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Fix to zero possibly uninitialized bits in replications (#3815)

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This commit is contained in:
Wilson Snyder
2022-12-15 22:00:21 -05:00
parent 2eafd82696
commit 073af8e1f2
2 changed files with 38 additions and 28 deletions
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include/verilated.cpp
+3 -2
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@@ -1095,12 +1095,13 @@ static char* _vl_vsss_read_bin(FILE* fp, int& floc, const WDataInP fromp, const
}
return beginp;
}
static void _vl_vsss_setbit(WDataOutP owp, int obits, int lsb, int nbits, IData ld) VL_MT_SAFE {
for (; nbits && lsb < obits; nbits--, lsb++, ld >>= 1) { VL_ASSIGNBIT_WI(lsb, owp, ld & 1); }
static void _vl_vsss_setbit(WDataOutP iowp, int obits, int lsb, int nbits, IData ld) VL_MT_SAFE {
for (; nbits && lsb < obits; nbits--, lsb++, ld >>= 1) VL_ASSIGNBIT_WI(lsb, iowp, ld & 1);
}
static void _vl_vsss_based(WDataOutP owp, int obits, int baseLog2, const char* strp,
size_t posstart, size_t posend) VL_MT_SAFE {
// Read in base "2^^baseLog2" digits from strp[posstart..posend-1] into owp of size obits.
VL_ZERO_W(obits, owp);
int lsb = 0;
for (int i = 0, pos = static_cast<int>(posend) - 1;
i < obits && pos >= static_cast<int>(posstart); --pos) {