Minor usability improvements (#48)

[riscv-isa-sim.git] / riscv / interactive.cc

diff --git a/riscv/interactive.cc b/riscv/interactive.cc
index 69f2461d69be40f5f497858df583b88358085910..d24ec50714e9d707fbb1be793f09b6dc50500c5c 100644 (file)
--- a/riscv/interactive.cc
+++ b/riscv/interactive.cc
@@ -100,6 +100,8 @@ void sim_t::interactive()
     {
       if(funcs.count(cmd))
         (this->*funcs[cmd])(cmd, args);
+      else
+        fprintf(stderr, "Unknown command %s\n", cmd.c_str());
     }
     catch(trap_t t) {}
   }