Patching apparatus and method for upgrading modem software code

Details Patching apparatus and method for upgrading modem software code Patching apparatus and method for upgrading modem software code

1997-05-29

2000-10-24

Hafiz, Tariq R.

395704, G06F 944

Patent

active

061356514

ABSTRACT:
A software patch method and apparatus using a content addressable memory (CAM) to produce a code change enable signal when a program memory address matches a patch memory address, to cause program execution of modem operation to be diverted to the patch code when an address comparison hit is achieved. The patching apparatus includes a program memory for applying program instructions onto a data bus for execution, unless an address comparison of a program address and a patch address causes application of a substitute address onto the data bus.

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