Linking scalar results directly to scalar operation inputs on a bidirectional databus in a computer which superpositions vector and scalar operations
US4837730A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 6, 1987 |
| Grant date | Jun 6, 1989 |
| Priority date | — |
| Expiry date | Feb 6, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F15/8084
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
In a computer which superpositions vector and scalar operations and in which operation results and operands are conducted between buffer registers and functional units on a bidirectional databus system, the result of one or more currently-executing scalar operations can be routed directly to the input of one or more functional units, bypassing the buffer registers and saving computer operational time. A scalar result is routed through a linking apparatus which directly connects a bidirectional databus path on which the scalar result is being conducted to a databus path on which a scalar operand is to be conducted. The routing is conditioned upon identity between the scalar result and operand and upon availability of a databus path to support the scalar operation. If the conditions are not met, the scalar result is conducted to the buffer registers, where it is held until needed or until a databus path is available.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.