First commit

vm.cpp

@@ -0,0 +1,54 @@
+#include "vm.h"
+
+enum OPS {
+	OP_NOP = 0,
+	OP_PUSH,
+	OP_POP,
+	OP_DUP,
+
+	OP_LOAD,
+	OP_STORE,
+
+	OP_JMP,
+	OP_JNT,
+	OP_JTR,
+	OP_JSR,
+	OP_RET,
+	OP_CALL,
+
+	OP_ADD,
+	OP_SUB,
+	OP_MUL,
+	OP_DIV,
+	OP_MOD,
+	OP_AND,
+	OP_OR,
+	OP_NOT,
+	OP_NEG,
+	OP_INC,
+
+	OP_EQ,
+	OP_NEQ,
+	OP_LT,
+	OP_GT
+};
+
+typedef void(*t_extcall)(t_stack&);
+t_extcall external_calls[100];
+int numcallbacks = 0;
+	
+const unsigned char* vm_program = nullptr;
+int vm_pc = 0;
+
+void vm_init(const unsigned char* program) {
+	vm_program = program;
+	vm_pc = 0;
+}
+
+void vm_step() {
+
+}
+
+void vm_register_call(void(*callback)(t_stack&)) {
+	external_calls[numcallbacks++] = callback;
+}