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[Qemu-devel] [PATCH 04/10] target-arm: fix unsigned 64 bit right shifts.
From: |
Peter Maydell |
Subject: |
[Qemu-devel] [PATCH 04/10] target-arm: fix unsigned 64 bit right shifts. |
Date: |
Tue, 15 Feb 2011 13:44:44 +0000 |
From: Christophe Lyon <address@hidden>
Fix range of shift amounts which always give 0 as result.
Signed-off-by: Christophe Lyon <address@hidden>
Reviewed-by: Peter Maydell <address@hidden>
---
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 2930b5e..a8885fa 100644
--- a/target-arm/neon_helper.c
+++ b/target-arm/neon_helper.c
@@ -639,7 +639,7 @@ 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. */
--
1.7.1
- [Qemu-devel] [PATCH 00/10] Fix Neon shift instructions, Peter Maydell, 2011/02/15
- [Qemu-devel] [PATCH 03/10] target-arm: Fix unsigned VRSHL.s8 and .s16 right shifts by type width, Peter Maydell, 2011/02/15
- [Qemu-devel] [PATCH 10/10] target-arm: Fix shift by immediate and narrow where src, dest overlap, Peter Maydell, 2011/02/15
- [Qemu-devel] [PATCH 08/10] target-arm: Fix signed VQRSHL by large shift counts, Peter Maydell, 2011/02/15
- [Qemu-devel] [PATCH 04/10] target-arm: fix unsigned 64 bit right shifts.,
Peter Maydell <=
- [Qemu-devel] [PATCH 07/10] target-arm: fix decoding of Neon 64 bit shifts., Peter Maydell, 2011/02/15
- [Qemu-devel] [PATCH 05/10] target-arm: Fix saturated values for Neon right shifts, Peter Maydell, 2011/02/15
- [Qemu-devel] [PATCH 02/10] target-arm: Fix signed VRSHL by large shift counts, Peter Maydell, 2011/02/15
- [Qemu-devel] [PATCH 01/10] target-arm: Fix rounding constant addition for Neon shifts, Peter Maydell, 2011/02/15
- [Qemu-devel] [PATCH 06/10] target-arm: fix Neon VQSHRN and VSHRN., Peter Maydell, 2011/02/15
- [Qemu-devel] [PATCH 09/10] target-arm: Fix unsigned VQRSHL by large shift counts, Peter Maydell, 2011/02/15
- [Qemu-devel] Re: [PATCH 00/10] Fix Neon shift instructions, Christophe Lyon, 2011/02/15
- Re: [Qemu-devel] [PATCH 00/10] Fix Neon shift instructions, Aurelien Jarno, 2011/02/20