where can i find the core code of intel 8259A interrupt controller?

[Tony]

Hi everyone,

does anyone konw where can i find some core code of intel 8259A
interrupt controller. it is more better if the core code is written in
VHDL for I am doing something on it. I just want to write some chips
which the function is more like the 8259A.

Thanks in advance,

Tony

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