3965:
of 1111 (F). ILE RPG uses 1111 (F) for positive and 1101 (D) for negative. These match the EBCDIC zone for digits without a sign overpunch. In packed BCD, the number 127 is represented by 0001 0010 0111 1100 (127C) and −127 is represented by 0001 0010 0111 1101 (127D). Burroughs systems used 1101 (D) for negative, and any other value is considered a positive sign value (the processors will normalize a positive sign to 1100 (C)).
5607:
5665:
5566:
40:
8688:(bits 0 through 3). The high half-byte (bits 4 through 7) can be any value during addition and subtraction, but must be zero during multiplication and division. Packed BCD integers allow two BCD digits to be contained in one byte. Here, the digit in the high half-byte is more significant than the digit in the low half-byte. When operating on BCD integers in
3945:, i.e. with the more significant digit in the upper half of each byte, and with the leftmost byte (residing at the lowest memory address) containing the most significant digits of the packed decimal value. The lower nibble of the rightmost byte is usually used as the sign flag, although some unsigned representations lack a sign flag.
160:, is its more accurate representation and rounding of decimal quantities, as well as its ease of conversion into conventional human-readable representations. Its principal drawbacks are a slight increase in the complexity of the circuits needed to implement basic arithmetic as well as slightly less dense storage.
6216:
This representation allows rapid multiplication and division, but may require shifting by a power of 10 during addition and subtraction to align the decimal points. It is appropriate for applications with a fixed number of decimal places that do not then require this adjustment—particularly financial
4997:
If there are a different number of nibbles being added together (such as 1053 − 2), the number with the fewer digits must first be prefixed with zeros before taking the ten's complement or subtracting. So, with 1053 − 2, 2 would have to first be represented as 0002 in BCD, and the ten's complement of
3964:
Other allowed signs are 1010 (A) and 1110 (E) for positive and 1011 (B) for negative. IBM System/360 processors will use the 1010 (A) and 1011 (B) signs if the A bit is set in the PSW, for the ASCII-8 standard that never passed. Most implementations also provide unsigned BCD values with a sign nibble
8715:
form; they are distinguished from positive decimal integers only by the sign bit. The range of decimal integers that can be encoded in this format is −10 + 1 to 10 − 1. The decimal integer format exists in memory only. When a decimal integer is loaded in an x87 FPU data register, it is automatically
5845:
Many non-integral values, such as decimal 0.2, have an infinite place-value representation in binary (.001100110011...) but have a finite place-value in binary-coded decimal (0.0010). Consequently, a system based on binary-coded decimal representations of decimal fractions avoids errors representing
5779:
BCD is common in electronic systems where a numeric value is to be displayed, especially in systems consisting solely of digital logic, and not containing a microprocessor. By employing BCD, the manipulation of numerical data for display can be greatly simplified by treating each digit as a separate
4993:
Thus the result of the subtraction is 1001 1001 0010 0101 (−925). To confirm the result, note that the first digit is 9, which means negative. This seems to be correct since 357 − 432 should result in a negative number. The remaining nibbles are BCD, so 1001 0010 0101 is 925. The ten's complement of
4922:
10001 is the binary, not decimal, representation of the desired result, but the most significant 1 (the "carry") cannot fit in a 4-bit binary number. In BCD as in decimal, there cannot exist a value greater than 9 (1001) per digit. To correct this, 6 (0110) is added to the total, and then the result
7423:
for n = 4, or, in fact, with any set of ten code combinations which include all eight with an even (or all eight with an odd) number of "1's." The second and third rows of Table II list the average and peak decimal change per undetected single binary error, and have been derived using the equations
6208:
If errors in representation and computation are more important than the speed of conversion to and from display, a scaled binary representation may be used, which stores a decimal number as a binary-encoded integer and a binary-encoded signed decimal exponent. For example, 0.2 can be represented as
5787:
to build a metering circuit, for example. If the numeric quantity were stored and manipulated as pure binary, interfacing with such a display would require complex circuitry. Therefore, in cases where the calculations are relatively simple, working throughout with BCD can lead to an overall simpler
5292:
that can perform arithmetic directly on packed BCD data and convert between packed BCD data and other integer representations. The VAX's packed BCD format is compatible with that on IBM System/360 and IBM's later compatible processors. The MicroVAX and later VAX implementations dropped this ability
4986:
Since BCD is a form of decimal representation, several of the digit sums above are invalid. In the event that an invalid entry (any BCD digit greater than 1001) exists, 6 is added to generate a carry bit and cause the sum to become a valid entry. So, adding 6 to the invalid entries results in the
5791:
The same argument applies when hardware of this type uses an embedded microcontroller or other small processor. Often, representing numbers internally in BCD format results in smaller code, since a conversion from or to binary representation can be expensive on such limited processors. For these
4270:
For signed zoned decimal values, the rightmost (least significant) zone nibble holds the sign digit, which is the same set of values that are used for signed packed decimal numbers (see above). Thus a zoned decimal value encoded as the hex bytes F1 F2 D3 represents the signed decimal value −123:
4266:
numeric representations. Each decimal digit is stored in one byte, with the lower four bits encoding the digit in BCD form. The upper four bits, called the "zone" bits, are usually set to a fixed value so that the byte holds a character value corresponding to the digit. EBCDIC systems use a zone
5275:
processors. In these products, the BCD is usually zoned BCD (as in EBCDIC or ASCII), packed BCD (two decimal digits per byte), or "pure" BCD encoding (one decimal digit stored as BCD in the low four bits of each byte). All of these are used within hardware registers and processing units, and in
4915:
by first adding in binary, and then converting to BCD afterwards. Conversion of the simple sum of two digits can be done by adding 6 (that is, 16 − 10) when the five-bit result of adding a pair of digits has a value greater than 9. The reason for adding 6 is that there are 16 possible 4-bit BCD
8296:, for Special Summer Programs held in 1956 and 1957. The code Susskind actually presented in his work as "reading-type code" is shown as code type II here, whereas the type I code is a minor derivation with the two most significant bit columns swapped to better illustrate symmetries.)
8108:
4200:
representations for negative numbers offer an alternative approach to encoding the sign of packed (and other) BCD numbers. In this case, positive numbers always have a most significant digit between 0 and 4 (inclusive), while negative numbers are represented by the 10's complement of the
5875:
10 bits is 1.204). When packed so that three digits are encoded in ten bits, the storage overhead is greatly reduced, at the expense of an encoding that is unaligned with the 8-bit byte boundaries common on existing hardware, resulting in slower implementations on these
4158:
is made trivial, as no arithmetic operations are required. The extra storage requirements are usually offset by the need for the accuracy and compatibility with calculator or hand calculation that fixed-point decimal arithmetic provides. Denser packings of
5863:
require extra logic to cause them to wrap and generate a carry early. Also, 15 to 20 per cent more circuitry is needed for BCD add compared to pure binary. Multiplication requires the use of algorithms that are somewhat more complex than shift-mask-add (a
7471:
7469:
7467:
7465:
7463:
7461:
7459:
7457:
7455:
7453:
7451:
7999:
The cyclic code is advantageous mainly in the use of relay circuits, for then a sticky relay will not give a false state as it is delayed in going from one cyclic number to the next. There are many other cyclic codes that have this property.
5327:
There are tricks for implementing packed BCD and zoned decimal add–or–subtract operations using short but difficult to understand sequences of word-parallel logic and binary arithmetic operations. For example, the following code (written in
4228:
The decimal point is not actually stored in memory, as the packed BCD storage format does not provide for it. Its location is simply known to the compiler, and the generated code acts accordingly for the various arithmetic operations.
7401:. Convention Record of the I.R.E., 1954 National Convention, Part 4 - Electronic Computers and Information Theory. Session 19: Information Theory III - Speed and Computation. Stanford Research Institute, Stanford, California, USA:
4267:
value of 1111 (hex F); this yields bytes in the range F0 to F9 (hex), which are the EBCDIC codes for the characters "0" through "9". Similarly, ASCII systems use a zone value of 0011 (hex 3), giving character codes 30 to 39 (hex).
3907:(but formatting routines might replace or remove leading zeros). Packed BCD is more efficient in storage usage than unpacked BCD; encoding the same number (with the leading zero) in unpacked format would consume twice the storage.
4237:
If a decimal digit requires four bits, then three decimal digits require 12 bits. However, since 2 (1,024) is greater than 10 (1,000), if three decimal digits are encoded together, only 10 bits are needed. Two such encodings are
6659:
3948:
As an example, a 4-byte value consists of 8 nibbles, wherein the upper 7 nibbles store the digits of a 7-digit decimal value, and the lowest nibble indicates the sign of the decimal integer value. Standard sign values are 1100
4932:
This technique can be extended to adding multiple digits by adding in groups from right to left, propagating the second digit as a carry, always comparing the 5-bit result of each digit-pair sum to 9. Some CPUs provide a
4204:
As a result, this system allows for 32-bit packed BCD numbers to range from −50,000,000 to +49,999,999, and −1 is represented as 99999999. (As with two's complement binary numbers, the range is not symmetric about zero.)
7418:
The last column , labeled "Best," gives the maximum fraction possible with any code—namely 0.60—half again better than any conventional code. This extremal is reached with the ten heavily-marked vertices of the graph of
110:
BCD typically encodes two digits within a single byte by taking advantage of the fact that four bits are enough to represent the range 0 to 9. The precise four-bit encoding, however, may vary for technical reasons (e.g.
5229:
BCD) of the 10-digit word, with the "zone" in the left digit and the "digit" in the right digit. Input/output translation hardware converted between the internal digit pairs and the external standard 6-bit BCD codes.
5323:
In more recent computers such capabilities are almost always implemented in software rather than the CPU's instruction set, but BCD numeric data are still extremely common in commercial and financial applications.
4131:
Like character strings, the first byte of the packed decimal – that with the most significant two digits – is usually stored in the lowest address in memory, independent of the
8981:"Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); LTE; 5G; Numbering, addressing and identification (3GPP TS 23.003 version 16.8.0 Release 16)"
8627:
4976:
of 432, and then adding one. So, 999 − 432 = 567, and 567 + 1 = 568. By preceding 568 in BCD by the negative sign code, the number −432 can be represented. So, −432 in signed BCD is 1001 0101 0110 1000.
7436:= |i − j| i,j = 0, 1, … 9. Again, the "Best" arrangement possible (the same for average and peak), one of which is shown in Fig. 4, is substantially better than the conventional codes. Fig. 4
6596:
8275:
5856:
Practical existing implementations of BCD are typically slower than operations on binary representations, especially on embedded systems, due to limited processor support for native BCD operations.
7984:
8270:
Susskind, Alfred Kriss; Ward, John Erwin (1958-03-28) . "III.F. Unit-Distance Codes / VI.E.2. Reflected Binary Codes". Written at
Cambridge, Massachusetts, USA. In Susskind, Alfred Kriss (ed.).
4219:
For example, a packed decimal value encoded with the bytes 12 34 56 7C represents the fixed-point value +1,234.567 when the implied decimal point is located between the fourth and fifth digits:
5293:
from the CPU but retained code compatibility with earlier machines by implementing the missing instructions in an operating system-supplied software library. This is invoked automatically via
4216:
decimal numbers are supported by some programming languages (such as COBOL and PL/I). These languages allow the programmer to specify an implicit decimal point in front of one of the digits.
4125:
For example, a 4-byte (32-bit) word can hold seven decimal digits plus a sign and can represent values ranging from ±9,999,999. Thus the number −1,234,567 is 7 digits wide and is encoded as:
5160:. This allows the circuitry to convert between the punched card format and the internal storage format to be very simple with only a few special cases. One important special case is digit
4170:
programming language as the "COMPUTATIONAL-3" (an IBM extension adopted by many other compiler vendors) or "PACKED-DECIMAL" (part of the 1985 COBOL standard) data type. It is supported in
6458:
Code states (shown in black) outside the decimal range 0–9 indicate additional states of the non-BCD variant of the code. In the BCD code variant discussed here, they are pseudo-tetrades.
4895:
For example, given a six-byte signed zoned decimal value with an implied decimal point to the right of the fourth digit, the hex bytes F1 F2 F7 F9 F5 C0 represent the value +1,279.50:
4892:
Some languages (such as COBOL and PL/I) directly support fixed-point zoned decimal values, assigning an implicit decimal point at some location between the decimal digits of a number.
7406:
6236:
provide
Boolean transformations for converting groups of three BCD-encoded digits to and from 10-bit values that can be efficiently encoded in hardware with only 2 or 3 gate delays.
7918:; Rotolo, Louis S.; Wilson, James Bruce (1960). "Part 4. Logical Design of Digital-Computer Circuitry; Chapter 15. Serial Arithmetic Operations; Chapter 15-7. Additional Topics".
9070:
8167:
6924:
Wörterbuch der
Elektronik, Datentechnik und Telekommunikation / Dictionary of Electronics, Computing and Telecommunications: Teil 1: Deutsch-Englisch / Part 1: German-English
8695:
data registers, BCD values are packed in an 80-bit format and referred to as decimal integers. In this format, the first 9 bytes hold 18 BCD digits, 2 digits per byte. The
7473:(11 pages) (NB. Besides the combinatorial set of 4-bit BCD "minimum-confusion codes for decimals", of which the author illustrates only one explicitly (here reproduced as
7371:(xii+327+3 pages) (NB. The German edition of volume I was published in 1969, 1971, two editions in 1972, and 1975. Volume II was published in 1970, 1972, 1973, and 1975.)
8995:
8955:
8103:
6321:
8665:
6967:
9452:
7578:
3941:
represents a decimal digit. Packed BCD has been in use since at least the 1960s and is implemented in all IBM mainframe hardware since then. Most implementations are
7477:) in form of a 4-bit graph, the author also shows a 16-state 4-bit "binary code for analog data" in form of a code table, which, however, is not discussed here. The
3882:
Hence the numerical range for one unpacked BCD byte is zero through nine inclusive, whereas the range for one packed BCD byte is zero through ninety-nine inclusive.
8717:
7696:
6336:
5901:
BCD format, typically with two or three digits for the (decimal) exponent. The extra bits of the sign digit may be used to indicate special numeric values, such as
491:
8684:, the BCD values can be unpacked (one BCD digit per byte) or packed (two BCD digits per byte). The value of an unpacked BCD integer is the binary value of the low
230:(NBCD), where each decimal digit is represented by its corresponding four-bit binary value, as shown in the following table. This is also called "8421" encoding.
8618:
7845:
5203:"zone punches" as in the 1400 series. Input/output translation hardware converted between the internal digit pairs and the external standard 6-bit BCD codes.
6638:
6585:
4250:(DPD). The latter has the advantage that subsets of the encoding encode two digits in the optimal seven bits and one digit in four bits, as in regular BCD.
8845:
7919:
5191:
are encoded using digit pairs, with the "zone" in the even-addressed digit and the "digit" in the odd-addressed digit, the "zone" being related to the
4174:
as "FIXED DECIMAL". Beside the IBM System/360 and later compatible mainframes, packed BCD is implemented in the native instruction set of the original
7835:
9125:
3885:
To represent numbers larger than the range of a single byte any number of contiguous bytes may be used. For example, to represent the decimal number
8892:
8367:
8229:
8172:
6197:
214:
formats are still important and continue to be used in financial, commercial, and industrial computing, where the subtle conversion and fractional
9104:
6193:
6623:
Klar, Rainer (1970-02-01). "1.5.3 Konvertierung binär verschlüsselter
Dezimalzahlen" [1.5.3 Conversion of binary coded decimal numbers].
6643:
441:, and is the most common encoding. Others include the so-called "4221" and "7421" encoding – named after the weighting used for the bits – and "
9254:
8886:"Signalling Protocols and Switching (SPS) Guidelines for using Abstract Syntax Notation One (ASN.1) in telecommunication application protocols"
8181:
7264:
9020:
7812:
applications. Avoiding the all-zero code pattern allows for loop self-testing and to use the data lines for uninterrupted power distribution.)
3445:−1"), two of the weights are negative. Both ASCII and EBCDIC character codes for the digits, which are examples of zoned BCD, are also shown.
9111:
8853:
8293:
7676:
7637:
Borucki, Lorenz; Dittmann, Joachim (1971) . "2.3 Gebräuchliche Codes in der digitalen Meßtechnik". Written at
Krefeld / Karlsruhe, Germany.
7527:
7396:
7280:
7089:
6294:
store the date and time in BCD. This led to a worldwide outage of the console on 1 March 2010. The last two digits of the year stored as BCD
5624:
5579:
5019:
226:
BCD takes advantage of the fact that any one decimal numeral can be represented by a four-bit pattern. An obvious way of encoding digits is
8779:
6680:
5792:
applications, some small processors feature dedicated arithmetic modes, which assist when writing routines that manipulate BCD quantities.
6844:
4929:
The two nibbles of the result, 0001 and 0111, correspond to the digits "1" and "7". This yields "17" in BCD, which is the correct result.
8814:
6287:
handheld computer's manufacturer-supplied software also uses BCD to implement floating point; later Psion models use binary exclusively.
9186:
9157:
7574:
8941:"Non-Access-Stratum (NAS) protocol for 5G System (5GS); Stage 3. (3GPP TS 24.501 version 16.10.0 Release 16) TS 24.501 release 16.10.0"
6932:
6898:
6852:
5783:
This matches much more closely the physical reality of display hardware—a designer might choose to use a series of separate identical
8153:(3 pages) (NB. This paper was prepared for presentation at the AIEE Winter General Meeting, New York, USA, 1956-01-30 to 1956-02-03.)
9318:
9248:
9198:
9177:
8435:
7658:
7364:
7290:
6813:
6781:
6748:
6653:
5929:
programming language, for example, supports five zoned decimal formats, with each one encoding the numeric sign in a different way:
5766:
5748:
5646:
5593:
4969:. The remaining 14 combinations are invalid signs. To illustrate signed BCD subtraction, consider the following problem: 357 − 432.
3846:: Each decimal digit is encoded into one byte, with four bits representing the number and the remaining bits having no significance.
8554:
8205:
7541:(xviii+506 pages) (NB. The French 1967 original book was named "Techniques Booléennes et Calculateurs Arithmétiques", published by
5729:
5686:
5679:
5297:
when the defunct instructions are encountered, so that programs using them can execute without modification on the newer machines.
8723:
6331:
The decision noted that a patent "would wholly pre-empt the mathematical formula and in practical effect would be a patent on the
7978:
7936:
6719:
6676:
6295:
6147:
with swapped nibbles in each byte. Bits, octets and digits indexed from 1, bits from the right, digits and octets from the left.
5701:
7021:
Evans, David
Silvester (March 1961). "Chapter Four: Ancillary Equipment: Output-drive and parity-check relays for digitizers".
8980:
8940:
8141:
5838:
involves relatively complex logic that spans digits, and for large numbers, no linear-time conversion algorithm is known (see
8652:
8427:
8315:
8289:
7928:
7876:
5628:
8568:
8340:
7565:
7254:
5871:
Standard BCD requires four bits per digit, roughly 20 per cent more space than a binary encoding (the ratio of 4 bits to log
5708:
8505:
8484:
8411:
5946:
4990:
1001 1000 1011 1111 9 8 11 15 + 0000 0000 0110 0110 0 0 6 6 = 1001 1001 0010 0101 9 9 2 5
4983:
0000 0011 0101 0111 0 3 5 7 + 1001 0101 0110 1000 9 5 6 8 = 1001 1000 1011 1111 9 8 11 15
4179:
172:
6702:
Klar, Rainer (1989) . "1.4 Codes: Binär verschlüsselte
Dezimalzahlen" [1.4 Codes: Binary coded decimal numbers].
9442:
9330:
Reversible
Implementation of Densely-Packed-Decimal Converter to and from Binary-Coded-Decimal Format Using in IEEE-754R
8593:
8085:
8061:
7885:
7760:
7705:
6548:
6494:
5245:
data type is also implemented, providing machine instructions that perform arithmetic directly on packed decimal data.
5241:
to 8-bit EBCDIC, allowing the addition of many more characters (e.g., lowercase letters). A variable length packed BCD
8035:
7166:), containing all eight states with an even count of 1s, so that inversion of the most-significant bits will create a
5715:
51:
to express binary values. In this clock, each column of LEDs shows a binary-coded decimal numeral of the traditional
7826:
3901:
Here, the most significant nibble of the most significant byte has been encoded as zero, so the number is stored as
9457:
8909:
8279:
8185:
7259:. Philips Technical Library (PTL) / Macmillan Education (Reprint of 1st English ed.). Eindhoven, Netherlands:
6711:
6634:
5675:
5617:
7889:
6298:
as 16 causing an error in the unit's date, rendering most functions inoperable. This has been referred to as the
5697:
5585:
5320:
that can be loaded into and stored from the floating point registers, from where computations can be performed.
9447:
9149:
8810:
8681:
7260:
6348:
5329:
4187:
4160:
31:
9313:. Proceedings of the 2006 International Conference on Computer Design (CDES'06). CSREA Press. pp. 64–69.
6217:
applications where 2 or 4 digits after the decimal point are usually enough. Indeed, this is almost a form of
9422:
8696:
8283:
7822:
7032:
6528:
5886:
195:
9095:
8700:
8519:
7607:
7353:
Digitale
Elektronik in der Meßtechnik und Datenverarbeitung: Theoretische Grundlagen und Schaltungstechnik
6955:
6507:
6433:
6380:
6359:
6237:
6218:
4246:
4213:
207:
8885:
7158:), containing all eight available binary states with an odd count of 1s, is a slight modification of the
9074:
7356:
7053:
6532:
6276:
5914:
5865:
5823:
5784:
5305:
556: Comment
7028:
6471:
is one of several 2 4 2 1 codes. It is also known as 2* 4 2 1 code.
6429:
6370:
6233:
4240:
7355:. Philips Fachbücher (in German). Vol. I (improved and extended 5th ed.). Hamburg, Germany:
4090:
is, there is always an even number of nibbles because each byte has two of them. Therefore, a word of
9169:
9065:
8109:
Transactions of the
American Institute of Electrical Engineers, Part I: Communication and Electronics
7915:
7205:
7081:
6437:
6353:
6312:
5906:
5788:
system than converting to and from binary. Most pocket calculators do all their calculations in BCD.
5222:
4973:
4972:
In signed BCD, 357 is 0000 0011 0101 0111. The ten's complement of 432 can be obtained by taking the
4163:
exist which avoid the storage penalty and also need no arithmetic operations for common conversions.
194:
is not as widely used as in the past, and is unavailable or limited in newer instruction sets (e.g.,
48:
9273:
6272:
motherboard provided the time encoded in BCD. This form is easily converted into ASCII for display.
5812:
at a decimal digit boundary is simpler. Addition and subtraction in decimal do not require rounding.
9221:
9031:
8712:
8692:
8423:
7194:(May 1969). "II.15. Struktur: Informationsdarstellung im Automaten". Written at Jena, Germany. In
7141:
6417:
6280:
6189:
5910:
5860:
5046:
5042:
5029:
codes that represented numbers, upper-case letters and special characters. Some variation of BCDIC
4937:
to facilitate BCD arithmetic adjustments following binary addition and subtraction operations. The
4197:
4191:
4140:
120:
6804:. Taschenbuch der Nachrichtenverarbeitung (in German). Vol. 2 (3 ed.). Berlin, Germany:
6416:
In a standard packed 4-bit representation, there are 16 states (four bits for each digit) with 10
5722:
8746:
8392:
8332:
8133:
7805:
7733:
7717:
6773:
6524:
6317:
5294:
3953:
C) for positive (+) and 1101 (D) for negative (−). This convention comes from the zone field for
2804:
92:
9269:(Also: ACM SIGPLAN Notices, Vol. 22 #10, IEEE Computer Society Press #87CH2440-6, October 1987)
8768:
8708:
8703:
is contained in the upper half-byte of byte 9. The most significant bit of byte 10 contains the
5868:, requiring binary shifts and adds or the equivalent, per-digit or group of digits is required).
2674:
8803:
7132:
Berger, Erich R. (1962). "1.3.3. Die Codierung von Zahlen". Written at Karlsruhe, Germany. In
9397:
9371:
9341:
9314:
9291:. IEEE Seventh Annual International Phoenix Conference on Computers and Communications, 1988.
9244:
9194:
9173:
9117:
9107:
8849:
8661:
8441:
8431:
8419:
8384:
8288:(x+416+2 pages) (NB. The contents of the book was originally prepared by staff members of the
8246:
8197:
8125:
7958:
7950:
7942:
7932:
7893:
7725:
7672:
7664:
7654:
7542:
7523:
7360:
7308:(270 pages) (NB. This is based on a translation of volume I of the two-volume German edition.)
7276:
7191:
7145:
7133:
7085:
6997:
6979:
6928:
6894:
6848:
6819:
6809:
6797:
6777:
6744:
6715:
6710:]. Sammlung Göschen (in German). Vol. 2050 (4th reworked ed.). Berlin, Germany:
6672:
6649:
6511:
6392:
6299:
6261:
5890:
5317:
3918:
2421:
157:
8839:
7682:
7075:
6624:
6068:, an expansion to BCD where the remaining (unused) bit combinations are used to add specific
5052:
The IBM 1400 series are character-addressable machines, each location being six bits labeled
3852:: Two decimal digits are encoded into a single byte, with one digit in the least significant
9236:
8734:
8376:
8324:
8238:
8189:
8117:
7974:
7709:
7646:
7515:
7432:. The confusion index for decimals using the criterion of "decimal change," is taken to be c
7392:
7286:
7268:
7204:. Elektronisches Rechnen und Regeln (in German). Vol. 5 (1 ed.). Berlin, Germany:
6886:
6375:
6185:
4183:
4087:
3958:
3914:
2739:
164:
6960:
Digitale Rechenanlagen - Grundlagen / Schaltungstechnik / Arbeitsweise / Betriebssicherheit
6244:, except the lead digit, for one of the two alternative decimal encodings specified in the
5300:
Many processors have hardware support for BCD-encoded integer arithmetic. For example, the
464:
8654:
Intel 64 and IA-32 Architectures Software Developer's Manual, Volume 1: Basic Architecture
7966:
7642:
7547:
7511:
7507:
6971:
6882:
6805:
6284:
5894:
5289:
5038:
4966:
4962:
4934:
4147:
2548:
215:
180:
84:
9077:
8620:
Intel 64 and IA-32 Architectures Software Developer's Manual Volume 1: Basic Architecture
6633:]. Sammlung Göschen (in German). Vol. 1241/1241a (1 ed.). Berlin, Germany:
8550:
8274:. Technology Books in Science and Engineering. Vol. 1 (3 ed.). New York, USA:
7927:. McGraw-Hill Electrical and Electronic Engineering Series (1 ed.). New York, USA:
7694:
White, Garland S. (October 1953). "Coded Decimal Number Systems for Digital Computers".
5815:
The alignment of two decimal numbers (for example 1.3 + 27.08) is a simple, exact shift.
4146:
While packed BCD does not make optimal use of storage (using about 20% more memory than
9213:
9162:
7782:
7506:. Translated by Preston, Alan; Summer, Arthur (1st English ed.). Berlin, Germany:
6490:
6425:
6421:
6229:
5898:
5827:
5264:
3473:
2355:
211:
168:
133:
8720:. All decimal integers are exactly representable in double extended-precision format.
7612:
Telefunken-Zeitung (TZ) - Technisch-Wissenschaftliche Mitteilungen der Telefunken GMBH
7195:
4916:
values (since 2 = 16), but only 10 values are valid (0000 through 1001). For example:
9436:
9193:(1 (reprint) ed.). Malabar, Florida, USA: Robert E. Krieger Publishing Company.
8396:
8227:
Lippel, Bernhard (December 1955). "A Decimal Code for Analog-to-Digital Conversion".
8003:
7801:
7167:
6386:
6291:
6245:
5839:
5835:
3910:
3857:
1979:
1114:
1048:
129:
76:
8869:
8804:"Decimal CORDIC Rotation based on Selection by Rounding: Algorithm and Architecture"
8336:
8137:
7737:
5818:
Conversion to a character form or for display (e.g., to a text-based format such as
4945:
and the CPUs of the x86 family provide the opcode DAA (Decimal Adjust Accumulator).
3921:
are used to convert a numeral to its equivalent bit pattern or reverse the process.
17:
8738:
6802:
Taschenbuch der Informatik - Band II - Struktur und Programmierung von EDV-Systemen
6560:
6552:
5332:) computes an unsigned 8-digit packed BCD addition using 32-bit binary operations:
5101:
5025:
4961:. To represent the sign of a number in BCD, the number 0000 is used to represent a
4098:)−1 decimal digits, which is always an odd number of digits. A decimal number with
3898:
Decimal: 0 1 2 3 4 5 Binary : 0000 0001 0010 0011 0100 0101
140:
44:
9345:
9311:
Modified Carry Look Ahead BCD Adder With CMOS and Reversible Logic Implementation
8572:
8310:
7871:
7501:
7296:
7199:
7022:
6922:
6876:
6838:
6480:
The Jump-at-8 code is also known as unsymmetrical 2 4 2 1 code.
5885:
Various BCD implementations exist that employ other representations for numbers.
5175:
The memory of the IBM 1620 is organized into 6-bit addressable digits, the usual
4980:
Now that both numbers are represented in signed BCD, they can be added together:
106:
BCD usually implies a full byte for each digit (often including a sign), whereas
9401:
7519:
6241:
6222:
5664:
5606:
3950:
2230:
2044:
64:
52:
8363:"Arithmetic Operations for Digital Computers Using a Modified Reflected Binary"
8362:
7931:(printer: The Maple Press Company, York, Pennsylvania, USA). pp. 517–518.
7713:
6704:
Digitale Rechenautomaten – Eine Einführung in die Struktur von Computerhardware
9375:
9217:
8533:
7962:
7840:
7650:
7619:
7272:
7057:
7049:
6890:
6468:
5256:, packed BCD is supported in software by IBM's Commercial Subroutine Package.
5234:
4954:
4938:
4133:
3942:
3892:
3482:
3051:
982:
8586:
8388:
8380:
8250:
8242:
8201:
8193:
8129:
8121:
7946:
7897:
7752:
7729:
7721:
7024:
Digital Data: Their derivation and reduction for analysis and process control
4926:
10001 + 0110 = 00010111 => 0001 0111 17 + 6 = 23 1 7
4128:
0001 0010 0011 0100 0101 0110 0111 1101 1 2 3 4 5 6 7 −
3839:, it is possible to use one of the following methods to encode a BCD number:
9328:
Kaivani, A.; Alhosseini, A. Zaker; Gorgin, S.; Fazlali, M. (December 2006).
8328:
8082:
Some Recently Developed Digital Devices for Encoding the Rotations of Shafts
7809:
7610:(ed.). "Ermittlung des Codes und der logischen Schaltung einer Zähldekade".
6332:
6283:
processor has a BCD mode for the addition and subtraction instructions. The
6269:
6069:
5272:
4942:
4880:
203:
128:
typically needed to hold them is also known as a tetrade) while the unused,
60:
8027:
7970:
6708:
Digital Computers – An Introduction into the structure of computer hardware
3860:) and the other numeral in the most significant nibble (bits 4 through 7).
39:
9206:
8704:
8005:(xxiv+835+1 pages) (NB. Ledley classified the described cyclic code as a
6547:
In a similar fashion, multiple characters were often packed into machine
5902:
5809:
5253:
5249:
5215:
5211:
5207:
5034:
4912:
3870:
using unpacked BCD results in the following binary pattern of two bytes:
3538:
3532:
3477:
3417:
digits from 0 to 9 in various BCD encoding systems. In the headers, the "
442:
112:
9240:
8916:
8058:
A Cyclic Progressive Binary-coded-decimal System of Representing Numbers
7532:. License No. 202-100/542/73. Order No. 7617470(6047) ES 19 B 1 / 20 K 3
6671:(205 pages) (NB. A 2019 reprint of the first edition is available under
218:
that are inherent in binary floating point formats cannot be tolerated.
91:, usually four or eight. Sometimes, special bit patterns are used for a
8769:"A Cordic-based Architecture for High Performance Decimal Calculations"
6365:
5631: in this section. Unsourced material may be challenged and removed.
5260:
5084:
are zero and the digit value represented by standard 4-bit BCD in bits
4958:
4155:
3526:
3520:
3414:
80:
8116:(2). Bell Telephone Laboratories, Whippany, New Jersey, USA: 120–122.
5846:
and calculating such values. This is useful in financial calculations.
5100:
are derived simply from the "12", "11", and "0" "zone punches" in the
8685:
7402:
6556:
6325:
6265:
5952:
5268:
3954:
3938:
3853:
3565:
125:
9332:. 9th International Conference on Information Technology (ICIT'06).
7500:
Chinal, Jean P. (January 1973). "Codes". Written at Paris, France.
7208:. p. 161. License no. 202-100/416/69. Order no. 4666 ES 20 K 3.
4143:
integer can represent values from −2,147,483,648 to +2,147,483,647.
3433:" indicates the weight of each bit. In the fifth column ("BCD 8
167:, and is implemented in the instruction set of machines such as the
7606:
Stopper, Herbert (March 1960). Written at Litzelstetten, Germany.
9427:
9287:
Shirazi, Behrooz; Yun, David Y. Y.; Zhang, Chang N. (March 1988).
8068:
A Cyclic-Coded Binary-Coded-Decimal System of Representing Numbers
7001:
6592:
5926:
5313:
5012:
4167:
4151:
3558:
184:
38:
7668:
7395:(June 1954). "IV. Examples A. Binary Codes for Decimals, n = 4".
5840:
Binary number § Conversion to and from other numeral systems
9333:
9292:
9121:
8991:
8987:
8951:
8947:
8775:
8707:(0 = positive and 1 = negative; bits 0 through 6 of byte 10 are
8534:"IBM 1401/1440/1460/1410/7010 Character Code Chart in BCD Order"
8445:
7954:
7149:
6983:
6823:
6257:
6073:
6061:
5301:
4171:
3917:
operations are used to pack or unpack a packed BCD digit. Other
3836:
99:
9205:(NB. At least some batches of the Krieger reprint edition were
6964:
Digital computers - Basics / Circuits / Operation / Reliability
6726:
Die nicht erlaubten 0/1-Muster nennt man auch Pseudodezimalen.
5259:
Today, BCD data is still heavily used in IBM databases such as
3873:
Decimal: 9 1 Binary : 0000 1001 0000 0001
9409:
9383:
9346:"Bibliography of material on Decimal Arithmetic – by category"
8689:
8465:
8168:"Unit-Distance Binary-Decimal Codes for Two-Track Commutation"
7201:
Digitale Automaten – Theorie, Struktur, Technik, Programmieren
6975:
5925:
Signed decimal values may be represented in several ways. The
5819:
5658:
5600:
5559:
5309:
5285:
4259:
4175:
199:
176:
88:
9423:
Convert BCD to decimal, binary and hexadecimal and vice versa
8276:
Technology Press of the Massachusetts Institute of Technology
7198:; Kämmerer, Wilhelm; Schröder, Kurz; Winkler, Helmut (eds.).
6743:(in German) (2 ed.). R. Oldenbourg Verlag München Wien.
4879:
Note: These characters vary depending on the local character
3876:
In packed BCD, the same number would fit into a single byte:
118:
The ten states representing a BCD digit are sometimes called
6328:
for converting BCD-encoded numbers to binary on a computer.
5826:) is a simple per-digit mapping, and can be done in linear (
8871:
3GPP TS 29.002: Mobile Application Part (MAP) specification
7872:"Can You Take Advantage of the Cyclic Binary-Decimal Code?"
6335:
itself". This was a landmark judgement that determined the
5132:, and a "0 zone" (a 0 punch combined with any others) set
4953:
Subtraction is done by adding the ten's complement of the
8104:"Cyclic Decimal Codes for Analogue to Digital Converters"
7140:(in German) (1 ed.). Berlin / Göttingen / New York:
4994:
925 is 1000 − 925 = 75, so the calculated answer is −75.
102:-oriented systems (i.e. most modern computers), the term
9309:
Thapliyal, Himanshu; Arabnia, Hamid R. (November 2006).
9289:
VLSI designs for redundant binary-coded decimal addition
8874:(Technical report). 2013. sec. 17.7.8 Common data types.
7641:(in German) (2 ed.). Berlin / Heidelberg, Germany:
7632:
7630:
6240:(DPD) is a similar scheme that is used for most of the
30:"BCD code" redirects here. For BCD character sets, see
8699:
is contained in the lower half-byte of byte 0 and the
8664:. 2020-05-27 . pp. 3–2, 4-9–4-11 . 253665-072US.
8021:
8019:
8017:
8015:
7888:, a division of Dun-Donnelley Publishing Corporation,
6134:
Used as filler when there is an odd number of digits
467:
7804:
only in the encoding of state 0 to make it a cyclic
7567:
Military Handbook: Encoders - Shaft Angle To Digital
7481:
shown here is a modification of code I discussed by
6800:; Weber, Wolfgang; Heinemann, Traute, eds. (1974) .
8711:bits). Negative decimal integers are not stored in
8097:
8095:
6389:, an algorithm for converting binary numbers to BCD
5033:is used in most early IBM computers, including the
458:
454:
450:
446:
9161:
8910:"XOM Mobile Application Part (XMAP) Specification"
7253:Dokter, Folkert; Steinhauer, Jürgen (1973-06-18).
7127:
7125:
7123:
7121:
6412:
6410:
6408:
6072:characters, with digits similar to those found in
485:
8496:
8494:
7119:
7117:
7115:
7113:
7111:
7109:
7107:
7105:
7103:
7101:
6424:, whereas in more densely packed schemes such as
6279:use a BCD format for floating point numbers. The
5994:Sign nibble in the first (most significant) byte
5974:Sign nibble in the last (least significant) byte
9222:"Superoptimizer: A look at the smallest program"
8265:
8263:
8261:
8161:
8159:
7785:[Continuous loop code]. 1.02 (in German)
7186:
7184:
7182:
7180:
7178:
7176:
6837:Tietze, Ulrich; Schenk, Christoph (2012-12-06).
9103:. The Systems Programming Series (1 ed.).
8718:double-extended-precision floating-point format
8080:Petherick, Edward John; Hopkins, A. J. (1958).
7697:Proceedings of the Institute of Radio Engineers
7601:
7599:
7593:(NB. Supersedes MIL-HDBK-231(AS) (1970-07-01).)
7346:
7344:
7342:
7340:
7338:
7336:
7334:
7248:
7246:
7244:
7242:
7240:
7238:
7236:
6543:
6541:
5859:Some operations are more complex to implement.
95:or other indications (e.g. error or overflow).
9402:"A Summary of Densely Packed Decimal encoding"
7910:
7908:
7495:
7493:
7491:
7332:
7330:
7328:
7326:
7324:
7322:
7320:
7318:
7316:
7314:
7234:
7232:
7230:
7228:
7226:
7224:
7222:
7220:
7218:
7216:
6770:Introduction to digital information processing
5156:in the punched card, was encoded in memory as
5023:(BCDIC, sometimes just called BCD), for 6-bit
9097:Coded Character Sets, History and Development
8272:Notes on Analog-Digital Conversion Techniques
7398:Optimized Data Encoding for Digital Computers
7387:
7385:
7383:
7381:
7379:
7377:
7351:Dokter, Folkert; Steinhauer, Jürgen (1975) .
7060:of the resulting 5-bit code is also known as
6927:. Vol. 1 (2 ed.). Springer-Verlag.
4190:line of mainframes (descended from the 1950s
4186:mainframes, and is the native format for the
8:
9376:"A Summary of Chen-Ho Decimal Data encoding"
8304:
8302:
7795:
6766:Einführung in die digitale Datenverarbeitung
6741:Lexikon der Informatik und Datenverarbeitung
6264:stores the date and time in BCD because the
8846:Tata McGraw-Hill Publishing Company Limited
7560:
7558:
7210:(NB. A second edition 1973 exists as well.)
6697:
6695:
6693:
6618:
6616:
6514:code or Watts reflected decimal (WRD) code.
5594:Learn how and when to remove these messages
3895:format, a program would encode as follows:
3879:Decimal: 9 1 Binary : 1001 0001
3864:As an example, encoding the decimal number
156:BCD's main virtue, in comparison to binary
9146:Arithmetic Operations in Digital Computers
8311:"A New Representation for Decimal Numbers"
8286:pp. 3-7–3-8 , 3-10–3-16 , 6-65–6-60 .
6626:Digitale Rechenautomaten – Eine Einführung
6454:
6452:
6450:
6448:
6446:
6440:in 1024 states (10 bits for three digits).
6268:real-time clock chip used in the original
4150:to store the same numbers), conversion to
3835:As most computers deal with data in 8-bit
9168:(1 ed.). Binghamton, New York, USA:
7836:Bell Telephone Laboratories, Incorporated
5767:Learn how and when to remove this message
5749:Learn how and when to remove this message
5647:Learn how and when to remove this message
466:
8368:IRE Transactions on Electronic Computers
8292:, Department of Electrical Engineering,
8230:IRE Transactions on Electronic Computers
8188:, Philadelphia, Pennsylvania, USA: 139.
8173:IRE Transactions on Electronic Computers
8084:(Technical Note MS21). Farnborough, UK:
8066:(4 pages) (NB. Sometimes referred to as
8060:(Technical Note MS15). Farnborough, UK:
7921:Digital Computer and Control Engineering
7800:(English: "loop code"). It differs from
6436:encodings there are fewer—e.g., only 24
6337:patentability of software and algorithms
6078:
5931:
4919:1001 + 1000 = 10001 9 + 8 = 17
4281:
3967:
3447:
495:
232:
9453:Non-standard positional numeral systems
9105:Addison-Wesley Publishing Company, Inc.
8166:Tompkins, Howard E. (September 1956) .
8056:Petherick, Edward John (October 1953).
7138:Taschenbuch der Nachrichtenverarbeitung
6576:
6404:
5144:in the punched card format, is encoded
429:This scheme can also be referred to as
8462:IBM System/370 Principles of Operation
8182:Moore School of Electrical Engineering
7759:. 2019-05-01 . Section 2.4 5211 Code.
7482:
6639:G. J. Göschen'sche Verlagsbuchhandlung
5685:Please improve this section by adding
5382:// unsigned 32-bit intermediate values
4154:, EBCDIC, or the various encodings of
453:in 4221 (two encodings are possible),
9021:"Timer Counter Circuits in an IBM PC"
8416:Microprocessors - A Programmer's View
7159:
6845:Springer Science & Business Media
6057:Telephony binary-coded decimal (TBCD)
5318:unique 18-digit (ten-byte) BCD format
5221:are encoded using digit pairs (using
5020:Binary-Coded Decimal Interchange Code
4278:EBCDIC zoned decimal conversion table
1241:Jump-at-8 (2 4 2 1)
1179:Jump-at-2 (2 4 2 1)
238:
235:
7:
7783:"Unterbrechungsfreier Schleifencode"
7639:Digitale Meßtechnik: Eine Einführung
6684:
6143:The mentioned 3GPP document defines
5629:adding citations to reliable sources
5120:punches. A "12 zone" punch set both
497:4-bit BCD codes and pseudo-tetrades
87:is represented by a fixed number of
27:System of digitally encoding numbers
9229:ACM SIGOPS Operating Systems Review
8651:"4.7 BCD and packed BCD integers".
8460:"Chapter 8: Decimal Instructions".
7870:Glixon, Harry Robert (March 1957).
7575:United States Department of Defense
7438:Minimum-confusion code for decimals
7265:N. V. Philips' Gloeilampenfabrieken
7077:Principles of Modern Digital Design
6631:Digital Computers – An Introduction
6188:to send dialed numbers, as well as
5806:Scaling by a power of 10 is simple.
4898:F1 F2 F7 F9 F5 C0 1 2 7 9. 5 +0
8680:When operating on BCD integers in
8626:. Intel. March 2013. Section 4.7.
8479:"Chapter 3: Data Representation".
8361:Lucal, Harold M. (December 1959).
8309:Yuen, Chun-Kwong (December 1977).
7503:Design Methods for Digital Systems
6903:. 9783642876639, 978-3-642-87664-6
5284:The Digital Equipment Corporation
4998:0002 would have to be calculated.
4965:, and 1001 is used to represent a
4258:Some implementations, for example
25:
9144:Richards, Richard Kohler (1955).
9131:from the original on May 26, 2016
7794:(NB. The author called this code
7781:Paul, Matthias R. (1995-08-10) .
7753:"Different Types of Binary Codes"
6921:Ferretti, Vittorio (2013-03-13).
5575:This section has multiple issues.
5092:. For most other characters bits
1674:White (5 2 1 1)
457:in 7421, while in Excess-3 it is
445:". For example, the BCD digit 6,
8898:from the original on 2013-12-04.
8749:, Department of Computer Science
8557:from the original on 2018-05-08.
8102:O'Brien, Joseph A. (May 1956) .
8007:cyclic decimal-coded binary code
6966:] (in German) (2 ed.).
5897:, and others typically employ a
5663:
5605:
5564:
5421:// sum without carry propagation
4086:No matter how many bytes wide a
2929:6 3 −2 −1 (II)
859:8 4 2 1 (XS-0)
9260:from the original on 2017-07-04
9001:from the original on 2022-02-26
8961:from the original on 2022-02-17
8841:Introduction to Microprocessors
8820:from the original on 2022-10-09
8785:from the original on 2010-01-05
8671:from the original on 2020-08-06
8633:from the original on 2013-04-02
8599:from the original on 2023-11-20
8343:from the original on 2020-08-08
8038:from the original on 2018-07-16
7990:from the original on 2021-02-19
7851:from the original on 2020-08-05
7763:from the original on 2020-05-18
7584:from the original on 2020-07-25
7409:from the original on 2020-07-03
6739:Schneider, Hans-Jochen (1986).
6662:from the original on 2020-04-18
6602:from the original on 2022-10-09
6324:'s decision that had allowed a
5616:needs additional citations for
5583:or discuss these issues on the
5187:, an odd parity check bit. BCD
4201:corresponding positive number.
4166:Packed BCD is supported in the
3413:The following table represents
2868:6 3 −2 −1 (I)
9209:with defective pages 115–146.)
9094:Mackenzie, Charles E. (1980).
8428:McGraw-Hill Publishing Company
8412:Dewar, Robert Berriedale Keith
8316:IEEE Transactions on Computers
7929:McGraw-Hill Book Company, Inc.
6875:Kowalski, Emil (2013-03-08) .
6184:This format is used in modern
6034:Separate sign character byte (
6010:Separate sign character byte (
5834:)) time. Conversion from pure
5060:plus an odd parity check bit (
1367:4 2 2 1 (II)
1:
9302:Fundamentals of Digital Logic
8587:"The 68000's Instruction Set"
8506:Digital Equipment Corporation
8485:Digital Equipment Corporation
8140:. Paper 56-21. Archived from
7577:. 1991-09-30. MIL-HDBK-231A.
7478:
7155:
5687:secondary or tertiary sources
4180:Digital Equipment Corporation
4139:In contrast, a 4-byte binary
1304:4 2 2 1 (I)
173:Digital Equipment Corporation
8915:. p. 93. Archived from
8745:. Iowa City, Iowa, USA: The
8739:"BCD Arithmetic, a tutorial"
8660:. Version 072. Vol. 1.
8502:VAX-11 Architecture Handbook
8481:PDP-11 Architecture Handbook
8290:Servomechanisms Laboraratory
8086:Royal Aircraft Establishment
8062:Royal Aircraft Establishment
8026:Savard, John J. G. (2018) .
7886:Technical Publishing Company
7706:Institute of Radio Engineers
7044:(8+82 pages) (NB. The 4-bit
7002:"General Decimal Arithmetic"
6840:Advanced Electronic Circuits
6495:Royal Aircraft Establishment
6042:) preceding the digit bytes
6018:) following the digit bytes
5822:, or to drive signals for a
5463:// all the binary carry bits
5316:x86 architecture supports a
5206:In the decimal architecture
4122:+1) bytes of storage space.
171:series and its descendants,
8280:John Wiley & Sons, Inc.
7520:10.1007/978-3-642-86187-1_3
7154:(NB. The shown Kautz code (
6772:] (in German). Munich:
6712:Walter de Gruyter & Co.
6635:Walter de Gruyter & Co.
5881:Representational variations
5796:Comparison with pure binary
4923:is treated as two nibbles:
4262:mainframe systems, support
2990:8 4 −2 −1
985:(2 4 2 1)
431:Simple Binary-Coded Decimal
163:BCD was used in many early
9474:
9406:General Decimal Arithmetic
9380:General Decimal Arithmetic
9350:General Decimal Arithmetic
8838:Mathur, Aditya P. (1989).
8414:; Smosna, Matthew (1990).
8186:University of Pennsylvania
7983:. . ark:/13960/t72v3b312.
7890:Dun & Bradstreet Corp.
7714:10.1109/JRPROC.1953.274330
7474:
7437:
7420:
7163:
7027:(1 ed.). London, UK:
6683:. A reworked and expanded
6586:"ia32 architecture manual"
6221:since the position of the
5487:// just the BCD carry bits
5010:
4911:It is possible to perform
4209:Fixed-point packed decimal
4094:bytes can contain up to (2
3352:
3291:
3230:
3169:
3108:
3045:
2984:
2923:
2862:
2797:
2732:
2667:
2606:
2541:
2480:
2414:
2348:
2287:
2224:
2163:
2102:
2037:
1972:
1911:
1850:
1791:
1730:
1667:
1606:
1545:
1484:
1423:
1360:
1297:
1234:
1173:
1107:
1041:
975:
914:
853:
789:
29:
8682:general-purpose registers
8028:"Decimal Representations"
7808:for full-circle rotatory
7651:10.1007/978-3-642-80560-8
7273:10.1007/978-1-349-01417-0
7045:
6891:10.1007/978-3-642-87663-9
6764:Tafel, Hans Jörg (1971).
6248:floating-point standard.
6007:Signed trailing separate
5237:, IBM expanded 6-bit BCD
5233:With the introduction of
5183:, used as a flag bit and
5104:character code, and bits
4888:Fixed-point zoned decimal
4290:
4287:
3356:
3295:
3234:
3173:
3112:
3049:
2988:
2927:
2866:
2801:
2736:
2671:
2610:
2545:
2484:
2418:
2352:
2291:
2228:
2169:4 3 1 1
2167:
2106:
2041:
1976:
1915:
1854:
1795:
1736:5 2 1 1
1734:
1671:
1612:5 3 1 1
1610:
1551:5 1 2 1
1549:
1490:5 2 2 1
1488:
1429:5 4 2 1
1427:
1364:
1301:
1238:
1177:
1111:
1045:
979:
920:7 4 2 1
918:
857:
793:
614:
9300:Brown; Vranesic (2003).
8811:British Computer Society
8767:University of Alicante.
8381:10.1109/TEC.1959.5222057
8284:Chapman & Hall, Ltd.
8243:10.1109/TEC.1955.5219487
8194:10.1109/TEC.1956.5219934
8122:10.1109/TCE.1956.6372498
7828:Pulse Code Communication
7618:(127). Berlin, Germany:
7261:The Macmillan Press Ltd.
6714:pp. 25, 28, 38–39.
6658:. . Archiv-Nr. 7990709.
6349:Bi-quinary coded decimal
6031:Signed leading separate
5887:Programmable calculators
5334:
5164:, represented by a lone
4233:Higher-density encodings
4188:Burroughs Medium Systems
32:BCD (character encoding)
8697:least-significant digit
8329:10.1109/TC.1977.1674792
7074:Lala, Parag K. (2007).
7048:BCD code with an extra
7033:Interscience Publishers
6970:, Zürich, Switzerland:
6956:Speiser, Ambrosius Paul
5263:and processors such as
5168:punch in the card, and
5068:). For encoding digits
5064:) and a word mark bit (
4182:and some models of the
4072:1 1 1 1
4056:1 1 1 0
4040:1 1 0 1
4024:1 1 0 0
4008:1 0 1 1
3992:1 0 1 0
3978:8 4 2 1
8701:most-significant digit
8551:"6502 Instruction Set"
7796:
7029:Hilger & Watts Ltd
6381:Densely packed decimal
6360:Binary integer decimal
6238:Densely packed decimal
6219:fixed point arithmetic
6171:
5917:(a blinking display).
5785:seven-segment displays
5698:"Binary-coded decimal"
5674:relies excessively on
5148:. The currency symbol
5037:(introduced in 1959),
4247:densely packed decimal
4192:Electrodata 200 series
487:
56:
9170:John Wiley & Sons
7916:Ledley, Robert Steven
7844:. Serial No. 785697.
7841:U.S. patent 2,632,058
7357:Deutsche Philips GmbH
7082:John Wiley & Sons
7054:least significant bit
6277:Atari 8-bit computers
6204:Alternative encodings
6149:
5866:binary multiplication
5824:seven-segment display
5306:Motorola 68000 series
3891:in packed BCD, using
488:
486:{\displaystyle 6+3=9}
449:in 8421 notation, is
151:pseudo-decimal digits
42:
9274:"GNU Superoptimizer"
9066:Gottschalk v. Benson
8743:Arithmetic Tutorials
7608:Runge, Wilhelm Tolmé
7206:Akademie-Verlag GmbH
6354:Binary-coded ternary
6313:Gottschalk v. Benson
6290:Early models of the
5780:single sub-circuit.
5625:improve this article
5547:// corrected BCD sum
5223:two-out-of-five code
5043:decimal architecture
465:
206:). However, decimal
187:-series processors.
69:binary-coded decimal
18:Binary coded decimal
9443:Computer arithmetic
9336:. pp. 273–276.
9241:10.1145/36204.36194
9191:Decimal Computation
9164:Decimal Computation
8569:"NMOS 6502 Opcodes"
8520:"ILE RPG Reference"
8424:New York University
7877:Control Engineering
7645:. pp. 10–23 .
7256:Digital Electronics
7142:Springer-Verlag OHG
6878:Nuclear Electronics
6648:. pp. 17, 21.
6508:O'Brien code type I
6296:were misinterpreted
6281:MOS Technology 6502
6161:bits 4321 of octet
6151:bits 8765 of octet
5128:, an "11 zone" set
5047:IBM 700/7000 series
5017:IBM used the terms
4902:Operations with BCD
3957:characters and the
498:
183:, and the Motorola
83:numbers where each
9398:Cowlishaw, Mike F.
9372:Cowlishaw, Mike F.
9342:Cowlishaw, Mike F.
8747:University of Iowa
8176:. Correspondence.
7806:unit-distance code
7708:(IRE): 1450–1452.
7144:. pp. 68–75.
7134:Steinbuch, Karl W.
7084:. pp. 20–25.
6998:Cowlishaw, Mike F.
6798:Steinbuch, Karl W.
6774:Carl Hanser Verlag
6525:Excess-3 Gray code
6318:U.S. Supreme Court
6262:personal computers
5970:(canonical format)
5556:BCD in electronics
5442:// provisional sum
5295:exception handling
5136:. Thus the letter
3919:bitwise operations
1856:Magnetic tape
496:
483:
158:positional systems
132:-states are named
57:
9458:Binary arithmetic
9295:. pp. 52–56.
9148:. New York, USA:
9113:978-0-201-14460-4
9028:www.se.ecu.edu.au
8855:978-0-07-460222-5
8735:Jones, Douglas W.
8716:converted to the
8662:Intel Corporation
8450:(xviii+462 pages)
8426:, New York, USA:
8420:Courant Institute
8323:(12): 1286–1288.
7834:. New York, USA:
7681:(viii+252 pages)
7677:978-3-642-80561-5
7529:978-0-387-05871-9
7405:pp. 47–57 .
7393:Kautz, William H.
7282:978-1-349-01419-4
7192:Kämmerer, Wilhelm
7091:978-0-470-07296-7
7035:. pp. 46–64
6527:is also known as
6510:is also known as
6493:is also known as
6393:Year 2000 problem
6310:In the 1972 case
6300:Year 2010 problem
6285:Psion Organiser 1
6234:Chen–Ho encodings
6165:encoding digit 2(
6141:
6140:
6076:original design.
6074:telephone keypads
6054:
6053:
5921:Signed variations
5891:Texas Instruments
5777:
5776:
5769:
5759:
5758:
5751:
5733:
5657:
5656:
5649:
5598:
4974:nine's complement
4875:
4874:
4291:EBCDIC character
4274:F1 F2 D3 1 2 −3
4084:
4083:
3833:
3832:
3411:
3410:
427:
426:
165:decimal computers
135:pseudo-tetrad(e)s
16:(Redirected from
9465:
9419:
9417:
9416:
9393:
9391:
9390:
9360:
9358:
9357:
9337:
9324:
9305:
9296:
9281:
9268:
9266:
9265:
9259:
9226:
9216:(October 1987).
9204:
9183:
9167:
9153:
9152:. pp. 397–.
9140:
9138:
9136:
9130:
9102:
9081:
9062:
9056:
9055:MC6818 datasheet
9053:
9047:
9045:
9043:
9042:
9036:
9030:. Archived from
9025:
9017:
9011:
9009:
9007:
9006:
9000:
8985:
8977:
8971:
8969:
8967:
8966:
8960:
8945:
8937:
8931:
8930:
8928:
8927:
8921:
8914:
8906:
8900:
8899:
8897:
8890:
8882:
8876:
8875:
8866:
8860:
8859:
8835:
8829:
8828:
8826:
8825:
8819:
8808:
8800:
8794:
8793:
8791:
8790:
8784:
8773:
8764:
8758:
8757:
8755:
8754:
8731:
8725:
8722:
8713:two's complement
8678:. p. 4-10:
8677:
8676:
8670:
8659:
8648:
8642:
8641:
8639:
8638:
8632:
8625:
8615:
8609:
8607:
8605:
8604:
8598:
8591:
8583:
8577:
8576:
8571:. Archived from
8565:
8559:
8558:
8547:
8541:
8540:
8538:
8530:
8524:
8523:
8516:
8510:
8509:
8498:
8489:
8488:
8476:
8470:
8469:
8457:
8451:
8449:
8408:
8402:
8400:
8358:
8352:
8351:
8349:
8348:
8306:
8297:
8287:
8267:
8256:
8254:
8224:
8218:
8216:
8214:
8213:
8204:. Archived from
8163:
8154:
8152:
8150:
8149:
8099:
8090:
8089:
8077:
8071:
8065:
8053:
8047:
8046:
8044:
8043:
8023:
8010:
8002:
7996:
7995:
7989:
7926:
7912:
7903:
7901:
7867:
7861:
7859:
7857:
7856:
7850:
7843:
7833:
7819:
7813:
7799:
7793:
7791:
7790:
7778:
7772:
7771:
7769:
7768:
7749:
7743:
7741:
7691:
7685:
7680:
7634:
7625:
7623:
7603:
7594:
7592:
7590:
7589:
7583:
7572:
7562:
7553:
7551:
7540:
7538:
7537:
7497:
7486:
7450:
7424:of Sec. II for Δ
7415:
7414:
7389:
7372:
7370:
7348:
7309:
7307:
7305:
7304:
7295:. Archived from
7250:
7211:
7209:
7188:
7171:
7153:
7129:
7096:
7095:
7071:
7065:
7043:
7041:
7040:
7018:
7012:
7011:
7009:
7008:
6994:
6988:
6987:
6952:
6946:
6945:
6943:
6942:
6918:
6912:
6911:
6909:
6908:
6872:
6866:
6865:
6863:
6862:
6834:
6828:
6827:
6794:
6788:
6787:
6761:
6755:
6754:
6736:
6730:
6728:
6699:
6688:
6687:exists as well.)
6681:978-3-11002793-8
6670:
6668:
6667:
6647:
6620:
6611:
6610:
6608:
6607:
6601:
6590:
6581:
6564:
6545:
6536:
6521:
6515:
6504:
6498:
6487:
6481:
6478:
6472:
6465:
6459:
6456:
6441:
6414:
6376:Decimal computer
6371:Chen–Ho encoding
6212:
6186:mobile telephony
6180:
6176:
6155:encoding digit 2
6079:
6050:
6041:
6037:
6026:
6017:
6013:
6002:
5983:
5968:Signed trailing
5963:
5932:
5889:manufactured by
5772:
5765:
5754:
5747:
5743:
5740:
5734:
5732:
5691:
5667:
5659:
5652:
5645:
5641:
5638:
5632:
5609:
5601:
5590:
5568:
5567:
5560:
5551:
5548:
5545:
5542:
5539:
5536:
5533:
5530:
5527:
5524:
5521:
5518:
5515:
5512:
5509:
5506:
5503:
5500:
5497:
5494:
5491:
5488:
5485:
5482:
5479:
5476:
5473:
5470:
5467:
5464:
5461:
5458:
5455:
5452:
5449:
5446:
5443:
5440:
5437:
5434:
5431:
5428:
5425:
5422:
5419:
5416:
5413:
5410:
5407:
5404:
5401:
5398:
5395:
5392:
5389:
5386:
5383:
5380:
5377:
5374:
5371:
5368:
5365:
5362:
5359:
5356:
5353:
5350:
5347:
5344:
5341:
5338:
5288:series includes
5172:in core memory.
5002:BCD in computers
4282:
4241:Chen–Ho encoding
4198:Ten's complement
4184:SDS Sigma series
4178:processors from
4141:two's complement
4136:of the machine.
4117:
4115:
4114:
4111:
4108:
4102:digits requires
3968:
3961:representation.
3959:signed overpunch
3906:
3890:
3869:
3858:bits 0 through 3
3554:
3550:
3546:
3541:
3536:
3530:
3524:
3515:
3511:
3507:
3498:
3494:
3490:
3469:
3465:
3461:
3448:
3444:
3440:
3436:
3432:
3430:
3426:
3422:
2807:
2742:
2677:
2551:
2425:
2359:
2047:
1982:
1675:
1369:
1306:
1243:
1118:
1052:
986:
499:
492:
490:
489:
484:
460:
456:
452:
448:
233:
144:
75:) is a class of
21:
9473:
9472:
9468:
9467:
9466:
9464:
9463:
9462:
9448:Numeral systems
9433:
9432:
9414:
9412:
9396:
9388:
9386:
9370:
9367:
9355:
9353:
9340:
9327:
9321:
9308:
9299:
9286:
9272:
9263:
9261:
9257:
9251:
9224:
9214:Massalin, Henry
9212:
9201:
9187:Schmid, Hermann
9185:
9180:
9158:Schmid, Hermann
9156:
9143:
9134:
9132:
9128:
9114:
9100:
9093:
9090:
9088:Further reading
9085:
9084:
9063:
9059:
9054:
9050:
9040:
9038:
9034:
9023:
9019:
9018:
9014:
9004:
9002:
8998:
8983:
8979:
8978:
8974:
8964:
8962:
8958:
8943:
8939:
8938:
8934:
8925:
8923:
8919:
8912:
8908:
8907:
8903:
8895:
8888:
8884:
8883:
8879:
8868:
8867:
8863:
8856:
8837:
8836:
8832:
8823:
8821:
8817:
8806:
8802:
8801:
8797:
8788:
8786:
8782:
8771:
8766:
8765:
8761:
8752:
8750:
8737:(2015-11-25) .
8733:
8732:
8728:
8674:
8672:
8668:
8657:
8650:
8649:
8645:
8636:
8634:
8630:
8623:
8617:
8616:
8612:
8602:
8600:
8596:
8589:
8585:
8584:
8580:
8567:
8566:
8562:
8549:
8548:
8544:
8536:
8532:
8531:
8527:
8518:
8517:
8513:
8500:
8499:
8492:
8478:
8477:
8473:
8459:
8458:
8454:
8438:
8410:
8409:
8405:
8360:
8359:
8355:
8346:
8344:
8308:
8307:
8300:
8269:
8268:
8259:
8226:
8225:
8221:
8211:
8209:
8165:
8164:
8157:
8147:
8145:
8101:
8100:
8093:
8079:
8078:
8074:
8055:
8054:
8050:
8041:
8039:
8025:
8024:
8013:
7997:. p. 517:
7993:
7991:
7987:
7981:
7939:
7924:
7914:
7913:
7906:
7869:
7868:
7864:
7854:
7852:
7848:
7839:
7831:
7825:(1953-03-17) .
7821:
7820:
7816:
7788:
7786:
7780:
7779:
7775:
7766:
7764:
7751:
7750:
7746:
7693:
7692:
7688:
7661:
7643:Springer-Verlag
7636:
7635:
7628:
7605:
7604:
7597:
7587:
7585:
7581:
7570:
7564:
7563:
7556:
7545:
7535:
7533:
7530:
7512:Springer-Verlag
7508:Akademie-Verlag
7499:
7498:
7489:
7447:
7443:
7435:
7431:
7427:
7412:
7410:
7391:
7390:
7375:
7367:
7350:
7349:
7312:
7302:
7300:
7293:
7283:
7252:
7251:
7214:
7190:
7189:
7174:
7131:
7130:
7099:
7092:
7073:
7072:
7068:
7038:
7036:
7020:
7019:
7015:
7006:
7004:
6996:
6995:
6991:
6978:. p. 209.
6972:Springer-Verlag
6954:
6953:
6949:
6940:
6938:
6937:. 9783642980886
6935:
6920:
6919:
6915:
6906:
6904:
6901:
6883:Springer-Verlag
6874:
6873:
6869:
6860:
6858:
6857:. 9783642812415
6855:
6836:
6835:
6831:
6816:
6806:Springer-Verlag
6796:
6795:
6791:
6784:
6763:
6762:
6758:
6751:
6738:
6737:
6733:
6722:
6701:
6700:
6691:
6665:
6663:
6656:
6641:
6622:
6621:
6614:
6605:
6603:
6599:
6588:
6583:
6582:
6578:
6573:
6568:
6567:
6546:
6539:
6522:
6518:
6505:
6501:
6488:
6484:
6479:
6475:
6466:
6462:
6457:
6444:
6422:pseudo-tetrades
6415:
6406:
6401:
6345:
6308:
6254:
6210:
6206:
6178:
6177:, would become
6174:
6173:Meaning number
6088:
6083:
6059:
6045:
6039:
6035:
6021:
6015:
6011:
5997:
5988:Signed leading
5977:
5957:
5923:
5895:Hewlett-Packard
5883:
5874:
5853:
5803:
5798:
5773:
5762:
5761:
5760:
5755:
5744:
5738:
5735:
5692:
5690:
5684:
5680:primary sources
5668:
5653:
5642:
5636:
5633:
5622:
5610:
5569:
5565:
5558:
5553:
5552:
5549:
5546:
5543:
5540:
5537:
5534:
5531:
5528:
5525:
5522:
5519:
5516:
5513:
5510:
5507:
5504:
5501:
5498:
5495:
5492:
5489:
5486:
5483:
5480:
5477:
5474:
5471:
5468:
5465:
5462:
5459:
5456:
5453:
5450:
5447:
5444:
5441:
5438:
5435:
5432:
5429:
5426:
5423:
5420:
5417:
5414:
5411:
5408:
5405:
5402:
5399:
5396:
5393:
5390:
5387:
5384:
5381:
5378:
5375:
5372:
5369:
5366:
5363:
5360:
5357:
5354:
5351:
5348:
5345:
5342:
5339:
5336:
5282:
5280:Other computers
5225:in the digits,
5045:members of the
5039:IBM 1400 series
5015:
5009:
5004:
4991:
4984:
4967:negative number
4963:positive number
4951:
4935:half-carry flag
4927:
4920:
4909:
4904:
4899:
4890:
4280:
4275:
4256:
4235:
4226:
4211:
4148:binary notation
4129:
4112:
4109:
4106:
4105:
4103:
3977:
3972:
3927:
3902:
3899:
3886:
3880:
3874:
3865:
3829:1111 1001
3826:0011 1001
3803:1111 1000
3800:0011 1000
3777:1111 0111
3774:0011 0111
3725:1111 0101
3722:0011 0101
3699:1111 0100
3696:0011 0100
3673:1111 0011
3670:0011 0011
3647:1111 0010
3644:0011 0010
3621:1111 0001
3618:0011 0001
3595:1111 0000
3592:0011 0000
3569:0000 8421
3568:
3562:0000 8421
3561:
3552:
3548:
3544:
3542:
3537:
3531:
3525:
3519:
3513:
3509:
3505:
3503:
3496:
3492:
3488:
3486:
3467:
3463:
3459:
3457:
3452:
3442:
3438:
3434:
3428:
3424:
3420:
3418:
2803:
2738:
2673:
2547:
2420:
2354:
2043:
1978:
1673:
1365:
1302:
1239:
1113:
1047:
981:
463:
462:
224:
216:rounding errors
181:Burroughs B1700
147:pseudo-decimals
138:
35:
28:
23:
22:
15:
12:
11:
5:
9471:
9469:
9461:
9460:
9455:
9450:
9445:
9435:
9434:
9431:
9430:
9425:
9420:
9394:
9366:
9365:External links
9363:
9362:
9361:
9338:
9325:
9319:
9306:
9297:
9284:
9283:
9282:
9249:
9235:(4): 122–126.
9210:
9199:
9178:
9154:
9141:
9112:
9089:
9086:
9083:
9082:
9057:
9048:
9012:
8972:
8932:
8901:
8891:. p. 15.
8877:
8861:
8854:
8844:(3 ed.).
8830:
8795:
8759:
8726:
8643:
8610:
8578:
8575:on 2016-01-14.
8560:
8542:
8525:
8511:
8490:
8471:
8452:
8436:
8430:. p. 14.
8418:(1 ed.).
8403:
8375:(4): 449–458.
8353:
8298:
8257:
8237:(4): 158–159.
8219:
8155:
8091:
8072:
8048:
8011:
7979:
7937:
7904:
7862:
7814:
7773:
7757:Electronic Hub
7744:
7686:
7659:
7626:
7595:
7554:
7543:Éditions Dunod
7528:
7514:. p. 46.
7487:
7445:
7441:
7433:
7429:
7425:
7416:. p. 52:
7373:
7365:
7359:. p. 50.
7310:
7291:
7281:
7212:
7172:
7160:original Kautz
7097:
7090:
7066:
7013:
6989:
6947:
6934:978-3642980886
6933:
6913:
6900:978-3642876639
6899:
6867:
6854:978-3642812415
6853:
6829:
6814:
6789:
6782:
6756:
6749:
6731:
6724:. p. 25:
6720:
6689:
6654:
6612:
6575:
6574:
6572:
6569:
6566:
6565:
6537:
6516:
6499:
6491:Petherick code
6482:
6473:
6460:
6442:
6403:
6402:
6400:
6397:
6396:
6395:
6390:
6384:
6378:
6373:
6368:
6363:
6357:
6351:
6344:
6341:
6307:
6304:
6253:
6250:
6205:
6202:
6200:(SUPI), et.c.
6139:
6138:
6135:
6131:
6130:
6127:
6123:
6122:
6119:
6115:
6114:
6111:
6107:
6106:
6103:
6099:
6098:
6095:
6091:
6090:
6085:
6058:
6055:
6052:
6051:
6043:
6032:
6028:
6027:
6019:
6008:
6004:
6003:
5995:
5992:
5985:
5984:
5975:
5972:
5965:
5964:
5955:
5949:
5943:
5942:
5939:
5936:
5922:
5919:
5899:floating-point
5882:
5879:
5878:
5877:
5872:
5869:
5857:
5852:
5849:
5848:
5847:
5843:
5816:
5813:
5807:
5802:
5799:
5797:
5794:
5775:
5774:
5757:
5756:
5671:
5669:
5662:
5655:
5654:
5613:
5611:
5604:
5599:
5573:
5572:
5570:
5563:
5557:
5554:
5335:
5281:
5278:
5265:z/Architecture
5011:Main article:
5008:
5005:
5003:
5000:
4989:
4982:
4950:
4947:
4925:
4918:
4908:
4905:
4903:
4900:
4897:
4889:
4886:
4873:
4872:
4869:
4866:
4863:
4860:
4857:
4854:
4851:
4848:
4844:
4843:
4840:
4837:
4834:
4831:
4828:
4825:
4822:
4819:
4815:
4814:
4811:
4808:
4805:
4802:
4799:
4796:
4793:
4790:
4786:
4785:
4782:
4779:
4776:
4773:
4770:
4767:
4764:
4761:
4757:
4756:
4753:
4750:
4747:
4744:
4741:
4738:
4735:
4732:
4728:
4727:
4724:
4721:
4718:
4715:
4712:
4709:
4706:
4703:
4699:
4698:
4695:
4692:
4689:
4686:
4683:
4680:
4677:
4674:
4670:
4669:
4666:
4663:
4660:
4657:
4654:
4651:
4648:
4645:
4641:
4640:
4637:
4634:
4631:
4628:
4625:
4622:
4619:
4616:
4612:
4611:
4608:
4605:
4602:
4599:
4596:
4593:
4590:
4587:
4583:
4582:
4579:
4576:
4573:
4570:
4567:
4564:
4561:
4558:
4554:
4553:
4550:
4547:
4544:
4541:
4538:
4535:
4532:
4529:
4525:
4524:
4521:
4518:
4515:
4512:
4509:
4506:
4503:
4500:
4496:
4495:
4492:
4489:
4486:
4483:
4480:
4477:
4474:
4471:
4467:
4466:
4463:
4460:
4457:
4454:
4451:
4448:
4445:
4442:
4438:
4437:
4434:
4431:
4428:
4425:
4422:
4419:
4416:
4413:
4409:
4408:
4405:
4402:
4399:
4396:
4393:
4390:
4387:
4384:
4380:
4379:
4376:
4373:
4370:
4367:
4364:
4361:
4358:
4355:
4351:
4350:
4347:
4344:
4341:
4338:
4335:
4332:
4329:
4326:
4322:
4321:
4318:
4315:
4312:
4309:
4306:
4303:
4300:
4297:
4293:
4292:
4289:
4286:
4279:
4276:
4273:
4255:
4252:
4234:
4231:
4221:
4210:
4207:
4127:
4082:
4081:
4078:
4073:
4070:
4066:
4065:
4062:
4057:
4054:
4050:
4049:
4046:
4041:
4038:
4034:
4033:
4030:
4025:
4022:
4018:
4017:
4014:
4009:
4006:
4002:
4001:
3998:
3993:
3990:
3986:
3985:
3982:
3979:
3974:
3935:packed decimal
3926:
3923:
3897:
3878:
3872:
3862:
3861:
3847:
3831:
3830:
3827:
3824:
3821:
3818:
3815:
3812:
3809:
3805:
3804:
3801:
3798:
3795:
3792:
3789:
3786:
3783:
3779:
3778:
3775:
3772:
3769:
3766:
3763:
3760:
3757:
3753:
3752:
3749:
3746:
3743:
3740:
3737:
3734:
3731:
3727:
3726:
3723:
3720:
3717:
3714:
3711:
3708:
3705:
3701:
3700:
3697:
3694:
3691:
3688:
3685:
3682:
3679:
3675:
3674:
3671:
3668:
3665:
3662:
3659:
3656:
3653:
3649:
3648:
3645:
3642:
3639:
3636:
3633:
3630:
3627:
3623:
3622:
3619:
3616:
3613:
3610:
3607:
3604:
3601:
3597:
3596:
3593:
3590:
3587:
3584:
3581:
3578:
3575:
3571:
3570:
3563:
3556:
3517:
3500:
3480:
3476: code or
3471:
3454:
3409:
3408:
3406:
3403:
3400:
3397:
3394:
3391:
3388:
3385:
3382:
3379:
3376:
3373:
3370:
3367:
3364:
3361:
3358:
3354:
3353:
3350:
3349:
3347:
3344:
3341:
3338:
3335:
3332:
3329:
3326:
3323:
3320:
3317:
3314:
3311:
3308:
3305:
3302:
3299:
3293:
3292:
3289:
3288:
3286:
3283:
3280:
3277:
3274:
3271:
3268:
3265:
3262:
3259:
3256:
3253:
3250:
3247:
3244:
3241:
3238:
3232:
3231:
3228:
3227:
3225:
3222:
3219:
3216:
3213:
3210:
3207:
3204:
3201:
3198:
3195:
3192:
3189:
3186:
3183:
3180:
3177:
3171:
3170:
3167:
3166:
3164:
3161:
3158:
3155:
3152:
3149:
3146:
3143:
3140:
3137:
3134:
3131:
3128:
3125:
3122:
3119:
3116:
3110:
3109:
3106:
3105:
3103:
3100:
3097:
3094:
3091:
3088:
3085:
3082:
3079:
3076:
3073:
3070:
3067:
3064:
3061:
3058:
3055:
3047:
3046:
3043:
3042:
3040:
3037:
3034:
3031:
3028:
3025:
3022:
3019:
3016:
3013:
3010:
3007:
3004:
3001:
2998:
2995:
2992:
2986:
2985:
2982:
2981:
2979:
2976:
2973:
2970:
2967:
2964:
2961:
2958:
2955:
2952:
2949:
2946:
2943:
2940:
2937:
2934:
2931:
2925:
2924:
2921:
2920:
2918:
2915:
2912:
2909:
2906:
2903:
2900:
2897:
2894:
2891:
2888:
2885:
2882:
2879:
2876:
2873:
2870:
2864:
2863:
2860:
2859:
2857:
2854:
2851:
2848:
2845:
2842:
2839:
2836:
2833:
2830:
2827:
2824:
2821:
2818:
2815:
2812:
2809:
2799:
2798:
2795:
2794:
2792:
2789:
2786:
2783:
2780:
2777:
2774:
2771:
2768:
2765:
2762:
2759:
2756:
2753:
2750:
2747:
2744:
2734:
2733:
2730:
2729:
2727:
2724:
2721:
2718:
2715:
2712:
2709:
2706:
2703:
2700:
2697:
2694:
2691:
2688:
2685:
2682:
2679:
2669:
2668:
2665:
2664:
2662:
2659:
2656:
2653:
2650:
2647:
2644:
2641:
2638:
2635:
2632:
2629:
2626:
2623:
2620:
2617:
2614:
2608:
2607:
2604:
2603:
2601:
2598:
2595:
2592:
2589:
2586:
2583:
2580:
2577:
2574:
2571:
2568:
2565:
2562:
2559:
2556:
2553:
2543:
2542:
2539:
2538:
2536:
2533:
2530:
2527:
2524:
2521:
2518:
2515:
2512:
2509:
2506:
2503:
2500:
2497:
2494:
2491:
2488:
2482:
2481:
2478:
2477:
2475:
2472:
2469:
2466:
2463:
2460:
2457:
2454:
2451:
2448:
2445:
2442:
2439:
2436:
2433:
2430:
2427:
2416:
2415:
2412:
2411:
2409:
2406:
2403:
2400:
2397:
2394:
2391:
2388:
2385:
2382:
2379:
2376:
2373:
2370:
2367:
2364:
2361:
2350:
2349:
2346:
2345:
2343:
2340:
2337:
2334:
2331:
2328:
2325:
2322:
2319:
2316:
2313:
2310:
2307:
2304:
2301:
2298:
2295:
2289:
2288:
2285:
2284:
2282:
2279:
2276:
2273:
2270:
2267:
2264:
2261:
2258:
2255:
2252:
2249:
2246:
2243:
2240:
2237:
2234:
2226:
2225:
2222:
2221:
2219:
2216:
2213:
2210:
2207:
2204:
2201:
2198:
2195:
2192:
2189:
2186:
2183:
2180:
2177:
2174:
2171:
2165:
2164:
2161:
2160:
2158:
2155:
2152:
2149:
2146:
2143:
2140:
2137:
2134:
2131:
2128:
2125:
2122:
2119:
2116:
2113:
2110:
2104:
2103:
2100:
2099:
2097:
2094:
2091:
2088:
2085:
2082:
2079:
2076:
2073:
2070:
2067:
2064:
2061:
2058:
2055:
2052:
2049:
2039:
2038:
2035:
2034:
2032:
2029:
2026:
2023:
2020:
2017:
2014:
2011:
2008:
2005:
2002:
1999:
1996:
1993:
1990:
1987:
1984:
1974:
1973:
1970:
1969:
1967:
1964:
1961:
1958:
1955:
1952:
1949:
1946:
1943:
1940:
1937:
1934:
1931:
1928:
1925:
1922:
1919:
1913:
1912:
1909:
1908:
1906:
1903:
1900:
1897:
1894:
1891:
1888:
1885:
1882:
1879:
1876:
1873:
1870:
1867:
1864:
1861:
1858:
1852:
1851:
1848:
1847:
1845:
1842:
1839:
1836:
1833:
1830:
1827:
1824:
1821:
1818:
1815:
1812:
1809:
1806:
1803:
1800:
1797:
1793:
1792:
1789:
1788:
1786:
1783:
1780:
1777:
1774:
1771:
1768:
1765:
1762:
1759:
1756:
1753:
1750:
1747:
1744:
1741:
1738:
1732:
1731:
1728:
1727:
1725:
1722:
1719:
1716:
1713:
1710:
1707:
1704:
1701:
1698:
1695:
1692:
1689:
1686:
1683:
1680:
1677:
1669:
1668:
1665:
1664:
1662:
1659:
1656:
1653:
1650:
1647:
1644:
1641:
1638:
1635:
1632:
1629:
1626:
1623:
1620:
1617:
1614:
1608:
1607:
1604:
1603:
1601:
1598:
1595:
1592:
1589:
1586:
1583:
1580:
1577:
1574:
1571:
1568:
1565:
1562:
1559:
1556:
1553:
1547:
1546:
1543:
1542:
1540:
1537:
1534:
1531:
1528:
1525:
1522:
1519:
1516:
1513:
1510:
1507:
1504:
1501:
1498:
1495:
1492:
1486:
1485:
1482:
1481:
1479:
1476:
1473:
1470:
1467:
1464:
1461:
1458:
1455:
1452:
1449:
1446:
1443:
1440:
1437:
1434:
1431:
1425:
1424:
1421:
1420:
1418:
1415:
1412:
1409:
1406:
1403:
1400:
1397:
1394:
1391:
1388:
1385:
1382:
1379:
1376:
1373:
1370:
1362:
1361:
1358:
1357:
1355:
1352:
1349:
1346:
1343:
1340:
1337:
1334:
1331:
1328:
1325:
1322:
1319:
1316:
1313:
1310:
1307:
1299:
1298:
1295:
1294:
1292:
1289:
1286:
1283:
1280:
1277:
1274:
1271:
1268:
1265:
1262:
1259:
1256:
1253:
1250:
1247:
1244:
1236:
1235:
1232:
1231:
1229:
1226:
1223:
1220:
1217:
1214:
1211:
1208:
1205:
1202:
1199:
1196:
1193:
1190:
1187:
1184:
1181:
1175:
1174:
1171:
1170:
1168:
1165:
1162:
1159:
1156:
1153:
1150:
1147:
1144:
1141:
1138:
1135:
1132:
1129:
1126:
1123:
1120:
1109:
1108:
1105:
1104:
1102:
1099:
1096:
1093:
1090:
1087:
1084:
1081:
1078:
1075:
1072:
1069:
1066:
1063:
1060:
1057:
1054:
1043:
1042:
1039:
1038:
1036:
1033:
1030:
1027:
1024:
1021:
1018:
1015:
1012:
1009:
1006:
1003:
1000:
997:
994:
991:
988:
977:
976:
973:
972:
970:
967:
964:
961:
958:
955:
952:
949:
946:
943:
940:
937:
934:
931:
928:
925:
922:
916:
915:
912:
911:
909:
906:
903:
900:
897:
894:
891:
888:
885:
882:
879:
876:
873:
870:
867:
864:
861:
855:
854:
851:
850:
845:
842:
839:
836:
833:
830:
827:
824:
821:
818:
815:
812:
809:
806:
803:
800:
797:
791:
790:
787:
786:
783:
780:
777:
774:
771:
768:
765:
762:
759:
756:
753:
750:
747:
744:
741:
738:
735:
731:
730:
727:
724:
721:
718:
715:
712:
709:
706:
703:
700:
697:
694:
691:
688:
685:
682:
679:
675:
674:
671:
668:
665:
662:
659:
656:
653:
650:
647:
644:
641:
638:
635:
632:
629:
626:
623:
619:
618:
613:
610:
607:
604:
601:
598:
595:
592:
589:
586:
583:
580:
577:
574:
571:
568:
565:
562:
558:
557:
554:
551:
548:
545:
542:
539:
536:
533:
530:
527:
524:
521:
518:
515:
512:
509:
506:
503:
482:
479:
476:
473:
470:
425:
424:
421:
418:
415:
412:
408:
407:
404:
401:
398:
395:
391:
390:
387:
384:
381:
378:
374:
373:
370:
367:
364:
361:
357:
356:
353:
350:
347:
344:
340:
339:
336:
333:
330:
327:
323:
322:
319:
316:
313:
310:
306:
305:
302:
299:
296:
293:
289:
288:
285:
282:
279:
276:
272:
271:
268:
265:
262:
259:
255:
254:
251:
248:
245:
241:
240:
237:
236:Decimal digit
223:
220:
212:floating-point
169:IBM System/360
26:
24:
14:
13:
10:
9:
6:
4:
3:
2:
9470:
9459:
9456:
9454:
9451:
9449:
9446:
9444:
9441:
9440:
9438:
9429:
9426:
9424:
9421:
9411:
9407:
9403:
9399:
9395:
9385:
9381:
9377:
9373:
9369:
9368:
9364:
9351:
9347:
9343:
9339:
9335:
9331:
9326:
9322:
9320:1-60132-009-4
9316:
9312:
9307:
9303:
9298:
9294:
9290:
9285:
9279:
9275:
9271:
9270:
9256:
9252:
9250:0-8186-0805-6
9246:
9242:
9238:
9234:
9230:
9223:
9219:
9215:
9211:
9208:
9202:
9200:0-89874-318-4
9196:
9192:
9188:
9181:
9179:0-471-76180-X
9175:
9171:
9166:
9165:
9159:
9155:
9151:
9147:
9142:
9127:
9123:
9119:
9115:
9109:
9106:
9099:
9098:
9092:
9091:
9087:
9079:
9076:
9072:
9068:
9067:
9061:
9058:
9052:
9049:
9037:on 2008-10-10
9033:
9029:
9022:
9016:
9013:
8997:
8993:
8989:
8982:
8976:
8973:
8957:
8953:
8949:
8942:
8936:
8933:
8922:on 2015-02-21
8918:
8911:
8905:
8902:
8894:
8887:
8881:
8878:
8873:
8872:
8865:
8862:
8857:
8851:
8847:
8843:
8842:
8834:
8831:
8816:
8812:
8805:
8799:
8796:
8781:
8777:
8770:
8763:
8760:
8748:
8744:
8740:
8736:
8730:
8727:
8724:
8721:
8719:
8714:
8710:
8706:
8702:
8698:
8694:
8691:
8687:
8683:
8667:
8663:
8656:
8655:
8647:
8644:
8629:
8622:
8621:
8614:
8611:
8595:
8588:
8582:
8579:
8574:
8570:
8564:
8561:
8556:
8552:
8546:
8543:
8535:
8529:
8526:
8521:
8515:
8512:
8507:
8503:
8497:
8495:
8491:
8486:
8482:
8475:
8472:
8468:. March 1980.
8467:
8463:
8456:
8453:
8447:
8443:
8439:
8437:0-07-016638-2
8433:
8429:
8425:
8421:
8417:
8413:
8407:
8404:
8398:
8394:
8390:
8386:
8382:
8378:
8374:
8370:
8369:
8364:
8357:
8354:
8342:
8338:
8334:
8330:
8326:
8322:
8318:
8317:
8312:
8305:
8303:
8299:
8295:
8291:
8285:
8281:
8277:
8273:
8266:
8264:
8262:
8258:
8252:
8248:
8244:
8240:
8236:
8232:
8231:
8223:
8220:
8208:on 2020-05-18
8207:
8203:
8199:
8195:
8191:
8187:
8183:
8179:
8175:
8174:
8169:
8162:
8160:
8156:
8144:on 2020-05-18
8143:
8139:
8135:
8131:
8127:
8123:
8119:
8115:
8111:
8110:
8105:
8098:
8096:
8092:
8087:
8083:
8076:
8073:
8069:
8063:
8059:
8052:
8049:
8037:
8033:
8029:
8022:
8020:
8018:
8016:
8012:
8008:
8004:
8001:
7986:
7982:
7976:
7972:
7968:
7964:
7960:
7956:
7952:
7948:
7944:
7940:
7934:
7930:
7923:
7922:
7917:
7911:
7909:
7905:
7899:
7895:
7891:
7887:
7883:
7879:
7878:
7873:
7866:
7863:
7847:
7842:
7837:
7830:
7829:
7824:
7818:
7815:
7811:
7807:
7803:
7802:Gray BCD code
7798:
7797:Schleifencode
7784:
7777:
7774:
7762:
7758:
7754:
7748:
7745:
7739:
7735:
7731:
7727:
7723:
7719:
7715:
7711:
7707:
7703:
7699:
7698:
7690:
7687:
7684:
7678:
7674:
7670:
7666:
7662:
7660:3-540-05058-2
7656:
7652:
7648:
7644:
7640:
7633:
7631:
7627:
7621:
7617:
7614:(in German).
7613:
7609:
7602:
7600:
7596:
7580:
7576:
7569:
7568:
7561:
7559:
7555:
7549:
7544:
7531:
7525:
7521:
7517:
7513:
7509:
7505:
7504:
7496:
7494:
7492:
7488:
7484:
7480:
7476:
7472:
7470:
7468:
7466:
7464:
7462:
7460:
7458:
7456:
7454:
7452:
7449:
7439:
7422:
7408:
7404:
7400:
7399:
7394:
7388:
7386:
7384:
7382:
7380:
7378:
7374:
7368:
7366:3-87145-272-6
7362:
7358:
7354:
7347:
7345:
7343:
7341:
7339:
7337:
7335:
7333:
7331:
7329:
7327:
7325:
7323:
7321:
7319:
7317:
7315:
7311:
7299:on 2020-07-16
7298:
7294:
7288:
7284:
7278:
7274:
7270:
7266:
7262:
7258:
7257:
7249:
7247:
7245:
7243:
7241:
7239:
7237:
7235:
7233:
7231:
7229:
7227:
7225:
7223:
7221:
7219:
7217:
7213:
7207:
7203:
7202:
7197:
7196:Frühauf, Hans
7193:
7187:
7185:
7183:
7181:
7179:
7177:
7173:
7169:
7168:9s complement
7165:
7161:
7157:
7151:
7147:
7143:
7139:
7135:
7128:
7126:
7124:
7122:
7120:
7118:
7116:
7114:
7112:
7110:
7108:
7106:
7104:
7102:
7098:
7093:
7087:
7083:
7079:
7078:
7070:
7067:
7063:
7062:Ferranti code
7059:
7055:
7051:
7047:
7034:
7030:
7026:
7025:
7017:
7014:
7003:
6999:
6993:
6990:
6985:
6981:
6977:
6973:
6969:
6965:
6961:
6957:
6951:
6948:
6936:
6930:
6926:
6925:
6917:
6914:
6902:
6896:
6892:
6888:
6884:
6880:
6879:
6871:
6868:
6856:
6850:
6846:
6842:
6841:
6833:
6830:
6825:
6821:
6817:
6815:3-540-06241-6
6811:
6807:
6803:
6799:
6793:
6790:
6785:
6783:3-446-10569-7
6779:
6775:
6771:
6767:
6760:
6757:
6752:
6750:3-486-22662-2
6746:
6742:
6735:
6732:
6727:
6723:
6717:
6713:
6709:
6705:
6698:
6696:
6694:
6690:
6686:
6682:
6678:
6674:
6661:
6657:
6655:3-11-083160-0
6651:
6645:
6640:
6636:
6632:
6628:
6627:
6619:
6617:
6613:
6598:
6594:
6587:
6580:
6577:
6570:
6562:
6558:
6554:
6553:minicomputers
6550:
6544:
6542:
6538:
6534:
6530:
6526:
6520:
6517:
6513:
6509:
6503:
6500:
6496:
6492:
6486:
6483:
6477:
6474:
6470:
6464:
6461:
6455:
6453:
6451:
6449:
6447:
6443:
6439:
6438:unused states
6435:
6431:
6427:
6423:
6419:
6413:
6411:
6409:
6405:
6398:
6394:
6391:
6388:
6387:Double dabble
6385:
6382:
6379:
6377:
6374:
6372:
6369:
6367:
6364:
6361:
6358:
6355:
6352:
6350:
6347:
6346:
6342:
6340:
6338:
6334:
6329:
6327:
6323:
6320:overturned a
6319:
6315:
6314:
6306:Legal history
6305:
6303:
6301:
6297:
6293:
6292:PlayStation 3
6288:
6286:
6282:
6278:
6273:
6271:
6267:
6263:
6259:
6251:
6249:
6247:
6246:IEEE 754-2008
6243:
6239:
6235:
6231:
6226:
6224:
6220:
6214:
6203:
6201:
6199:
6195:
6191:
6187:
6182:
6170:
6168:
6164:
6159:
6158:
6154:
6148:
6146:
6136:
6133:
6132:
6128:
6125:
6124:
6120:
6117:
6116:
6112:
6109:
6108:
6104:
6101:
6100:
6096:
6093:
6092:
6086:
6081:
6080:
6077:
6075:
6071:
6067:
6063:
6056:
6048:
6044:
6033:
6030:
6029:
6025:
6020:
6009:
6006:
6005:
6000:
5996:
5993:
5991:
5987:
5986:
5981:
5976:
5973:
5971:
5967:
5966:
5961:
5956:
5954:
5950:
5948:
5945:
5944:
5940:
5937:
5934:
5933:
5930:
5928:
5920:
5918:
5916:
5912:
5908:
5904:
5900:
5896:
5892:
5888:
5880:
5870:
5867:
5862:
5858:
5855:
5854:
5851:Disadvantages
5850:
5844:
5841:
5837:
5833:
5829:
5825:
5821:
5817:
5814:
5811:
5808:
5805:
5804:
5800:
5795:
5793:
5789:
5786:
5781:
5771:
5768:
5753:
5750:
5742:
5731:
5728:
5724:
5721:
5717:
5714:
5710:
5707:
5703:
5700: –
5699:
5695:
5694:Find sources:
5688:
5682:
5681:
5677:
5672:This section
5670:
5666:
5661:
5660:
5651:
5648:
5640:
5630:
5626:
5620:
5619:
5614:This section
5612:
5608:
5603:
5602:
5597:
5595:
5588:
5587:
5582:
5581:
5576:
5571:
5562:
5561:
5555:
5529:// correction
5333:
5331:
5325:
5321:
5319:
5315:
5311:
5307:
5303:
5298:
5296:
5291:
5287:
5279:
5277:
5274:
5270:
5266:
5262:
5257:
5255:
5251:
5246:
5244:
5240:
5236:
5231:
5228:
5224:
5220:
5217:
5213:
5209:
5204:
5202:
5198:
5194:
5190:
5186:
5182:
5178:
5173:
5171:
5167:
5163:
5159:
5155:
5151:
5147:
5143:
5139:
5135:
5131:
5127:
5123:
5119:
5115:
5111:
5107:
5103:
5099:
5095:
5091:
5087:
5083:
5079:
5075:
5071:
5067:
5063:
5059:
5055:
5054:B, A, 8, 4, 2
5050:
5048:
5044:
5040:
5036:
5032:
5028:
5027:
5022:
5021:
5014:
5006:
5001:
4999:
4995:
4988:
4981:
4978:
4975:
4970:
4968:
4964:
4960:
4956:
4948:
4946:
4944:
4940:
4936:
4930:
4924:
4917:
4914:
4906:
4901:
4896:
4893:
4887:
4885:
4884:
4882:
4870:
4867:
4864:
4861:
4858:
4855:
4852:
4849:
4846:
4845:
4841:
4838:
4835:
4832:
4829:
4826:
4823:
4820:
4817:
4816:
4812:
4809:
4806:
4803:
4800:
4797:
4794:
4791:
4788:
4787:
4783:
4780:
4777:
4774:
4771:
4768:
4765:
4762:
4759:
4758:
4754:
4751:
4748:
4745:
4742:
4739:
4736:
4733:
4730:
4729:
4725:
4722:
4719:
4716:
4713:
4710:
4707:
4704:
4701:
4700:
4696:
4693:
4690:
4687:
4684:
4681:
4678:
4675:
4672:
4671:
4667:
4664:
4661:
4658:
4655:
4652:
4649:
4646:
4643:
4642:
4638:
4635:
4632:
4629:
4626:
4623:
4620:
4617:
4614:
4613:
4609:
4606:
4603:
4600:
4597:
4594:
4591:
4588:
4585:
4584:
4580:
4577:
4574:
4571:
4568:
4565:
4562:
4559:
4556:
4555:
4551:
4548:
4545:
4542:
4539:
4536:
4533:
4530:
4527:
4526:
4522:
4519:
4516:
4513:
4510:
4507:
4504:
4501:
4498:
4497:
4493:
4490:
4487:
4484:
4481:
4478:
4475:
4472:
4469:
4468:
4464:
4461:
4458:
4455:
4452:
4449:
4446:
4443:
4440:
4439:
4435:
4432:
4429:
4426:
4423:
4420:
4417:
4414:
4411:
4410:
4406:
4403:
4400:
4397:
4394:
4391:
4388:
4385:
4382:
4381:
4377:
4374:
4371:
4368:
4365:
4362:
4359:
4356:
4353:
4352:
4348:
4345:
4342:
4339:
4336:
4333:
4330:
4327:
4324:
4323:
4319:
4316:
4313:
4310:
4307:
4304:
4301:
4298:
4295:
4294:
4284:
4283:
4277:
4272:
4268:
4265:
4264:zoned decimal
4261:
4254:Zoned decimal
4253:
4251:
4249:
4248:
4243:
4242:
4232:
4230:
4225:
4220:
4217:
4215:
4208:
4206:
4202:
4199:
4195:
4193:
4189:
4185:
4181:
4177:
4173:
4169:
4164:
4162:
4157:
4153:
4149:
4144:
4142:
4137:
4135:
4126:
4123:
4121:
4101:
4097:
4093:
4089:
4079:
4077:
4074:
4071:
4068:
4067:
4063:
4061:
4058:
4055:
4052:
4051:
4047:
4045:
4042:
4039:
4036:
4035:
4031:
4029:
4026:
4023:
4020:
4019:
4015:
4013:
4010:
4007:
4004:
4003:
3999:
3997:
3994:
3991:
3988:
3987:
3983:
3980:
3975:
3970:
3969:
3966:
3962:
3960:
3956:
3952:
3946:
3944:
3940:
3936:
3932:
3924:
3922:
3920:
3916:
3912:
3908:
3905:
3896:
3894:
3889:
3883:
3877:
3871:
3868:
3859:
3855:
3851:
3848:
3845:
3842:
3841:
3840:
3838:
3828:
3825:
3822:
3819:
3816:
3813:
3810:
3807:
3806:
3802:
3799:
3796:
3793:
3790:
3787:
3784:
3781:
3780:
3776:
3773:
3770:
3767:
3764:
3761:
3758:
3755:
3754:
3750:
3747:
3744:
3741:
3738:
3735:
3732:
3729:
3728:
3724:
3721:
3718:
3715:
3712:
3709:
3706:
3703:
3702:
3698:
3695:
3692:
3689:
3686:
3683:
3680:
3677:
3676:
3672:
3669:
3666:
3663:
3660:
3657:
3654:
3651:
3650:
3646:
3643:
3640:
3637:
3634:
3631:
3628:
3625:
3624:
3620:
3617:
3614:
3611:
3608:
3605:
3602:
3599:
3598:
3594:
3591:
3588:
3585:
3582:
3579:
3576:
3573:
3572:
3567:
3564:
3560:
3557:
3540:
3534:
3528:
3522:
3518:
3501:
3484:
3481:
3479:
3475:
3472:
3455:
3450:
3449:
3446:
3416:
3407:
3404:
3401:
3398:
3395:
3392:
3389:
3386:
3383:
3380:
3377:
3374:
3371:
3368:
3365:
3362:
3359:
3355:
3351:
3348:
3345:
3342:
3339:
3336:
3333:
3330:
3327:
3324:
3321:
3318:
3315:
3312:
3309:
3306:
3303:
3300:
3298:
3294:
3290:
3287:
3284:
3281:
3278:
3275:
3272:
3269:
3266:
3263:
3260:
3257:
3254:
3251:
3248:
3245:
3242:
3239:
3237:
3233:
3229:
3226:
3223:
3220:
3217:
3214:
3211:
3208:
3205:
3202:
3199:
3196:
3193:
3190:
3187:
3184:
3181:
3178:
3176:
3172:
3168:
3165:
3162:
3159:
3156:
3153:
3150:
3147:
3144:
3141:
3138:
3135:
3132:
3129:
3126:
3123:
3120:
3117:
3115:
3111:
3107:
3104:
3101:
3098:
3095:
3092:
3089:
3086:
3083:
3080:
3077:
3074:
3071:
3068:
3065:
3062:
3059:
3056:
3054:
3053:
3048:
3044:
3041:
3038:
3035:
3032:
3029:
3026:
3023:
3020:
3017:
3014:
3011:
3008:
3005:
3002:
2999:
2996:
2993:
2991:
2987:
2983:
2980:
2977:
2974:
2971:
2968:
2965:
2962:
2959:
2956:
2953:
2950:
2947:
2944:
2941:
2938:
2935:
2932:
2930:
2926:
2922:
2919:
2916:
2913:
2910:
2907:
2904:
2901:
2898:
2895:
2892:
2889:
2886:
2883:
2880:
2877:
2874:
2871:
2869:
2865:
2861:
2858:
2855:
2852:
2849:
2846:
2843:
2840:
2837:
2834:
2831:
2828:
2825:
2822:
2819:
2816:
2813:
2810:
2808:
2806:
2805:Excess-3 Gray
2800:
2796:
2793:
2790:
2787:
2784:
2781:
2778:
2775:
2772:
2769:
2766:
2763:
2760:
2757:
2754:
2751:
2748:
2745:
2743:
2741:
2735:
2731:
2728:
2725:
2722:
2719:
2716:
2713:
2710:
2707:
2704:
2701:
2698:
2695:
2692:
2689:
2686:
2683:
2680:
2678:
2676:
2670:
2666:
2663:
2660:
2657:
2654:
2651:
2648:
2645:
2642:
2639:
2636:
2633:
2630:
2627:
2624:
2621:
2618:
2615:
2613:
2609:
2605:
2602:
2599:
2596:
2593:
2590:
2587:
2584:
2581:
2578:
2575:
2572:
2569:
2566:
2563:
2560:
2557:
2554:
2552:
2550:
2544:
2540:
2537:
2534:
2531:
2528:
2525:
2522:
2519:
2516:
2513:
2510:
2507:
2504:
2501:
2498:
2495:
2492:
2489:
2487:
2483:
2479:
2476:
2473:
2470:
2467:
2464:
2461:
2458:
2455:
2452:
2449:
2446:
2443:
2440:
2437:
2434:
2431:
2428:
2426:
2423:
2417:
2413:
2410:
2407:
2404:
2401:
2398:
2395:
2392:
2389:
2386:
2383:
2380:
2377:
2374:
2371:
2368:
2365:
2362:
2360:
2357:
2351:
2347:
2344:
2341:
2338:
2335:
2332:
2329:
2326:
2323:
2320:
2317:
2314:
2311:
2308:
2305:
2302:
2299:
2296:
2294:
2290:
2286:
2283:
2280:
2277:
2274:
2271:
2268:
2265:
2262:
2259:
2256:
2253:
2250:
2247:
2244:
2241:
2238:
2235:
2233:
2232:
2227:
2223:
2220:
2217:
2214:
2211:
2208:
2205:
2202:
2199:
2196:
2193:
2190:
2187:
2184:
2181:
2178:
2175:
2172:
2170:
2166:
2162:
2159:
2156:
2153:
2150:
2147:
2144:
2141:
2138:
2135:
2132:
2129:
2126:
2123:
2120:
2117:
2114:
2111:
2109:
2105:
2101:
2098:
2095:
2092:
2089:
2086:
2083:
2080:
2077:
2074:
2071:
2068:
2065:
2062:
2059:
2056:
2053:
2050:
2048:
2046:
2040:
2036:
2033:
2030:
2027:
2024:
2021:
2018:
2015:
2012:
2009:
2006:
2003:
2000:
1997:
1994:
1991:
1988:
1985:
1983:
1981:
1975:
1971:
1968:
1965:
1962:
1959:
1956:
1953:
1950:
1947:
1944:
1941:
1938:
1935:
1932:
1929:
1926:
1923:
1920:
1918:
1914:
1910:
1907:
1904:
1901:
1898:
1895:
1892:
1889:
1886:
1883:
1880:
1877:
1874:
1871:
1868:
1865:
1862:
1859:
1857:
1853:
1849:
1846:
1843:
1840:
1837:
1834:
1831:
1828:
1825:
1822:
1819:
1816:
1813:
1810:
1807:
1804:
1801:
1798:
1794:
1790:
1787:
1784:
1781:
1778:
1775:
1772:
1769:
1766:
1763:
1760:
1757:
1754:
1751:
1748:
1745:
1742:
1739:
1737:
1733:
1729:
1726:
1723:
1720:
1717:
1714:
1711:
1708:
1705:
1702:
1699:
1696:
1693:
1690:
1687:
1684:
1681:
1678:
1676:
1670:
1666:
1663:
1660:
1657:
1654:
1651:
1648:
1645:
1642:
1639:
1636:
1633:
1630:
1627:
1624:
1621:
1618:
1615:
1613:
1609:
1605:
1602:
1599:
1596:
1593:
1590:
1587:
1584:
1581:
1578:
1575:
1572:
1569:
1566:
1563:
1560:
1557:
1554:
1552:
1548:
1544:
1541:
1538:
1535:
1532:
1529:
1526:
1523:
1520:
1517:
1514:
1511:
1508:
1505:
1502:
1499:
1496:
1493:
1491:
1487:
1483:
1480:
1477:
1474:
1471:
1468:
1465:
1462:
1459:
1456:
1453:
1450:
1447:
1444:
1441:
1438:
1435:
1432:
1430:
1426:
1422:
1419:
1416:
1413:
1410:
1407:
1404:
1401:
1398:
1395:
1392:
1389:
1386:
1383:
1380:
1377:
1374:
1371:
1368:
1363:
1359:
1356:
1353:
1350:
1347:
1344:
1341:
1338:
1335:
1332:
1329:
1326:
1323:
1320:
1317:
1314:
1311:
1308:
1305:
1300:
1296:
1293:
1290:
1287:
1284:
1281:
1278:
1275:
1272:
1269:
1266:
1263:
1260:
1257:
1254:
1251:
1248:
1245:
1242:
1237:
1233:
1230:
1227:
1224:
1221:
1218:
1215:
1212:
1209:
1206:
1203:
1200:
1197:
1194:
1191:
1188:
1185:
1182:
1180:
1176:
1172:
1169:
1166:
1163:
1160:
1157:
1154:
1151:
1148:
1145:
1142:
1139:
1136:
1133:
1130:
1127:
1124:
1121:
1119:
1116:
1110:
1106:
1103:
1100:
1097:
1094:
1091:
1088:
1085:
1082:
1079:
1076:
1073:
1070:
1067:
1064:
1061:
1058:
1055:
1053:
1050:
1044:
1040:
1037:
1034:
1031:
1028:
1025:
1022:
1019:
1016:
1013:
1010:
1007:
1004:
1001:
998:
995:
992:
989:
987:
984:
978:
974:
971:
968:
965:
962:
959:
956:
953:
950:
947:
944:
941:
938:
935:
932:
929:
926:
923:
921:
917:
913:
910:
907:
904:
901:
898:
895:
892:
889:
886:
883:
880:
877:
874:
871:
868:
865:
862:
860:
856:
852:
849:
846:
843:
840:
837:
834:
831:
828:
825:
822:
819:
816:
813:
810:
807:
804:
801:
798:
796:
792:
788:
784:
781:
778:
775:
772:
769:
766:
763:
760:
757:
754:
751:
748:
745:
742:
739:
736:
733:
732:
728:
725:
722:
719:
716:
713:
710:
707:
704:
701:
698:
695:
692:
689:
686:
683:
680:
677:
676:
672:
669:
666:
663:
660:
657:
654:
651:
648:
645:
642:
639:
636:
633:
630:
627:
624:
621:
620:
617:
611:
608:
605:
602:
599:
596:
593:
590:
587:
584:
581:
578:
575:
572:
569:
566:
563:
560:
559:
555:
552:
549:
546:
543:
540:
537:
534:
531:
528:
525:
522:
519:
516:
513:
510:
507:
504:
501:
500:
494:
480:
477:
474:
471:
468:
444:
440:
439:BCD 8421
436:
432:
422:
419:
416:
413:
410:
409:
405:
402:
399:
396:
393:
392:
388:
385:
382:
379:
376:
375:
371:
368:
365:
362:
359:
358:
354:
351:
348:
345:
342:
341:
337:
334:
331:
328:
325:
324:
320:
317:
314:
311:
308:
307:
303:
300:
297:
294:
291:
290:
286:
283:
280:
277:
274:
273:
269:
266:
263:
260:
257:
256:
252:
249:
246:
243:
242:
234:
231:
229:
221:
219:
217:
213:
209:
205:
201:
197:
193:
188:
186:
182:
178:
174:
170:
166:
161:
159:
154:
152:
148:
142:
137:
136:
131:
127:
123:
122:
116:
114:
109:
105:
101:
96:
94:
90:
86:
82:
79:encodings of
78:
74:
70:
66:
62:
54:
50:
46:
41:
37:
33:
19:
9428:BCD for Java
9413:. Retrieved
9405:
9387:. Retrieved
9379:
9354:. Retrieved
9349:
9329:
9310:
9301:
9288:
9277:
9262:. Retrieved
9232:
9228:
9190:
9163:
9150:van Nostrand
9145:
9133:. Retrieved
9096:
9080: (1972).
9064:
9060:
9051:
9039:. Retrieved
9032:the original
9027:
9015:
9003:. Retrieved
8975:
8963:. Retrieved
8935:
8924:. Retrieved
8917:the original
8904:
8880:
8870:
8864:
8840:
8833:
8822:. Retrieved
8798:
8787:. Retrieved
8762:
8751:. Retrieved
8742:
8729:
8679:
8673:. Retrieved
8653:
8646:
8635:. Retrieved
8619:
8613:
8601:. Retrieved
8581:
8573:the original
8563:
8545:
8528:
8514:
8501:
8480:
8474:
8461:
8455:
8415:
8406:
8372:
8366:
8356:
8345:. Retrieved
8320:
8314:
8271:
8234:
8228:
8222:
8210:. Retrieved
8206:the original
8177:
8171:
8146:. Retrieved
8142:the original
8113:
8107:
8081:
8075:
8067:
8057:
8051:
8040:. Retrieved
8031:
8006:
7998:
7992:. Retrieved
7938:0-07036981-X
7920:
7881:
7875:
7865:
7853:. Retrieved
7827:
7817:
7787:. Retrieved
7776:
7765:. Retrieved
7756:
7747:
7701:
7695:
7689:
7638:
7615:
7611:
7586:. Retrieved
7566:
7534:. Retrieved
7502:
7417:
7411:. Retrieved
7397:
7352:
7301:. Retrieved
7297:the original
7255:
7200:
7137:
7076:
7069:
7061:
7037:. Retrieved
7023:
7016:
7005:. Retrieved
6992:
6963:
6959:
6950:
6939:. Retrieved
6923:
6916:
6905:. Retrieved
6877:
6870:
6859:. Retrieved
6839:
6832:
6801:
6792:
6769:
6765:
6759:
6740:
6734:
6725:
6721:3-11011700-2
6707:
6703:
6677:3-11002793-3
6664:. Retrieved
6630:
6625:
6604:. Retrieved
6579:
6561:DEC RADIX 50
6519:
6502:
6485:
6476:
6463:
6330:
6311:
6309:
6289:
6274:
6255:
6227:
6225:is implied.
6215:
6207:
6183:
6172:
6166:
6162:
6160:
6156:
6152:
6150:
6144:
6142:
6065:
6060:
6046:
6023:
5998:
5989:
5979:
5969:
5959:
5938:Description
5924:
5884:
5831:
5790:
5782:
5778:
5763:
5745:
5739:January 2018
5736:
5726:
5719:
5712:
5705:
5693:
5673:
5643:
5637:January 2018
5634:
5623:Please help
5618:verification
5615:
5591:
5584:
5578:
5577:Please help
5574:
5326:
5322:
5312:series. The
5299:
5290:instructions
5283:
5258:
5247:
5242:
5238:
5232:
5226:
5218:
5205:
5200:
5196:
5192:
5188:
5184:
5180:
5176:
5174:
5169:
5165:
5161:
5157:
5153:
5149:
5145:
5141:
5137:
5133:
5129:
5125:
5121:
5117:
5113:
5109:
5105:
5102:punched card
5097:
5093:
5089:
5085:
5081:
5077:
5073:
5069:
5065:
5061:
5057:
5053:
5051:
5030:
5026:alphanumeric
5024:
5018:
5016:
4996:
4992:
4985:
4979:
4971:
4952:
4931:
4928:
4921:
4910:
4894:
4891:
4878:
4876:
4604:^ (*)
4601:} (*)
4288:Hexadecimal
4269:
4263:
4257:
4245:
4239:
4236:
4227:
4223:
4222:12 34 56 7C
4218:
4212:
4203:
4196:
4165:
4145:
4138:
4130:
4124:
4119:
4099:
4095:
4091:
4085:
4075:
4059:
4043:
4027:
4011:
3995:
3963:
3947:
3934:
3930:
3928:
3909:
3903:
3900:
3887:
3884:
3881:
3875:
3866:
3863:
3849:
3843:
3834:
3412:
3296:
3235:
3174:
3113:
3050:
2989:
2928:
2867:
2802:
2737:
2672:
2611:
2546:
2485:
2419:
2353:
2292:
2229:
2168:
2107:
2042:
1977:
1916:
1855:
1735:
1672:
1611:
1550:
1489:
1428:
1366:
1303:
1240:
1178:
1112:
1046:
980:
919:
858:
847:
794:
615:
438:
434:
430:
428:
227:
225:
210:and decimal
191:
189:
162:
155:
150:
146:
134:
119:
117:
107:
103:
97:
72:
68:
58:
45:binary clock
36:
9218:Katz, Randy
9010:(TS 23.003)
8970:(TS 24.501)
7823:Gray, Frank
7683:1st edition
7546: [
7444:=2 Δ
7292:333-13360-9
7056:to achieve
7052:applied as
6729:(320 pages)
6685:4th edition
6642: [
6497:(RAE) code.
6322:lower court
6252:Application
6242:significand
6223:radix point
6190:operator ID
6145:TBCD-STRING
5990:(overpunch)
5239:alphamerics
5219:alphamerics
5189:alphamerics
5140:, which is
5031:alphamerics
4987:following:
4949:Subtraction
4224:12 34.56 7+
4214:Fixed-point
3297:Susskind II
2740:Tompkins II
228:Natural BCD
208:fixed-point
139: [
53:sexagesimal
9437:Categories
9415:2016-01-02
9389:2016-01-02
9356:2016-01-02
9264:2012-04-25
9135:August 25,
9041:2022-05-22
9005:2022-02-26
8965:2022-02-26
8926:2013-06-27
8824:2015-08-14
8789:2015-08-15
8753:2016-01-03
8709:don't care
8675:2020-08-06
8637:2013-04-23
8608:(58 pages)
8603:2023-11-21
8401:(10 pages)
8347:2020-08-08
8212:2020-05-18
8148:2020-05-18
8042:2018-07-16
7994:2021-02-19
7980:07036981-X
7963:1033638267
7860:(13 pages)
7855:2020-08-05
7789:2008-02-11
7767:2020-08-04
7620:Telefunken
7588:2020-07-25
7536:2020-06-21
7413:2020-07-03
7303:2020-05-11
7058:odd parity
7050:parity bit
7039:2020-05-24
7007:2016-01-02
6968:ETH Zürich
6941:2015-08-05
6907:2015-08-05
6861:2015-08-05
6666:2020-04-13
6606:2015-07-01
6571:References
6557:IBM SQUOZE
6469:Aiken code
6064:developed
5801:Advantages
5709:newspapers
5676:references
5580:improve it
5481:0x11111110
5397:0x06666666
5308:, and the
5276:software.
5271:and later
5235:System/360
5177:8, 4, 2, 1
5041:, and non-
4955:subtrahend
4939:Intel 8080
4285:BCD digit
4134:endianness
4048:Preferred
4032:Preferred
3943:big endian
3931:packed BCD
3925:Packed BCD
3893:big-endian
3751:1111 0110
3748:0011 0110
3483:Aiken-Code
3236:Susskind I
2675:O'Brien II
2549:Tompkins I
459:1001'b
455:0110'b
451:1100'b
447:0110'b
222:Background
130:don't care
65:electronic
47:might use
9400:(2007) .
9374:(2014) .
9344:(2009) .
9207:misprints
9189:(1983) .
9046:(7 pages)
8397:206673385
8389:0367-9950
8255:(2 pages)
8251:0367-9950
8202:0367-9950
8130:0097-2452
8032:quadibloc
7947:2574-7916
7902:(5 pages)
7898:0010-8049
7892:: 87–91.
7810:slip ring
7742:(3 pages)
7730:0096-8390
7722:2162-6634
7669:75-131547
7624:(7 pages)
7000:(2015) .
6958:(1965) .
6333:algorithm
6270:IBM PC AT
6181:in TBCD.
6169:– 1) + 1
6070:telephony
6022:F1 F2 F3
5907:underflow
5586:talk page
5273:Power ISA
5158:(B,8,2,1)
5112:from the
4943:Zilog Z80
4881:code page
4080:Unsigned
2422:O'Brien I
2356:Petherick
204:long mode
67:systems,
61:computing
9255:Archived
9160:(1974).
9126:Archived
9122:77-90165
8996:Archived
8956:Archived
8893:Archived
8815:Archived
8780:Archived
8705:sign bit
8686:halfbyte
8666:Archived
8628:Archived
8594:Archived
8555:Archived
8446:89-77320
8341:Archived
8337:40879271
8217:(1 page)
8138:51657314
8036:Archived
7985:Archived
7971:5776493M
7955:59015055
7846:Archived
7761:Archived
7738:51674710
7622:: 13–19.
7579:Archived
7407:Archived
7150:62-14511
6984:65-14624
6824:73-80607
6660:Archived
6597:Archived
6418:tetrades
6343:See also
6260:in many
6137:1 1 1 1
6129:1 1 1 0
6121:1 1 0 1
6113:1 1 0 0
6105:1 0 1 1
6097:1 0 1 0
6089:8 4 2 1
6049:F1 F2 F3
5951:No sign
5947:Unsigned
5941:Example
5911:overflow
5903:infinity
5876:systems.
5810:Rounding
5520:>>
5502:>>
5367:uint32_t
5355:uint32_t
5346:uint32_t
5337:uint32_t
5250:IBM 1130
5216:IBM 7074
5212:IBM 7072
5208:IBM 7070
5154:(11,8,3)
5116:through
5108:through
5088:through
5072:through
5035:IBM 1620
4913:addition
4907:Addition
4883:setting.
3937:), each
3911:Shifting
3844:Unpacked
3539:IBM 1401
3533:IBM 7080
3478:Excess-3
3175:Kautz II
2486:5-cyclic
1115:Excess-6
1049:Excess-3
443:Excess-3
121:tetrades
113:Excess-3
104:unpacked
9220:(ed.).
8508:. 1985.
8487:. 1983.
7479:code II
7136:(ed.).
6986:. 0978.
6584:Intel.
6533:Stibitz
6430:Chen–Ho
6366:Bitmask
6082:Decimal
6001:1 F2 F3
5723:scholar
5261:IBM Db2
5248:On the
5243:numeric
5146:(B,A,1)
4959:minuend
4957:to the
4871:
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3521:IBM 702
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3474:Stibitz
3468:
3464:
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3415:decimal
3114:Kautz I
2424:(Watts)
848:Decimal
535: 9
532: 8
529: 7
526: 6
523: 5
520: 4
517: 3
514: 2
511: 1
508: 0
81:decimal
9317:
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9110:
9078:63, 72
9069:,
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7475:code I
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7403:I.R.E.
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6326:patent
6316:, the
6266:MC6818
6084:digit
5978:F1 F2
5958:F1 F2
5953:nibble
5913:, and
5861:Adders
5836:binary
5725:
5718:
5711:
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5696:
5532:return
5340:BCDadd
5304:, the
5269:POWER6
5214:, and
5199:, and
5142:(12,1)
4941:, the
4343:~ (*)
4317:\ (*)
4311:{ (*)
3984:Notes
3973:digit
3955:EBCDIC
3939:nibble
3904:012345
3854:nibble
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3566:EBCDIC
3485:or BCD
3453:Digit
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2212:
2203:
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2188:
2179:
2157:
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2145:
2142:
2139:
2136:
2108:Ledley
2096:
2093:
2090:
2084:
2081:
2078:
2045:Glixon
1966:
1963:
1954:
1951:
1945:
1921:
1905:
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1899:
1896:
1893:
1860:
1796:
1779:
1773:
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1051:(XS-3)
1020:
1017:
1014:
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1008:
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966:
963:
960:
957:
945:
616:Binary
505:Weight
192:per se
179:, the
126:nibble
108:packed
77:binary
9352:. IBM
9278:HP-UX
9258:(PDF)
9225:(PDF)
9129:(PDF)
9101:(PDF)
9073:
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9024:(PDF)
8999:(PDF)
8984:(PDF)
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8669:(PDF)
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8631:(PDF)
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8537:(PDF)
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8333:S2CID
8180:(3).
8134:S2CID
7988:(PDF)
7925:(PDF)
7884:(3).
7849:(PDF)
7832:(PDF)
7734:S2CID
7718:eISSN
7582:(PDF)
7571:(PDF)
7550:]
7428:and δ
6962:[
6768:[
6706:[
6646:]
6629:[
6600:(PDF)
6593:Intel
6589:(PDF)
6549:words
6535:code.
6512:Watts
6426:Hertz
6399:Notes
6383:(DPD)
6362:(BID)
6356:(BCT)
6230:Hertz
6179:21 43
5935:Type
5927:COBOL
5915:error
5730:JSTOR
5716:books
5478:&
5314:Intel
5179:plus
5170:(8,2)
5013:BCDIC
4168:COBOL
4152:ASCII
3981:Sign
3888:12345
3837:bytes
3823:1001
3820:1111
3817:1111
3814:1100
3811:1001
3797:1000
3794:1000
3791:1110
3788:1011
3785:1000
3771:0111
3768:1001
3765:1101
3762:1010
3759:0111
3745:0110
3742:1010
3739:1100
3736:1001
3733:0110
3719:0101
3716:1011
3713:1011
3710:1000
3707:0101
3693:0100
3690:0100
3687:0100
3684:0111
3681:0100
3667:0011
3664:0101
3661:0011
3658:0110
3655:0011
3641:0010
3638:0110
3635:0010
3632:0101
3629:0010
3615:0001
3612:0111
3609:0001
3606:0100
3603:0001
3589:1010
3586:0000
3583:0000
3580:0011
3577:0000
3559:ASCII
3052:Lucal
2358:(RAE)
983:Aiken
437:) or
185:68000
143:]
124:(the
85:digit
55:time.
9334:IEEE
9315:ISBN
9293:IEEE
9245:ISBN
9195:ISBN
9184:and
9174:ISBN
9137:2019
9118:LCCN
9108:ISBN
9075:U.S.
8992:3GPP
8990:and
8988:ETSI
8952:3GPP
8950:and
8948:ETSI
8850:ISBN
8776:IEEE
8442:LCCN
8432:ISBN
8385:ISSN
8373:EC-8
8321:C-26
8247:ISSN
8235:EC-4
8198:ISSN
8178:EC-5
8126:ISSN
7959:OCLC
7951:LCCN
7943:ISSN
7933:ISBN
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7726:ISSN
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7665:LCCN
7655:ISBN
7524:ISBN
7448:=15
7440:. δ
7361:ISBN
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7146:LCCN
7086:ISBN
7046:8421
6980:LCCN
6929:ISBN
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6820:LCCN
6810:ISBN
6778:ISBN
6745:ISBN
6716:ISBN
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6650:ISBN
6559:and
6529:Gray
6523:The
6506:The
6489:The
6467:The
6275:The
6258:BIOS
6256:The
6232:and
6228:The
6213:10.
6198:IMSI
6194:IMEI
6175:1234
6087:TBCD
6066:TBCD
6062:3GPP
5702:news
5302:6502
5267:and
5254:1800
5252:and
5124:and
5096:and
5080:and
5056:and
4877:(*)
4244:and
4172:PL/I
4088:word
3971:Sign
3933:(or
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2293:Klar
2231:LARC
1980:Gray
1917:Paul
795:Name
435:SBCD
239:BCD
190:BCD
100:byte
93:sign
89:bits
63:and
49:LEDs
9410:IBM
9384:IBM
9237:doi
9071:409
8693:FPU
8690:x87
8466:IBM
8377:doi
8325:doi
8294:MIT
8239:doi
8190:doi
8118:doi
7975:SBN
7710:doi
7647:doi
7516:doi
7287:SBN
7269:doi
6976:IBM
6887:doi
6551:on
6434:DPD
6432:or
6040:'−'
6038:or
6036:'+'
6016:'−'
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5820:XML
5678:to
5627:by
5310:x86
5286:VAX
5227:not
5007:IBM
4853:B9
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5832:n
5830:(
5828:O
5770:)
5764:(
5752:)
5746:(
5741:)
5737:(
5727:·
5720:·
5713:·
5706:·
5683:.
5650:)
5644:(
5639:)
5635:(
5621:.
5596:)
5592:(
5550:}
5544:;
5538:-
5523:3
5514:(
5511:|
5508:)
5505:2
5496:(
5493:=
5484:;
5472:~
5469:=
5460:;
5454:^
5448:=
5439:;
5436:b
5433:+
5427:=
5418:;
5415:b
5412:^
5406:=
5400:;
5394:+
5391:a
5388:=
5379:;
5373:,
5364:{
5361:)
5358:b
5352:,
5349:a
5343:(
5330:C
5201:0
5185:C
5181:F
5166:0
5162:0
5138:A
5134:A
5130:B
5126:A
5122:B
5118:9
5114:1
5110:1
5106:8
5098:A
5094:B
5090:1
5086:8
5082:A
5078:B
5074:9
5070:1
5066:M
5062:C
4120:d
4118:(
4113:2
4110:/
4107:1
4100:d
4096:n
4092:n
4076:+
4060:+
4044:−
4028:+
4012:−
3996:+
3949:(
3856:(
3551:2
3547:4
3543:8
3508:4
3504:8
3495:2
3491:4
3487:2
3466:2
3462:4
3458:8
3437:4
3431:1
3427:2
3423:4
3419:8
3387:9
3384:8
3381:7
3378:6
3375:5
3372:4
3369:3
3366:2
3363:1
3360:0
3346:7
3343:6
3337:5
3334:2
3331:3
3325:4
3322:8
3316:9
3310:1
3304:0
3285:7
3282:6
3276:5
3273:8
3267:9
3261:2
3258:3
3255:4
3249:1
3243:0
3221:5
3218:0
3212:7
3209:6
3203:8
3200:2
3197:3
3191:1
3185:4
3182:9
3163:4
3157:6
3154:8
3148:9
3145:7
3139:3
3136:1
3133:5
3127:2
3118:0
3102:5
3093:4
3090:9
3087:6
3084:7
3081:8
3075:2
3072:3
3066:1
3057:0
3039:9
3027:5
3024:6
3021:7
3018:8
3015:1
3012:2
3009:3
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2994:0
2975:7
2972:8
2969:9
2963:4
2960:5
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2945:3
2933:0
2917:6
2914:7
2908:9
2905:8
2902:4
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2850:6
2847:5
2841:9
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2829:1
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2823:4
2817:0
2785:6
2782:5
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2714:8
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2699:3
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2684:0
2661:5
2658:6
2655:7
2652:8
2643:9
2634:4
2625:3
2622:2
2619:1
2616:0
2600:6
2597:5
2594:7
2591:8
2582:9
2573:4
2564:2
2561:3
2558:1
2555:0
2532:9
2523:7
2520:8
2517:6
2514:5
2508:4
2499:2
2496:3
2493:1
2490:0
2471:5
2462:7
2459:6
2456:8
2453:9
2447:4
2438:2
2435:3
2432:1
2429:0
2405:5
2402:9
2396:7
2393:6
2390:8
2381:4
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2372:2
2369:3
2366:1
2342:6
2339:5
2330:7
2324:8
2321:9
2318:3
2315:4
2306:2
2300:1
2297:0
2281:8
2278:9
2269:7
2263:6
2260:5
2257:3
2254:4
2245:2
2239:1
2236:0
2218:9
2215:8
2209:7
2206:6
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2185:3
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2154:9
2148:8
2133:5
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2124:7
2121:2
2118:3
2115:1
2112:0
2087:8
2075:9
2072:4
2069:5
2066:7
2063:6
2060:2
2057:3
2054:1
2051:0
2025:9
2022:8
2007:4
2004:5
2001:7
1998:6
1995:2
1992:3
1989:1
1986:0
1960:9
1957:8
1948:0
1942:4
1939:5
1936:7
1933:6
1930:2
1927:3
1924:1
1890:0
1887:9
1884:8
1881:7
1878:6
1875:5
1872:4
1869:3
1866:2
1863:1
1826:9
1823:8
1820:7
1817:6
1814:5
1811:4
1808:3
1805:2
1802:1
1799:0
1785:9
1782:8
1776:7
1770:6
1764:5
1761:4
1755:3
1749:2
1743:1
1740:0
1724:9
1718:8
1712:7
1706:6
1703:5
1700:4
1694:3
1688:2
1682:1
1679:0
1655:9
1652:8
1649:7
1643:6
1640:5
1631:4
1628:3
1625:2
1619:1
1616:0
1600:9
1588:8
1585:7
1582:6
1579:5
1576:4
1564:3
1561:2
1558:1
1555:0
1536:9
1527:8
1524:7
1521:6
1518:5
1512:4
1503:3
1500:2
1497:1
1494:0
1469:9
1466:8
1463:7
1460:6
1457:5
1445:4
1442:3
1439:2
1436:1
1433:0
1417:9
1414:8
1405:7
1402:6
1393:5
1390:4
1381:3
1378:2
1375:1
1372:0
1354:9
1351:8
1348:7
1345:6
1330:5
1327:4
1318:3
1315:2
1312:1
1309:0
1291:9
1288:8
1267:7
1264:6
1261:5
1258:4
1255:3
1252:2
1249:1
1246:0
1228:9
1225:8
1222:7
1219:6
1216:5
1213:4
1210:3
1207:2
1186:1
1183:0
1167:9
1164:8
1161:7
1158:6
1155:5
1152:4
1149:3
1146:2
1143:1
1140:0
1092:9
1089:8
1086:7
1083:6
1080:5
1077:4
1074:3
1071:2
1068:1
1065:0
1035:9
1032:8
1029:7
1026:6
1023:5
1002:4
999:3
996:2
993:1
990:0
954:9
951:8
948:7
942:6
939:5
936:4
933:3
930:2
927:1
924:0
890:9
887:8
884:7
881:6
878:5
875:4
872:3
869:2
866:1
863:0
826:9
823:8
820:7
817:6
814:5
811:4
808:3
805:2
802:1
799:0
782:0
779:1
776:0
773:1
770:0
767:1
764:0
761:1
758:0
755:1
752:0
749:1
746:0
743:1
740:0
737:1
734:1
726:1
723:0
720:0
717:1
714:1
711:0
708:0
705:1
702:1
699:0
696:0
693:1
690:1
687:0
684:0
681:2
678:2
670:1
667:1
664:1
661:0
658:0
655:0
652:0
649:1
646:1
643:1
640:1
637:0
634:0
631:0
628:0
625:4
622:3
612:1
609:1
606:1
603:1
600:1
597:1
594:1
591:1
588:0
585:0
582:0
579:0
576:0
573:0
570:0
567:0
564:8
561:4
481:9
478:=
475:3
472:+
469:6
461:(
433:(
420:0
417:0
414:1
411:9
403:0
400:0
397:1
394:8
386:1
383:1
380:0
377:7
369:1
366:1
363:0
360:6
352:0
349:1
346:0
343:5
335:0
332:1
329:0
326:4
318:1
315:0
312:0
309:3
301:1
298:0
295:0
292:2
284:0
281:0
278:0
275:1
267:0
264:0
261:0
258:0
250:2
247:4
244:8
71:(
34:.
20:)
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