Vincent Chen ed32949e0a nds32: Avoid IEX status being incorrectly modified ... In order for kernel to capture each denormalized output, the UDF trapping enable bit is always raised in $fpcsr. Because underflow case will issue not an underflow exception but also an inexact exception, it causes that the IEX, IEX cumulative exception, flag in $fpcsr to be raised in each denormalized output handling. To make the emulation transparent to the user, the emulator needs to clear the IEX flag in $fpcsr if the result is a denormalized number. However, if the IEX flag has been raised before this floating point emulation, this cleanup may be incorrect. To avoid the IEX flags in $fpcsr be raised in each denormalized output handling, the IEX trap shall be always enabled. Signed-off-by: Vincent Chen <vincentc@andestech.com> Acked-by: Greentime Hu <greentime@andestech.com> Signed-off-by: Greentime Hu <greentime@andestech.com>		2019-05-31 15:23:26 +08:00
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asm	nds32: Avoid IEX status being incorrectly modified	2019-05-31 15:23:26 +08:00
uapi/asm	nds32: Avoid IEX status being incorrectly modified	2019-05-31 15:23:26 +08:00