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#ifndef _KSYS_H_

#define _KSYS_H_

#ifdef __cplusplus

extern "C" {

#endif

#include 

#define asm_inline __asm__ __volatile__

#define KSYS_FS_ERR_SUCCESS 0  // Success

#define KSYS_FS_ERR_1       1  // Base and/or partition of a hard disk is not defined (fn21.7 & fn21.8)

#define KSYS_FS_ERR_2       2  // Function is not supported for the given file system

#define KSYS_FS_ERR_3       3  // Unknown file system

#define KSYS_FS_ERR_4       4  // Reserved, is never returned in the current implementation

#define KSYS_FS_ERR_5       5  // File not found

#define KSYS_FS_ERR_EOF     6  // End of file, EOF

#define KSYS_FS_ERR_7       7  // Pointer lies outside of application memory

#define KSYS_FS_ERR_8       8  // Disk is full

#define KSYS_FS_ERR_9       9  // FAT table is destroyed

#define KSYS_FS_ERR_10      10 // Access denied

#define KSYS_FS_ERR_11      11 // Device error

typedef void ksys_panic(char *func_name);

typedef struct {

    unsigned char blue;

    unsigned char green;

    unsigned char red;

}rgb_t;

#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 {

    unsigned attributes;

    unsigned name_cp;

    char creation_time[4];

    char creation_date[4];

    char last_access_time[4];

    char last_access_date[4];

    char last_modification_time[4];

    char last_modification_date[4];

    unsigned long long size;

    char name[0];

}ksys_bdfe_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;

typedef unsigned int ksys_color_t;

typedef struct{

    ksys_color_t frame_area;

    ksys_color_t grab_bar;

    ksys_color_t grab_bar_button;

    ksys_color_t grab_button_text;

    ksys_color_t grab_text;

    ksys_color_t work_area;

    ksys_color_t work_button;

    ksys_color_t work_button_text;

    ksys_color_t work_text;

    ksys_color_t work_graph;

}ksys_colors_table_t;

typedef struct{

    unsigned pid;      // PID of sending thread

    unsigned datalen;  // data bytes

    char     *data;    // data begin

}ksys_ipc_msg;

typedef struct{

    unsigned lock;              // nonzero is locked

    unsigned used;              // used bytes in buffer

    ksys_ipc_msg *data;         // data begin

}ksys_ipc_buffer;

typedef struct {

    char* func_name;

    void* func_ptr;

}ksys_coff_etable_t;

#pragma pack(pop)

enum KSYS_EVENTS {

    KSYS_EVENT_NONE = 0,     /* Event queue is empty */

    KSYS_EVENT_REDRAW = 1,   /* Window and window elements should be redrawn */

    KSYS_EVENT_KEY = 2,      /* A key on the keyboard was pressed */

    KSYS_EVENT_BUTTON = 3,   /* A button was clicked with the mouse */

    KSYS_EVENT_DESKTOP = 5,  /* Desktop redraw finished */

    KSYS_EVENT_MOUSE = 6,    /* Mouse activity (movement, button press) was detected */

    KSYS_EVENT_IPC = 7,      /* Interprocess communication notify */

    KSYS_EVENT_NETWORK = 8,  /* Network event */

    KSYS_EVENT_DEBUG = 9,    /* Debug subsystem event */

    KSYS_EVENT_IRQBEGIN = 16 /* 16..31 IRQ0..IRQ15 interrupt =IRQBEGIN+IRQn */

};

enum KSYS_FILE_ENCODING{

    KSYS_FILE_CP866 =1,

    KSYS_FILE_UTF16LE = 2,

    KSYS_FILE_UTF8 = 3

};

enum KSYS_CLIP_ENCODING{

    KSYS_CLIP_UTF8 = 0,

    KSYS_CLIP_CP866 = 1,

    KSYS_CLIP_CP1251 = 2

};

enum KSYS_CLIP_TYPES{

    KSYS_CLIP_TEXT = 0,

    KSYS_CLIP_IMAGE = 1,

    KSYS_CLIP_RAW = 2

};

enum KSYS_MOUSE_POS{

    KSYS_MOUSE_SCREEN_POS = 0,

    KSYS_MOUSE_WINDOW_POS = 1

};

enum KSYS_SHM_MODE{

    KSYS_SHM_OPEN = 0x00,

    KSYS_SHM_OPEN_ALWAYS = 0x04,

    KSYS_SHM_CREATE = 0x08,

    KSYS_SHM_READ = 0x00,

    KSYS_SHM_WRITE = 0x01,

};

static inline

int _ksys_strcmp(const char * s1, const char * s2 )

{

    while ((*s1) && (*s1 == *s2)){ ++s1; ++s2; }

    return(*(unsigned char*)s1 - *(unsigned char *)s2);

}

// Functions for working with the graphical interface

static inline

void _ksys_start_draw()

{

   asm_inline("int $0x40"::"a"(12),"b"(1));

}

static inline

void _ksys_end_draw()

{

    asm_inline("int $0x40" ::"a"(12),"b"(2));

}

static inline

void _ksys_create_window(int x, int y, int w, int h, const char *name, ksys_color_t workcolor, unsigned style)

{

    asm_inline(

        "int $0x40"

        ::"a"(0),

        "b"((x << 16) | ((w-1) & 0xFFFF)),

        "c"((y << 16) | ((h-1) & 0xFFFF)),

        "d"((style << 24) | (workcolor & 0xFFFFFF)),

        "D"(name),

        "S"(0)

        :"memory"

     );

};

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

void _ksys_define_button(unsigned x, unsigned y, unsigned w, unsigned h, unsigned id, ksys_color_t color)

{

   asm_inline(

        "int $0x40"

        ::"a"(8),

        "b"((x<<16)+w),

        "c"((y<<16)+h),

        "d"(id),

        "S"(color)

    );

};

static inline

void _ksys_draw_line(int xs, int ys, int xe, int ye, ksys_color_t color)

{

    asm_inline(

        "int $0x40"

        ::"a"(38), "d"(color),

        "b"((xs << 16) | xe),

        "c"((ys << 16) | ye)

    );

}

static inline

void _ksys_draw_bar(int x, int y, int w, int h, ksys_color_t color)

{

    asm_inline(

        "int $0x40"

        ::"a"(13), "d"(color),

        "b"((x << 16) | w),

        "c"((y << 16) | h)

    );

}

static inline

void _ksys_draw_bitmap(void *bitmap, int x, int y, int w, int h)

{

    asm_inline(

        "int $0x40"

        ::"a"(7), "b"(bitmap),

        "c"((w << 16) | h),

        "d"((x << 16) | y)

        :"memory"

    );

}

static inline

void _ksys_draw_text(const char *text, int x, int y, int len, ksys_color_t color)

{

   asm_inline(

        "int $0x40"

        ::"a"(4),"d"(text),

        "b"((x << 16) | y),

        "S"(len),"c"(color)

        :"memory"

    );

}

static inline

void _ksys_draw_text_bg(const char *text, int x, int y, int len, ksys_color_t color, ksys_color_t bg)

{

    asm_inline(

        "int $0x40"

        ::"a"(4),"d"(text),

        "b"((x << 16) | y),

        "S"(len),"c"(color), "D"(bg)

        :"memory"

    );

}

static inline

void _ksys_draw_number(int number, int x, int y, int len, ksys_color_t color){

    unsigned fmt;

    fmt = len << 16 | 0x80000000; // no leading zeros + width

    asm_inline(

        "int $0x40"

        ::"a"(47), "b"(fmt), "c"(number), "d"((x << 16) | y), "S"(color)

    );

}

static inline

void _ksys_draw_number_bg(unsigned number, int x, int y, int len, ksys_color_t color, ksys_color_t bg){

    unsigned fmt;

    fmt = len << 16 | 0x80000000; // no leading zeros + width

    asm_inline(

        "int $0x40"

        ::"a"(47), "b"(fmt), "c"(number), "d"((x << 16) | y), "S"(color), "D"(bg)

    );

}

static inline

unsigned _ksys_get_skin_height()

{

    unsigned height;

    asm_inline(

        "int $0x40 \n\t"

        :"=a"(height)

        :"a"(48),"b"(4)

    );

    return height;

}

static inline

void _ksys_get_colors(ksys_colors_table_t *color_table)

{

    asm_inline(

       "int $0x40"

        ::"a"(48),"b"(3),"c"(color_table),"d"(40)

    );

}

/* Functions for working with a screen. */

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)

    );

    size.x = size_tmp.y;

    size.y = size_tmp.x;

    return size;

}

/* Functions for working with a mouse and cursors. */

static inline

ksys_pos_t _ksys_get_mouse_pos(int origin)

{

    ksys_pos_t pos;

    asm_inline(

        "int $0x40 \n\t"

        "rol $16, %%eax"

        :"=a"(pos)

        :"a"(37),"b"(origin)

    );

    return pos;

}

static inline

unsigned _ksys_get_mouse_buttons()

{

    unsigned val;

    asm_inline(

        "int $0x40"

        :"=a"(val)

        :"a"(37),"b"(2)

    );

    return val;

}

static inline

unsigned _ksys_get_mouse_wheels()

{

    unsigned val;

    asm_inline(

        "int $0x40 \n\t"

        :"=a"(val)

        :"a"(37),"b"(7)

    );

    return val;

}

static inline

unsigned _ksys_load_cursor(void *path, unsigned flags)

{

    unsigned val;

    asm_inline(

        "int $0x40"

        :"=a"(val)

        :"a"(37), "b"(4), "c"(path), "d"(flags)

        :"memory"

    );

    return val;

}

static inline

unsigned _ksys_set_cursor(unsigned  cursor)

{

    unsigned old;

    asm_inline(

        "int $0x40"

        :"=a"(old)

        :"a"(37), "b"(5), "c"(cursor)

    );

    return old;

}

static inline

int _ksys_destroy_cursor(unsigned cursor)

{

    int ret;

    asm_inline(

        "int $0x40"

        :"=a"(ret)

        :"a"(37), "b"(6), "c"(cursor)

        :"memory"

    );

    return ret;

}

static inline

unsigned _ksys_get_mouse_eventstate()

{

    unsigned val;

    asm_inline(

        "int $0x40"

        :"=a"(val)

        :"a"(37),"b"(3)

    );

    return val;

}

/* Functions for working with events and buttons. */

static inline

unsigned _ksys_set_event_mask(unsigned mask)

{

    unsigned val;

    asm_inline(

        "int $0x40"

        :"=a"(val)

        :"a"(40), "b"(mask)

    );

    return val;

}

static inline

unsigned _ksys_wait_event(unsigned time)

{

    unsigned val;

    asm_inline(

        "int $0x40"

        :"=a"(val)

        :"a"(23), "b"(time)

    );

    return val;

}

static inline

unsigned _ksys_check_event()

{

    unsigned val;

    asm_inline(

        "int $0x40"

        :"=a"(val)

        :"a"(11)

    );

    return val;

}

static inline

unsigned _ksys_get_event()

{

    unsigned val;

    asm_inline(

        "int $0x40"

        :"=a"(val)

        :"a"(10)

    );

    return val;

}

static inline

unsigned _ksys_get_button()

{

    unsigned val;

    asm_inline(

        "int $0x40"

        :"=a"(val)

        :"a"(17)

    );

    return val>>8;

}

static inline

ksys_oskey_t _ksys_get_key(void)

{

    ksys_oskey_t val;

    asm_inline(

        "int $0x40"

        :"=a"(val)

        :"a"(2)

    );

    return val;

}

/* Functions for working with the clipboard */

static inline

int _ksys_clip_num()

{

    unsigned val;

    asm_inline(

        "int $0x40"

        :"=a"(val)

        :"a"(54), "b"(0)

    );

    return val;

}

static inline

char* _ksys_clip_get(int n) // returned buffer must be freed by _ksys_free()

{

    char* val;

    asm_inline(

        "int $0x40"

        :"=a"(val)

        :"a"(54), "b"(1), "c"(n)

    );

    return val;

}

static inline

int _ksys_clip_set(int n, char *buffer)

{

    unsigned val;

    asm_inline(

        "int $0x40"

        :"=a"(val)

        :"a"(54), "b"(2), "c"(n), "d"(buffer)

        :"memory"

    );

    return val;

}

static inline

int _ksys_clip_pop()

{

    unsigned val;

    asm_inline (

        "int $0x40"

        :"=a"(val)

        :"a"(54), "b"(3)

    );

    return val;

}

static inline

int _ksys_clip_unlock()

{

    unsigned val;

    asm_inline(

        "int $0x40"

        :"=a"(val)

        :"a"(54), "b"(4)

    );

    return val;

}

/* Working with time */

static inline

unsigned _ksys_get_tick_count()

{

    unsigned val;

    asm_inline(

        "int $0x40"

        :"=a"(val)

        :"a"(26),"b"(9)

    );

    return val;

}

static inline

uint64_t  _ksys_get_ns_count()

{

    uint64_t val;

    asm_inline(

        "int $0x40"

        :"=A"(val)

        :"a"(26), "b"(10)

    );

    return val;

}

static inline

void _ksys_delay(unsigned time)

{

    asm_inline(

        "int $0x40"

        ::"a"(5), "b"(time)

        :"memory"

    );

}

static inline

unsigned _ksys_get_date()

{

    unsigned val;

    asm_inline("int $0x40":"=a"(val):"a"(29));

    return val;

}

static inline

unsigned _ksys_get_clock()

{

    unsigned val;

    asm_inline("int $0x40":"=a"(val):"a"(3));

    return val;

}

/* Working with memory allocation */

static inline

void* _ksys_alloc(size_t size){

    void  *val;

    asm_inline(

        "int $0x40"

        :"=a"(val)

        :"a"(68),"b"(12),"c"(size)

    );

    return val;

}

static inline

int _ksys_free(void *mem)

{

    int val;

    asm_inline(

        "int $0x40"

        :"=a"(val)

        :"a"(68),"b"(13),"c"(mem)

    );

    return val;

}

static inline

void* _ksys_realloc(void *mem, size_t size)

{

    void *val;

    asm_inline(

        "int $0x40"

        :"=a"(val)

        :"a"(68),"b"(20),"c"(size),"d"(mem)

        :"memory"

    );

    return val;

}

static inline

int* _ksys_unmap(void *base, size_t offset, size_t size)

{

    int  *val;

    asm_inline(

        "int $0x40"

        :"=a"(val)

        :"a"(68),"b"(26),"c"(base),"d"(offset),"S"(size)

    );

    return val;

}

/* Loading the dynamic coff library */

static inline

ksys_coff_etable_t* _ksys_load_coff(const char* path)

{

    ksys_coff_etable_t *table;

    asm_inline(

        "int $0x40"

        :"=a"(table)

        :"a"(68),"b"(19), "c"(path)

        :"memory"

    );

    return table;

}

static inline

void* _ksys_get_coff_func(ksys_coff_etable_t *table, const char* fun_name, ksys_panic* panic)

{

    unsigned i=0;

    while (1){

        if (NULL == (table+i)->func_name){

            break;

        }else{

            if (!_ksys_strcmp(fun_name, (table+i)->func_name)){

                return (table+i)->func_ptr;

            }

        }

        i++;

    }

    panic((char*)fun_name);

    return NULL;

}

/* Debug board functions */

static inline

void _ksys_debug_putc(char c)

{

    asm_inline("int $0x40"::"a"(63), "b"(1), "c"(c));

}

static inline

void _ksys_debug_puts(char *s)

{

    unsigned i=0;

    while (*(s+i)){

        asm_inline ("int $0x40"::"a"(63), "b"(1), "c"(*(s+i)));

        i++;

    }

}

/* Working with threads and process */

static inline

int _ksys_start_thread(void* proc, char* stack_top)

{

    int val;

    asm_inline(

        "int $0x40"

        :"=a"(val)

        :"a"(51), "b"(1), "c"(proc), "d"(stack_top)

    );

    return val;

}

static inline

void _ksys_focus_window(int slot){

    asm_inline(

        "int $0x40"

        ::"a"(18), "b"(3), "c"(slot)

    );

}

static inline

int _ksys_get_thread_slot(int tid){

    int val;

    asm_inline(

        "int $0x40"

        :"=a"(val)

        :"a"(18), "b"(21), "c"(tid)

    );

    return val;

}

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_exit()

{

    asm_inline("int $0x40"::"a"(-1));

}

/* Working with files and directories */

static inline

void _ksys_setcwd(char* dir){

    asm_inline(

        "int $0x40"

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

    );

}

static inline

int _ksys_getcwd(char* buf, int bufsize){

    register int val;

    asm_inline(

        "int $0x40"

        :"=a"(val):"a"(30), "b"(2), "c"(buf), "d"(bufsize)

    );

    return val;

}

static inline

ksys_ufile_t _ksys_load_file(const char *path)

{

    ksys_ufile_t uf;

    asm_inline(

        "int $0x40"

        :"=a"(uf.data), "=d"(uf.size)

        :"a"(68), "b"(27),"c"(path)

        :"memory"

    );

    return uf;

}

static inline

ksys_ufile_t _ksys_load_file_enc(const char *path, unsigned file_encoding)

{

    ksys_ufile_t uf;

    asm_inline(

        "int $0x40"

        :"=a"(uf.data), "=d"(uf.size)

        :"a"(68), "b"(28),"c"(path), "d"(file_encoding)

        :"memory"

    );

    return uf;

}

static inline

int _ksys_work_files(const ksys70_t *k)

{

    int status;

    asm_inline(

        "int $0x40"

        :"=a"(status)

        :"a"(70), "b"(k)

        :"memory"

    );

    return status;

}

static inline

int _ksys_file_read_file(const char *name, unsigned long long offset, unsigned size, void *buf, unsigned *bytes_read)

{

    ksys70_t k;

    k.p00 = 0;

    k.p04 = offset;

    k.p12 = size;

    k.buf16 = buf;

    k.p20 = 0;

    k.p21 = name;

    int status;

    unsigned bytes_read_v;

    _ksys_work_files(&k);

    if (!status) {

        *bytes_read = bytes_read_v;

    }

    return status;

}

static inline

int _ksys_file_write_file(const char *name, unsigned long long offset, unsigned size, const void *buf, unsigned *bytes_written)

{

    ksys70_t k;

    k.p00 = 3;

    k.p04 = offset;

    k.p12 = size;

    k.cbuf16 = buf;

    k.p20 = 0;

    k.p21 = name;

    int status;

    unsigned bytes_written_v;

    asm_inline(

        "int $0x40"

        :"=a"(status), "=b"(bytes_written_v)

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

        :"memory"

    );

    if (!status) {

        *bytes_written = bytes_written_v;

    }

    return status;

}

static inline

int _ksys_file_create(const char* name){

    ksys70_t k;

    k.p00 = 2;

    k.p12 = 0;

    k.p21 = name;

    return _ksys_work_files(&k);

}

static inline

int _ksys_file_get_info(const char *name, ksys_bdfe_t *bdfe)

{

    ksys70_t k;

    k.p00 = 5;

    k.bdfe = bdfe;

    k.p20 = 0;

    k.p21 = name;

    return _ksys_work_files(&k);

}

static inline

int _ksys_file_delete(const char *name)

{

    ksys70_t k;

    k.p00 = 8;

    k.p20 = 0;

    k.p21 = name;

    return _ksys_work_files(&k);

}

static inline

int _ksys_file_rename(const char *name, const char *new_name)

{

    ksys70_t k;

    k.p00 = 10;

    k.new_name = new_name;

    k.p20 = 0;

    k.p21 = name;

    return _ksys_work_files(&k);

}

static inline

int _ksys_exec(char *app_name, char *args)

{

    ksys70_t file_opt;

    file_opt.p00 = 7;

    file_opt.p04dw = 0;

    file_opt.p08dw = (unsigned)args;

    file_opt.p21 = app_name;

    return _ksys_work_files(&file_opt);

}

static inline

int _ksys_mkdir(const char *path)

{

    ksys70_t dir_opt;

    dir_opt.p00 = 9;

    dir_opt.p21 = path;

    return _ksys_work_files(&dir_opt);

}

/* Working with a named shared memory area. */

static inline

int _ksys_shm_open(char *name, int mode, int size, char **new_shm)

{

    int error;

    asm_inline(

        "int $0x40"

        :"=a"(*new_shm), "=d"(error)

        :"a"(68), "b"(22), "c"(name), "d"(size), "S"(mode)

    );

    return error;

}

static inline

void _ksys_shm_close(char *shm_name)

{

    asm_inline(

        "int $0x40":

        :"a"(68), "b"(23), "c"(shm_name)

    );

}

#ifdef __cplusplus

}

#endif

#endif // _KSYS_H_