Subversion Repositories Kolibri OS

(*

    BSD 2-Clause License

    Copyright (c) 2018-2022, Anton Krotov

    All rights reserved.

*)

MODULE HOST;

IMPORT SYSTEM, K := KOSAPI, API;

CONST

    slash* = "/";

    eol* = 0DX + 0AX;

    bit_depth* = API.BIT_DEPTH;

    maxint* = ROR(-2, 1);

    minint* = ROR(1, 1);

    MAX_PARAM = 1024;

TYPE

    DAYS = ARRAY 12, 31, 2 OF INTEGER;

    FNAME = ARRAY 520 OF CHAR;

    FS = POINTER TO rFS;

    rFS = RECORD

        subfunc, pos, hpos, bytes, buffer: INTEGER;

        name: FNAME

    END;

    FD = POINTER TO rFD;

    rFD = RECORD

        attr: INTEGER;

        ntyp: CHAR;

        reserved: ARRAY 3 OF CHAR;

        time_create, date_create,

        time_access, date_access,

        time_modif,  date_modif,

        size, hsize: INTEGER;

        name: FNAME

    END;

VAR

    Console: BOOLEAN;

    days: DAYS;

    Params: ARRAY MAX_PARAM, 2 OF INTEGER;

    argc*: INTEGER;

    maxreal*, inf*: REAL;

PROCEDURE [stdcall, "Console.obj", "con_init"] con_init (wnd_width, wnd_height, scr_width, scr_height, title: INTEGER);

PROCEDURE [stdcall, "Console.obj", "con_exit"] con_exit (bCloseWindow: BOOLEAN);

PROCEDURE [stdcall, "Console.obj", "con_write_string"] con_write_string (string, length: INTEGER);

PROCEDURE ExitProcess* (p1: INTEGER);

BEGIN

    IF Console THEN

        con_exit(FALSE)

    END;

    K.sysfunc1(-1)

END ExitProcess;

PROCEDURE OutChar* (c: CHAR);

BEGIN

    IF Console THEN

        con_write_string(SYSTEM.ADR(c), 1)

    ELSE

        K.sysfunc3(63, 1, ORD(c))

    END

END OutChar;

PROCEDURE GetFileInfo (FName: ARRAY OF CHAR; VAR Info: rFD): BOOLEAN;

VAR

    res2: INTEGER;

    fs:   rFS;

BEGIN

    fs.subfunc := 5;

    fs.pos := 0;

    fs.hpos := 0;

    fs.bytes := 0;

    fs.buffer := SYSTEM.ADR(Info);

    COPY(FName, fs.name)

    RETURN K.sysfunc22(70, SYSTEM.ADR(fs), res2) = 0

END GetFileInfo;

PROCEDURE Exists (FName: ARRAY OF CHAR): BOOLEAN;

VAR

    fd: rFD;

BEGIN

    RETURN GetFileInfo(FName, fd) & ~(4 IN BITS(fd.attr))

END Exists;

PROCEDURE Close (VAR F: FS);

BEGIN

    IF F # NIL THEN

        DISPOSE(F)

    END

END Close;

PROCEDURE Open (FName: ARRAY OF CHAR): FS;

VAR

    F: FS;

BEGIN

    IF Exists(FName) THEN

        NEW(F);

        IF F # NIL THEN

            F.subfunc := 0;

            F.pos := 0;

            F.hpos := 0;

            F.bytes := 0;

            F.buffer := 0;

            COPY(FName, F.name)

        END

    ELSE

        F := NIL

    END

    RETURN F

END Open;

PROCEDURE Read (F: FS; Buffer, Count: INTEGER): INTEGER;

VAR

    res, res2: INTEGER;

BEGIN

    IF F # NIL THEN

        F.subfunc := 0;

        F.bytes := Count;

        F.buffer := Buffer;

        res := K.sysfunc22(70, SYSTEM.ADR(F^), res2);

        IF res2 > 0 THEN

            F.pos := F.pos + res2

        END

    ELSE

        res2 := 0

    END

    RETURN res2

END Read;

PROCEDURE Write (F: FS; Buffer, Count: INTEGER): INTEGER;

VAR

    res, res2: INTEGER;

BEGIN

    IF F # NIL THEN

        F.subfunc := 3;

        F.bytes := Count;

        F.buffer := Buffer;

        res := K.sysfunc22(70, SYSTEM.ADR(F^), res2);

        IF res2 > 0 THEN

            F.pos := F.pos + res2

        END

    ELSE

        res2 := 0

    END

    RETURN res2

END Write;

PROCEDURE Create (FName: ARRAY OF CHAR): FS;

VAR

    F:    FS;

    res2: INTEGER;

BEGIN

    NEW(F);

    IF F # NIL THEN

        F.subfunc := 2;

        F.pos := 0;

        F.hpos := 0;

        F.bytes := 0;

        F.buffer := 0;

        COPY(FName, F.name);

        IF K.sysfunc22(70, SYSTEM.ADR(F^), res2) # 0 THEN

            DISPOSE(F)

        END

    END

    RETURN F

END Create;

PROCEDURE FileRead* (F: INTEGER; VAR Buffer: ARRAY OF CHAR; bytes: INTEGER): INTEGER;

VAR

    n: INTEGER;

    fs: FS;

BEGIN

    SYSTEM.GET(SYSTEM.ADR(F), fs);

    n := Read(fs, SYSTEM.ADR(Buffer[0]), bytes);

    IF n = 0 THEN

        n := -1

    END

    RETURN n

END FileRead;

PROCEDURE FileWrite* (F: INTEGER; Buffer: ARRAY OF BYTE; bytes: INTEGER): INTEGER;

VAR

    n: INTEGER;

    fs: FS;

BEGIN

    SYSTEM.GET(SYSTEM.ADR(F), fs);

    n := Write(fs, SYSTEM.ADR(Buffer[0]), bytes);

    IF n = 0 THEN

        n := -1

    END

    RETURN n

END FileWrite;

PROCEDURE FileCreate* (FName: ARRAY OF CHAR): INTEGER;

VAR

    fs: FS;

    res: INTEGER;

BEGIN

    fs := Create(FName);

    SYSTEM.GET(SYSTEM.ADR(fs), res)

    RETURN res

END FileCreate;

PROCEDURE FileClose* (F: INTEGER);

VAR

    fs: FS;

BEGIN

    SYSTEM.GET(SYSTEM.ADR(F), fs);

    Close(fs)

END FileClose;

PROCEDURE FileOpen* (FName: ARRAY OF CHAR): INTEGER;

VAR

    fs: FS;

    res: INTEGER;

BEGIN

    fs := Open(FName);

    SYSTEM.GET(SYSTEM.ADR(fs), res)

    RETURN res

END FileOpen;

PROCEDURE chmod* (FName: ARRAY OF CHAR);

END chmod;

PROCEDURE GetTickCount* (): INTEGER;

    RETURN K.sysfunc2(26, 9)

END GetTickCount;

PROCEDURE AppAdr (): INTEGER;

VAR

    buf: ARRAY 1024 OF CHAR;

    a: INTEGER;

BEGIN

    a := K.sysfunc3(9, SYSTEM.ADR(buf), -1);

    SYSTEM.GET(SYSTEM.ADR(buf) + 22, a)

    RETURN a

END AppAdr;

PROCEDURE GetCommandLine (): INTEGER;

VAR

    param: INTEGER;

BEGIN

    SYSTEM.GET(28 + AppAdr(), param)

    RETURN param

END GetCommandLine;

PROCEDURE GetName (): INTEGER;

VAR

    name: INTEGER;

BEGIN

    SYSTEM.GET(32 + AppAdr(), name)

    RETURN name

END GetName;

PROCEDURE GetChar (adr: INTEGER): CHAR;

VAR

    res: CHAR;

BEGIN

    SYSTEM.GET(adr, res)

    RETURN res

END GetChar;

PROCEDURE ParamParse;

VAR

    p, count, name, cond: INTEGER;

    c: CHAR;

    PROCEDURE ChangeCond (A, B, C: INTEGER; c: CHAR; VAR cond: INTEGER);

    BEGIN

        IF (c <= 20X) & (c # 0X) THEN

            cond := A

        ELSIF c = 22X THEN

            cond := B

        ELSIF c = 0X THEN

            cond := 6

        ELSE

            cond := C

        END

    END ChangeCond;

BEGIN

    p := GetCommandLine();

    name := GetName();

    Params[0, 0] := name;

    WHILE GetChar(name) # 0X DO

        INC(name)

    END;

    Params[0, 1] := name - 1;

    cond := 0;

    count := 1;

    WHILE (argc < MAX_PARAM) & (cond # 6) DO

        c := GetChar(p);

        CASE cond OF

        |0: ChangeCond(0, 4, 1, c, cond); IF cond = 1 THEN Params[count, 0] := p END

        |1: ChangeCond(0, 3, 1, c, cond); IF cond IN {0, 6} THEN Params[count, 1] := p - 1; INC(count) END

        |3: ChangeCond(3, 1, 3, c, cond); IF cond = 6 THEN Params[count, 1] := p - 1; INC(count) END

        |4: ChangeCond(5, 0, 5, c, cond); IF cond = 5 THEN Params[count, 0] := p END

        |5: ChangeCond(5, 1, 5, c, cond); IF cond = 6 THEN Params[count, 1] := p - 1; INC(count) END

        |6:

        END;

        INC(p)

    END;

    argc := count

END ParamParse;

PROCEDURE GetArg* (n: INTEGER; VAR s: ARRAY OF CHAR);

VAR

    i, j, len: INTEGER;

    c: CHAR;

BEGIN

    j := 0;

    IF n < argc THEN

        len := LEN(s) - 1;

        i := Params[n, 0];

        WHILE (j < len) & (i <= Params[n, 1]) DO

            c := GetChar(i);

            IF c # 22X THEN

                s[j] := c;

                INC(j)

            END;

            INC(i)

        END

    END;

    s[j] := 0X

END GetArg;

PROCEDURE GetCurrentDirectory* (VAR path: ARRAY OF CHAR);

VAR

    n: INTEGER;

BEGIN

    n := K.sysfunc4(30, 2, SYSTEM.ADR(path[0]), LEN(path) - 2);

    path[n - 1] := slash;

    path[n] := 0X

END GetCurrentDirectory;

PROCEDURE isRelative* (path: ARRAY OF CHAR): BOOLEAN;

    RETURN path[0] # slash

END isRelative;

PROCEDURE UnixTime* (): INTEGER;

VAR

    date, time, year, month, day, hour, min, sec: INTEGER;

BEGIN

    date  := K.sysfunc1(29);

    time  := K.sysfunc1(3);

    year  := date MOD 16;

    date  := date DIV 16;

    year  := (date MOD 16) * 10 + year;

    date  := date DIV 16;

    month := date MOD 16;

    date  := date DIV 16;

    month := (date MOD 16) * 10 + month;

    date  := date DIV 16;

    day   := date MOD 16;

    date  := date DIV 16;

    day   := (date MOD 16) * 10 + day;

    date  := date DIV 16;

    hour  := time MOD 16;

    time  := time DIV 16;

    hour  := (time MOD 16) * 10 + hour;

    time  := time DIV 16;

    min   := time MOD 16;

    time  := time DIV 16;

    min   := (time MOD 16) * 10 + min;

    time  := time DIV 16;

    sec   := time MOD 16;

    time  := time DIV 16;

    sec   := (time MOD 16) * 10 + sec;

    time  := time DIV 16;

    INC(year, 2000)

    RETURN ((year - 1970) * 365 + days[month - 1, day - 1, ORD(year DIV 4 = 0)] + (year - 1969) DIV 4) * 86400 + hour * 3600 + min * 60 + sec

END UnixTime;

PROCEDURE splitf* (x: REAL; VAR a, b: INTEGER): INTEGER;

BEGIN

    SYSTEM.GET32(SYSTEM.ADR(x), a);

    SYSTEM.GET32(SYSTEM.ADR(x) + 4, b)

    RETURN a

END splitf;

PROCEDURE d2s* (x: REAL): INTEGER;

VAR

    h, l, s, e: INTEGER;

BEGIN

    e := splitf(x, l, h);

    s := ASR(h, 31) MOD 2;

    e := (h DIV 100000H) MOD 2048;

    IF e <= 896 THEN

        h := (h MOD 100000H) * 8 + (l DIV 20000000H) MOD 8 + 800000H;

        REPEAT

            h := h DIV 2;

            INC(e)

        UNTIL e = 897;

        e := 896;

        l := (h MOD 8) * 20000000H;

        h := h DIV 8

    ELSIF (1151 <= e) & (e < 2047) THEN

        e := 1151;

        h := 0;

        l := 0

    ELSIF e = 2047 THEN

        e := 1151;

        IF (h MOD 100000H # 0) OR (BITS(l) * {0..31} # {}) THEN

            h := 80000H;

            l := 0

        END

    END;

    DEC(e, 896)

    RETURN LSL(s, 31) + LSL(e, 23) + (h MOD 100000H) * 8 + (l DIV 20000000H) MOD 8

END d2s;

PROCEDURE init (VAR days: DAYS);

VAR

    i, j, n0, n1: INTEGER;

BEGIN

    FOR i := 0 TO 11 DO

        FOR j := 0 TO 30 DO

            days[i, j, 0] := 0;

            days[i, j, 1] := 0;

        END

    END;

    days[ 1, 28, 0] := -1;

    FOR i := 0 TO 1 DO

        days[ 1, 29, i] := -1;

        days[ 1, 30, i] := -1;

        days[ 3, 30, i] := -1;

        days[ 5, 30, i] := -1;

        days[ 8, 30, i] := -1;

        days[10, 30, i] := -1;

    END;

    n0 := 0;

    n1 := 0;

    FOR i := 0 TO 11 DO

        FOR j := 0 TO 30 DO

            IF days[i, j, 0] = 0 THEN

                days[i, j, 0] := n0;

                INC(n0)

            END;

            IF days[i, j, 1] = 0 THEN

                days[i, j, 1] := n1;

                INC(n1)

            END

        END

    END;

    inf := SYSTEM.INF();

    maxreal := 1.9;

    PACK(maxreal, 1023);

    Console := TRUE;

    IF Console THEN

        con_init(-1, -1, -1, -1, SYSTEM.SADR("Oberon-07 for KolibriOS"))

    END;

    ParamParse

END init;

BEGIN

    init(days)

END HOST.