[Qemu-devel] Re: [PATCH][SPARC] FPU deferred trap-queue

[Aurelien Jarno]

On Tue, Apr 03, 2007 at 02:12:14AM +0200, Aurelien Jarno wrote:
> Hi,
> 
> The current emulated SPARC FPU does not support deferred trap-queue. In
> such cases the STDFQ instruction should generate an fp_exception trap
> with the FTT field to sequence_error instead of the current
> illegal_instruction trap.
> 
> The attached patch fixes that. It also ensures that the qne bit of the
> FSR register is always zero, ie that there is no deferred trap-queue
> pending.
> 

I have just remarked that my patch breaks the user mode. Please find
attached a new one to fix this problem.

Bye,
Aurelien

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sparc-qemu-stdfq.diff
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