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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>
This commit is contained in:
Peter Maydell 2011-04-11 16:26:19 +01:00 committed by Aurelien Jarno
parent 3e3326dfb0
commit 52579ea1c2
1 changed files with 4 additions and 0 deletions
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4
target-arm/translate.c
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@ -5514,6 +5514,10 @@ static int disas_neon_data_insn(CPUState * env, DisasContext *s, uint32_t insn)
if (imm > 7 && !q) if (imm > 7 && !q)
return 1; return 1;
if (q && ((rd | rn | rm) & 1)) {
return 1;
}
if (imm == 0) { if (imm == 0) {
neon_load_reg64(cpu_V0, rn); neon_load_reg64(cpu_V0, rn);
if (q) { if (q) {