发明名称 |
PATCHING APPARATUS AND METHOD FOR UPGRADING MODEM SOFTWARE CODE |
摘要 |
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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申请公布号 |
WO9854639(A1) |
申请公布日期 |
1998.12.03 |
申请号 |
WO1998US10975 |
申请日期 |
1998.05.28 |
申请人 |
CIRRUS LOGIC, INC. |
发明人 |
GUPTA, SANJAY;SMITH, WESLEY;LEINFELDER, KARL;JAFFER, NAVIN;HEDAYAT, SHAHIN;MANDAVA, BABU |
分类号 |
G06F9/26;G06F9/445;(IPC1-7):G06F9/26 |
主分类号 |
G06F9/26 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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