Method and system for loading microprograms in partially defecti

Details Method and system for loading microprograms in partially defecti Method and system for loading microprograms in partially defecti

1997-12-11

2000-08-22

Beausoliel, Jr., Robert W.

Error detection/correction and fault detection/recovery

Data processing system error or fault handling

Reliability and availability

714 35, 714768, G06F 1202

Patent

active

061087971

ABSTRACT:
When loading executable machine code into memories, the defective memory locations can be bypassed by properly inserting jump instructions or dummy memory allocation instructions in the program code. Prior to loading the executable code into the memories, defective memory locations are checked and recorded first. The source program code are analyzed to see which instruction step will fall into defective memory locations. Dummy memory space allocation instructions or additional jump instructions, are inserted in the original micro code, such that defective memory locations can be bypassed when the modified program code is loaded into the working memory space. The present invention is useful for loading executable programs in programmable and verifiable memories, such as Flash/EEPROM, EPROM, SRAM and DRAM, etc.

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