Re: [Qemu-devel] Switch to OpenBIOS for Sparc32/64?

[Blue Swirl]

> 1) Include the bit 'psref' in the static translation state (in tb->flags). 
> Then psref can be tested at translation time and there is no run time cost. 
> This approach is used on the x86 target. The downside is that two TBs may 
> be generated for a given block of code depending on the psref value. 
> Ideally if no FPU operations are used in the TB, psref should be ignored 
> (not done yet on x86).

Is the attached patch what you had in mind?

Record FPU enabled/disabled condition to TB flags, generate code statically
based on translation time state.

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