Method for a microcomputer to access an instruction code from me

Details Method for a microcomputer to access an instruction code from me Method for a microcomputer to access an instruction code from me

1994-12-16

1999-07-27

Donaghue, Larry D.

Electrical computers and digital processing systems: processing

Instruction fetching

712 38, 711138, G06F 938

Patent

active

059283548

ABSTRACT:
A memory access method in a microcomputer for a CPU to fetch an instruction code from a memory when an instruction queue buffer does not contain the instruction code, comprising the steps of fetching the instruction code from a high-speed memory directly to the CPU, if the instruction code is in the high speed memory, or fetching the instruction code from a low-speed memory to the instruction queue buffer, if the instruction code is in the low-speed memory, then fetching the instruction code from the instruction queue buffer to the CPU.

REFERENCES:
patent: 3964027 (1976-06-01), Dalmasso
patent: 4635194 (1987-01-01), Burger et al.
patent: 4796175 (1989-01-01), Matsuo et al.
patent: 4942518 (1990-07-01), Weatherford et al.
patent: 5201041 (1993-04-01), Bohner et al.
IBM Technical Disclosure Bulletin, "Multiple Directories for a Second Level of Storage," vol. 26, No. 8, Jan. 1984.
"On-Chip Cache Memory Gives Ps a Big-System Look," Electronic Design, Oct. 13, 1983.

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