JPS60164247U - Rounding calculation circuit - Google Patents
Rounding calculation circuitInfo
- Publication number
- JPS60164247U JPS60164247U JP4654684U JP4654684U JPS60164247U JP S60164247 U JPS60164247 U JP S60164247U JP 4654684 U JP4654684 U JP 4654684U JP 4654684 U JP4654684 U JP 4654684U JP S60164247 U JPS60164247 U JP S60164247U
- Authority
- JP
- Japan
- Prior art keywords
- rounding
- rounding operation
- operation mode
- specifying means
- specified
- 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.)
- Pending
Links
Landscapes
- Calculators And Similar Devices (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は本考案の一実施例を示すブロック図、第２図は
上記実施例に於ける丸め演算の指定データとその演算モ
ードとの対応関係を示す図、第３図は上記実施例の動作
説明図である。
１０・・・・・・キー人力部、１１・・・・・・丸め演
算指定キー、１２・・・・・・第１の丸め演算モードス
イッチ１２．１３・・・・・・第２の丸め演算モードス
イッチ１３．１４，１５・・・・・・ラッチ回路、１６
・・・・・・Ｘレジスタ、１７−−−−−−Ｙレジスタ
、１８ ｖ １９ ＊ ＧａｙＧｂ、 Ｇａｌ、 Ｇ
ａ２． Ｇａ３． Ｇｂｌ、 Ｇｂｌ、 Ｇｂ３−・・
・ゲート回路、２０・・・・・・丸め演算処理部。FIG. 1 is a block diagram showing an embodiment of the present invention, FIG. 2 is a diagram showing the correspondence between the specified data of the rounding operation and its operation mode in the above embodiment, and FIG. It is an operation explanatory diagram. 10... Key human power section, 11... Rounding operation designation key, 12... First rounding operation mode switch 12.13... Second rounding Calculation mode switch 13, 14, 15... Latch circuit, 16
・・・・・・X register, 17---Y register, 18 v 19 *GayGb, Gal, G
a2. Ga3. Gbl, Gbl, Gb3-...
・Gate circuit, 20... Rounding operation processing section.
Claims (1)
算を［四捨五入／切上げ〆切捨て］の何れの演算モード
で実行するかを指定する第１の丸め演算モード指定手段
、及びこの第１の丸め演算モード指定手段の指定モード
に従う丸め演算処理を［有効桁数指定／桁位置指定コの
何れの桁指定で実行するかを指定する第２の丸め演算モ
ード指定手段と、前記第１、及び第２の丸め演算モード
指定手段で指定された丸め演算モードの組合わせに従い
、指定された丸め演算を実行する丸め演算処理部とを具
備してなることを特徴とする丸め演算回路。In a small electronic calculator having a rounding function, a first rounding operation mode specifying means for specifying in which operation mode of [rounding/rounding up/down] a rounding operation is to be performed, and the first rounding a second rounding operation mode specifying means for specifying which digit designation among the number of effective digits and digit position specification is to be used to execute the rounding operation according to the specified mode of the operation mode specifying means; 2. A rounding operation circuit comprising: a rounding operation processing section that executes a specified rounding operation in accordance with the combination of rounding operation modes specified by the rounding operation mode specifying means of item 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4654684U JPS60164247U (en) | 1984-03-30 | 1984-03-30 | Rounding calculation circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4654684U JPS60164247U (en) | 1984-03-30 | 1984-03-30 | Rounding calculation circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60164247U true JPS60164247U (en) | 1985-10-31 |
Family
ID=30561042
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4654684U Pending JPS60164247U (en) | 1984-03-30 | 1984-03-30 | Rounding calculation circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60164247U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62150431A (en) * | 1985-12-23 | 1987-07-04 | Nec Corp | Rounding designation system |
| US7030776B2 (en) | 2003-02-28 | 2006-04-18 | Denso Corporation | On-vehicle device including numerical information notification function |
-
1984
- 1984-03-30 JP JP4654684U patent/JPS60164247U/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62150431A (en) * | 1985-12-23 | 1987-07-04 | Nec Corp | Rounding designation system |
| US7030776B2 (en) | 2003-02-28 | 2006-04-18 | Denso Corporation | On-vehicle device including numerical information notification function |
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