Computer memory management method utilizing segmentation and pro

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364DIG1, 3642329, 3642466, 3642467, 364247, 3642473, 3642472, 364243, 3642434, 36424341, 3642557, 3642551, 3642548, 364264, 3642641, 364DIG1, 395650, 395700, G06F 1200

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051445514

ABSTRACT:
A method for managing memory in a computer system utilizing Intel Corporation's method of segmentation, memory management and protection techniques. The method is directed toward loading all computer registers and segment descriptor tables from a table of prestored values in memory while operating in real mode. At least two of the registers addresses are in excess of the real mode boundary of 1 Mbyte. The method described permits these registers to be loaded, without the generation of illegal flag values or general protection violations.

REFERENCES:
patent: 4525780 (1985-06-01), Bratt et al.
patent: 4580217 (1986-04-01), Celio
patent: 4761737 (1988-08-01), Duvall et al.
Oct. 20, 1988 Intel Corporation letter and attachments from Ms. S. Roach regarding emulating 286 Loadall instruction. Attachments include suggested code for emulation.
Microprocessor and peripheral handbook, vol. I, Intel Corp. 1988, pp. 4-121-4-127.
J. Crawford, P. Gelsinger, Programming the 80386, Sybex, 1987, pp. 54-59, 431-477, 488-489, 644-646.

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