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Re: [PATCH for-9.2 v3 0/6] target/sparc: emulate floating point queue wh


From: Richard Henderson
Subject: Re: [PATCH for-9.2 v3 0/6] target/sparc: emulate floating point queue when raising fp traps
Date: Sat, 17 Aug 2024 09:59:58 +1000
User-agent: Mozilla Thunderbird

On 8/17/24 08:58, Carl Hauser wrote:
Yes, but ...

isn't the state of dc->fsr_qne at translation time irrelevant?

No, because patch 4 made it part of the hashed TB state.
It's checked and verified, generating a new TB if state does not match.

And changing it at translation time (line 4593) is dangerous (because it pertains to runtime, not translation time); i.e. why is 0 stored at both translation time (4593) and at runtime (4591)?

That keeps the translation time state in sync with the runtime state until the 
end of the TB.


r~



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