JPS6410327A - Floating point arithmetic processor - Google Patents
Floating point arithmetic processorInfo
- Publication number
- JPS6410327A JPS6410327A JP16536587A JP16536587A JPS6410327A JP S6410327 A JPS6410327 A JP S6410327A JP 16536587 A JP16536587 A JP 16536587A JP 16536587 A JP16536587 A JP 16536587A JP S6410327 A JPS6410327 A JP S6410327A
- Authority
- JP
- Japan
- Prior art keywords
- function
- stores
- floating point
- point arithmetic
- arithmetic processor
- 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
Landscapes
- Complex Calculations (AREA)
Abstract
PURPOSE:To increase the function arithmetic speed by using a means which stores a coefficient function an(X') where f(X) is expressed only in the approximate value X' of X. CONSTITUTION:The f(X) is shown as a simple approximation formula of Taylor's expansion in f(X) a0(X')+a1(X').X and a0(X')=f(X')-f'(X').X' and a1(X')=f'(X) are obtained from the Taylor's expansion. A table memory 3 stores a coefficient function a0(X'); while a table memory 4 stores a coefficient function a1(X') respectively. When the addresses corresponding to X; are applied to both memories 3 and 4 from registers 5 and 6, a0(X') and a1(X') are read out. Then the function value of f(X) is calculated by an arithmetic executing unit 1 under the control of a microsequencer 2. Thus the basic arithmetic frequency is minimized for acquisition of the function f(X).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16536587A JPH0782431B2 (en) | 1987-07-03 | 1987-07-03 | Floating point processor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16536587A JPH0782431B2 (en) | 1987-07-03 | 1987-07-03 | Floating point processor |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6410327A true JPS6410327A (en) | 1989-01-13 |
JPH0782431B2 JPH0782431B2 (en) | 1995-09-06 |
Family
ID=15810983
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16536587A Expired - Fee Related JPH0782431B2 (en) | 1987-07-03 | 1987-07-03 | Floating point processor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0782431B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1998004894A1 (en) * | 1996-07-29 | 1998-02-05 | Honeywell Inc. | Method and apparatus for increasing update rates in measurement instruments |
-
1987
- 1987-07-03 JP JP16536587A patent/JPH0782431B2/en not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1998004894A1 (en) * | 1996-07-29 | 1998-02-05 | Honeywell Inc. | Method and apparatus for increasing update rates in measurement instruments |
Also Published As
Publication number | Publication date |
---|---|
JPH0782431B2 (en) | 1995-09-06 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
LAPS | Cancellation because of no payment of annual fees |