PA-8000
Sign in to savethumb|A HP PA-8000 microprocessor The PA-8000 (PCX-U), code-named Onyx, is a microprocessor developed and fabricated by Hewlett-Packard (HP) that implemented the PA-RISC 2.0 instruction set architecture (ISA). It was a completely new design with no circuitry derived from previous PA-RISC microprocessors. The PA-8000 was introduced on 2 November 1995 when shipments began to members of the Precision RISC Organization (PRO). It was used exclusively by PRO members and was not sold on the merchant market. All follow-on PA-8x00 processors (PA-8200 to PA-8900, described further below) are based on th
~19 min read
Encyclopedic overview
20 sectionsContents
- Description
- Instruction fetch unit
- Branch prediction
- Instruction cache
- Decode, and the instruction reorder buffer
- Execution
- Translation lookaside buffer
- Data cache
- Runway bus
- Physical
- PA-8200
- PA-8500
- PA-8600
- PA-8700
- PA-8700+
- PA-8800
- PA-8900
- Notes
- References
- Further reading
thumb|A HP PA-8000 microprocessor The PA-8000 (PCX-U), code-named Onyx, is a microprocessor developed and fabricated by Hewlett-Packard (HP) that implemented the PA-RISC 2.0 instruction set architecture (ISA). It was a completely new design with no circuitry derived from previous PA-RISC microprocessors. The PA-8000 was introduced on 2 November 1995 when shipments began to members of the Precision RISC Organization (PRO). It was used exclusively by PRO members and was not sold on the merchant market. All follow-on PA-8x00 processors (PA-8200 to PA-8900, described further below) are based on the basic PA-8000 processor core.
The PA-8000 was used by: HP in its HP 9000 and HP 3000 workstations and servers NEC in its TX7/P590 server Stratus Technologies in its Continuum fault-tolerant servers
Excerpted from Wikipedia’s “PA-8000” article, available under the CC BY-SA 4.0 licence.