[libre-riscv-dev] ppc-dev linux patch support for microwatt!
Luke Kenneth Casson Leighton
lkcl at lkcl.net
Tue May 12 02:25:43 BST 2020
On Tuesday, May 12, 2020, Yehowshua <yimmanuel3 at gatech.edu> wrote:
> > On May 11, 2020, at 8:53 PM, Luke Kenneth Casson Leighton <lkcl at lkcl.net>
> > that is prohibited by design.
> Are you saying that the POWER ISA itself dis-allows writes to instruction
we'll have to check the spec closely, or ask on one if the lists, or just
trust paul's expertise. he's been working with powerpc since 1996.
Does such a behavior get trapped or something?
hard exception, yes.
> I know that Linux on RISCV for example will set page r/w/ex bits that are
> part of the RISCV ISA. Then, an attempt to store into instruction memory
> becomes prohibited.
crowd-funded eco-conscious hardware: https://www.crowdsupply.com/eoma68
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