[Qemu-devel] [PATCH 09/13] target-arm: Handle UNDEF cases for VEXT

[Peter Maydell]

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

Signed-off-by: Peter Maydell <address@hidden>
---
 target-arm/translate.c |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)

diff --git a/target-arm/translate.c b/target-arm/translate.c
index 15c2015..f47e5ea 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) {
-- 
1.7.1