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Display simulation time data

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This commit is contained in:
Miodrag Milanovic 2022-01-31 10:52:47 +01:00
parent a6959d30df
commit 543feb75cb
3 changed files with 27 additions and 2 deletions
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22
kernel/fstdata.cc
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@ -21,10 +21,30 @@
USING_YOSYS_NAMESPACE
FstData::FstData(std::string filename) : ctx(nullptr)
{
const std::vector<std::string> g_units = { "s", "ms", "us", "ns", "ps", "fs", "as", "zs" };
ctx = (fstReaderContext *)fstReaderOpen(filename.c_str());
timescale = pow(10.0, (int)fstReaderGetTimescale(ctx));
int scale = (int)fstReaderGetTimescale(ctx);
timescale = pow(10.0, scale);
timescale_str = "";
int unit = 0;
int zeros = 0;
if (scale > 0) {
zeros = scale;
} else {
if ((scale % 3) == 0) {
zeros = (-scale % 3);
unit = (-scale / 3);
} else {
zeros = 3 - (-scale % 3);
unit = (-scale / 3) + 1;
}
}
for (int i=0;i<zeros; i++) timescale_str += "0";
if (zeros>0)timescale_str += " ";
timescale_str += g_units[unit];
extractVarNames();
}

2
kernel/fstdata.h
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@ -55,6 +55,7 @@ class FstData
std::string valueAt(fstHandle signal, uint64_t time);
fstHandle getHandle(std::string name);
double getTimescale() { return timescale; }
const char *getTimescaleString() { return timescale_str.c_str(); }
private:
void extractVarNames();
@ -69,6 +70,7 @@ private:
std::vector<uint64_t> sample_times;
size_t sample_times_ndx;
double timescale;
std::string timescale_str;
uint64_t start_time;
uint64_t end_time;
std::vector<uint64_t> edges;