Commit 4dfabb6d authored by Peter Maydell's avatar Peter Maydell
Browse files

target/arm/translate-a64: Fix FCMLA decoding error 



The FCMLA (by element) instruction exists in the
"vector x indexed element" encoding group, but not in
the "scalar x indexed element" group. Correctly UNDEF
the unallocated encodings.

Reported-by: default avatarLaurent Desnogues <laurent.desnogues@gmail.com>
Signed-off-by: default avatarPeter Maydell <peter.maydell@linaro.org>
Reviewed-by: default avatarLaurent Desnogues <laurent.desnogues@gmail.com>
Message-id: 20190129140411.682-2-peter.maydell@linaro.org
parent 5601be3b

target/arm/translate-a64.c

+1 −1
Original line number Diff line number Diff line
@@ -12650,7 +12650,7 @@ static void disas_simd_indexed(DisasContext *s, uint32_t insn) 
    case 0x13: /* FCMLA #90 */

    case 0x15: /* FCMLA #180 */

    case 0x17: /* FCMLA #270 */

        if (!dc_isar_feature(aa64_fcma, s)) {

        if (is_scalar || !dc_isar_feature(aa64_fcma, s)) {

            unallocated_encoding(s);

            return;

        }