#2270: SPARC: Optimized floating-point context handling
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Reporter: sebastian.huber | Owner: sebastian.huber
Type: enhancement | Status: accepted
Priority: normal | Milestone: 4.11.1
Component: cpukit | Version: 4.11
Severity: normal | Resolution:
Keywords: SPARC |
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Comment (by sebastian.huber):
Are the FPU instructions really that slow? I would disable the PSR.EF in
the _ISR_Handler at
dont_fix_pil:
or %g5, SPARC_PSR_PIL_MASK, %g5
pil_fixed:
wr %g5, SPARC_PSR_ET_MASK, %psr ! **** ENABLE TRAPS ****
So why not enable traps and disable EF in one step?
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Ticket URL: <http://devel.rtems.org/ticket/2270#comment:13>
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