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-rw-r--r--gowin/main.cc2
1 files changed, 1 insertions, 1 deletions
diff --git a/gowin/main.cc b/gowin/main.cc
index c6697ecc..cbd62ed9 100644
--- a/gowin/main.cc
+++ b/gowin/main.cc
@@ -65,7 +65,7 @@ std::unique_ptr<Context> GowinCommandHandler::createContext(dict<std::string, Pr
// GW1N and GW1NR variants share the same database.
// Most Gowin devices are a System in Package with some SDRAM wirebonded to a GPIO bank.
// However, it appears that the S series with embedded ARM core are unique silicon.
- if (match[1].str() == "S") {
+ if (match[1].str().length() && match[1].str()[0] == 'S') {
snprintf(buf, 36, "GW1NS-%s", match[3].str().c_str());
} else {
snprintf(buf, 36, "GW1N-%s", match[3].str().c_str());