Automatic data backup apparatus for microcomputer

Boots – shoes – and leggings

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39518211, 364187, G06F 1122, G06F 1128

Patent

active

058782478

ABSTRACT:
An improved automatic data backup apparatus for a microcomputer capable of automatically backing up a user's program at a central processing unit(CPU), which includes a central processing unit(CPU) for performing a user program and a monitor program outputted from a first emulator input/output circuit and a data/address bus; a second emulator input/output circuit for outputting a register signal applied thereto and for inputting/outputting a data between a register data bus connected to an emulator and a backup register bus; and a data backup storing circuit for automatically backing up a data stored in a register of the CPU corresponding to a user program performed in the CPU in accordance with a monitor program request signal outputted from the second emulator input/output circuit, a register signal, a register recording signal, and a register judgement signal and for applying a data stored in a register in the CPU corresponding to a user program which is changed by a backed-up monitor program.

REFERENCES:
patent: 4654819 (1987-03-01), Stiffler et al.
Ota et al. (translation of Japanese Patent 4-125740, published on Apr. 27, 1992, translated by Schreiber Translation, Inc., Aug. 1998).

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