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>

1 files changed, 28 insertions, 0 deletions

diff --git a/target/alpha/STATUS b/target/alpha/STATUS
new file mode 100644
index 0000000000..6c9744569e
--- /dev/null
+++ b/target/alpha/STATUS
@@ -0,0 +1,28 @@
+(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.