Risc type microprocessor and information processing apparatus
US6256701A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 20, 1998 |
| Grant date | Jul 3, 2001 |
| Priority date | — |
| Expiry date | Feb 20, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F9/3877
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A RISC type microprocessor for implementing multi-stage pipeline processing. The RISC type microprocessor includes mode allocating means, interrupt controlling means and a jump instruction table. The mode allocating means is used for allocating a first mode for cyclically executing processes corresponding to a plurality of interrupts at predetermined intervals or a second mode for successively executing the processes corresponding to the interrupts. The interrupt controlling means is used for controlling the interrupts corresponding to the mode allocated by the mode allocating means, and is operable to save particular information to a stack upon occurrence of an interrupt and to fetch the particular information from the stack upon completion of the interrupt process. The jump instruction table is used in processing interrupts without stopping the multi-stage pipeline processing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.