System for relocating dynamic memory address space having receiv

Details System for relocating dynamic memory address space having receiv System for relocating dynamic memory address space having receiv

1990-02-05

1992-04-28

Lee, Thomas C.

Boots, shoes, and leggings

364DIG2, 3649702, 364964, 364974, G06F 1300, G06F 300

Patent

active

051095211

ABSTRACT:
A personal computer transfers the contents of the computer's slow 16 bit read only memory (ROM) into the computer's fast 32 bit random access memory (RAM), remaps the RAM space to include the ROM space and disables the ROM. Portions of the RAM are tested before the contents are transferred. After the transfer the computer operates out of the RAM. Additionally, the RAM address space containing the ROM contents can selectively be made write protected so that the data cannot be changed.

REFERENCES:
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patent: 4310901 (1982-01-01), Harding et al.
patent: 4456966 (1984-06-01), Bringol et al.
patent: 4462086 (1984-07-01), Kurakake
patent: 4481627 (1984-11-01), Beauchesne et al.
patent: 4584663 (1986-04-01), Tanikawa
patent: 4590556 (1986-05-01), Berger et al.
patent: 4769767 (1988-09-01), Hilbrink

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