[*] Initial commit

lonetix/bgp/vm_cdef.h

@@ -0,0 +1,33 @@
+// SPDX-License-Identifier: LGPL-3.0-or-later
+
+/**
+ * \file bgp/vm_cdef.c
+ *
+ * Portable implementation for BGP VM execution loop
+ *
+ * \copyright The DoubleFourteen Code Forge (C) All Rights Reserved
+ * \author    Lorenzo Cogotti
+ *
+ * Plain C switch based FETCH-DECODE-DISPATCH-EXECUTE BGP filtering
+ * engine VM implementation
+ *
+ * \note File should be `#include`d by bgp/vm.c
+ */
+
+#ifdef DF_BGP_VMDEF_H_
+#error "Only one vm_<impl>def.h file may be #include-d"
+#endif
+#define DF_BGP_VMDEF_H_
+
+#define LIKELY
+#define UNLIKELY
+
+#define FETCH(ir, vm) (ir = (vm)->prog[(vm)->pc++])
+
+#define EXPECT(opcode, ir, vm) ((void) 0)
+
+#define DISPATCH(opcode) switch (opcode)
+
+#define EXECUTE(opcode)  case BGP_VMOP_ ## opcode
+
+#define EXECUTE_SIGILL   default