[Libre-soc-dev] LD/ST Elwidth Overrides

lkcl luke.leighton at gmail.com
Sun Sep 5 14:18:40 BST 2021


https://libre-soc.org/openpower/sv/ldst/

i've updated the page to take into account the new
mode (Vector Indexed strided) and also removed
ffirst Vector Indexed entirely.  Immediate-mode ffirst remains.

it occurred to me that the Vector-Indexed Strided
mode would also need a signed/unsigned bit
to say if the elwidth-overridden RB was to be treated as +ve or -ve after truncation to 32/16/8 bit.

comments and review welcomed as always.

l.



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