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softfloat: Resolve type mismatches between declaration and implementation
The original SoftFloat 2.0b library avoided the use of custom integer typesin its public headers. This requires the definitions of int{8,16,32,64} tomatch the assumptions in the declarations. This breaks on BeOS R5 and Haiku/x86,...
softfloat: Prepend QEMU-style header with derivation notice
The SoftFloat license requires "prominent notice that the workis derivative". Having added features like improved 16-bit supportfor arm already, add such a notice to the sources.
softfloat-native.[ch] are not under the SoftFloat license...
softfloat: move all default NaN definitions to softfloat.h.
These special values are needed to implement some helper functions,which return/use these values in some cases.
Signed-off-by: Christophe Lyon <christophe.lyon@st.com>Reviewed-by: Peter Maydell <peter.maydell@linaro.org>...
softfloat: add _set_sign(), _infinity and _half for 32 and 64 bits floats.
These constants and utility function are needed to implement somehelpers. Defining constants avoids the need to re-compute them atruntime.
Signed-off-by: Christophe Lyon <christophe.lyon@st.com>...
softfloat: Fix compilation failures with USE_SOFTFLOAT_STRUCT_TYPES
Make softfloat compile with USE_SOFTFLOAT_STRUCT_TYPES defined, byadding and using new macros const_float16(), const_float32() andconst_float64() so you can use array initializers in an array of...
softfloat: Add float16 type and float16 NaN handling functions
Add a float16 type to softfloat, rather than using bits16 directly.Also add the missing functions float16_is_quiet_nan(),float16_is_signaling_nan() and float16_maybe_silence_nan(),which are needed for the float16 conversion routines....
softfloat: Add float32_is_zero_or_denormal() function
Add a utility function to softfloat to test whether a float32is zero or denormal.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
softfloat: Implement floatx80_is_any_nan() and float128_is_any_nan()
Implement versions of float*_is_any_nan() for the floatx80 andfloat128 types.
Acked-by: Aurelien Jarno <aurelien@aurel32.net>Signed-off-by: Peter Maydell <peter.maydell@linaro.org>Signed-off-by: Riku Voipio <riku.voipio@iki.fi>
softfloat: Implement flushing input denormals to zero
Add support to softfloat for flushing input denormal float32 and float64to zero. softfloat's existing 'flush_to_zero' flag only flushes denormalsto zero on output. Some CPUs need input denormals to be flushed before...
softfloat: add float{x80,128}_maybe_silence_nan()
Add float{x80,128}_maybe_silence_nan() functions, they will be need bypropagateFloat{x80,128}NaN().
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
softfloat: Rename float*_is_nan() functions to float*_is_quiet_nan()
The softfloat functions float*_is_nan() were badly misnamed,because they return true only for quiet NaNs, not for all NaNs.Rename them to float*_is_quiet_nan() to more accurately reflect...
softfloat: Add float*_is_any_nan() functions
Add float*_is_any_nan() functions which return true if the argumentis a NaN of any kind (quiet or signalling).
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>Reviewed-by: Nathan Froyd <froydnj@codesourcery.com>
softfloat: Add float*_maybe_silence_nan() functions
Add functions float*_maybe_silence_nan() which ensure that avalue is not a signaling NaN by turning it into a quiet NaN.
softfloat: Add float/double to 16 bit integer conversion functions
The ARM architecture needs float/double to 16 bit integer conversions.(The 32 bit versions aren't sufficient because of the requirementto saturate at 16 bit MAXINT/MININT and to get the exception bits right.)...
softfloat: add float32_exp2()
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
target-alpha: Split up FPCR value into separate fields.
The fpcr_exc_status, fpcr_exc_mask, and fpcr_dyn_round fieldsare stored in <softfloat.h> format for convenience duringregular execution.
Revert the addition of float_exception_mask to float_status,...
target-alpha: Fixes for alpha-linux syscalls.
1. Add correct definitions of error numbers.2. Implement SYS_osf_sigprocmask3. Implement SYS_osf_get/setsysinfo for IEEE_FP_CONTROL.
This last requires exposing the FPCR value to do_syscall.Since this value is actually split up into the float_status,...
ARM FP16 support
Implement the ARM VFP half precision floating point extensions.
Signed-off-by: Paul Brook <paul@codesourcery.com>
rename NEEDS_LIBSUNMATH to CONFIG_NEEDS_LIBSUNMATH
Once there fix a place where it was misspelled
Signed-off-by: Juan Quintela <quintela@redhat.com>Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
rename WORDS_BIGENDIAN to HOST_WORDS_BIGENDIAN
rename HOST_BSD to CONFIG_BSD
change HOST_SOLARIS to CONFIG_SOLARIS{_VERSION}
Rename one more _BSD to HOST_BSD (spotted by Hasso Tepper)
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6782 c046a42c-6fe2-441c-8c8c-71466251a162
soft-float: add float32_log2() and float64_log2()
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6518 c046a42c-6fe2-441c-8c8c-71466251a162
softfloat: add a 1.0 constant for float32 and float64
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6514 c046a42c-6fe2-441c-8c8c-71466251a162
Implement flush-to-zero mode (denormal results are replaced with zero).
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6107 c046a42c-6fe2-441c-8c8c-71466251a162
Implement default-NaN mode.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6106 c046a42c-6fe2-441c-8c8c-71466251a162
fp: fix float32_is_infinity()
Thanks to Laurent Desnogues for the hint.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6089 c046a42c-6fe2-441c-8c8c-71466251a162
fp: add floatXX_is_infinity(), floatXX_is_neg(), floatXX_is_zero()
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6050 c046a42c-6fe2-441c-8c8c-71466251a162
Preliminary AIX support
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5732 c046a42c-6fe2-441c-8c8c-71466251a162
128-bit float support for user mode
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3740 c046a42c-6fe2-441c-8c8c-71466251a162
Add strict checking mode for softfp code.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3688 c046a42c-6fe2-441c-8c8c-71466251a162
ARMv7 support.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3572 c046a42c-6fe2-441c-8c8c-71466251a162
Add proper float*_is_nan prototypes.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2902 c046a42c-6fe2-441c-8c8c-71466251a162
Solaris 9/x86 support, by Ben Taylor.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2577 c046a42c-6fe2-441c-8c8c-71466251a162
Add missing softfloat helpers.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2518 c046a42c-6fe2-441c-8c8c-71466251a162
avoid using char when it is not necessary
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2204 c046a42c-6fe2-441c-8c8c-71466251a162
ColdFire target.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2196 c046a42c-6fe2-441c-8c8c-71466251a162
Solaris port (Ben Taylor)
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1855 c046a42c-6fe2-441c-8c8c-71466251a162
added abs, chs and compare functions
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1338 c046a42c-6fe2-441c-8c8c-71466251a162
soft float support
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1332 c046a42c-6fe2-441c-8c8c-71466251a162