Pegasus-an ASIC implementation of high-performance PROLOG processor

Author

Yokota, Takashi ; Seo, Kazuo

Author_Institution

Central Res. Lab., Mitsubishi Electr. Corp., Amagasaki, Japan

fYear

1990

fDate

29 May-1 Jun 1990

Firstpage

156

Lastpage

159

Abstract

Pegasus is a single chip RISC microprocessor dedicated to the PROLOG language. Although implementing many ideas for the fast execution of PROLOG programs, its datapath and control are still kept very simple in line with RISC design. A prototype chip of Pegasus was fabricated in 1.5μm CMOS technology and integrates 80000 transistors in a 9.7 mm square chip area. For quick fabrication and design scalability, the chip was designed by using high-level design tools except for its register file which is a dedicated dual-port RAM with a special copy function. Although the machine cycle time is slower, the prototype chip achieves comparable performance to other dedicated machines

Keywords

CMOS integrated circuits; PROLOG; VLSI; application specific integrated circuits; microprocessor chips; reduced instruction set computing; 1.5 micron; ASIC implementation; CMOS technology; Pegasus; RISC microprocessor; copy function; dedicated dual-port RAM; high-level design tools; high-performance PROLOG processor; Application specific integrated circuits; CMOS technology; Computer architecture; Dispatching; Fabrication; Laboratories; Microprocessors; Prototypes; Reduced instruction set computing; Registers;

fLanguage

English

Publisher

ieee

Conference_Titel

Euro ASIC '90

Conference_Location

Paris

Print_ISBN

0-8186-2066-8

Type

conf

DOI

10.1109/EASIC.1990.207928

Filename

207928