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path: root/target-s390x/int_helper.c
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2015-07-07target-s390x: fix CONVERT TO BINARY (CVD, CVDY)Aurelien Jarno
current_number being shift left by more than 32 bits, we can't use a simple int. Similarly use an int64_t type for the input binary value, to not get the -2^31 case wrong. Finally don't initialize shift to 4, it's already done in the for loop. Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Alexander Graf <agraf@suse.de>
2015-06-05target-s390x: remove unused helpersAurelien Jarno
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Alexander Graf <agraf@suse.de>
2015-06-05target-s390x: optimize (negative-) abs computationAurelien Jarno
Now that movcond exists, it's easy to write (negative-) absolute value using TCG code instead of an helper. Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Alexander Graf <agraf@suse.de>
2014-05-28tcg: Invert the inclusion of helper.hRichard Henderson
Rather than include helper.h with N values of GEN_HELPER, include a secondary file that sets up the macros to include helper.h. This minimizes the files that must be rebuilt when changing the macros for file N. Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-03-13exec: Change cpu_abort() argument to CPUStateAndreas Färber
Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-04-26s390x: use CONFIG_INT128 to detect __uint128_tGabriel Kerneis
Target s390x uses ad-hoc macro magic to guess if the compiler supports the GCC extension __uint128_t. This patch uses the the dedicated macro CONFIG_INT128 defined by configure instead. This fixes compilation with the CIL source code analyzer, which uses GCC as a preprocessor but does not support __uint128_t. Signed-off-by: Gabriel Kerneis <gabriel@kerneis.info> Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-02-23target-s390x: Use mulu2 for mlgr insnRichard Henderson
Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2013-01-05target-s390: Implement POPCNTRichard Henderson
Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-01-05target-s390: Convert FLOGRRichard Henderson
Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-01-05target-s390: Send signals for divideRichard Henderson
Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-01-05target-s390: Convert DIVIDERichard Henderson
Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-01-05target-s390: Convert ADD LOGICAL CARRY and SUBTRACT LOGICAL BORROWRichard Henderson
I'm resonably certain that the carry/borrow-out condition for both helpers was incorrect, failing to take into account the carry-in. Adding the new CC_OP codes also allows removing the awkward interface we used for the slb helpers. Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-01-05target-s390: Convert 64-bit MULTIPLY LOGICALRichard Henderson
Use a new "retxl" member of CPUS290XState to return the "eXtra Low" part of a 128-bit value. That said, this will get used when two independent values need returning (e.g. quotient+remainder) as well. At the same time, shuffle the elements of CPUS390XState to get this new space from existing padding in the structure. Signed-off-by: Richard Henderson <rth@twiddle.net>
2012-12-19misc: move include files to include/qemu/Paolo Bonzini
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2012-09-10target-s390x: avoid AREG0 for integer helpersBlue Swirl
Make integer helpers take a parameter for CPUState instead of relying on global env. Signed-off-by: Blue Swirl <blauwirbel@gmail.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2012-09-10target-s390x: split integer helpersBlue Swirl
Move integer helpers to int_helper.c. Signed-off-by: Blue Swirl <blauwirbel@gmail.com> Signed-off-by: Alexander Graf <agraf@suse.de>
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