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-rw-r--r--techlibs/greenpak4/synth_greenpak4.cc2
1 files changed, 2 insertions, 0 deletions
diff --git a/techlibs/greenpak4/synth_greenpak4.cc b/techlibs/greenpak4/synth_greenpak4.cc
index 10e2a1498..dac256822 100644
--- a/techlibs/greenpak4/synth_greenpak4.cc
+++ b/techlibs/greenpak4/synth_greenpak4.cc
@@ -36,6 +36,8 @@ struct SynthGreenPAK4Pass : public ScriptPass
log(" synth_greenpak4 [options]\n");
log("\n");
log("This command runs synthesis for GreenPAK4 FPGAs. This work is experimental.\n");
+ log("It is intended to be used with https://github.com/azonenberg/openfpga as the\n");
+ log("place-and-route.\n");
log("\n");
log(" -top <module>\n");
log(" use the specified module as top module (default='top')\n");