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-rw-r--r--backends/cxxrtl/cxxrtl.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/backends/cxxrtl/cxxrtl.h b/backends/cxxrtl/cxxrtl.h
index ce21cc1e6..10184bb3f 100644
--- a/backends/cxxrtl/cxxrtl.h
+++ b/backends/cxxrtl/cxxrtl.h
@@ -165,8 +165,8 @@ struct value : public expr_base<value<Bits>> {
carry = (shift_bits == 0) ? 0
: data[n] >> (chunk::bits - shift_bits);
}
- if (carry != 0)
- result.data[result.chunks - 1] = carry;
+ if (shift_chunks + chunks < result.chunks)
+ result.data[shift_chunks + chunks] = carry;
return result;
}