9.1.1. The vector table

Processor exception handling is controlled by a vector table. The vector table is a reserved area of 32 bytes, usually at the bottom of the memory map. It has one word of space allocated to each exception type, and one word that is currently reserved.

This is not enough space to contain the full code for a handler, so the vector entry for each exception type typically contains a branch instruction or load pc instruction to continue execution with the appropriate handler.

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