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
Guitar strap attachment means
Automated security analysis for federated relationship
Bi-directional, compact, multi-path and free space channel replicator
Method for forming ventilation holes in an electrode plate
Image forming apparatus, control method and computer-readable medium for stopping a print job during printing by a printer
Systems and methods for identifying similar documents
System and method for the analysis of biodiesel
  Randomly Featured Patents
Piston ring
5-membered heteroaryl-oxazolidinones
Conduit bending apparatus
Multiple gene transcription activity assay system
Method for evolving efficient communications
Spect apparatus utilizing fan-parallel data conversion
Amidinato catalyst systems for the polymerization of olefins
Optical pickup apparatus
Blade assembly with splitter shroud
Multilayer structure with zirconium-oxide tunnel barriers and applications of same