[libre-riscv-dev] [Bug 206] Implement branch prediction

bugzilla-daemon at libre-riscv.org bugzilla-daemon at libre-riscv.org
Wed Mar 4 00:26:10 GMT 2020


--- Comment #10 from Luke Kenneth Casson Leighton <lkcl at lkcl.net> ---

i love this guy :) he talks so fast, and makes it clear that you use the first
few bits of the address as the index into the Branch Lookup SRAM.

the entries are:
* the full address (so that you know that you are matching the correct address,
just like a Page Table Entry)
* the last branch address
* the prediction yes/no

so it is actually very similar to Page Tables, which is quite interesting.

will keep looking for more stuff

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