SE8100735L - DIGITAL PROCESSOR DEVICE - Google Patents
DIGITAL PROCESSOR DEVICEInfo
- Publication number
- SE8100735L SE8100735L SE8100735A SE8100735A SE8100735L SE 8100735 L SE8100735 L SE 8100735L SE 8100735 A SE8100735 A SE 8100735A SE 8100735 A SE8100735 A SE 8100735A SE 8100735 L SE8100735 L SE 8100735L
- Authority
- SE
- Sweden
- Prior art keywords
- processor
- during
- processor cycle
- cycle
- digital processor
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/30—Arrangements for executing machine instructions, e.g. instruction decode
- G06F9/30003—Arrangements for executing specific machine instructions
- G06F9/30072—Arrangements for executing specific machine instructions to perform conditional operations, e.g. using predicates or guards
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/30—Arrangements for executing machine instructions, e.g. instruction decode
- G06F9/38—Concurrent instruction execution, e.g. pipeline or look ahead
- G06F9/3836—Instruction issuing, e.g. dynamic instruction scheduling or out of order instruction execution
- G06F9/3842—Speculative instruction execution
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
- H01G9/20—Light-sensitive devices
Landscapes
- Engineering & Computer Science (AREA)
- Software Systems (AREA)
- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Advance Control (AREA)
- Executing Machine-Instructions (AREA)
Abstract
A pipelined digital processor includes control circuits which during a first processor cycle decode a single conditional instruction for controlling performance of a specific condition test during the next (second) processor cycle and decode another instruction word during the second processor cycle for controlling all processing section operations during the subsequent (third) processor cycle. A circuit performs the condition test by comparing conditions existing in the digital processor during the second processor cycle with the specific condition information included in the conditional instruction for selectively disabling control of at least one section of the digital processor during the third processor cycle depending on the result of the condition test. As described the processor is a multiplier using Booth's algorithm. The pipelined sections include a multiplier forming succcessive partial products, an accumulator accumulating those products, and a rounding circuit to round the accumulated product.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US12005980A | 1980-02-11 | 1980-02-11 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| SE8100735L true SE8100735L (en) | 1981-08-12 |
| SE456051B SE456051B (en) | 1988-08-29 |
Family
ID=22388030
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE8100735A SE456051B (en) | 1980-02-11 | 1981-01-30 | DIGITAL PROCESSOR DEVICE PROVIDED FOR PIPELINE DATA PROCESSING OPERATIONS |
Country Status (10)
| Country | Link |
|---|---|
| JP (1) | JPS56149648A (en) |
| BE (1) | BE887451A (en) |
| CA (1) | CA1155231A (en) |
| DE (1) | DE3104256A1 (en) |
| ES (1) | ES8201745A1 (en) |
| FR (1) | FR2475763A1 (en) |
| GB (1) | GB2069733B (en) |
| IT (1) | IT1135394B (en) |
| NL (1) | NL8100631A (en) |
| SE (1) | SE456051B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4589065A (en) * | 1983-06-30 | 1986-05-13 | International Business Machines Corporation | Mechanism for implementing one machine cycle executable trap instructions in a primitive instruction set computing system |
| GB8401807D0 (en) * | 1984-01-24 | 1984-02-29 | Int Computers Ltd | Pipelined data processing apparatus |
| US4755966A (en) * | 1985-06-28 | 1988-07-05 | Hewlett-Packard Company | Bidirectional branch prediction and optimization |
| JP3881763B2 (en) * | 1998-02-09 | 2007-02-14 | 株式会社ルネサステクノロジ | Data processing device |
| GB2343973B (en) * | 1998-02-09 | 2000-07-12 | Mitsubishi Electric Corp | Data processing device for scheduling conditional operation instructions in a program sequence |
| CN113485748B (en) * | 2021-05-31 | 2022-08-12 | 上海卫星工程研究所 | Satellite condition instruction system and execution method thereof |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3728692A (en) * | 1971-08-31 | 1973-04-17 | Ibm | Instruction selection in a two-program counter instruction unit |
| BE789583A (en) * | 1971-10-01 | 1973-02-01 | Sanders Associates Inc | PROGRAM CONTROL APPARATUS FOR DATA PROCESSING MACHINE |
-
1981
- 1981-01-30 SE SE8100735A patent/SE456051B/en not_active IP Right Cessation
- 1981-02-07 DE DE3104256A patent/DE3104256A1/en active Granted
- 1981-02-09 FR FR8102496A patent/FR2475763A1/en active Granted
- 1981-02-10 IT IT19634/81A patent/IT1135394B/en active
- 1981-02-10 JP JP1758681A patent/JPS56149648A/en active Granted
- 1981-02-10 CA CA000370508A patent/CA1155231A/en not_active Expired
- 1981-02-10 ES ES499277A patent/ES8201745A1/en not_active Expired
- 1981-02-10 BE BE0/203750A patent/BE887451A/en unknown
- 1981-02-10 NL NL8100631A patent/NL8100631A/en not_active Application Discontinuation
- 1981-02-11 GB GB8104139A patent/GB2069733B/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| IT8119634A0 (en) | 1981-02-10 |
| DE3104256A1 (en) | 1982-03-18 |
| CA1155231A (en) | 1983-10-11 |
| NL8100631A (en) | 1981-09-01 |
| IT1135394B (en) | 1986-08-20 |
| GB2069733A (en) | 1981-08-26 |
| SE456051B (en) | 1988-08-29 |
| DE3104256C2 (en) | 1991-06-27 |
| FR2475763B1 (en) | 1984-05-04 |
| JPS619648B2 (en) | 1986-03-25 |
| FR2475763A1 (en) | 1981-08-14 |
| ES499277A0 (en) | 1982-01-16 |
| GB2069733B (en) | 1984-09-12 |
| JPS56149648A (en) | 1981-11-19 |
| ES8201745A1 (en) | 1982-01-16 |
| BE887451A (en) | 1981-06-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| NUG | Patent has lapsed |
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