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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>
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@ -3830,6 +3830,21 @@ static int disas_neon_ls_insn(CPUState * env, DisasContext *s, uint32_t insn)
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size = (insn >> 6) & 3;
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size = (insn >> 6) & 3;
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if (op > 10)
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if (op > 10)
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return 1;
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return 1;
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/* Catch UNDEF cases for bad values of align field */
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switch (op & 0xc) {
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case 4:
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if (((insn >> 5) & 1) == 1) {
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return 1;
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}
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break;
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case 8:
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if (((insn >> 4) & 3) == 3) {
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return 1;
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}
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break;
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default:
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break;
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}
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nregs = neon_ls_element_type[op].nregs;
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nregs = neon_ls_element_type[op].nregs;
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interleave = neon_ls_element_type[op].interleave;
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interleave = neon_ls_element_type[op].interleave;
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spacing = neon_ls_element_type[op].spacing;
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spacing = neon_ls_element_type[op].spacing;
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