Hi all,
I'm recently compiled my rtems for a Xilinx board bsp included in RTEMS. In a
future I will add TCP/UDP connections to my application so I just want to
assure I did the correct installation. At RTEMS compilation I included the
-enable-networking option. I have worked with RTEMS using th
Hello Jens,
in uni-processor configurations a lazy floating-point context switch is
done on SPARC. You can search for SPARC_USE_LAZY_FP_SWITCH in the sources.
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Sebastian Huber, embedded brains GmbH
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On Tue, Dec 3, 2019 at 8:48 AM Schweikhardt, Jens (TSPCE3-TL4) <
jens.schweikha...@tesat.de> wrote:
> Hello, world\n
>
>
>
> I have a question about the use of trap 4 by RTEMS on Sparc32 (leon3).
>
> Since our app needs FP, we set the PSR[EF] bit during the boot process
> before RTEMS is invoked.
Does your application work if you don't use your custom trap handler? In the
old days, RTEMS used lazy FPU context switching so FPU disabled traps could
happen and were handled by the kernel. Also note that if you use FPU
instructions in the Init task, you need a special FPU attribute for it ...
Hello, world\n
I have a question about the use of trap 4 by RTEMS on Sparc32 (leon3).
Since our app needs FP, we set the PSR[EF] bit during the boot process before
RTEMS is invoked.
Since we don't expect the fp_disabled trap (4) to occur, we install a fatal
handler for it with
rtems_interrupt_ca
