Prolog addressing

Details Prolog addressing Prolog addressing

1992-08-27

1995-01-31

Kriess, Kevin A.

Boots, shoes, and leggings

3642553, 3642554, 364DIG1, G06F 926, G06F 942

Patent

active

053865200

ABSTRACT:
An improved technique for processing Prolog objects is described. The first bit of the Prolog object word is used as a flag to indicate whether the object word is a type pointer or type descriptor. If the one-bit flag indicates that the object word is a type pointer, then the address is available for immediate processing without the unnecessary processing associated with the prior art.

REFERENCES:
patent: 3754218 (1973-08-01), Hatta et al.
patent: 4241397 (1980-12-01), Strcker et al.
patent: 4546432 (1985-10-01), Umemura et al.
patent: 4835677 (1989-05-01), Sato et al.
patent: 5274820 (1993-12-01), Gillet
patent: 5274821 (1993-12-01), Rouquie
Warren, "An Abstract Prolog Instruction Set" Technical Note 309, SRI Project 4776, Oct. 1983.
David H. D. Warren, "Implementing Prolog", DAI Research Report No. 39, vol. I, May 1977.
Gabriel et al., "A Tutorial on the Warren Abstract Machine For Computational Logic", Argonne National Library, Jun. 1985.

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