[Libre-soc-dev] we need two XLENs

Jacob Lifshay programmerjake at gmail.com
Fri Sep 9 07:40:13 BST 2022

On Thu, Sep 8, 2022 at 11:35 PM lkcl <luke.leighton at gmail.com> wrote:
> all behaviour of SelectableInt is bit-specific due to MSB0.
> 6bit + 5bit is a failure.
> therefore SLEN-bit + DLEN-bit likewise.

hmm, how about having XLEN only defined for ops where both elwids are
guaranteed equal? though on second thought that isn't a good idea
because future svp64 revisions might want to use more space to have
separate elwids for ops that currently only have space for 1...

I guess in summary having both SLEN and DLEN seems like the only viable path...


More information about the Libre-soc-dev mailing list