qemu-patch-raspberry4/fpu
Peter Maydell 37d18660bb softfloat: Implement flushing input denormals to zero
Add support to softfloat for flushing input denormal float32 and float64
to zero. softfloat's existing 'flush_to_zero' flag only flushes denormals
to zero on output. Some CPUs need input denormals to be flushed before
processing as well. Implement this, using a new status flag to enable it
and a new exception status bit to indicate when it has happened. Existing
CPUs should be unaffected as there is no behaviour change unless the
mode is enabled.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Acked-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2011-01-06 22:16:59 +01:00
..
softfloat-macros.h Fix OpenSolaris gcc4 warnings: iovec type mismatches, missing 'static' 2009-04-13 16:31:01 +00:00
softfloat-native.c softfloat: Rename float*_is_nan() functions to float*_is_quiet_nan() 2011-01-02 11:15:25 +01:00
softfloat-native.h softfloat: Rename float*_is_nan() functions to float*_is_quiet_nan() 2011-01-02 11:15:25 +01:00
softfloat-specialize.h target-ppc: Implement correct NaN propagation rules 2011-01-06 16:29:42 +01:00
softfloat.c softfloat: Implement flushing input denormals to zero 2011-01-06 22:16:59 +01:00
softfloat.h softfloat: Implement flushing input denormals to zero 2011-01-06 22:16:59 +01:00