[Libre-soc-dev] setvl lost its reserved fields (was: setvl gaining CTR mode)
luke.leighton at gmail.com
Sun Jul 3 12:31:05 BST 2022
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Luke Kenneth Casson Leighton,
Technical Director RED Semiconductor Ltd.
On July 3, 2022 12:14:48 PM GMT+01:00, Jacob Lifshay <programmerjake at gmail.com> wrote:
>On Sun, Jul 3, 2022, 04:04 lkcl <luke.leighton at gmail.com> wrote:
>> even Jacob's idea to use one bit of SVi would have serious knock-on
>> implications in binutils, unit tests, ISACaller, and TestIssuer,
>> that "one bit" has to be excluded from being allowed to be used.
>> errors raised at the bare minimum in binutils.
>imho syntax errors (or any other binutils changes) aren't strictly
>this is like *(int *)1 in c isn't a syntax error though it is most
>imho, ever since SVi became a 7-bit field again, the MSB is required to
>a zero (otherwise MVL and VL would get set to 65 or greater). if we
>check that, wether or not my spec change is applied, the code is just
>my change is merely making that explicit in the spec.
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