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From: Tom Musta <tommusta@gmail.com>
To: qemu-devel@nongnu.org, qemu-ppc@nongnu.org
Cc: Tom Musta <tommusta@gmail.com>,
	agraf@suse.de, david@gibson.dropbear.id.au
Subject: [Qemu-devel] [V2 PATCH 8/8] target-ppc: Bug Fix: srad
Date: Tue, 12 Aug 2014 08:45:10 -0500	[thread overview]
Message-ID: <1407851110-8075-9-git-send-email-tommusta@gmail.com> (raw)
In-Reply-To: <1407851110-8075-1-git-send-email-tommusta@gmail.com>

Fix the check for carry in the srad helper to properly construct
the mask -- a "1ULL" must be used (instead of "1") in order to
get the desired result.

Example:

R3 8000000000000000
R4 F3511AD4A2CD4C38
srad 3,3,4

Should *not* set XER[CA] but does without this patch.

Signed-off-by: Tom Musta <tommusta@gmail.com>
---
 target-ppc/int_helper.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/target-ppc/int_helper.c b/target-ppc/int_helper.c
index e83a25d..e5b103b 100644
--- a/target-ppc/int_helper.c
+++ b/target-ppc/int_helper.c
@@ -248,7 +248,7 @@ target_ulong helper_srad(CPUPPCState *env, target_ulong value,
         if (likely((uint64_t)shift != 0)) {
             shift &= 0x3f;
             ret = (int64_t)value >> shift;
-            if (likely(ret >= 0 || (value & ((1 << shift) - 1)) == 0)) {
+            if (likely(ret >= 0 || (value & ((1ULL << shift) - 1)) == 0)) {
                 env->ca = 0;
             } else {
                 env->ca = 1;
-- 
1.7.1

  parent reply	other threads:[~2014-08-12 13:46 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-08-12 13:45 [Qemu-devel] [V2 PATCH 0/8] target-ppc: Bug Fixes for 64 Bit FXU Instructions Tom Musta
2014-08-12 13:45 ` [Qemu-devel] [V2 PATCH 1/8] target-ppc: Bug Fix: rlwinm Tom Musta
2014-08-15 20:28   ` Richard Henderson
2014-08-12 13:45 ` [Qemu-devel] [V2 PATCH 2/8] target-ppc: Bug Fix: rlwnm Tom Musta
2014-08-15 20:33   ` Richard Henderson
2014-08-12 13:45 ` [Qemu-devel] [V2 PATCH 3/8] target-ppc: Bug Fix: rlwimi Tom Musta
2014-08-12 13:45 ` [Qemu-devel] [V2 PATCH 4/8] target-ppc: Bug Fix: mullw Tom Musta
2014-08-15 20:36   ` Richard Henderson
2014-08-12 13:45 ` [Qemu-devel] [V2 PATCH 5/8] target-ppc: Bug Fix: mullwo Tom Musta
2014-08-12 13:45 ` [Qemu-devel] [V2 PATCH 6/8] target-ppc: Bug Fix: mulldo OV Detection Tom Musta
2014-08-12 13:45 ` [Qemu-devel] [V2 PATCH 7/8] target-ppc: Bug Fix: srawi Tom Musta
2014-08-15 20:39   ` Richard Henderson
2014-08-12 13:45 ` Tom Musta [this message]
2014-08-12 14:20 ` [Qemu-devel] [V2 PATCH 0/8] target-ppc: Bug Fixes for 64 Bit FXU Instructions Alexander Graf

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