Electrical computers and digital processing systems: memory – Storage accessing and control – Specific memory composition
Reexamination Certificate
2006-06-13
2006-06-13
Moazzami, Nasser (Department: 2187)
Electrical computers and digital processing systems: memory
Storage accessing and control
Specific memory composition
C714S710000
Reexamination Certificate
active
07062598
ABSTRACT:
A processing system comprising: i) a read-only memory (ROM) that stores original ROM code; ii) a custom array that stores replacement ROM code; and iii) control logic that receives an incoming ROM address and a read request signal generated by a source device. The control logic, in response to receipt of the incoming ROM address and the read request signal, compares the incoming ROM address to a patched address associated with the ROM. If a match occurs, the control logic outputs to the custom array a translated address associated with the patched address. The custom array then outputs a first line of replacement ROM code associated with the translated address.
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Lapidus Peter D.
Larsen David H.
Advanced Micro Devices , Inc.
Moazzami Nasser
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