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| author | Peter Maydell <peter.maydell@linaro.org> | 2011-04-18 19:07:12 +0100 |
|---|---|---|
| committer | Aurelien Jarno <aurelien@aurel32.net> | 2011-04-25 22:10:12 +0200 |
| commit | f2dd89d0c7e5d39237f43392ccaed79bda47a71e (patch) | |
| tree | 619fb5df50431d1e2a502ecbe6712a3f1aa15776 | |
| parent | 93262b1625ecb9c6ff22d5a51f38e312b5b7725a (diff) | |
| download | qemu-f2dd89d0c7e5d39237f43392ccaed79bda47a71e.zip qemu-f2dd89d0c7e5d39237f43392ccaed79bda47a71e.tar.gz qemu-f2dd89d0c7e5d39237f43392ccaed79bda47a71e.tar.bz2 | |
target-arm: Handle UNDEF cases for Neon VLD/VST multiple-structures
Correctly UNDEF for Neon VLD/VST "multiple structures" forms where the
align field is not valid.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
| -rw-r--r-- | target-arm/translate.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/target-arm/translate.c b/target-arm/translate.c index 80b25ac..8b309d4 100644 --- a/target-arm/translate.c +++ b/target-arm/translate.c @@ -3830,6 +3830,21 @@ static int disas_neon_ls_insn(CPUState * env, DisasContext *s, uint32_t insn) size = (insn >> 6) & 3; if (op > 10) return 1; + /* Catch UNDEF cases for bad values of align field */ + switch (op & 0xc) { + case 4: + if (((insn >> 5) & 1) == 1) { + return 1; + } + break; + case 8: + if (((insn >> 4) & 3) == 3) { + return 1; + } + break; + default: + break; + } nregs = neon_ls_element_type[op].nregs; interleave = neon_ls_element_type[op].interleave; spacing = neon_ls_element_type[op].spacing; |