All of lore.kernel.org
 help / color / mirror / Atom feed
From: <christophe.lyon@st.com>
To: qemu-devel@nongnu.org
Subject: [Qemu-devel] [PATCH 3/6] target-arm: fix unsigned 64 bit right shifts.
Date: Fri, 11 Feb 2011 16:10:59 +0100	[thread overview]
Message-ID: <1297437062-6118-4-git-send-email-christophe.lyon@st.com> (raw)
In-Reply-To: <1297437062-6118-1-git-send-email-christophe.lyon@st.com>

From: Christophe Lyon <christophe.lyon@st.com>

Fix range of shift amounts which always give 0 as result.

Signed-off-by: Christophe Lyon <christophe.lyon@st.com>
---
 target-arm/neon_helper.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/target-arm/neon_helper.c b/target-arm/neon_helper.c
index 1ac362f..907f7b7 100644
--- a/target-arm/neon_helper.c
+++ b/target-arm/neon_helper.c
@@ -656,7 +656,7 @@ uint32_t HELPER(neon_rshl_u32)(uint32_t val, uint32_t shiftop)
 uint64_t HELPER(neon_rshl_u64)(uint64_t val, uint64_t shiftop)
 {
     int8_t shift = (uint8_t)shiftop;
-    if (shift >= 64 || shift < 64) {
+    if (shift >= 64 || shift < -64) {
         val = 0;
     } else if (shift == -64) {
         /* Rounding a 1-bit result just preserves that bit.  */
-- 
1.7.2.3

  parent reply	other threads:[~2011-02-11 15:11 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-02-11 15:10 [Qemu-devel] [PATCH v3 0/6] target-arm: Fix Neon shift instructions christophe.lyon
2011-02-11 15:10 ` [Qemu-devel] [PATCH 1/6] target-arm: Fix rounding constant addition for " christophe.lyon
2011-02-14 18:12   ` Peter Maydell
2011-02-15 10:07     ` Christophe Lyon
2011-02-11 15:10 ` [Qemu-devel] [PATCH 2/6] target-arm: fix Neon right shifts with shift amount == input width christophe.lyon
2011-02-14 18:16   ` Peter Maydell
2011-02-15 13:47     ` Christophe Lyon
2011-02-11 15:10 ` christophe.lyon [this message]
2011-02-14 17:40   ` [Qemu-devel] [PATCH 3/6] target-arm: fix unsigned 64 bit right shifts Peter Maydell
2011-02-11 15:11 ` [Qemu-devel] [PATCH 4/6] target-arm: fix saturated values for Neon " christophe.lyon
2011-02-14 17:46   ` Peter Maydell
2011-02-14 17:49     ` Peter Maydell
2011-02-15 14:06     ` Christophe Lyon
2011-02-11 15:11 ` [Qemu-devel] [PATCH 5/6] target-arm: fix Neon VQSHRN and VSHRN christophe.lyon
2011-02-14 17:41   ` Peter Maydell
2011-02-11 15:11 ` [Qemu-devel] [PATCH 6/6] target-arm: fix decoding of Neon 64 bit shifts christophe.lyon
2011-02-14 17:53   ` Peter Maydell
2011-02-14 18:18 ` [Qemu-devel] [PATCH v3 0/6] target-arm: Fix Neon shift instructions Peter Maydell
2011-02-15 14:03   ` Christophe Lyon
2011-02-15 14:21     ` Peter Maydell
2011-02-15 14:49       ` Christophe Lyon

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=1297437062-6118-4-git-send-email-christophe.lyon@st.com \
    --to=christophe.lyon@st.com \
    --cc=qemu-devel@nongnu.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.