A diagram showing how the 256 handler addresses are arranged into a vector table.
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Ken Shirriff (kenshirriff@oldbytes.space)'s status on Wednesday, 22-Feb-2023 16:11:24 JST 
Ken Shirriff
The 8086 chip supports 256 different interrupts. Each one has an entry in a "vector table" pointing to the code that handles that interrupt. The microcode gets the right address from the vector table and does a subroutine call to that handler routine.
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