aboutsummaryrefslogtreecommitdiffstats
path: root/kernel
diff options
context:
space:
mode:
authorMiodrag Milanovic <mmicko@gmail.com>2022-02-28 09:09:07 +0100
committerMiodrag Milanovic <mmicko@gmail.com>2022-02-28 09:09:07 +0100
commit8be09b5b24ad5f6a09bbc0bc675ac0be241672ca (patch)
tree56cbcbd935d552b72458fbc9ee495c4302dbc204 /kernel
parentec4af6af2f380f397a17c82701d7b68feaba01fb (diff)
downloadyosys-8be09b5b24ad5f6a09bbc0bc675ac0be241672ca.tar.gz
yosys-8be09b5b24ad5f6a09bbc0bc675ac0be241672ca.tar.bz2
yosys-8be09b5b24ad5f6a09bbc0bc675ac0be241672ca.zip
VCD reader support by using external tool
Diffstat (limited to 'kernel')
-rw-r--r--kernel/fstdata.cc19
-rw-r--r--kernel/fstdata.h1
2 files changed, 20 insertions, 0 deletions
diff --git a/kernel/fstdata.cc b/kernel/fstdata.cc
index af816e57e..587678ce3 100644
--- a/kernel/fstdata.cc
+++ b/kernel/fstdata.cc
@@ -22,8 +22,25 @@
USING_YOSYS_NAMESPACE
+static std::string file_base_name(std::string const & path)
+{
+ return path.substr(path.find_last_of("/\\") + 1);
+}
+
FstData::FstData(std::string filename) : ctx(nullptr)
{
+ #if !defined(YOSYS_DISABLE_SPAWN)
+ std::string filename_trim = file_base_name(filename);
+ if (filename_trim.size() > 4 && filename_trim.compare(filename_trim.size()-4, std::string::npos, ".vcd") == 0) {
+ filename_trim.erase(filename_trim.size()-4);
+ tmp_file = stringf("/tmp/converted_%s.fst", filename_trim.c_str());
+ std::string cmd = stringf("vcd2fst %s %s", filename.c_str(), tmp_file.c_str());
+ log("Exec: %s\n", cmd.c_str());
+ if (run_command(cmd) != 0)
+ log_cmd_error("Shell command failed!\n");
+ filename = tmp_file;
+ }
+ #endif
const std::vector<std::string> g_units = { "s", "ms", "us", "ns", "ps", "fs", "as", "zs" };
ctx = (fstReaderContext *)fstReaderOpen(filename.c_str());
if (!ctx)
@@ -53,6 +70,8 @@ FstData::~FstData()
{
if (ctx)
fstReaderClose(ctx);
+ if (!tmp_file.empty())
+ remove(tmp_file.c_str());
}
uint64_t FstData::getStartTime() { return fstReaderGetStartTime(ctx); }
diff --git a/kernel/fstdata.h b/kernel/fstdata.h
index 707d1b64e..4a355fd77 100644
--- a/kernel/fstdata.h
+++ b/kernel/fstdata.h
@@ -74,6 +74,7 @@ private:
CallbackFunction callback;
std::vector<fstHandle> clk_signals;
bool all_samples;
+ std::string tmp_file;
};
YOSYS_NAMESPACE_END