From: Peter Maydell <peter.maydell@linaro.org>
Date: Mon, 11 Apr 2011 15:26:19 +0000 (+0100)
Subject: target-arm: Handle UNDEF cases for VEXT
X-Git-Tag: v0.15.0-rc0~486
X-Git-Url: https://git.proxmox.com/?a=commitdiff_plain;h=52579ea1c201ce10a5fe6f5734373543e462e345;p=qemu.git

target-arm: Handle UNDEF cases for VEXT

VEXT must UNDEF if Q == 1 && (Vd<0> == 1 || Vr<0> == 1 || Vm<0> == 1)

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
---

diff --git a/target-arm/translate.c b/target-arm/translate.c
index 15c2015d9..f47e5ea48 100644
--- a/target-arm/translate.c
+++ b/target-arm/translate.c
@@ -5514,6 +5514,10 @@ static int disas_neon_data_insn(CPUState * env, DisasContext *s, uint32_t insn)
                 if (imm > 7 && !q)
                     return 1;
 
+                if (q && ((rd | rn | rm) & 1)) {
+                    return 1;
+                }
+
                 if (imm == 0) {
                     neon_load_reg64(cpu_V0, rn);
                     if (q) {