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authorClifford Wolf <clifford@clifford.at>2013-11-24 05:03:43 +0100
committerClifford Wolf <clifford@clifford.at>2013-11-24 05:03:43 +0100
commit28093d9dd288484daa9df17585c1c9f174498359 (patch)
tree3940c6d3bd95f7c983c76cd6e54bd04216867f3d /backends/spice/spice.cc
parenta4edecb0cae0524b6f42d1a2c64af5a940c67a2f (diff)
Added "top" attribute to mark top module in hierarchy
Diffstat (limited to 'backends/spice/spice.cc')
-rw-r--r--backends/spice/spice.cc5
1 files changed, 5 insertions, 0 deletions
diff --git a/backends/spice/spice.cc b/backends/spice/spice.cc
index 6c8a3ec9..e7926e90 100644
--- a/backends/spice/spice.cc
+++ b/backends/spice/spice.cc
@@ -172,6 +172,11 @@ struct SpiceBackend : public Backend {
}
extra_args(f, filename, args, argidx);
+ if (top_module_name.empty())
+ for (auto & mod_it:design->modules)
+ if (mod_it.second->get_bool_attribute("\\top"))
+ top_module_name = mod_it.first;
+
fprintf(f, "* SPICE netlist generated by %s\n", yosys_version_str);
fprintf(f, "\n");