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How to use ARM's data-abort exception

Posted: 03 Aug 2006     Print Version  Bookmark and Share

Keywords:ARM7 processor  ARM processors 

The data-abort exception (with the help of an exception handler) may be God's gift to ARM programmers. A data-abort exception is a response by a memory system to an invalid data access. The data-abort exception handler is a program that can inform the programmer where in his or her code this exception has occurred (after the application has crashed). The exception handler ought to handle the consequences of the aborted instruction gracefully, rather than forcing the processor to hang in an infinite loop. If you understand the fundamental rules of the ARM architecture and data-abort exception handling, you'll spend less time begging for mercy.

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