enum ops {
	OP_END,
	OP_EVENT,
	OP_NUMBER,
	OP_PLUS, OP_MINUS,
	OP_MUL, OP_DIV, OP_MOD,
	OP_NEGATE,
	OP_CALL, OP_RET,
	OP_OR, OP_AND, OP_XOR, OP_NOT,
	OP_SHL, OP_SHR,
};

struct symbol;
void put_op(enum ops op);
void put_long(enum ops op, long arg);
void put_ptr(enum ops op, void *arg);
void code_init(unsigned char *buf, unsigned bufl);
void start_def(struct symbol *s);
void end_def(struct symbol *s);
long execute(unsigned char *bufp);