scan' referenced from text segment edit.o: Undefined symbol `_pw_scan' referenced from text segment /usr/lib/libutil.so.5.0: Undefined symbol `_pw_scan' referenced *** Error code 1 Stop.
[netbsd,02506] Undefined symbol `_pw_scan' referenced from text segment
www.unixmagic.org /ml/netbsd/199808/msg00249.html   (1534 words)

  
 PHSS_27857
The reason for the trap not being sent was because the code segment for sending traps was not exeucted in case a walk was made.
The code segment was executed only in case of the mib2agt self-polling.
Resolution: Code is implemented in subagent's library to check whether the log message needs to go to master when subagent wants to send and also whether that message is originally from master OR subagent.
www.informatik.uni-frankfurt.de /RBI/hp-service/patches/s700_800/10.X/PHSS_27857   (1534 words)

  
 PHSS_26367
The reason for the trap not being sent was because the code segment for sending traps was not exeucted in case a walk was made.
The code segment was executed only in case of the mib2agt self-polling.
Resolution: Code is implemented in subagent's library to check whether the log message needs to go to master when subagent wants to send and also whether that message is originally from master OR subagent.
www.informatik.uni-frankfurt.de /RBI/hp-service/patches/s700_800/10.X/PHSS_26367   (1534 words)

  
 PHSS_27857
The reason for the trap not being sent was because the code segment for sending traps was not exeucted in case a walk was made.
The code segment was executed only in case of the mib2agt self-polling.
Resolution: Code is implemented in subagent's library to check whether the log message needs to go to master when subagent wants to send and also whether that message is originally from master OR subagent.
www.informatik.uni-frankfurt.de /RBI/hp-service/patches/s700_800/10.X/PHSS_27857   (1534 words)

  
 The educational encyclopedia, codes and decoders, numbering systems
7 segment decoder 7 segment decoder, 7 segment display decoder
Encoders, decoders, 7 segment displays encoders, decoders, 7 segment displays
Encoders: 4 bit gray code 4 bit gray code
users.pandora.be /educypedia/electronics/digitalcodes.htm   (227 words)

  
 List of country calling codes
The numbers are a prefix code so that no number has an initial segment that is an existing shorter number.
This is similar to the use of a trunk code in countries such as the United States, which uses a leading "1" to indicate that a national area code follows, except that the trunk code has been absorbed into the area code, for presentational reasons.
This code is used to dial into the country specified; each country also has an international call prefix used to dial out of the country.
www.sciencedaily.com /encyclopedia/list_of_country_calling_codes   (227 words)

  
 List of country calling codes - Open Encyclopedia
The numbers are a prefix code so that no number has an initial segment that is an existing shorter number.
This is similar to the use of a trunk code in countries such as the United States, which uses a leading "1" to indicate that a national area code follows, except that the trunk code has been absorbed into the area code, for presentational reasons.
This code is used to dial into the country specified; each country also has an international call prefix used to dial out of the country.
open-encyclopedia.com /List_of_country_calling_codes   (641 words)

  
 Format of the Canadian Postal Code
For urban postal codes, the third character of the FSA segment (V3H) in conjunction with the first two characters, describes an exact area of a city or town or other geographic area.
The postal code is placed on the same line as the municipality and the province and is separated from the province by two spaces.
The postal code is a six-character alpha-numeric code in the format "ANA NAN", where "A" represents an alphabetic character and "N" represents a numeric character.
www.infinitegravity.ca /postalcodeformat.htm   (641 words)

  
 Data and Text Segment
In general, you place the data segment first and the text segment second, though it's strictly not necessary to do so.
A program is usually divided into a data segment and a text segment.
In assmebly language code, there are instructions, data, and assembler directives.
www.cs.umd.edu /class/spring2003/cmsc311/Notes/Mips/dataseg.html   (641 words)

  
 List of country calling codes - Wikipedia, the free encyclopedia
The numbers are a prefix code so that no number has an initial segment that is an existing shorter number.
This is a list of country calling codes, also known as international direct dialing (IDD) codes, which are needed to access international telephone services.
United States, which uses a leading "1" to indicate that a national area code follows, except that the trunk code has been absorbed into the area code, for presentational reasons.
en.wikipedia.org /wiki/List_of_country_calling_codes   (641 words)

  
 Cisco - Dealing with mallocfail and High CPU Utilization Resulting From the "Code Red" Worm
A side note, unrelated to "Code Red", and pertaining to IRB architectures: Since Layer 2 multicast and broadcast packets have to be replicated, there could be a problem with IPX servers running on a broadcast segment that could bring the link down.
When the "Code Red" worm infects a host, it causes the host to begin probing and infecting a random series of IP addresses, which causes a sharp increase in network traffic.
It may not always be possible to run netflow to detect a "Code Red" infestation attempt because you may be running a version of code that does not support netflow, or because the router has insufficient or excessively fragmented memory to enable netflow.
www.cisco.com /warp/public/63/ts_codred_worm.shtml   (3295 words)

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