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2016-02-19fpu: Use plain 'int' rather than 'int_fast16_t' for exponentsPeter Maydell
Use the plain 'int' type rather than 'int_fast16_t' for handling exponents. Exponents don't need to be exactly 16 bits, so using int16_t for them would confuse more than it clarified. This should be a safe change because int_fast16_t semantics permit use of 'int' (and on 32-bit glibc that is what you get). Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Aurelien Jarno <aurelien@aurel32.net> Message-id: 1453807806-32698-4-git-send-email-peter.maydell@linaro.org
2016-02-19fpu: Use plain 'int' rather than 'int_fast16_t' for shift countsPeter Maydell
Use the plain 'int' type rather than 'int_fast16_t' for shift counts in the various shift related functions, since we don't actually care about the size of the integer at all here, and using int16_t would be confusing. This should be a safe change because int_fast16_t semantics permit use of 'int' (and on 32-bit glibc that is what you get). Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Aurelien Jarno <aurelien@aurel32.net> Message-id: 1453807806-32698-3-git-send-email-peter.maydell@linaro.org
2016-01-22fpu: Replace int8 typedef with int8_tPeter Maydell
Replace the int8 softfloat-specific typedef with int8_t. This change was made with find include hw fpu target-* -name '*.[ch]' | xargs sed -i -e 's/\bint8\b/int8_t/g' together with manual removal of the typedef definition, and manual undoing of various mis-hits. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Richard Henderson <rth@twiddle.net> Reviewed-by: Aurelien Jarno <aurelien@aurel32.net> Acked-by: Leon Alrae <leon.alrae@imgtec.com> Acked-by: James Hogan <james.hogan@imgtec.com> Message-id: 1452603315-27030-6-git-send-email-peter.maydell@linaro.org
2015-01-29softfloat: Clarify license statusPeter Maydell
The code in the softfloat source files is under a mixture of licenses: the original code and many changes from QEMU contributors are under the base SoftFloat-2a license; changes from Stefan Weil and RedHat employees are GPLv2-or-later; changes from Fabrice Bellard are under the BSD license. Clarify this in the comments at the top of each affected source file, including a statement about the assumed licensing for future contributions, so we don't need to remember to ask patch submitters explicitly to pick a license. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Acked-by: Andreas Färber <afaerber@suse.de> Acked-by: Aurelien Jarno <aurelien@aurel32.net> Acked-by: Avi Kivity <avi.kivity@gmail.com> Acked-by: Ben Taylor <bentaylor.solx86@gmail.com> Acked-by: Blue Swirl <blauwirbel@gmail.com> Acked-by: Christophe Lyon <christophe.lyon@st.com> Acked-by: Fabrice Bellard <fabrice@bellard.org> Acked-by: Guan Xuetao <gxt@mprc.pku.edu.cn> Acked-by: Juan Quintela <quintela@redhat.com> Acked-by: Max Filippov <jcmvbkbc@gmail.com> Acked-by: Paul Brook <paul@codesourcery.com> Acked-by: Paolo Bonzini <pbonzini@redhat.com> Acked-by: Peter Maydell <peter.maydell@linaro.org> Acked-by: Richard Henderson <rth@twiddle.net> Acked-by: Richard Sandiford <rdsandiford@googlemail.com> Acked-by: Stefan Weil <sw@weilnetz.de> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Message-id: 1421073508-23909-5-git-send-email-peter.maydell@linaro.org
2015-01-29softfloat: Apply patch corresponding to rebasing to softfloat-2aPeter Maydell
This commit applies the changes to master which correspond to replacing commit 158142c2c2df with a set of changes made by: * taking the SoftFloat-2a release * mechanically transforming the block comment style * reapplying Fabrice's original changes from 158142c2c2df This commit was created by: diff -u 158142c2c2df import-sf-2a patch -p1 --fuzz 10 <../relicense-patch.txt (where import-sf-2a is the branch resulting from the changes above). Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Message-id: 1421073508-23909-2-git-send-email-peter.maydell@linaro.org
2014-06-23fpu: softfloat: drop INLINE macroLuiz Capitulino
This commit expands all uses of the INLINE macro and drop it. The reason for this is to avoid clashes with external libraries with bad name conventions and also because renaming keywords is not a good practice. PS: I'm fine with this change to be licensed under softfloat-2a or softfloat-2b. Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2013-06-10softfloat: Fix shift128Right for shift counts 64..127Peter Maydell
shift128Right would give the wrong result for a shift count between 64 and 127. This was never noticed because all of our uses of this function are guaranteed not to use shift counts in this range. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Message-id: 1370186269-24353-1-git-send-email-peter.maydell@linaro.org Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-04-28softfloat: Replace int16 type with int_fast16_tAndreas Färber
Based on the following Coccinelle patch: @@ typedef int16, int_fast16_t; @@ -int16 +int_fast16_t Avoids a workaround for AIX. Add typedef for pre-10 Solaris. Signed-off-by: Andreas Färber <afaerber@suse.de> Cc: malc <av1474@comtv.ru> Cc: Ben Taylor <bentaylor.solx86@gmail.com> Tested-by: Bernhard Walle <bernhard@bwalle.de> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-04-17softfloat: use GCC builtins to count the leading zerosAurelien Jarno
Softfloat has its own implementation to count the leading zeros. However a lot of architectures have either a dedicated instruction or an optimized to do that. When using GCC >= 3.4, this patch uses GCC builtins instead of the handcoded implementation. Note that I amware that QEMU_GNUC_PREREQ is defined in osdep.h and that clz32() and clz64() are defined in host-utils.h, but I think it is better to keep the softfloat implementation self contained. Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2011-03-21softfloat: Drop [s]bits{8, 16, 32, 64} types in favor of [u]int{8, 16, 32, 64}_tAndreas Färber
They are defined with the same semantics as the POSIX types, so prefer those for consistency. Suggested by Peter Maydell. Cc: Peter Maydell <peter.maydell@linaro.org> Cc: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Andreas Färber <andreas.faerber@web.de> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2011-03-21softfloat: Prepend QEMU-style header with derivation noticeAndreas Färber
The SoftFloat license requires "prominent notice that the work is derivative". Having added features like improved 16-bit support for arm already, add such a notice to the sources. softfloat-native.[ch] are not under the SoftFloat license and thus are not changed. Cc: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Andreas Färber <andreas.faerber@web.de> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2009-04-13Fix OpenSolaris gcc4 warnings: iovec type mismatches, missing 'static'blueswir1
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@7103 c046a42c-6fe2-441c-8c8c-71466251a162
2008-12-13Remove unnecessary trailing newlinesblueswir1
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6000 c046a42c-6fe2-441c-8c8c-71466251a162
2005-03-13soft float supportbellard
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1332 c046a42c-6fe2-441c-8c8c-71466251a162
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