[Libre-soc-dev] PPC 615

Luke Kenneth Casson Leighton lkcl at lkcl.net
Sun Apr 18 00:47:23 BST 2021


On Sat, Apr 17, 2021 at 11:53 PM Umberto Cerrato
<umbertocerrato at outlook.it> wrote:
>
> "A microprocessor developed by IBM that that included logic for decoding x86 instructions into PowerPC-native instructions.”
> https://everything2.com/title/PowerPC+615

interesting.  a different approach from Loongson.  the advantage of
OpenPOWER is that it has condition registers: the Loongson took *ten*
instructions (!) to do one x86 branch.

l.



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