/*
  user procedure interface
  name: SYScall
*/

typedef long  T_BOO;
typedef long  T_ANA;
typedef float T_REAL;
typedef long  T_TMR;
typedef char  *T_MSG;

typedef struct {
   /* CALL   */ T_MSG  _command_string;
   /* RETURN */ T_ANA  _error_code;
} str_arg;

#define COMMAND_STRING   (arg->_command_string)
#define ERROR_CODE       (arg->_error_code)
