Realizing the V80 and its system support functions

Author

Kaneko, Hiroaki ; Suzuki, Nariko ; Wabuka, Hiroshi ; Maemura, Koji

Author_Institution

NEC Corp., Kanagawa, Japan

Volume

10

Issue

2

fYear

1990

fDate

4/1/1990 12:00:00 AM

Firstpage

56

Lastpage

69

Abstract

An overview is given of the architecture of an overall design considerations for the 11-unit, 32-b V80 microprocessor, which includes two 1-kB cache memories and a branch prediction mechanism that is a new feature for microprocessors. The V80´s pipeline processing and system support functions for multiprocessor and high-reliability systems are discussed. Using V80 support functions, multiprocessor and high-reliability systems were realized without any performance drop. Cache memories and a branch prediction mechanism were used to improve pipeline processing. Various hardware facilities replaced the usual microprogram to ensure high performance.<>

Keywords

fault tolerant computing; microprocessor chips; parallel architectures; parallel machines; pipeline processing; 1 kB; 1-kB cache memories; 25 MHz; 32 bit; 32-b V80 microprocessor; 33 MHz; branch prediction mechanism; high-reliability systems; multiprocessor; pipeline processing; system support functions; Cache memory; Microcomputers; Microprocessors; National electric code; Office automation; Operating systems; Pipeline processing; Real time systems; Registers; System software;

fLanguage

English

Journal_Title

Micro, IEEE

Publisher

ieee

ISSN

0272-1732

Type

jour

DOI

10.1109/40.52947

Filename

52947