xemu/target/alpha/STATUS
Thomas Huth fcf5ef2ab5 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.

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>
2016-12-20 21:52:12 +01:00

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(to be completed)
Alpha emulation structure:
cpu.h : CPU definitions globally exported
exec.h : CPU definitions used only for translated code execution
helper.c : helpers that can be called either by the translated code
or the QEMU core, including the exception handler.
op_helper.c : helpers that can be called only from TCG
helper.h : TCG helpers prototypes
translate.c : Alpha instructions to micro-operations translator
Code translator status:
The Alpha CPU instruction emulation should be quite complete with the
limitation that the VAX floating-point load and stores are not tested.
The 4 MMU modes are implemented.
Linux user mode emulation status:
a few programs start to run. Most crash at a certain point, dereferencing a
NULL pointer. It seems that the UNIQUE register is not initialized properly.
It may appear that old executables, not relying on TLS support, run but
this is to be proved...
Full system emulation status:
* Alpha PALCode emulation is in a very early stage and is not sufficient
to run any real OS. The alpha-softmmu target is not enabled for now.
* no hardware platform description is implemented
* there might be problems in the Alpha PALCode dedicated instructions
that would prevent to use a native PALCode image.