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fflags.NV is not update after fdiv.s instruction #692

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zhangkanqi opened this issue May 29, 2024 · 0 comments
Open

fflags.NV is not update after fdiv.s instruction #692

zhangkanqi opened this issue May 29, 2024 · 0 comments

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@zhangkanqi
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Type of issue: bug report

Development Phase: proposal

Description:
Hi!
There is an instruction fdiv.s ft3, fa6, ft2, where fa6=0x97f2f43fd08f1d24 and ft2=0xffffffff7fb4f314.
After executing this fdiv.s instruction, fflags.NV is set to 1 in Spike. However, fflags.NV in boom still remains 0.

Environment:
chipyard: b7644b2455cc4bae190e811a5d8085f3aad85b87
boom(in chipyard): 1a153d4
Spike: e46586e2b5744c631e4fefede8df9f0108f06b8d
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@zhangkanqi