diff options
| author | H. Peter Anvin (Intel) <hpa@zytor.com> | 2025-08-29 12:11:45 +0200 |
|---|---|---|
| committer | Jan Beulich <jbeulich@suse.com> | 2025-08-29 12:11:45 +0200 |
| commit | 69746a4f73b6ec2da6b1fd346dcf7d7a2458ac46 (patch) | |
| tree | 19d79dd91bb3e3be55251bb94c3312601dbf6f7f /gdb/python/python.c | |
| parent | b2a6590c91b8b0a4de0e3a3df18dbc3a80dbc017 (diff) | |
| download | binutils-69746a4f73b6ec2da6b1fd346dcf7d7a2458ac46.zip binutils-69746a4f73b6ec2da6b1fd346dcf7d7a2458ac46.tar.gz binutils-69746a4f73b6ec2da6b1fd346dcf7d7a2458ac46.tar.bz2 | |
x86: add "udb" opcode (permanent official #UD in 64-bit mode)
The opcode D6 has been officially reserved as a single-byte permanent
undefined (#UD) opcode in 64-bit mode with the mnemonic UDB. This is
already the behavior of all known 64-bit implementations; this is thus
merely an official statement of forward compatibility and the
assignment of a mnemonic.
This will be documented in the next version of the Intel Software
Developer's Manual; in the meantime I DO speak officially for Intel on
this issue.
The x86 Advisory Council has ratified this decision, and so it is
expected to be honored across vendors, but I obviously cannot make any
official statement on any other vendor's behalf.
I am covered by the Intel-FSF copyright assignment for binutils.
Signed-off-by: H. Peter Anvin (Intel) <hpa@zytor.com>
Diffstat (limited to 'gdb/python/python.c')
0 files changed, 0 insertions, 0 deletions