From: Juha Riihimäki <juha.riihimaki@nokia.com>
Date: Mon, 11 Apr 2011 15:26:23 +0000 (+0100)
Subject: target-arm: Handle UNDEF cases for VDUP (scalar)
X-Git-Tag: v0.15.0-rc0~482
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=133da6aae1edc0118fbac8cd9ba46dff69ddd5c9;p=thirdparty%2Fqemu.git

target-arm: Handle UNDEF cases for VDUP (scalar)

Handle the UNDEF cases for VDUP(scalar):
 imm4 == x000
 Q == 1 && Vd<0> == 1

Signed-off-by: Juha Riihimäki <juha.riihimaki@nokia.com>
Reviewed-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 be25c8f33ae..6190028d082 100644
--- a/target-arm/translate.c
+++ b/target-arm/translate.c
@@ -6057,6 +6057,9 @@ static int disas_neon_data_insn(CPUState * env, DisasContext *s, uint32_t insn)
                 tcg_temp_free_i32(tmp);
             } else if ((insn & 0x380) == 0) {
                 /* VDUP */
+                if ((insn & (7 << 16)) == 0 || (q && (rd & 1))) {
+                    return 1;
+                }
                 if (insn & (1 << 19)) {
                     tmp = neon_load_reg(rm, 1);
                 } else {