diff --git a/riscv/execute.h b/riscv/execute.h
index d5c69d74..8c8ae901 100644
--- a/riscv/execute.h
+++ b/riscv/execute.h
@@ -249,15 +249,6 @@ switch((insn.bits >> 0x19) & 0x7f)
         }
         #include "insns/unimp.h"
       }
-      case 0x2:
-      {
-        if((insn.bits & 0xfe007fff) == 0xd4002000)
-        {
-          #include "insns/cfc1.h"
-          break;
-        }
-        #include "insns/unimp.h"
-      }
       case 0x4:
       {
         if((insn.bits & 0xfe007fff) == 0xd4004000)
@@ -276,15 +267,6 @@ switch((insn.bits >> 0x19) & 0x7f)
         }
         #include "insns/unimp.h"
       }
-      case 0x6:
-      {
-        if((insn.bits & 0xfe007fff) == 0xd4006000)
-        {
-          #include "insns/ctc1.h"
-          break;
-        }
-        #include "insns/unimp.h"
-      }
       default:
       {
         #include "insns/unimp.h"
diff --git a/riscv/insns/cfc1.h b/riscv/insns/cfc1.h
deleted file mode 100644
index e69de29b..00000000
diff --git a/riscv/insns/ctc1.h b/riscv/insns/ctc1.h
deleted file mode 100644
index e69de29b..00000000