mirror of
https://github.com/verilator/verilator.git
synced 2026-09-06 08:57:23 +02:00
Various minor optimizations of VCD trace routines
- Change templated trace routines to branch table. Removed templating from trace chgBus and fullBus and replaced them with a branch table like the other there is a very small (< 1%) penalty for this on SwerRV EH1 CoreMark, but this is less than the variability of disk IO so it's worth it to keep the code simpler and smaller. - Prefetch VCD suffix buffer at the top of emit* - Increase ILP in VCD emit* routines - Use a 64-bit unaligned store to emit the VCD suffix (on x86 only) The performance difference with these is very small, but the changes hopefully make this code more performance-portable across various micro-architectures.
This commit is contained in:
Geza Lore
+158
-86
@@ -611,15 +611,20 @@ void VerilatedVcd::declTriArray(vluint32_t code, const char* name, bool array, i
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//=============================================================================
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// Emit trace entries
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#define VL_VCD_SUFFIXP(code) (m_suffixesp + (code)*VL_TRACE_SUFFIX_ENTRY_SIZE)
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// Emit suffix, write back write pointer, check buffer
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void VerilatedVcd::finishLine(vluint32_t code, char* writep) {
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const char* const suffixp = m_suffixesp + code * VL_TRACE_SUFFIX_ENTRY_SIZE;
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const char* const suffixp = VL_VCD_SUFFIXP(code);
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// Copy the whole suffix (this avoid having hard to predict branches which
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// helps a lot). Note suffixp could be aligned, so could load it in one go,
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// but then we would be endiannes dependent which we don't have a way to
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// test right now and probably would make little difference...
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// Note: The maximum length of the suffix is
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// helps a lot). Note: The maximum length of the suffix is
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// VL_TRACE_MAX_VCD_CODE_SIZE + 2 == 7, but we unroll this here for speed.
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#ifdef __x86_64__
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// Copy the whole 8 bytes in one go, this works on little-endian machines
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// supporting unaligned stores.
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*reinterpret_cast<vluint64_t*>(writep) = *reinterpret_cast<const vluint64_t*>(suffixp);
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#else
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// Portable variant
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writep[0] = suffixp[0];
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writep[1] = suffixp[1];
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writep[2] = suffixp[2];
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@@ -627,139 +632,202 @@ void VerilatedVcd::finishLine(vluint32_t code, char* writep) {
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writep[4] = suffixp[4];
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writep[5] = suffixp[5];
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writep[6] = '\n'; // The 6th index is always '\n' if it's relevant, no need to fetch it.
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#endif
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// Now write back the write pointer incremented by the actual size of the
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// suffix, which was stored in the last byte of the suffix buffer entry.
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m_writep = writep + suffixp[VL_TRACE_SUFFIX_ENTRY_SIZE - 1];
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bufferCheck();
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}
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// Note: emit* are only ever called from one place (full* in
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// verilated_trace_imp.cpp, which is included in this file at the top),
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// so always inline them.
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VL_ATTR_ALWINLINE
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void VerilatedVcd::emitBit(vluint32_t code, vluint32_t newval) {
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// Don't prefetch suffix as it's a bit too late;
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char* wp = m_writep;
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*wp++ = '0' | static_cast<char>(newval);
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finishLine(code, wp);
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}
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template <int T_Bits> void VerilatedVcd::emitBus(vluint32_t code, vluint32_t newval) {
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VL_ATTR_ALWINLINE
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void VerilatedVcd::emitBus(vluint32_t code, vluint32_t newval, int bits) {
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VL_PREFETCH_RD(VL_VCD_SUFFIXP(code));
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char* wp = m_writep;
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*wp++ = 'b';
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newval <<= 32 - T_Bits;
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int bits = T_Bits;
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do {
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*wp++ = '0' | static_cast<char>(newval >> 31);
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newval <<= 1;
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} while (--bits);
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wp += bits;
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// clang-format off
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switch (bits) {
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case 32: wp[-32] = '0' | static_cast<char>((newval >> 31) ); //FALLTHRU
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case 31: wp[-31] = '0' | static_cast<char>((newval >> 30) & 1); //FALLTHRU
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case 30: wp[-30] = '0' | static_cast<char>((newval >> 29) & 1); //FALLTHRU
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case 29: wp[-29] = '0' | static_cast<char>((newval >> 28) & 1); //FALLTHRU
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case 28: wp[-28] = '0' | static_cast<char>((newval >> 27) & 1); //FALLTHRU
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case 27: wp[-27] = '0' | static_cast<char>((newval >> 26) & 1); //FALLTHRU
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case 26: wp[-26] = '0' | static_cast<char>((newval >> 25) & 1); //FALLTHRU
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case 25: wp[-25] = '0' | static_cast<char>((newval >> 24) & 1); //FALLTHRU
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case 24: wp[-24] = '0' | static_cast<char>((newval >> 23) & 1); //FALLTHRU
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case 23: wp[-23] = '0' | static_cast<char>((newval >> 22) & 1); //FALLTHRU
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case 22: wp[-22] = '0' | static_cast<char>((newval >> 21) & 1); //FALLTHRU
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case 21: wp[-21] = '0' | static_cast<char>((newval >> 20) & 1); //FALLTHRU
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case 20: wp[-20] = '0' | static_cast<char>((newval >> 19) & 1); //FALLTHRU
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case 19: wp[-19] = '0' | static_cast<char>((newval >> 18) & 1); //FALLTHRU
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case 18: wp[-18] = '0' | static_cast<char>((newval >> 17) & 1); //FALLTHRU
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case 17: wp[-17] = '0' | static_cast<char>((newval >> 16) & 1); //FALLTHRU
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case 16: wp[-16] = '0' | static_cast<char>((newval >> 15) & 1); //FALLTHRU
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case 15: wp[-15] = '0' | static_cast<char>((newval >> 14) & 1); //FALLTHRU
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case 14: wp[-14] = '0' | static_cast<char>((newval >> 13) & 1); //FALLTHRU
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case 13: wp[-13] = '0' | static_cast<char>((newval >> 12) & 1); //FALLTHRU
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case 12: wp[-12] = '0' | static_cast<char>((newval >> 11) & 1); //FALLTHRU
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case 11: wp[-11] = '0' | static_cast<char>((newval >> 10) & 1); //FALLTHRU
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case 10: wp[-10] = '0' | static_cast<char>((newval >> 9) & 1); //FALLTHRU
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case 9: wp[ -9] = '0' | static_cast<char>((newval >> 8) & 1); //FALLTHRU
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case 8: wp[ -8] = '0' | static_cast<char>((newval >> 7) & 1); //FALLTHRU
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case 7: wp[ -7] = '0' | static_cast<char>((newval >> 6) & 1); //FALLTHRU
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case 6: wp[ -6] = '0' | static_cast<char>((newval >> 5) & 1); //FALLTHRU
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case 5: wp[ -5] = '0' | static_cast<char>((newval >> 4) & 1); //FALLTHRU
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case 4: wp[ -4] = '0' | static_cast<char>((newval >> 3) & 1); //FALLTHRU
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case 3: wp[ -3] = '0' | static_cast<char>((newval >> 2) & 1); //FALLTHRU
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case 2: wp[ -2] = '0' | static_cast<char>((newval >> 1) & 1); //FALLTHRU
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/*bit*/ wp[ -1] = '0' | static_cast<char>((newval ) & 1); //FALLTHRU
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}
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// clang-format on
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finishLine(code, wp);
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}
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VL_ATTR_ALWINLINE
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void VerilatedVcd::emitQuad(vluint32_t code, vluint64_t newval, int bits) {
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VL_PREFETCH_RD(VL_VCD_SUFFIXP(code));
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char* wp = m_writep;
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*wp++ = 'b';
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newval <<= 64 - bits;
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// Handle the top 32 bits within the 64 bit input
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const int bitsInTopHalf = bits - 32;
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wp += bitsInTopHalf;
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// clang-format off
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switch (bitsInTopHalf) {
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case 32: wp[-32] = '0' | static_cast<char>(newval >> 63); newval<<=1; //FALLTHRU
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case 31: wp[-31] = '0' | static_cast<char>(newval >> 63); newval<<=1; //FALLTHRU
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case 30: wp[-30] = '0' | static_cast<char>(newval >> 63); newval<<=1; //FALLTHRU
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case 29: wp[-29] = '0' | static_cast<char>(newval >> 63); newval<<=1; //FALLTHRU
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case 28: wp[-28] = '0' | static_cast<char>(newval >> 63); newval<<=1; //FALLTHRU
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case 27: wp[-27] = '0' | static_cast<char>(newval >> 63); newval<<=1; //FALLTHRU
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case 26: wp[-26] = '0' | static_cast<char>(newval >> 63); newval<<=1; //FALLTHRU
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case 25: wp[-25] = '0' | static_cast<char>(newval >> 63); newval<<=1; //FALLTHRU
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case 24: wp[-24] = '0' | static_cast<char>(newval >> 63); newval<<=1; //FALLTHRU
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case 23: wp[-23] = '0' | static_cast<char>(newval >> 63); newval<<=1; //FALLTHRU
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case 22: wp[-22] = '0' | static_cast<char>(newval >> 63); newval<<=1; //FALLTHRU
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case 21: wp[-21] = '0' | static_cast<char>(newval >> 63); newval<<=1; //FALLTHRU
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case 20: wp[-20] = '0' | static_cast<char>(newval >> 63); newval<<=1; //FALLTHRU
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case 19: wp[-19] = '0' | static_cast<char>(newval >> 63); newval<<=1; //FALLTHRU
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case 18: wp[-18] = '0' | static_cast<char>(newval >> 63); newval<<=1; //FALLTHRU
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case 17: wp[-17] = '0' | static_cast<char>(newval >> 63); newval<<=1; //FALLTHRU
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case 16: wp[-16] = '0' | static_cast<char>(newval >> 63); newval<<=1; //FALLTHRU
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case 15: wp[-15] = '0' | static_cast<char>(newval >> 63); newval<<=1; //FALLTHRU
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case 14: wp[-14] = '0' | static_cast<char>(newval >> 63); newval<<=1; //FALLTHRU
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case 13: wp[-13] = '0' | static_cast<char>(newval >> 63); newval<<=1; //FALLTHRU
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case 12: wp[-12] = '0' | static_cast<char>(newval >> 63); newval<<=1; //FALLTHRU
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case 11: wp[-11] = '0' | static_cast<char>(newval >> 63); newval<<=1; //FALLTHRU
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case 10: wp[-10] = '0' | static_cast<char>(newval >> 63); newval<<=1; //FALLTHRU
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case 9: wp[ -9] = '0' | static_cast<char>(newval >> 63); newval<<=1; //FALLTHRU
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case 8: wp[ -8] = '0' | static_cast<char>(newval >> 63); newval<<=1; //FALLTHRU
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case 7: wp[ -7] = '0' | static_cast<char>(newval >> 63); newval<<=1; //FALLTHRU
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case 6: wp[ -6] = '0' | static_cast<char>(newval >> 63); newval<<=1; //FALLTHRU
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case 5: wp[ -5] = '0' | static_cast<char>(newval >> 63); newval<<=1; //FALLTHRU
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case 4: wp[ -4] = '0' | static_cast<char>(newval >> 63); newval<<=1; //FALLTHRU
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case 3: wp[ -3] = '0' | static_cast<char>(newval >> 63); newval<<=1; //FALLTHRU
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case 2: wp[ -2] = '0' | static_cast<char>(newval >> 63); newval<<=1; //FALLTHRU
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case 1: wp[ -1] = '0' | static_cast<char>(newval >> 63); newval<<=1; //FALLTHRU
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case 32: wp[-32] = '0' | static_cast<char>((newval >> 63) ); //FALLTHRU
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case 31: wp[-31] = '0' | static_cast<char>((newval >> 62) & 1); //FALLTHRU
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case 30: wp[-30] = '0' | static_cast<char>((newval >> 61) & 1); //FALLTHRU
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case 29: wp[-29] = '0' | static_cast<char>((newval >> 60) & 1); //FALLTHRU
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case 28: wp[-28] = '0' | static_cast<char>((newval >> 59) & 1); //FALLTHRU
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case 27: wp[-27] = '0' | static_cast<char>((newval >> 58) & 1); //FALLTHRU
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case 26: wp[-26] = '0' | static_cast<char>((newval >> 57) & 1); //FALLTHRU
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case 25: wp[-25] = '0' | static_cast<char>((newval >> 56) & 1); //FALLTHRU
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case 24: wp[-24] = '0' | static_cast<char>((newval >> 55) & 1); //FALLTHRU
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case 23: wp[-23] = '0' | static_cast<char>((newval >> 54) & 1); //FALLTHRU
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case 22: wp[-22] = '0' | static_cast<char>((newval >> 53) & 1); //FALLTHRU
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case 21: wp[-21] = '0' | static_cast<char>((newval >> 52) & 1); //FALLTHRU
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case 20: wp[-20] = '0' | static_cast<char>((newval >> 51) & 1); //FALLTHRU
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case 19: wp[-19] = '0' | static_cast<char>((newval >> 50) & 1); //FALLTHRU
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case 18: wp[-18] = '0' | static_cast<char>((newval >> 49) & 1); //FALLTHRU
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case 17: wp[-17] = '0' | static_cast<char>((newval >> 48) & 1); //FALLTHRU
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case 16: wp[-16] = '0' | static_cast<char>((newval >> 47) & 1); //FALLTHRU
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case 15: wp[-15] = '0' | static_cast<char>((newval >> 46) & 1); //FALLTHRU
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case 14: wp[-14] = '0' | static_cast<char>((newval >> 45) & 1); //FALLTHRU
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case 13: wp[-13] = '0' | static_cast<char>((newval >> 44) & 1); //FALLTHRU
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case 12: wp[-12] = '0' | static_cast<char>((newval >> 43) & 1); //FALLTHRU
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case 11: wp[-11] = '0' | static_cast<char>((newval >> 42) & 1); //FALLTHRU
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case 10: wp[-10] = '0' | static_cast<char>((newval >> 41) & 1); //FALLTHRU
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case 9: wp[ -9] = '0' | static_cast<char>((newval >> 40) & 1); //FALLTHRU
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case 8: wp[ -8] = '0' | static_cast<char>((newval >> 39) & 1); //FALLTHRU
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case 7: wp[ -7] = '0' | static_cast<char>((newval >> 38) & 1); //FALLTHRU
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case 6: wp[ -6] = '0' | static_cast<char>((newval >> 37) & 1); //FALLTHRU
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case 5: wp[ -5] = '0' | static_cast<char>((newval >> 36) & 1); //FALLTHRU
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case 4: wp[ -4] = '0' | static_cast<char>((newval >> 35) & 1); //FALLTHRU
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case 3: wp[ -3] = '0' | static_cast<char>((newval >> 34) & 1); //FALLTHRU
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case 2: wp[ -2] = '0' | static_cast<char>((newval >> 33) & 1); //FALLTHRU
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case 1: wp[ -1] = '0' | static_cast<char>((newval >> 32) & 1); //FALLTHRU
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}
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// clang-format on
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// Handle the bottom 32 bits within the 64 bit input
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int remaining = 32;
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vluint32_t val = static_cast<vluint32_t>(newval); // Truncate to bottom 32 bits
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int loops = 4;
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do {
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*wp++ = '0' | static_cast<char>(newval >> 63);
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newval <<= 1;
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} while (--remaining);
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wp[0] = '0' | static_cast<char>((val >> 31));
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wp[1] = '0' | static_cast<char>((val >> 30) & 1);
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wp[2] = '0' | static_cast<char>((val >> 29) & 1);
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wp[3] = '0' | static_cast<char>((val >> 28) & 1);
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wp[4] = '0' | static_cast<char>((val >> 27) & 1);
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wp[5] = '0' | static_cast<char>((val >> 26) & 1);
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wp[6] = '0' | static_cast<char>((val >> 25) & 1);
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wp[7] = '0' | static_cast<char>((val >> 24) & 1);
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wp += 8;
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val <<= 8;
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} while (--loops);
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finishLine(code, wp);
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}
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VL_ATTR_ALWINLINE
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void VerilatedVcd::emitArray(vluint32_t code, const vluint32_t* newvalp, int bits) {
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VL_PREFETCH_RD(VL_VCD_SUFFIXP(code));
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int words = (bits + 31) / 32;
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char* wp = m_writep;
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*wp++ = 'b';
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// Handle the most significant word
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vluint32_t val = newvalp[--words];
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const int bitsInMSW = bits % 32 == 0 ? 32 : bits % 32;
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vluint32_t val = newvalp[--words] << (32 - bitsInMSW);
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wp += bitsInMSW;
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// clang-format off
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switch (bitsInMSW) {
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case 32: wp[-32] = '0' | static_cast<char>(val >> 31); val<<=1; //FALLTHRU
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case 31: wp[-31] = '0' | static_cast<char>(val >> 31); val<<=1; //FALLTHRU
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case 30: wp[-30] = '0' | static_cast<char>(val >> 31); val<<=1; //FALLTHRU
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case 29: wp[-29] = '0' | static_cast<char>(val >> 31); val<<=1; //FALLTHRU
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case 28: wp[-28] = '0' | static_cast<char>(val >> 31); val<<=1; //FALLTHRU
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case 27: wp[-27] = '0' | static_cast<char>(val >> 31); val<<=1; //FALLTHRU
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case 26: wp[-26] = '0' | static_cast<char>(val >> 31); val<<=1; //FALLTHRU
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case 25: wp[-25] = '0' | static_cast<char>(val >> 31); val<<=1; //FALLTHRU
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case 24: wp[-24] = '0' | static_cast<char>(val >> 31); val<<=1; //FALLTHRU
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case 23: wp[-23] = '0' | static_cast<char>(val >> 31); val<<=1; //FALLTHRU
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case 22: wp[-22] = '0' | static_cast<char>(val >> 31); val<<=1; //FALLTHRU
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case 21: wp[-21] = '0' | static_cast<char>(val >> 31); val<<=1; //FALLTHRU
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case 20: wp[-20] = '0' | static_cast<char>(val >> 31); val<<=1; //FALLTHRU
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case 19: wp[-19] = '0' | static_cast<char>(val >> 31); val<<=1; //FALLTHRU
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case 18: wp[-18] = '0' | static_cast<char>(val >> 31); val<<=1; //FALLTHRU
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case 17: wp[-17] = '0' | static_cast<char>(val >> 31); val<<=1; //FALLTHRU
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case 16: wp[-16] = '0' | static_cast<char>(val >> 31); val<<=1; //FALLTHRU
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case 15: wp[-15] = '0' | static_cast<char>(val >> 31); val<<=1; //FALLTHRU
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case 14: wp[-14] = '0' | static_cast<char>(val >> 31); val<<=1; //FALLTHRU
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case 13: wp[-13] = '0' | static_cast<char>(val >> 31); val<<=1; //FALLTHRU
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case 12: wp[-12] = '0' | static_cast<char>(val >> 31); val<<=1; //FALLTHRU
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case 11: wp[-11] = '0' | static_cast<char>(val >> 31); val<<=1; //FALLTHRU
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case 10: wp[-10] = '0' | static_cast<char>(val >> 31); val<<=1; //FALLTHRU
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case 9: wp[ -9] = '0' | static_cast<char>(val >> 31); val<<=1; //FALLTHRU
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case 8: wp[ -8] = '0' | static_cast<char>(val >> 31); val<<=1; //FALLTHRU
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case 7: wp[ -7] = '0' | static_cast<char>(val >> 31); val<<=1; //FALLTHRU
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case 6: wp[ -6] = '0' | static_cast<char>(val >> 31); val<<=1; //FALLTHRU
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case 5: wp[ -5] = '0' | static_cast<char>(val >> 31); val<<=1; //FALLTHRU
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case 4: wp[ -4] = '0' | static_cast<char>(val >> 31); val<<=1; //FALLTHRU
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case 3: wp[ -3] = '0' | static_cast<char>(val >> 31); val<<=1; //FALLTHRU
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case 2: wp[ -2] = '0' | static_cast<char>(val >> 31); val<<=1; //FALLTHRU
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case 1: wp[ -1] = '0' | static_cast<char>(val >> 31); val<<=1; //FALLTHRU
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case 32: wp[-32] = '0' | static_cast<char>((val >> 31) ); //FALLTHRU
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case 31: wp[-31] = '0' | static_cast<char>((val >> 30) & 1); //FALLTHRU
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case 30: wp[-30] = '0' | static_cast<char>((val >> 29) & 1); //FALLTHRU
|
||||
case 29: wp[-29] = '0' | static_cast<char>((val >> 28) & 1); //FALLTHRU
|
||||
case 28: wp[-28] = '0' | static_cast<char>((val >> 27) & 1); //FALLTHRU
|
||||
case 27: wp[-27] = '0' | static_cast<char>((val >> 26) & 1); //FALLTHRU
|
||||
case 26: wp[-26] = '0' | static_cast<char>((val >> 25) & 1); //FALLTHRU
|
||||
case 25: wp[-25] = '0' | static_cast<char>((val >> 24) & 1); //FALLTHRU
|
||||
case 24: wp[-24] = '0' | static_cast<char>((val >> 23) & 1); //FALLTHRU
|
||||
case 23: wp[-23] = '0' | static_cast<char>((val >> 22) & 1); //FALLTHRU
|
||||
case 22: wp[-22] = '0' | static_cast<char>((val >> 21) & 1); //FALLTHRU
|
||||
case 21: wp[-21] = '0' | static_cast<char>((val >> 20) & 1); //FALLTHRU
|
||||
case 20: wp[-20] = '0' | static_cast<char>((val >> 19) & 1); //FALLTHRU
|
||||
case 19: wp[-19] = '0' | static_cast<char>((val >> 18) & 1); //FALLTHRU
|
||||
case 18: wp[-18] = '0' | static_cast<char>((val >> 17) & 1); //FALLTHRU
|
||||
case 17: wp[-17] = '0' | static_cast<char>((val >> 16) & 1); //FALLTHRU
|
||||
case 16: wp[-16] = '0' | static_cast<char>((val >> 15) & 1); //FALLTHRU
|
||||
case 15: wp[-15] = '0' | static_cast<char>((val >> 14) & 1); //FALLTHRU
|
||||
case 14: wp[-14] = '0' | static_cast<char>((val >> 13) & 1); //FALLTHRU
|
||||
case 13: wp[-13] = '0' | static_cast<char>((val >> 12) & 1); //FALLTHRU
|
||||
case 12: wp[-12] = '0' | static_cast<char>((val >> 11) & 1); //FALLTHRU
|
||||
case 11: wp[-11] = '0' | static_cast<char>((val >> 10) & 1); //FALLTHRU
|
||||
case 10: wp[-10] = '0' | static_cast<char>((val >> 9) & 1); //FALLTHRU
|
||||
case 9: wp[ -9] = '0' | static_cast<char>((val >> 8) & 1); //FALLTHRU
|
||||
case 8: wp[ -8] = '0' | static_cast<char>((val >> 7) & 1); //FALLTHRU
|
||||
case 7: wp[ -7] = '0' | static_cast<char>((val >> 6) & 1); //FALLTHRU
|
||||
case 6: wp[ -6] = '0' | static_cast<char>((val >> 5) & 1); //FALLTHRU
|
||||
case 5: wp[ -5] = '0' | static_cast<char>((val >> 4) & 1); //FALLTHRU
|
||||
case 4: wp[ -4] = '0' | static_cast<char>((val >> 3) & 1); //FALLTHRU
|
||||
case 3: wp[ -3] = '0' | static_cast<char>((val >> 2) & 1); //FALLTHRU
|
||||
case 2: wp[ -2] = '0' | static_cast<char>((val >> 1) & 1); //FALLTHRU
|
||||
case 1: wp[ -1] = '0' | static_cast<char>((val ) & 1); //FALLTHRU
|
||||
}
|
||||
// clang-format on
|
||||
// Handle the remaining words
|
||||
while (words > 0) {
|
||||
vluint32_t val = newvalp[--words];
|
||||
int bits = 32;
|
||||
int loops = 4;
|
||||
do {
|
||||
*wp++ = '0' | static_cast<char>(val >> 31);
|
||||
val <<= 1;
|
||||
} while (--bits);
|
||||
wp[0] = '0' | static_cast<char>((val >> 31));
|
||||
wp[1] = '0' | static_cast<char>((val >> 30) & 1);
|
||||
wp[2] = '0' | static_cast<char>((val >> 29) & 1);
|
||||
wp[3] = '0' | static_cast<char>((val >> 28) & 1);
|
||||
wp[4] = '0' | static_cast<char>((val >> 27) & 1);
|
||||
wp[5] = '0' | static_cast<char>((val >> 26) & 1);
|
||||
wp[6] = '0' | static_cast<char>((val >> 25) & 1);
|
||||
wp[7] = '0' | static_cast<char>((val >> 24) & 1);
|
||||
wp += 8;
|
||||
val <<= 8;
|
||||
} while (--loops);
|
||||
}
|
||||
finishLine(code, wp);
|
||||
}
|
||||
|
||||
VL_ATTR_ALWINLINE
|
||||
void VerilatedVcd::emitFloat(vluint32_t code, float newval) {
|
||||
VL_PREFETCH_RD(VL_VCD_SUFFIXP(code));
|
||||
char* wp = m_writep;
|
||||
// Buffer can't overflow before sprintf; we sized during declaration
|
||||
sprintf(wp, "r%.16g", static_cast<double>(newval));
|
||||
@@ -767,7 +835,9 @@ void VerilatedVcd::emitFloat(vluint32_t code, float newval) {
|
||||
finishLine(code, wp);
|
||||
}
|
||||
|
||||
VL_ATTR_ALWINLINE
|
||||
void VerilatedVcd::emitDouble(vluint32_t code, double newval) {
|
||||
VL_PREFETCH_RD(VL_VCD_SUFFIXP(code));
|
||||
char* wp = m_writep;
|
||||
// Buffer can't overflow before sprintf; we sized during declaration
|
||||
sprintf(wp, "r%.16g", newval);
|
||||
@@ -775,6 +845,8 @@ void VerilatedVcd::emitDouble(vluint32_t code, double newval) {
|
||||
finishLine(code, wp);
|
||||
}
|
||||
|
||||
#undef VL_VCD_SUFFIXP
|
||||
|
||||
#ifdef VL_TRACE_VCD_OLD_API
|
||||
|
||||
void VerilatedVcd::fullBit(vluint32_t code, const vluint32_t newval) {
|
||||
|
||||
Reference in New Issue
Block a user