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Topic: Byte prefixes


  
 Byte - Wikipedia, the free encyclopedia
A byte is commonly used as a unit of storage measurement in computers, regardless of the type of data being stored.
On some computers it is possible to address bytes of arbitrary length.
On modern computers, an eight-bit byte or octet is by far the most common.
http://en.wikipedia.org/wiki/Byte

  
 Binary prefix - Wikipedia, the free encyclopedia
bytes, but rather 1.44 × 1000 × 1024 bytes (approximately 1.406 binary MB, or 1.475 decimal MB).
In computing, Binary prefixes are often used to quantify large numbers where powers of two are more useful than powers of ten.
Sectors are always powers of two, and may range from 512 bytes (floppy disks) to 2048 bytes (DVDs).
http://en2.wikipedia.org/wiki/Mebi

  
 Byte definition of Byte. What is Byte? Meaning of Byte. What does Byte mean? Byte synonyms, Byte antonyms by Free ...
Byte synonyms, Byte antonyms by Free Online Dictionary, Thesaurus and Encyclopedia.
byte - a sequence of 8 bits (enough to represent one character of alphanumeric data) processed as a single unit of information
bit - a unit of measurement of information (from Binary + digIT); the amount of information in a system having two equiprobable states; "there are 8 bits in a byte"
http://dict.thefreelibrary.com/byte

  
 Development and attributes of z/Architecture
If the second byte of an instruction is defined as part of the operation code, it cannot profitably be used as the target of the execute instruction, because any temporary modification of that byte would cause the execution of a completely different instruction.
A number of the few remaining one-byte operation codes would be used, along with another byte that could take values from 0 to 255, to create a large number of two-byte operation codes.
However, the problems that instruction prefixes present to processor design and software debugging required a different solution.
http://www.research.ibm.com/journal/rd/464/plambeck.html

  
 The FLIC file format
Following the header are two lists with byte values and a third list with word values a variable-length encoding (technically, it is also a list of bytes).
This is essentially an 8-byte chunk: 6 bytes for the chunk header and two bytes for the count of lines in the chunk.
All "word" (two bytes) or "double word" (four bytes) values are stored in Little Endian (this is the byte order used by the Intel 80x86 and Pentium processor series).
http://www.compuphase.com/flic.htm

  
 Bit(s) and Byte(s) Quantifiers
Computer Data Representation and Number Systems / Computer data repræsentation og talsystemer
The binary peta- and exa- loadings, though well established, are not in jargon use either --- yet.
But when used with bytes or other things that naturally come in powers of 2, they usually denote multiplication by powers of 1024 = 2^(10).
http://www.danbbs.dk/~erikoest/quanti.htm

  
 Understanding Intel Instruction Sizes
Each prefix adds one byte to the instruction.
Although Intel instructions vary in size from one byte up to fourteen bytes, all Intel instructions have the same six-part structure.
It is possible to change the value of the immediate byte by coding the instructions in machine language, creating two new, nameless instructions for quickly dividing and multiplying a byte by a constant.
http://www.swansontec.com/sintel.htm

  
 Translating Assembly Code to Machine Code
If there is no displacement, the data bytes would appear in bytes 3 and 4.
I.e., one byte is needed for an 8-bit address and two bytes are needed for a 16-bit address.
If there is 16-bit displacement and 16-bit data, the data bytes appear in bytes 5 and 6.
http://www2.hawaii.edu/~sdunan/ics312/outlines/topic18/mach_lang.html

  
 byte
According to Eric Raymond (in his wonderful New Hacker's Dictionary), the byte began to become standardized at 8 bits around 1956, and was fixed at 8 bits by the introduction of the IBM/360 computer.
Present-day electronic computers represent information in binary notation; the signals can have only one of two values.
An example of a byte, written as a binary number, would be “10101011”.
http://www.sizes.com/units/byte.htm

  
 Nedron's Faq-O-Matic: Bits v. bytes, mebi v. mega, what gives?
The result is that today "everybody" does not "know" what a megabyte is. When discussing computer memory, most manufacturers use megabyte to mean 2^20 = 1 048 576 bytes, but the manufacturers of computer storage devices usually use the term to mean 1 000 000 bytes.
Then data storage for gigabytes, and even terabytes, became practical, and the storage devices were not constructed on binary trees, which meant that, for many practical purposes, binary arithmetic was less convenient than decimal arithmetic.
To alleviate this ambiguity, prefixes for binary multiples have been adopted by the International Electrotechnical Commission (IEC) for use in information technology.
http://nedron.net/fom_server/cache/17.html

  
 Instruction Set
The first part of an instruction is the optional instruction prefixes, which can be in any order and take up one byte each.
The 1 or 2 byte opcode is next, then it is the addressing-form specifier, if required.
Then there is a displacement, also if required, and an immediate data field, also if required, both of which can be 1, 2 or 4 bytes long.
http://www.arspentia.org/evilinc/instruction_set_p4

  
 XPguide.info: In encyclopedias you will find data as something immaterial. Teoretically, the size of data cannot be ...
Prefixes has not been created for binary systems, and so people sometimes understand them wrong.
In comparison with byte: Byte sometimes indicates size that is approximately and not exactly 8 bits.(e.
One Byte can represent any number from 0 to 255.
http://www.atlguide2000.com/begin/index.php?act=view&aid=144

  
 3. Technical and Economic Fundamentals of Hypercommunication (telephone and computer) networks
Bits are also known as binary digits expressed within a septet (byte with seven bits) or octet (byte with eight bits).
A bit is a single digit within a byte.
First, the function of the hypercommunications network is to transport bytes of voices and data.
http://www.hypercommunication.net/c3web.html

  
 FD32 Documentation - Standards Compliance
Unless differently stated (for example saying "a 7-bit byte"), in FD32 a byte will be an octet.
A great confusion is arising on the computers market on the meaning of units and prefixes referring to data storage and transmission.
Hard disk manufacturers are used to use decimal multiples for a long time, while operating systems often use binary multiples, and unfortunately they often use the SI prefixes for them, that is wrong.
http://freedos-32.sourceforge.net/standards.html

  
 QTextCodec Class
If the encoding is multi-byte then it will have "state"; that is, the interpretation of some bytes will be dependent on some preceding bytes.
It examines the first len bytes of chars and returns a value indicating how likely it is that the string is a prefix of text encoded in the encoding of the subclass.
Return the MIB enum for the encoding if it is listed in the IANA character-sets encoding file.
http://doc.trolltech.com/qtextcodec.html

  
 [No title]
In general, in the context of magnetic and optical storage systems, both the definitions 1 megabyte = 1000 * 1000 byte and 1 megabyte = 1000 * 1024 byte seem to be much more popular than 1 megabyte = 1024 * 1024 byte.
Note: Historically, the term 'byte' has been also used in the computer industry to refer to the information capacity required to represent one text character or to refer to the smallest fraction of a machine word which can be addressed separately [4].
However, today the meaning of 1 byte = 8 bit [5] clearly dominates any other meaning, therefore standardization on the modern widely known meaning of 'byte' is adequate.
http://www.cl.cam.ac.uk/~mgk25/information-units.txt

  
 Microsoft Access: Create a query field that removes leading zero and does not alter the original field values
This field is a 6 byte "text" field and prefixes any number with zeros until the 6 bytes are populated.
http://www.experts-exchange.com/Databases/MS_Access/Q_21064920.html

  
 Winsock Programmer's FAQ: How to Packetize a TCP Stream
That is, if you are sending 8 data bytes, a 2-byte length prefix will be "10" for this packet.
That's the size I use in my programs, but the code is flexible enough to allow any prefix size you want, up to 4 bytes.
If you use 3-byte prefixes, that demands up to a 16 megabyte buffer, and for 4-byte prefixes you'd need a 4 gigabyte buffer.
http://tangentsoft.net/wskfaq/examples/packetize.html

  
 Using as - 80386 Dependent Features
Jump instructions are always optimized to use the smallest possible displacements.
Opcode prefixes are usually given as single-line instructions with no operands, and must directly precede the instruction they act upon.
This is accomplished by using byte (8-bit) displacement jumps whenever the target is sufficiently close.
http://www.gnu.org/software/binutils/manual/gas-2.9.1/html_chapter/as_16.html

  
 Slashdot New Power-of-Two Prefixes?
I noticed this morning that Iomega's 100MB Zip disks have a 10**8 byte capacity, and Maxtor also considers a megabyte to be 10**6 bytes.
Second is to eliminate ambiguity over whether, for example, a megabyte is 10**6 bytes or 2**20 bytes.
2^30 bytes = 1 Igagay Bytes (1 IB)
http://slashdot.org/articles/99/08/10/0259245.shtml

  
 Internet Technologies I, Session I: Core IP
Even high-level programming languages typically allow some direct bit-level manipulation of data; operations including bit shifting and various logical operations; 'bit-wise logical and' compares bits at corresponding positions in two quantities, and returns 1 if and only if both input bits are 1.
It then compares the computed prefix against the network prefixes in its routing table, sees that the second entry matches, and forwards the packet to 208.208.208.253 for further handling.
If the destination address, when masked against the mask associated with any of the router's interfaces or routing table entries, results in a network prefix identical to the interface's or table entry's own prefix, deliver direct out that interface or to the next-hop router indicated in that table entry.
http://bob.marlboro.edu/~msie/2002/it/it1-s1.html

  
 Romulus 2 : Computer UK - Bits & Bytes Reference
Although computer data is normally measured in binary code, the prefixes for the multiples are based on the metric system.
1 exbibyte ( EiB) = 2^60 bytes = 1,152,921,504,606.846,976 bytes
In the metric system the "k" or "kilo" prefix is always lowercase but since these binary uses are not properly metric, it has become standard to use an uppercase "K" for the binary form.
http://www.romulus2.com/articles/guides/misc/bitsbytes.shtml

  
 Weak Keys in RC4
One way to exploit our analysis of the state table is to find circumstances under which one or more generated bytes are strongly correlated with a small subset of the key bytes.
Given a known generator output which includes the first generated byte, one could assume that the key was weak and search only the weak keys which would generate the known initial byte.
The first byte is indexed by "counter", which is incremented for each iteration of the loop.
http://www.tik.ee.ethz.ch/~mwa/RC4/WeakKeys.txt

  
 ATM Commands
Permit AESAs where the first 13 bytes of the address match an ILMI prefix used on the interface.
For more information, refer to the ATM Switch Router Software Configuration Guide.
New Ready File 4999702 bytes (#records 28796); Active File 65 bytes (#records 0)
http://www.cisco.com/univercd/cc/td/doc/product/atm/c8540/12_1/12_c_e/command/atm.htm

  
 Binary prefix : Byte prefixes
For example, a 50 byte text string, 100 KB (kilobytes) files, 128 MB (megabytes) of RAM, or 30 GB (gigabytes) of disk storage.
It uses material from the wikipedia article Binary prefix : Byte prefixes.
Specifically, popular usage in computing often denotes whole powers of two, while SI prefixes are powers of ten.
http://www.eurofreehost.com/by/Byte_prefixes.html

  
 AlphaSort: A Cache-Sensitive Parallel External Sort
If the elements being stored are 4 bytes in size and the cache line size is 32 bytes, the size of each line-list structure would be 32 bytes and could hold 7 4-byte elements.
Within each 32-byte cache line are 3 key prefix, record pointer pairs (8 bytes each).
Size (bytes) : the number of gigabytes you can sort for a penny.
http://www.research.microsoft.com/barc/SortBenchmark/AlphaSort.html

  
 Cisco LS1010 - Release Notes for Release 11.2(10)WA3
As a result, the end system addresses are not automatically summarized using the 13-byte prefixes derived from the switch address.
Use the following command sequence, which turns automatic summarization off and on, to correct this problem.
http://www.cisco.com/univercd/cc/td/doc/product/atm/ls1010s/wa3/11_2_10/4012_04.htm

  
 [No title]
If the second byte of an EDxx opcode is CB, DD, FD or ED, it has no effect on following instructions: EDFD210000 NOP; LD HL,0 FDxx/DDxx: Any DD or FD before the FDxx/DDxx is ignored; in a sequence of DDs and FDs, it is only the last one that counts.
Check out my Z80 Opcodes list for a complete list of all instructions.
I use the notation C.2 to mean bit 2 of C. "inp" is the byte being input.
http://www.z80.info/z80undoc3.txt

  
 The Intel Intruction Format
This byte is a bit more complicated then all the others, and is rather opcode dependent.
This is the byte that allows you to do such things as '[EAX*8]' to address memory.
It's a modifier, and it belongs in the intruction prefix byte.
http://www.kos.enix.org/pub/iinfor.html

  
 BGP and MPLS-Based VPNs
So once we think in terms of routing 12 byte prefixes, there is a natural way to propagate the information.
This is a long 8 byte version of the 2 byte community attribute already known in BGP.
For Customer A, we will create a VRF named vrf00001 and associate it with Route Distinguisher 888:1 (abbreviation for two bytes that are 888 in decimal, followed by six bytes ending in 1).
http://www.netcraftsmen.net/welcher/papers/mplsvpn.html

  
 WLUG-Wiki - Mega Byte
This was not a problem, since computer and non-computer jargon generally didn't overlap.
Originally, the "kilo"/"mega"/etc prefixes were used for 2^(10*x) amounts in computer jargon, while they usually mean 10^(3*x).
When computers began pervading all aspects of life, some people deemed this duality confusing and proposed to introduce new "kibi"/"mebi"/etc prefixes for the base-2 factors and to use the "kilo"/"mega"/etc prefixes for traditional base-10 factors.
http://www.wlug.org.nz/MegaByte

  
 [No title]
the byte being mapped is a prefix or character respectively.
For multiple byte encodings, when a byte represents a prefix **
The min field is the 1st byte mapped for this prefix; the **
http://www.ohnolab.org/~tazawa/xml/XML-Parser-2.27/Expat/encoding.h

  
 prefixes for binary multiples
The common practice of using the SI decimal multiple and submultiple prefixes with binary quantities, as in the term "kilobyte", has lead to some confusion (see the discussion of megabyte in byte for examples).
Applying this system of prefixes to the byte, for example, one gets:
in 1996 urging the International Electrotechnical Commission to devise another set of prefixes specifically for binary quantities, and the IEC published such a standard
http://www.sizes.com/units/prefixes_binary.htm

  
 [No title]
Because data is packed with huffman algorithm, total subroutine size is of about 500 bytes.
ade32_init() ------------ void __cdecl ade32_init(DWORD flagtable[512]); This subroutine initializes internal flag table, which is of 2048 bytes size.
ade32_disasm() -------------- DWORD __cdecl ade32_disasm(IN BYTE* opcode, IN OUT disasm_struct* s, IN DWORD flagtable[512]); This subroutine disassembles opcode into disasm_struct* s structure, using previously initialized flag table.
http://29a.host.sk/29a-6/29a-6.301

  
 Info: (as.info) Index
* padding the location counter given number of bytes Balign.
http://es-sun2.fernuni-hagen.de/cgi-bin/info2html?(as.info)Index

  
 Rabbit Semiconductor Rabbit 3000 Microprocessor
For example, numerous single-byte opcodes that execute in two clock cycles, 16-bit loads and stores, 16-bit logical and arithmetic operations, 16 x 16 multiply (executes in 12 clocks), long jumps and returns for accessing a full megabyte of memory, and one byte prefixes to turn memory access instructions into internal and external I/O instructions.
The improved instructions offer both greater efficiency and execution speed of compiler-generated C code.
http://www.rabbitsemiconductor.com/products/rab30/index.html

  
 Re: Fast export and Varchar [Fri, 02 Aug 2002]
Also anytime you are trying to output a constant, it prefixes 2 byte length before it.
Again to remove the 2 byte length, you have to cast the constant to a fixed length
You can cast the varchar field into a fixed length field and that should take away the 2 byte char in front of the field.
http://www.teradataforum.com/teradata/20020802_175404.htm

  
 Units (Clustering implementations)
Units ( String over, double overScale, int overFactor)
Units ( String over, double overScale, int overFactor, String under, double underScale, boolean invert)
Units ( String over, double overScale, int overFactor, String under, double underScale, boolean invert, String [] prefix)
http://www.activenet.lancs.ac.uk/apis/clusterimpls/UK/ac/lancs/clustering/impl/Units.html

  
 Talk:SI prefix - Wikipedia, the free encyclopedia
Does anyone have an objction to me moving most of the explanation of byte prefixes to
It's used for anything based on the power of 2 (e.g., bits, words), not just bytes.
Anyone object if I merge them all into
http://en.wikipedia.org/wiki/Talk:SI_prefix

  
 tech-kern: Re: bus.h style question
My idea is to redesign the names for datum size and byteorder by using int and byte prefixes: bus_space{read,write}_N -> bus_space_{read,write}_int{8,16,32,64} where the _intN names suggest (to me, anyway) translation to CPU byteorder for ints.
I think these names are a good implicit reminder of the alignment restrictions, too.
http://mail-index.netbsd.org/tech-kern/1997/08/21/0014.html

  
 Internet Bandwidth comparisons
For more on byte prefixes, see International System of Units (SI)
GB = Gig or Gigabyte, about 1 billion
http://www.usewisdom.com/computer/internet/bandwidth.html

  
 Changes
adds support for byte range transfers for PDF documents.
enhances logging support to record the number of bytes transferred and the actual HTTP status code (previously, the status code was always recorded as 200).
Proxy by hostname no longer prefixes hostnames with 80- and s443- when the remote hostname uses the standard web ports of 80 for http traffic and 443 for https traffic, although EZproxy recognizes this form to allow existing bookmarks to work properly.
http://www.ezproxy.com/support/changes.html

  
 "D" Measurement Definitions
bps ( bits per second) = 0.1 byte / s
data = byte ( data ; category unit)
data flow rate = byte / s ( data flow rate ; category unit)
http://www.convertit.com/Go/Maps/Measurement/Units.ASP?Letter=D

  
 [No title]
pref_done); + + return prefix; +} + +/* + * DANG_BEGIN_FUNCTION instr_sim + * + * description: + * instr_sim is used to simulate instructions that access the + * VGA video memory in planar modes when using X as the video output + * device.
modrm32 : modrm16); - if (x86->operand_size == 4) { - instr_binary = instr_binary_dword; - instr_read = instr_read_dword; - instr_write = instr_write_dword; - } else { - instr_binary = instr_binary_word; - instr_read = instr_read_word; - instr_write = instr_write_word; - } - #if DEBUG_INSTR >= 2 dump_x86_regs(x86); #endif - while (prefix
http://dosemu.sourceforge.net/stas/instr_mem6.diff

  
 index
[] A Byte of Apple [CT3232] A history of Apple computing from
[] Roots and Prefixes and Vocabulary Driller [LA1082] Two
http://www.wisegorilla.com/catalog.html

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