qemu-devel
[Top][All Lists]
Advanced
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

[Qemu-devel] [PATCH] target-arm: When setting FPSCR.QC, don't clear othe

From: Matt Craighead
Subject: [Qemu-devel] [PATCH] target-arm: When setting FPSCR.QC, don't clear other FPSCR bits
Date: Sun, 6 May 2012 21:45:03 -0500
This patch fixes a bug affecting a variety of Neon instructions, such as VQADD.


Signed-off-by: Matt Craighead <address@hidden>
---
 target-arm/neon_helper.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/target-arm/neon_helper.c b/target-arm/neon_helper.c
index 1e02d61..e0b9dbf 100644
--- a/target-arm/neon_helper.c
+++ b/target-arm/neon_helper.c
@@ -16,7 +16,7 @@
 #define SIGNBIT (uint32_t)0x80000000
 #define SIGNBIT64 ((uint64_t)1 << 63)
 
-#define SET_QC() env->vfp.xregs[ARM_VFP_FPSCR] = CPSR_Q
+#define SET_QC() env->vfp.xregs[ARM_VFP_FPSCR] |= CPSR_Q
 
 #define NEON_TYPE1(name, type) \
 typedef struct \
--
1.7.9.5


reply via email to
[Prev in Thread] Current Thread [Next in Thread]