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2017-06-29target/m68k: add fmovemLaurent Vivier
Signed-off-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Richard Henderson <rth@twiddle.net> Message-Id: <20170628204241.32106-8-laurent@vivier.eu>
2017-06-29target/m68k: add explicit single and double precision operations (part 2)Laurent Vivier
Add fsabs, fdabs, fsneg, fdneg, fsmove and fdmove. The value is converted using the new floatx80_round() function. Signed-off-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Richard Henderson <rth@twiddle.net> Message-Id: <20170628204241.32106-7-laurent@vivier.eu>
2017-06-29target/m68k: add fsglmul and fsgldivLaurent Vivier
fsglmul and fsgldiv truncate data to single precision before computing results. Signed-off-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Richard Henderson <rth@twiddle.net> Message-Id: <20170628204241.32106-6-laurent@vivier.eu>
2017-06-29target/m68k: add explicit single and double precision operationsLaurent Vivier
Add fssqrt, fdsqrt, fsadd, fdadd, fssub, fdsub, fsmul, fdmul, fsdiv, fddiv. The precision is managed using set_floatx80_rounding_precision(). Signed-off-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Richard Henderson <rth@twiddle.net> Message-Id: <20170628204241.32106-4-laurent@vivier.eu>
2017-06-29target/m68k: add fmovecrLaurent Vivier
fmovecr moves a floating point constant from the FPU ROM to a floating point register. Signed-off-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Richard Henderson <rth@twiddle.net> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Message-Id: <20170628204241.32106-3-laurent@vivier.eu>
2017-06-21target-m68k: add FPCR and FPSRLaurent Vivier
Signed-off-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Richard Henderson <rth@twiddle.net> Message-Id: <20170620205121.26515-6-laurent@vivier.eu>
2017-06-21target-m68k: use floatx80 internallyLaurent Vivier
Coldfire uses float64, but 680x0 use floatx80. This patch introduces the use of floatx80 internally and enables 680x0 80bits FPU. Signed-off-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Richard Henderson <rth@twiddle.net> Message-Id: <20170620205121.26515-4-laurent@vivier.eu>
2017-01-14target-m68k: Implement bfffoRichard Henderson
Signed-off-by: Richard Henderson <rth@twiddle.net> Message-Id: <1479242669-25852-1-git-send-email-rth@twiddle.net> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2017-01-14target-m68k: Implement bitfield ops for memoryRichard Henderson
Signed-off-by: Richard Henderson <rth@twiddle.net> Message-Id: <1478699171-10637-6-git-send-email-rth@twiddle.net> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2016-12-27target-m68k: Inline shiftsRichard Henderson
Also manage word and byte operands and fix the computation of overflow in the case of M68000 arithmetic shifts. Signed-off-by: Laurent Vivier <laurent@vivier.eu> Signed-off-by: Richard Henderson <rth@twiddle.net> Message-Id: <1478699171-10637-4-git-send-email-rth@twiddle.net>
2016-12-27target-m68k: add cas/cas2 opsLaurent Vivier
Implement CAS using cmpxchg. Implement CAS2 using helper and either cmpxchg when the 32bit addresses are consecutive, or with parallel_cpus+cpu_loop_exit_atomic() otherwise. Suggested-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Richard Henderson <rth@twiddle.net>
2016-12-27target-m68k: add 680x0 divu/divs variantsLaurent Vivier
Update helper to set the throwing location in case of div-by-0. Cleanup divX.w and add quad word variants of divX.l. Signed-off-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Richard Henderson <rth@twidle.net> [laurent: modified to clear Z on overflow, as found with risu]
2016-12-20Move target-* CPU file into a target/ folderThomas Huth
We've currently got 18 architectures in QEMU, and thus 18 target-xxx folders in the root folder of the QEMU source tree. More architectures (e.g. RISC-V, AVR) are likely to be included soon, too, so the main folder of the QEMU sources slowly gets quite overcrowded with the target-xxx folders. To disburden the main folder a little bit, let's move the target-xxx folders into a dedicated target/ folder, so that target-xxx/ simply becomes target/xxx/ instead. Acked-by: Laurent Vivier <laurent@vivier.eu> [m68k part] Acked-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de> [tricore part] Acked-by: Michael Walle <michael@walle.cc> [lm32 part] Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com> [s390x part] Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com> [s390x part] Acked-by: Eduardo Habkost <ehabkost@redhat.com> [i386 part] Acked-by: Artyom Tarasenko <atar4qemu@gmail.com> [sparc part] Acked-by: Richard Henderson <rth@twiddle.net> [alpha part] Acked-by: Max Filippov <jcmvbkbc@gmail.com> [xtensa part] Reviewed-by: David Gibson <david@gibson.dropbear.id.au> [ppc part] Acked-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com> [cris&microblaze part] Acked-by: Guan Xuetao <gxt@mprc.pku.edu.cn> [unicore32 part] Signed-off-by: Thomas Huth <thuth@redhat.com>