Currently zero extensions ops are implemented by a and op with a
constant. This is then catched in some backend, and replaced by
a zero extension instruction. While this works well on RISC
machines, this adds a useless register move on non-RISC machines.

Example on x86:
  ext16u_i32 r1, r2
is translated into
  mov    %eax,%ebx
  movzwl %bx, %ebx
while the optimized version should be:
  movzwl %ax, %ebx

This patch adds ext{8,16,32}u_i{32,64} TCG ops that can be
implemented in the backends to avoid emitting useless register
moves.
Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>

Make an "#if 0"'d printf() in load_elf_binary(), probably left to aid in
debugging, reflect what the actual code does. The current printf() will
only confuse those who "#if 1" it (it certainly confused me enough to
write this trivial patch).
Signed-off-by: NPaul Bolle <pebolle@tiscali.nl>
Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>

If available, the Universally Unique Identifier library
is used by the vdi block driver.

Other parts of QEMU (vl.c) could also use it.
Signed-off-by: NStefan Weil <weil@mail.berlios.de>
Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>

MULTI_REQ is never defined, so it doesn't matter much, but since
we have an if statement there, let's add {} to clarify what it
should do if it's uncommented, and indent the code properly.
Signed-off-by: NMichael S. Tsirkin <mst@redhat.com>
Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>

Signed-off-by: Nmalc <av1474@comtv.ru>

Signed-off-by: NJuan Quintela <quintela@redhat.com>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

OpenSolaris ld seems to miss the equivalent of GNU ld's "-Ttext 0".
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

OpenSolaris headers can't export madvise() with a sane set of #defines.
For background, see MySQL bug #7156 (http://bugs.mysql.com/bug.php?id=7156)
for discussion about Solaris header problems.
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

Looks like linux-user code was correct, just unreadable: what it wanted
to do with "-=" was really assign a negative number, not decrement.  Fix
up accordingly.
Reported-by: NLaurent Desnogues <laurent.desnogues@gmail.com>
Signed-off-by: NMichael S. Tsirkin <mst@redhat.com>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

Fix missing ; in commented out code
Signed-off-by: NMichael S. Tsirkin <mst@redhat.com>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

Increase buffer size but do not rely on ALSA picking up default period
size.
Signed-off-by: Nmalc <av1474@comtv.ru>

Additional argument (whether to try poll mode) is only passed with
VOICE_ENABLE command.

Thanks to Markus Armbruster for noticing the potential breakage.

In the very least, a change like this requires discussion on the list.

The naming convention is goofy and it causes a massive merge problem.  Something
like this _must_ be presented on the list first so people can provide input
and cope with it.

This reverts commit 99a0949b.
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

Some not so obvious bits, slirp and Xen were left alone for the time
being.
Signed-off-by: Nmalc <av1474@comtv.ru>

Signed-off-by: NEdgar E. Iglesias <edgar.iglesias@gmail.com>

Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>

Use globals for the 8 or 16 CPU registers on i386 and x86_64.
Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>

inofficial -> unofficial

Thanks to Blue Swirl.
Signed-off-by: NStefan Weil <weil@mail.berlios.de>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

Fix another place with =- to be "= -".
to avoid confusion with old-style "-="
(which we also have, and needs to be fixed).
Signed-off-by: NMichael S. Tsirkin <mst@redhat.com>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

Fix unmatched bracket in commented out code
Signed-off-by: NMichael S. Tsirkin <mst@redhat.com>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

Put space between = and - assigning a negative number
to avoid confusion with old-style "-="
(which we also have, and need to be fixed).
Signed-off-by: NMichael S. Tsirkin <mst@redhat.com>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

Put space between = and & when taking a pointer,
to avoid confusion with old-style "&=".
Signed-off-by: NMichael S. Tsirkin <mst@redhat.com>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

Fix unmatched braket in commented out code
Signed-off-by: NMichael S. Tsirkin <mst@redhat.com>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

Modern compilers do not parse "=-" as decrement:
you must use "-=" for that.
Signed-off-by: NMichael S. Tsirkin <mst@redhat.com>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

Modern compilers do not parse "=-" as decrement:
you must use "-=" for that. Same for "=+"/"+=".
Signed-off-by: NMichael S. Tsirkin <mst@redhat.com>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

Fix unbalanced {} in commented out code.
Signed-off-by: NMichael S. Tsirkin <mst@redhat.com>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

Put space between = and - assigning a negative number
to avoid confusion with old-style "-="
(which we also have, and needs to be fixed).
Signed-off-by: NMichael S. Tsirkin <mst@redhat.com>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

Put space between = and * when dereferencing a pointer,
to avoid confusion with old-style "*="
Signed-off-by: NMichael S. Tsirkin <mst@redhat.com>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

Put space between = and * when dereferencing a pointer,
to avoid confusion with old-style "*="
Signed-off-by: NMichael S. Tsirkin <mst@redhat.com>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

Put space between = and & when taking a pointer,
to avoid confusion with old-style "&=".
Signed-off-by: NMichael S. Tsirkin <mst@redhat.com>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

Signed-off-by: Nmalc <av1474@comtv.ru>

Committed by accident.
Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>

Broken by 4a1418e0Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>

Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>

Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>

Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>

GetLastError() returns a DWORD.
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

Based on 379f6698.
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

We must take care that dec/inc do not compute CF, which is needed by
add2/sub2.
Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>