Boots – shoes – and leggings
Patent
1989-04-03
1991-10-29
Shaw, Gareth D.
Boots, shoes, and leggings
3642318, 36424341, 3642526, 3642552, 3642628, 36426281, 3642631, G06F 938, G06F 932, G06F 9355
Patent
active
050620363
ABSTRACT:
Instruction prefetching apparatus particularly adapted to executing an EXECUTE instruction specifiying a single subject instruction. The apparatus includes a first and second separately-controllable instruction syllable register and control apparatus. Under control of the control apparatus, the first instruction syllable register receives only the first syllable of the prefetched instruction; the second instruction syllable register receives all other syllables. The instruction syllable registers may be loaded either directly from memory or from a data register internal to the CPU. In the first case, the address of the instruction syllable to be prefetched is contained in a special instruction address register which is incremented each time an instruction syllable register is loaded. In the second case, the loading does not affect the value of the instruction address register. Also disclosed is a method of prefetching in which the first instruction syllable is prefetched into the first instruction syllable register and each of the other syllables is prefetched in turn to the second instruction syllable register and a method of executing the EXECUTE instruction in which the syllables of the EXECUTE instruction are prefetched directly from memory using the instruction address and the syllables of the subject instruction are fetched into the data register and from there into the instruction syllable registers.
REFERENCES:
patent: 3401376 (1968-09-01), Barnes et al.
patent: 3408630 (1968-10-01), Packard et al.
patent: 3930236 (1975-12-01), Ferguson et al.
patent: 4001788 (1977-01-01), Patterson et al.
patent: 4005391 (1977-01-01), MacPherson
patent: 4110822 (1978-08-01), Porter et al.
patent: 4330823 (1982-05-01), Retter
patent: 4384324 (1983-05-01), Kim et al.
patent: 4409654 (1983-10-01), Wada et al.
patent: 4430708 (1984-02-01), Isaman
Barrow Arthur
Cheung Kin L.
Einarson Jeffrey W.
Khan Shams A.
Chaki Kakali
Nelson Gordon E.
Shanahan Michael H.
Shaw Gareth D.
Wang Laboratories, Inc.
LandOfFree
Instruction prefetcher does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Instruction prefetcher, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Instruction prefetcher will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1403572