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ARM Architecture Reference Manual писал(а):Exception
Handles an event. For example, an exception could handle an external interrupt or an Undefined instruction.
ARM Architecture Reference Manual писал(а):A2.6 Exceptions
Exceptions are generated by internal and external sources to cause the processor to handle an event, such as
an externally generated interrupt or an attempt to execute an Undefined instruction. The processor state just
before handling the exception is normally preserved so that the original program can be resumed when the
exception routine has completed. More than one exception can arise at the same time.
The ARM architecture supports seven types of exception. Table A2-4 lists the types of exception and the
processor mode that is used to process each type. When an exception occurs, execution is forced from a fixed
memory address corresponding to the type of exception. These fixed addresses are called the exception
vectors.
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