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Rational R1000/400

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⟦4a53318ed⟧ Ada Source

    Length: 5120 (0x1400)
    Types: Ada Source
    Notes: 03_class, FILE, R1k_Segment, e3_tag, package body Square, seg_02fa30, seg_0356f8, seg_038f6b

Derivation

└─⟦8527c1e9b⟧ Bits:30000544 8mm tape, Rational 1000, Arrival backup of disks in PAM's R1000
    └─ ⟦5a81ac88f⟧ »Space Info Vol 1« 
        └─⟦this⟧ 

E3 Source Code



with Square, Text_Io;
package body Square is

    procedure Move (D : Direction; Tab : in out Magic_Square) is

    begin
        case D is
            when North =>
                if Tab.Row = Tab.Table'First (2) then
                    Tab.Row := Tab.Table'Last (2);
                else
                    Tab.Row := Tab.Row - 1;
                end if;
            when West =>
                if Tab.Line = Tab.Table'First (1) then
                    Tab.Line := Tab.Table'Last (1);
                else
                    Tab.Line := Tab.Line - 1;
                end if;
            when East =>
                if Tab.Line = Tab.Table'Last (1) then
                    Tab.Line := Tab.Table'First (1);
                else
                    Tab.Line := Tab.Line + 1;
                end if;
        end case;
    end Move;



    procedure Display_Zero (Tab : in out Magic_Square) is
    begin  
        for R in Tab.Table'Range (2) loop
            for L in Tab.Table'Range (1) loop

                Tab.Table (L, R) := 0;

            end loop;
        end loop;
    end Display_Zero;


    procedure Walking (Tab : in out Magic_Square) is
        X : Natural;

    begin
        X := 1;
        Tab.Table (Tab.Line, Tab.Row) := X;
        X := X + 1;
        while not (X > (Tab.Dim ** 2)) loop

            Move (North, Tab);
            Move (East, Tab);
            if Tab.Table (Tab.Line, Tab.Row) = 0 then
                Tab.Table (Tab.Line, Tab.Row) := X;
            else
                Move (North, Tab);
                Move (West, Tab);
                Tab.Table (Tab.Line, Tab.Row) := X;

            end if;
            X := X + 1;

        end loop;

    end Walking;



    procedure Display (Tab : in out Magic_Square) is
        package Io is new Text_Io.Integer_Io (Integer);

    begin
        Display_Zero (Tab);
        Walking (Tab);

        for Row in Tab.Table'Range (2) loop
            for Line in Tab.Table'Range (1) loop
                Io.Put (Tab.Table (Line, Row));


            end loop;

            Text_Io.Put_Line ("");

        end loop;
    end Display;



end Square;

E3 Meta Data

    nblk1=4
    nid=3
    hdr6=6
        [0x00] rec0=22 rec1=00 rec2=01 rec3=04e
        [0x01] rec0=2c rec1=00 rec2=04 rec3=006
        [0x02] rec0=10 rec1=00 rec2=02 rec3=000
        [0x03] rec0=1c rec1=00 rec2=02 rec3=000
    tail 0x21528ca268491625729a5 0x42a00088462060003
Free Block Chain:
  0x3: 0000  00 00 00 04 80 01 69 01 02 03 04 63 65 64 75 72  ┆      i    cedur┆