path: root/target-alpha/STATUS
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authorj_mayer <j_mayer@c046a42c-6fe2-441c-8c8c-71466251a162>2007-10-21 09:46:04 +0000
committerj_mayer <j_mayer@c046a42c-6fe2-441c-8c8c-71466251a162>2007-10-21 09:46:04 +0000
commit615e2dba4f9d6f06fb7dcd3b13f20bac5d8e274d (patch)
tree8be730990d019c8621f84467d1e300395ea82d28 /target-alpha/STATUS
parenta47b8d38b79b5208fb96464a92c3cd7ae3d51ac0 (diff)
New status file for Alpha emulation target.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3422 c046a42c-6fe2-441c-8c8c-71466251a162
Diffstat (limited to 'target-alpha/STATUS')
1 files changed, 33 insertions, 0 deletions
diff --git a/target-alpha/STATUS b/target-alpha/STATUS
new file mode 100644
index 0000000000..8b7f352fbb
--- /dev/null
+++ b/target-alpha/STATUS
@@ -0,0 +1,33 @@
+(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.c : Alpha dedicated micro-operations used by the code translator
+op_helper.c : helpers that can be called only from micro-operations
+op_helper.h : micro-operations helpers prototypes
+op_helper_mem.h : micro-operations templates
+ for load and stores accesses helpers
+op_mem.h : micro-operations templates for load and stores accesses
+op_template.h : micro-operation templates for register moves
+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 implemented.
+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 prooved...
+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.