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[Qemu-devel] [PATCH 42/48] target-arm: fix signed narrow 64->32 operatio
From: |
Riku Voipio |
Subject: |
[Qemu-devel] [PATCH 42/48] target-arm: fix signed narrow 64->32 operation |
Date: |
Fri, 26 Mar 2010 16:07:02 +0000 |
From: Juha Riihimäki <address@hidden>
Signed-Off-By: Riku Voipio <address@hidden>
Signed-off-by: Juha Riihimäki <address@hidden>
---
target-arm/neon_helper.c | 8 ++++++--
1 files changed, 6 insertions(+), 2 deletions(-)
diff --git a/target-arm/neon_helper.c b/target-arm/neon_helper.c
index 4604698..910f84a 100644
--- a/target-arm/neon_helper.c
+++ b/target-arm/neon_helper.c
@@ -1183,9 +1183,13 @@ uint32_t HELPER(neon_narrow_sat_u32)(CPUState *env,
uint64_t x)
uint32_t HELPER(neon_narrow_sat_s32)(CPUState *env, uint64_t x)
{
- if ((int64_t)x != (int32_t)x) {
+ if ((int64_t)x < -2147483648ll) {
SET_QC();
- return (x >> 63) ^ 0x7fffffff;
+ return 0x80000000;
+ }
+ if ((int64_t)x > 2147483647ll) {
+ SET_QC();
+ return 0x7fffffff;
}
return x;
}
--
1.6.5
- [Qemu-devel] [PATCH 38/48] target-arm: fix neon vrshl instruction, (continued)
- [Qemu-devel] [PATCH 38/48] target-arm: fix neon vrshl instruction, Riku Voipio, 2010/03/26
- [Qemu-devel] [PATCH 40/48] target-arm: fix neon v(r)sra instructions, Riku Voipio, 2010/03/26
- [Qemu-devel] [PATCH 39/48] target-arm: fix neon vrshr instruction, Riku Voipio, 2010/03/26
- [Qemu-devel] [PATCH 25/48] blizzard: fix for non-32bpp host displays, Riku Voipio, 2010/03/26
- [Qemu-devel] [PATCH 09/48] console change headers, Riku Voipio, 2010/03/26
- [Qemu-devel] [PATCH 48/48] usb: fix -usbdevice option handling with no parameters, Riku Voipio, 2010/03/26
- [Qemu-devel] [PATCH 46/48] target-arm: fix neon vrsqrts instruction, Riku Voipio, 2010/03/26
- [Qemu-devel] [PATCH 45/48] target-arm: fix neon vcvt fixed-point, Riku Voipio, 2010/03/26
- [Qemu-devel] [PATCH 43/48] target-arm: fix neon vq(r)dmulh.s16 instructions, Riku Voipio, 2010/03/26
- [Qemu-devel] [PATCH 42/48] target-arm: fix signed narrow 64->32 operation,
Riku Voipio <=
- [Qemu-devel] [PATCH 41/48] target-arm: fix neon vld1 single element to all lanes, Riku Voipio, 2010/03/26
- [Qemu-devel] [PATCH 35/48] target-arm: fix neon vmon/vmvn with modified immediate, Riku Voipio, 2010/03/26
- [Qemu-devel] [PATCH 32/48] Add beagleboard and n900 machine definitions, Riku Voipio, 2010/03/26
- [Qemu-devel] [PATCH 12/48] cocoa frontend changes, Riku Voipio, 2010/03/26
- [Qemu-devel] [PATCH 22/48] License update, Riku Voipio, 2010/03/26
- [Qemu-devel] [PATCH 44/48] target-arm: fix neon v(q)(r)shrn instructions, Riku Voipio, 2010/03/26
- [Qemu-devel] [PATCH 21/48] NAND emulation overhaul, Riku Voipio, 2010/03/26
- [Qemu-devel] [PATCH 04/48] audio: fix integer overflow expression, Riku Voipio, 2010/03/26