RISC type microprocessor and information processing apparatus
US6314508A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 20, 1998 |
| Grant date | Nov 6, 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 general purpose register stores a 16-bit fixed length instruction. A bypass circuit speedily outputs the result of a comparison instruction when the next conditional branch instruction is executed. An ALU performs a logic process and so forth. A high speed multiplying device/high speed dividing device performs an arithmetic operation at high speed. An address calculating portion calculates an address. An instruction decoder/pipeline controlling portion decodes an instruction and controls a pipeline. A dedicated control register is used as an interrupt stack pointer or the like. An interrupt controller performs a multiple interrupt process. A coprocessor bus is disposed independently from a data bus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.