Computer system and methods for loading and modifying a control program without stopping the computer system using reserve areas
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Dec 31, 2002
Grant Date -
N/A
app pub date -
Feb 23, 2000
filing date -
Feb 24, 1999
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A computer system and methods for loading a program and for modifying a program loaded in a memory without stopping the computer system are disclosed. The computer system includes a memory having a first area storing the executable codes, a second area storing the data codes, a third area which is a reserve area for the first area, and a fourth area which is a reserve area for the second area. When a modification of the program is required, execution of the program is stopped temporarily and modified executable codes are loaded in at least the first area. Then, the execution of the program is resumed. The modified executable codes may be loaded in the first area and third area when the size of the modified executable codes is greater than the size of the first area. The control program may be an operating system (OS), for example, of the computer system.
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