Commit graph

7 commits

Author SHA1 Message Date
Paolo Bonzini 583cc7b8b1 target/i386: check for empty register in FXAM
The fxam instruction returns the wrong result after fdecstp or after
an underflow. Check fptags to handle this.

Backports commit 93c3593ad04f2610fd0a176dfa89a7e40b6afe1f from qemu
2020-03-21 19:43:24 -04:00
Richard Henderson 187778c781
target/i386: Use env_cpu, env_archcpu
Cleanup in the boilerplate that each target must define.
Replace x86_env_get_cpu with env_archcpu. The combination
CPU(x86_env_get_cpu) should have used ENV_GET_CPU to begin;
use env_cpu now.

Backports commit 6aa9e42f27331be34e06d4d66f92f2272868f96a from qemu
2019-06-12 11:46:35 -04:00
Lioncash c1e72be68d
target/i386/fpu_helper: Perform comparison pass against qemu 2018-03-12 13:15:51 -04:00
Alex Bennée 0eee5afd0e
target/*/cpu.h: remove softfloat.h
As cpu.h is another typically widely included file which doesn't need
full access to the softfloat API we can remove the includes from here
as well. Where they do need types it's typically for float_status and
the rounding modes so we move that to softfloat-types.h as well.

As a result of not having softfloat in every cpu.h call we now need to
add it to various helpers that do need the full softfloat.h
definitions.

Backports commit 24f91e81b65fcdd0552d1f0fcb0ea7cfe3829c19 from qemu
2018-03-08 09:58:47 -05:00
Yang Zhong 0c739344d3
target/i386: split cpu_set_mxcsr() and make cpu_set_fpuc() inline
Split the cpu_set_mxcsr() and make cpu_set_fpuc() inline with specific
tcg code.

Backports commit 1d8ad165b688759bbf00e40431ee9fde8817d190 from qemu
2018-03-03 21:52:29 -05:00
Yang Zhong 24225cb6fa
target/i386: make cpu_get_fp80()/cpu_set_fp80() static
Move cpu_get_fp80()/cpu_set_fp80() from fpu_helper.c to
machine.c because fpu_helper.c will be disabled if tcg is
disabled in the build.

Backports commit db573d2cf7ae6b5a4fc324be6f55e078fc218464 from qemu.
In unicorn's case, they can be moved into unicorn.c
2018-03-03 21:44:09 -05:00
Thomas Huth b2f1326437
Move target-* CPU file into a target/ folder
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.

Backports commit fcf5ef2ab52c621a4617ebbef36bf43b4003f4c0 from qemu
2018-03-01 22:50:58 -05:00
Renamed from qemu/target-i386/fpu_helper.c (Browse further)