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target-arm: A64: Avoid signed shifts in disas_ldst_pair()

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Avoid shifting potentially negative signed offset values in
disas_ldst_pair() by keeping the offset in a uint64_t rather
than an int64_t.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1423233250-15853-5-git-send-email-peter.maydell@linaro.org
This commit is contained in:
Peter Maydell 2015-02-13 05:46:09 +00:00
parent 037e1d009e
commit c2ebd862a5
1 changed files with 1 additions and 1 deletions
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target-arm/translate-a64.c
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@ -1917,7 +1917,7 @@ static void disas_ldst_pair(DisasContext *s, uint32_t insn)
int rt = extract32(insn, 0, 5);
int rn = extract32(insn, 5, 5);
int rt2 = extract32(insn, 10, 5);
int64_t offset = sextract32(insn, 15, 7);
uint64_t offset = sextract64(insn, 15, 7);
int index = extract32(insn, 23, 2);
bool is_vector = extract32(insn, 26, 1);
bool is_load = extract32(insn, 22, 1);