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#define asm_inline __asm__ __volatile__

#pragma pack(push,1)

typedef union{

    unsigned val;

    struct{

        short  x;

        short  y;

    };

}ksys_pos_t;

typedef union ksys_oskey_t{

    unsigned val;

    struct{

        unsigned char state;

        unsigned char code;

        unsigned char ctrl_key;

    };

}ksys_oskey_t;

typedef struct{

  unsigned     handle;

  unsigned     io_code;

  unsigned     *input;

  int          inp_size;

  void         *output;

  int          out_size;

}ksys_ioctl_t;

typedef struct{

    void *data;

    size_t size;

}ksys_ufile_t;

typedef struct{

    unsigned            p00;

    union{

        uint64_t        p04; 

        struct {

            unsigned    p04dw;

            unsigned    p08dw;

        };

    };

    unsigned            p12;

    union {

        unsigned        p16;

        const char     *new_name;

        void           *bdfe;

        void           *buf16;

        const void     *cbuf16;

    };

    char                p20;

    const char         *p21;

}ksys70_t;

typedef struct {

  int cpu_usage;             //+0

  int window_pos_info;       //+4

  short int reserved1;       //+8

  char name[12];             //+10

  int memstart;              //+22

  int memused;               //+26

  int pid;                   //+30

  int winx_start;            //+34

  int winy_start;            //+38

  int winx_size;             //+42

  int winy_size;             //+46

  short int slot_info;       //+50

  short int reserved2;       //+52

  int clientx;               //+54

  int clienty;               //+58

  int clientwidth;           //+62

  int clientheight;          //+66

  unsigned char window_state;//+70

  char reserved3[1024-71];   //+71

}ksys_proc_table_t;

#pragma pack(pop)

static inline 

int _ksys_process_info(ksys_proc_table_t* table, int pid)

{

    int val;

    asm_inline(

        "int $0x40"

        :"=a"(val)

        :"a"(9), "b"(table), "c"(pid)

        :"memory"

    );

    return val;

}

static inline

void _ksys_change_window(int new_x, int new_y, int new_w, int new_h)

{

    asm_inline(

        "int $0x40"

        ::"a"(67), "b"(new_x), "c"(new_y), "d"(new_w),"S"(new_h)

    );

}

static inline

ksys_pos_t _ksys_screen_size()

{

	ksys_pos_t size;

    ksys_pos_t size_tmp;

    asm_inline(

        "int $0x40"

        :"=a"(size_tmp)

        :"a"(14)

        :"memory"

    );

    size.x = size_tmp.y;

    size.y = size_tmp.x; 

    return size;

}

void *memrchr(const void *m, int c, size_t n)

{

	const unsigned char *s = (const unsigned char*)m;

	c = (unsigned char)c;

	while (n--) if (s[n]==c) return (void *)(s+n);

	return 0;

}

void kolibri_set_win_center()

{

    ksys_proc_table_t *info = (ksys_proc_table_t*)malloc(sizeof(ksys_proc_table_t));

    _ksys_process_info(info, -1);

    ksys_pos_t screen_size= _ksys_screen_size();

    int new_x = screen_size.x/2-info->winx_size/2;

    int new_y = screen_size.y/2-info->winy_size/2;

    _ksys_change_window(new_x, new_y, -1, -1); 

    free(info);

}

int mkdir(const char *path, unsigned v)

{

    int status;

    ksys70_t dir_opt;

    dir_opt.p00 = 9;

    dir_opt.p21 = path;

    asm_inline(

        "int $0x40"

        :"=a"(status)

        :"a"(70), "b"(&dir_opt)

        :"memory"

    );

    return status;

}

char *dirname (char *path)

{

  static const char dot[] = ".";

  char *last_slash;

  /* Find last '/'.  */

  last_slash = path != NULL ? strrchr (path, '/') : NULL;

  if (last_slash != NULL && last_slash != path && last_slash[1] == '\0')

    {

      /* Determine whether all remaining characters are slashes.  */

      char *runp;

      for (runp = last_slash; runp != path; --runp)

        if (runp[-1] != '/')

          break;

      /* The '/' is the last character, we have to look further.  */

      if (runp != path)

        last_slash = (char*)memrchr((void*)path, '/', runp - path);

    }

  if (last_slash != NULL)

    {

      /* Determine whether all remaining characters are slashes.  */

      char *runp;

      for (runp = last_slash; runp != path; --runp)

        if (runp[-1] != '/')

          break;

      /* Terminate the path.  */

      if (runp == path)

        {

          /* The last slash is the first character in the string.  We have to

             return "/".  As a special case we have to return "//" if there

             are exactly two slashes at the beginning of the string.  See

             XBD 4.10 Path Name Resolution for more information.  */

          if (last_slash == path + 1)

            ++last_slash;

          else

            last_slash = path + 1;

        }

      else

        last_slash = runp;

      last_slash[0] = '\0';

    }

  else

    /* This assignment is ill-designed but the XPG specs require to

       return a string containing "." in any case no directory part is

       found and so a static and constant string is required.  */

    path = (char *) dot;

  return path;

}

void setcwd(char* path){

    asm_inline(

        "int $0x40"

        ::"a"(30), "b"(1), "c"(path)

        :"memory"

    );