Generate random single instructions

gen/opcode.go

@@ -0,0 +1,52 @@
+package gen
+
+import "math/rand"
+
+import "github.com/firestuff/subcoding/vm"
+
+var opCodes = []vm.OpCodeType{
+	vm.OpNop,
+
+	vm.OpMov,
+
+	vm.OpAdd,
+	vm.OpSub,
+	vm.OpMul,
+	vm.OpDivU,
+	vm.OpDivS,
+
+	vm.OpNot,
+	vm.OpAnd,
+	vm.OpOr,
+	vm.OpXor,
+
+	vm.OpShR,
+	vm.OpShL,
+
+	vm.OpEq,
+	vm.OpLTU,
+	vm.OpLTS,
+	vm.OpGTU,
+	vm.OpGTS,
+	vm.OpLTEU,
+	vm.OpLTES,
+	vm.OpGTEU,
+	vm.OpGTES,
+
+	vm.OpJmp,
+	vm.OpJmpT,
+	vm.OpJmpF,
+
+	vm.OpCal,
+	vm.OpCalT,
+	vm.OpCalF,
+
+	vm.OpRet,
+	vm.OpRetT,
+	vm.OpRetF,
+}
+
+func randOpCode() vm.OpCodeType {
+	// Uniform distribution
+	return opCodes[rand.Intn(len(opCodes))]
+}