JPS5520533A - Decimal correction circuit - Google Patents
Decimal correction circuitInfo
- Publication number
- JPS5520533A JPS5520533A JP9282678A JP9282678A JPS5520533A JP S5520533 A JPS5520533 A JP S5520533A JP 9282678 A JP9282678 A JP 9282678A JP 9282678 A JP9282678 A JP 9282678A JP S5520533 A JPS5520533 A JP S5520533A
- Authority
- JP
- Japan
- Prior art keywords
- correction
- subtraction
- addition
- circuit
- logic circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Abstract
PURPOSE: To decrease the number of the logic elements as well as to shorten the time required for correction by simplifying the constitution of the logic circuit which is used for the correction circuit in the parallel decimal adder/subtractor using the binary coded decimal code.
CONSTITUTION: Two binary coded decimal (BCD) codes perform the hexadecimal addition and subtraction by the indication of the addition or subtraction and then delivers hexadecimal carry (or borrow) signal Cn' plus each weight addition/subtraction output S'1, S'2, S'4 and S'8 to then supply these to the correction circuit for correction into the BCD codes. The correction circuit gives the indication for the correction of addition or subtraction via control signal G2 and G3. And in the case of addition, decimal carry signal C'n+1 is obtained through the logic circuit of C'n+S'8(S'+S'2) with S'1 delivered directly. While weight correction output S2 of 2 is obtained through the logic circuit of S'2.anti-Cn+1+anti-S2.Cn+1. After this, weight correction output S4 and S8 of 4 and 8 are obtained also through the logic circuit, attaining the correction for subtraction in the same way.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9282678A JPS5520533A (en) | 1978-07-28 | 1978-07-28 | Decimal correction circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9282678A JPS5520533A (en) | 1978-07-28 | 1978-07-28 | Decimal correction circuit |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5520533A true JPS5520533A (en) | 1980-02-14 |
JPS6129019B2 JPS6129019B2 (en) | 1986-07-03 |
Family
ID=14065230
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9282678A Granted JPS5520533A (en) | 1978-07-28 | 1978-07-28 | Decimal correction circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5520533A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5592944A (en) * | 1979-01-03 | 1980-07-14 | Honeywell Inf Systems | Binaryycoded decimal corrector |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5248045A (en) * | 1975-10-15 | 1977-04-16 | Ozawa Jiyuichirou | Thinnfilm fuse resistor |
-
1978
- 1978-07-28 JP JP9282678A patent/JPS5520533A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5248045A (en) * | 1975-10-15 | 1977-04-16 | Ozawa Jiyuichirou | Thinnfilm fuse resistor |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5592944A (en) * | 1979-01-03 | 1980-07-14 | Honeywell Inf Systems | Binaryycoded decimal corrector |
JPS5917457B2 (en) * | 1979-01-03 | 1984-04-21 | ハネイウエル・インフオメ−シヨン・システムス・インコ−ポレ−テツド | Binary coded decimal correction device |
Also Published As
Publication number | Publication date |
---|---|
JPS6129019B2 (en) | 1986-07-03 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS5759121A (en) | Counting method | |
JPS5520533A (en) | Decimal correction circuit | |
JPS5225505A (en) | Convollition cyclic code receiving system | |
JPS5380916A (en) | Terminal unit | |
JPS5280870A (en) | Electronic watch | |
JPS5396630A (en) | Multi-item input unit | |
JPS53112627A (en) | Division control system | |
JPS5227674A (en) | Digital multimeter | |
JPS5426631A (en) | Inspection system of rom | |
JPS535384A (en) | Operation instruction circuit | |
JPS5624646A (en) | Divider | |
JPS51138475A (en) | Apparatus for presetting tare in electronic digital indication weighting machine | |
JPS5310452A (en) | Digital indication | |
JPS52122155A (en) | Wristwatch with calculator | |
JPS51144055A (en) | Manhole covering made of iron | |
JPS5311334A (en) | Microwave heater | |
JPS5380933A (en) | Decimal correction circuit | |
JPS5420614A (en) | Coding circuit | |
JPS5412531A (en) | Binary decimal code conversion unit | |
JPS5520512A (en) | Binary/bcd conversion circuit of real variable | |
JPS5333535A (en) | Information processor | |
JPS51148968A (en) | Waste water treatment | |
JPS51120137A (en) | End code loading system | |
JPS52144922A (en) | Numeric input unit | |
JPS52155791A (en) | Construction of balustrade for man conveyor |