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feature request - Zb* sub-extensions #640
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#633 talks about the perhaps the data-sheet could not only list the extensions currently supported, but those on (or NOT on) the roadmap.... |
Oh sorry, seems like I have mixed up something 😅
So we should replace neorv32/rtl/core/neorv32_cpu_cp_bitmanip.vhd Lines 74 to 79 in a5bf1c8
But theses switches are not propagated to the top nor to the control unit to check for legal/illegal instructions. |
The |
the
Zbc
sub-extension (carry-less multiplication) is quite different from the other sub-extensions, which really do "bit manipulation" in the more traditional sense...not critical, but it might be helpful to enable the
Zb*
sub-extensions individual -- as this also has impact on the overall size of the synthesized core....a placeholder for the future....
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