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Support cast to numbers from strings.

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This commit is contained in:
Wilson Snyder
2023-02-28 23:34:33 -05:00
parent c6a569df49
commit b1a95f642f
9 changed files with 201 additions and 3 deletions
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include/verilated.cpp
+27
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@@ -1868,6 +1868,33 @@ IData VL_ATOI_N(const std::string& str, int base) VL_PURE {
if (errno != 0) v = 0;
return static_cast<IData>(v);
}
IData VL_NTOI_I(int obits, const std::string& str) VL_PURE { return VL_NTOI_Q(obits, str); }
QData VL_NTOI_Q(int obits, const std::string& str) VL_PURE {
QData out = 0;
const size_t procLen = std::min(str.length(), static_cast<size_t>(8));
const char* const datap = str.data();
int pos = static_cast<int>(str.length()) - 1;
int bit = 0;
while (bit < obits && pos >= 0) {
out |= static_cast<QData>(datap[pos]) << VL_BITBIT_Q(bit);
bit += 8;
--pos;
}
return out & VL_MASK_Q(obits);
}
void VL_NTOI_W(int obits, WDataOutP owp, const std::string& str) VL_PURE {
const int words = VL_WORDS_I(obits);
for (int i = 0; i < words; ++i) owp[i] = 0;
const char* const datap = str.data();
int pos = static_cast<int>(str.length()) - 1;
int bit = 0;
while (bit < obits && pos >= 0) {
owp[VL_BITWORD_I(bit)] |= static_cast<EData>(datap[pos]) << VL_BITBIT_I(bit);
bit += 8;
--pos;
}
owp[words - 1] &= VL_MASK_E(obits);
}
//===========================================================================
// Readmem/writemem