Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Patching of a read only memory










Image Number 3 for United States Patent #6260157.

A processing device includes a ROM having program instructions and at leas one jump instruction stored therein, a patch program for patching the program instructions in the ROM, a RAM capable of storing the patch program and a patch vector table that indicates the location of the patch program. A processor executes the program instructions in the program ROM and uses the patch vector table to execute the patch program when one of the jump instructions is reached. The patch program may be stored in the RAM and the patch vector table may point to the address in the RAM at which the patch program is stored so that the processor jumps directly to the RAM to execute the patch program when it reaches the one of the jump instructions. Likewise, a patch engine may be used to locate a specified patch program, load the specified patch program into the RAM and execute the specified patch program when the processor reaches the one of the jump instructions.








 
 
  Recently Added Patents
Managing resource allocation and configuration of model building components of data analysis applications
Mechanism to manage access to user data area with bridged direct-attached storage devices
Transmitter and receiver modules for unidirectional communications and a method using the aforementioned
Web mounted load limiting seatbelt anchor
Method and apparatus for reducing soot particles in the exhaust gas of an internal combustion engine
Adaptive temperature controller
Traction control system and method
  Randomly Featured Patents
Spherical motor positioning
Device and method for protecting against oxidation of a conductive layer in said device
Insert and a heater element for electrical furnaces
Optical gating system using moire effect
Optical system of viewing-direction changing attachment for endoscopes
Accessory container system
Thin film transistor and fabricating method thereof
Method and system for off-resonance correction for non-cartesian parallel image reconstruction
Process for the production of an abrasion resistant decorative thermosetting laminate
Fault tolerant FDDI wiring hub