Method and circuitry for causing sixteen bit microprocessor to e

Details Method and circuitry for causing sixteen bit microprocessor to e Method and circuitry for causing sixteen bit microprocessor to e

1988-04-06

1989-10-24

Williams, Jr., Archie E.

Boots, shoes, and leggings

3642328, 3642611, 3642323, 3642548, 3642549, G06F 922, G06F 936, G06F 944

Patent

active

048766399

ABSTRACT:
A sixteen bit microprocessor includes an emulation bit that is loaded into an instruction register with 8 bit op codes. If the emulation bit is a "1", the 16 bit microprocessor operates internally as a 6502 type eight bit microprocessor, thereby emulating a 6502 microprocessor. If the emulation bit is set to a "0", the 16 bit microprocessor executes an instruction set of which the 6502 instruction set is a subset to effectuate internal 16 bit operation.

REFERENCES:
patent: 4084235 (1978-11-01), Hirtle et al.
patent: 4236204 (1980-11-01), Groves
patent: 4403284 (1983-09-01), Sacarisen et al.
patent: 4415969 (1983-11-01), Bayliss et al.
patent: 4618925 (1986-10-01), Bratt et al.
patent: 4654789 (1987-03-01), Nusinov et al.
patent: 4677548 (1987-06-01), Bradley

Affiliated with

Also associated with

Rating

Method and circuitry for causing sixteen bit microprocessor to e does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and circuitry for causing sixteen bit microprocessor to e, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and circuitry for causing sixteen bit microprocessor to e will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1592558