Virtual expansion of program RAM size

Details Virtual expansion of program RAM size Virtual expansion of program RAM size

2006-02-14

2006-02-14

Sparks, Donald (Department: 2187)

Electrical computers and digital processing systems: memory

Storage accessing and control

Specific memory composition

C711S002000, C711S004000, C711S006000, C711S119000, C711S133000, C711S159000, C711S165000, C711S203000

Reexamination Certificate

active

07000067

ABSTRACT:
A method and apparatus for virtually expanding the rapid-access memory space of a device employing time-critical software modules and having various modes of operation. Each of the modes of operation of the device is identified. For each mode of operation, the time-critical software modules used during the mode are identified. The software modules used during all modes of operation are permanently stored in rapid-access memory. However, a software module that is used only during a particular mode of operation is loaded into the rapid-access memory unit only upon entry into the mode of operation in which it is used. The software module is loaded into a region of memory occupied by another software module not utilized during the particular mode of operation being entered.

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