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
Pattern forming method using developer containing organic solvent and rinsing solution for use in the pattern forming method
Method of measuring the flux of a soil gas
Fast carrier allocation in multi-carrier systems
Dynamic load profiling in a power network
Reconfigurable barrel shifter and rotator
System and method for enhanced artificial bandwidth expansion
Testing apparatus and testing method for telephone apparatus
  Randomly Featured Patents
Refrigeration system with intermediate pressure vapor supply valve
Screen printing apparatus
Collagen/polysaccharide bilayer matrix
Composition for attaching a dental facing on a dental support structure, process and use thereof
Multi-grade object sorting system and method
Variety of Calibrachoa plant named `Wescadobl`
Compositions and methods for the modification of gene expression
Control station for a sectorized cell of a mobile radio network
Method and apparatus for queuing and triggering data flow streams for ATM networks
Belt connecting device