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# Date Author Comment
d68a6f3a 02/20/2011 06:31 pm Peter Maydell

target-arm: Move Neon VZIP to helper functions

Move the implementation of the Neon VUZP unzip instruction from inline
code to helper functions. (At 50+ TCG ops it was well over the
recommended limit for coding inline.) The helper implementations also
give the correct answers where the inline implementation did not....

02acedf9 02/20/2011 06:31 pm Peter Maydell

target-arm: Move Neon VUZP to helper functions

Move the implementation of the Neon VUZP unzip instruction from inline
code to helper functions. (At 50+ TCG ops it was well over the
recommended limit for coding inline.) The helper implementations also
fix the handling of the quadword version of the instruction....

e5ca24cb 02/20/2011 06:26 pm Peter Maydell

target-arm: Implement VMULL.P8

Implement VMULL.P8 (the 32x32->64 version of the polynomial multiply
instruction).

Signed-off-by: Peter Maydell <>
Signed-off-by: Aurelien Jarno <>

f2f27b9f 02/10/2011 10:21 pm Peter Maydell

target-arm: Remove stray #include from middle of neon_helper.c

Remove a stray #include <stdio.h> from the middle of neon_helper.c:
it was harmless but pointless since we include stdio.h at the top
of the file anyway.

Signed-off-by: Peter Maydell <>...

cc2212c2 02/09/2011 08:37 pm Peter Maydell

target-arm: Fix 32 bit signed saturating narrow

The returned value when doing saturating signed 64->32 bit
conversion of a negative number was incorrect due to a missing cast.

Signed-off-by: Peter Maydell <>
Signed-off-by: Aurelien Jarno <>

af1bbf30 02/09/2011 08:37 pm Juha Riihimäki

target-arm: Fix VQMOVUN Neon instruction.

VQMOVUN does a signed-to-unsigned saturating conversion. This is
different from both the signed-to-signed and unsigned-to-unsigned
conversions already implemented, so we need a new set of helper
functions (neon_unarrow_sat*)....

72902672 02/04/2011 09:57 pm Christophe Lyon

Set the right overflow bit for neon 32 and 64 bit saturating add/sub.

Signed-off-by: Christophe Lyon <>
Reviewed-by: Peter Maydell <>
Signed-off-by: Aurelien Jarno <>

46eece9d 01/29/2011 04:16 pm Juha Riihimäki

target-arm: Fix Neon VQDMULH.S16 instructions

Correct an error in the implementation of the 16 bit
forms of VQDMULH, bringing them into line with the
32 bit implementation.

Signed-off-by: Juha Riihimäki <>
Reviewed-by: Peter Maydell <>...

4ca4502c 01/12/2011 01:06 am Juha Riihimäki

ARM: add neon helpers for VQSHLU

Add neon helper functions to implement VQSHLU, which is a
signed-to-unsigned version of VQSHL available only as an
immediate form.

Signed-off-by: Juha Riihimäki <>
Reviewed-by: Aurelien Jarno <>...

a5d88f3e 12/27/2010 10:07 pm Peter Maydell

target-arm: Correct result in saturating cases for VQSHL of s8/16/32

Where VQSHL of a signed 8/16/32 bit value saturated, the result
value was not being calculated correctly (it should be either
the minimum or maximum value for the size of the signed type)....

620d791e 12/27/2010 10:07 pm Juha Riihimäki

target-arm: remove pointless else clause in VQSHL of u64

Remove a pointless else clause in the neon_qshl_u64 helper.

Signed-off-by: Juha Riihimäki <>
Reviewed-by: Peter Maydell <>
Signed-off-by: Aurelien Jarno <>

eb7a3d79 12/27/2010 10:07 pm Peter Maydell

target-arm: Fix VQSHL of signed 64 bit values by shift counts >= 64

VQSHL of a signed 64 bit non-zero value by a shift count >= 64 should
saturate; return the correct value in this case.

Signed-off-by: Peter Maydell <>
Signed-off-by: Aurelien Jarno <>

4c9b70ae 12/27/2010 10:07 pm Juha Riihimäki

target-arm: Fix VQSHL of signed 64 bit values

Add a missing '-' which meant that we were misinterpreting the shift
argument for VQSHL of 64 bit signed values and treating almost every
shift value as if it were an extremely large right shift.

Signed-off-by: Juha Riihimäki <>...

50f67e95 10/27/2009 10:46 am Juha Riihimäki

target-arm: fix neon shift helper functions

Current code is broken at least on recent compilers, comparison
between signed and unsigned types yield incorrect code and render
the neon shift helper functions defunct. This is the third revision
of this patch, casting all comparisons with the sizeof operator to...

e2542fe2 07/27/2009 10:09 pm Juan Quintela

rename WORDS_BIGENDIAN to HOST_WORDS_BIGENDIAN

Signed-off-by: Juan Quintela <>
Signed-off-by: Anthony Liguori <>

cb76e138 05/10/2009 01:12 am Paul Brook

Fixe ARM NEON vrshl.

Signed-off-by: Paul Brook <>

1654b2d6 04/11/2008 07:55 am aurel32

Fix few spelling issues in comments

(Stefan Weil)

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4187 c046a42c-6fe2-441c-8c8c-71466251a162

e677137d 03/31/2008 06:49 am pbrook

ARM TCG conversion 15/16.

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4152 c046a42c-6fe2-441c-8c8c-71466251a162

ad69471c 03/31/2008 06:48 am pbrook

ARM TCG conversion 14/16.

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4151 c046a42c-6fe2-441c-8c8c-71466251a162