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Mapping of vector elements by vector state #1852

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Seo-sang opened this issue Nov 5, 2024 · 0 comments

Seo-sang commented Nov 5, 2024 •

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According to the V-extension v1.0, each element of vector register is mapped from LSB when SEW is widened as below.

VLEN=256b
SEW=8b 1F1E1D1C1B1A19181716151413121110 F E D C B A 9 8 7 6 5 4 3 2 1 0
SEW=32b 7 6 5 4 3 2 1 0

But on Spike, the data of each element doesn't move even though I changed SEW from 8 to 32. Does Spike support only fixed SEW of --isa option?

Thank you for any help in advance.

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