module project (clk, rst, hex3, hex2, hex1, hex0, keys,sw, ledg, ledr);

input clk, rst;
input [9:0] sw;
input [4:0] keys;
output [9:0] ledr;
output [7:0] ledg;
output [6:0] hex3, hex2, hex1, hex0;
reg [9:0] stater;
reg [7:0] stateg;
reg [6:0] state3, state2, state1, state0, kat, val, gee, ralph, atemp, s1, s2,s3,s4, m1, m2,m3,m4, h1, h2;
reg [27:0] tempt, tempp, tempy, tempm, tempz, tempa, temps, tempc,tempw, temp, counter; // for initialization and display
reg tempc2, tempw2, tempst;
reg sw_not3, trig3, sw_not2, trig2, sw_not1, trig1, sw_not0, trig0;
reg temp7, military;

//default for each initialization
initial stater = 0;
initial stateg = 0;
initial tempt = 0;
initial tempp = 268435339;
initial tempy = 0;
initial tempm = 0;
initial tempz = 0;
initial tempa = 99;
initial temps = 9999;
initial h1 = 2;
initial h2 = 1;

//assignment
assign hex3 = state3;
assign hex2 = state2;
assign hex1 = state1;
assign hex0 = state0;
assign ledr = stater;
assign ledg = stateg;

//for 1 second
parameter hs = 25_000_000;
parameter s = 50_000_000;
parameter m = 3_000_000_000;
parameter h = 180_000_000_000;

always @ (posedge clk)
begin
sw_not3 <= ~keys[3]; trig3 <= sw_not3 & keys[3];
sw_not2 <= ~keys[2]; trig2 <= sw_not2 & keys[2];
sw_not1 <= ~keys[1]; trig1 <= sw_not1 & keys[1];
sw_not0 <= ~keys[0]; trig0 <= sw_not0 & keys[0];
end

always @(posedge clk)
begin
    if (sw[9] == 1)
        counter <= 0;
    else if (counter >= hs && sw[9] == 0)
        counter <= 0;
    else if (counter == s && sw[9] == 0)
        counter <= 0;
    else
        counter <= counter + 1;
end

always @(posedge clk)
begin
if (sw == 10'b1000000000)
    begin
        kat <= 127; val <= 127; gee <= 127; ralph <= 127;
        stateg <= 0; stater <= 0;
        tempt <= 0; tempp <= 268435339; tempy <= 0;
        tempm <= 0; tempz <= 0; tempa <= 99; temps <= 9999;
        h1 <= 2; h2 <= 1;
    end
//777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777777
else if (sw == 10'b0111000000) //for initial time
    begin
    kat <= tempt[27:21]; val <= tempt[20:14]; gee <= tempt[13:7]; ralph <= tempt[6:0];
    h2 <= temp[27:21]; h1 <= temp[20:14]; m2 <= tempt[13:7]; m1 <= tempt[6:0];
        if (tempt == 0)
        begin
            tempt[27:21] <= 1;
            tempt[20:14] <= 2;
            tempt[13:7] <= 0;
            tempt[6:0] <= 0;
            kat <= tempt[27:21]; val <= tempt[20:14]; gee <= tempt[13:7]; ralph <= tempt[6:0];
        end
        else if(trig2) //for hour 1-12
        begin
            tempt[20:14] <= tempt[20:14]+1;
            if(tempt[20:14] == 2 && tempt[27:21] == 1) //parang kat == 1 and val == 2 so bale 12
            begin
                tempt[27:21] <= 0;
                tempt[20:14] <= 1;
            end

            else if (tempt[20:14] == 9) //pag nakarating na si val ng 9, dapat mag add kay kat para maging tens ganun
                begin
                tempt[27:21] <= tempt[27:21]+1;
                tempt[20:14] <= 0;
                end
        end

            else if (tempp[6:0] == 10 && (tempt[27:21] != 1 && tempt[27:21] != 2)) //kapag PM plus 12
                begin
                    temp[27:21] <= tempt[27:21] + 1;
                    temp[20:14] <= tempt[27:21] + 2;
                end

            else if (trig1) // up minutes
            begin
                tempt[6:0] <= tempt[6:0]+1;

                if(tempt[13:7] == 5 && tempt[6:0] == 9) //gee == 5 and ralph == 9
                begin
                    tempt[6:0] <= 0;
                    tempt[13:7] <= 0;
                end

                else if(tempt[13:7] < 5 && tempt[6:0] == 9) // add lang kay gee pag di pa nakakaabot ng 59
                begin
                    tempt[6:0] <= 0;
                    tempt[13:7] <= tempt[13:7] + 1;
                end
            end
            else if (trig0 ) // down minutes
                begin
                tempt[6:0] <= tempt[6:0]-1;

                    if(tempt[13:7] == 0 && tempt[6:0] == 0)
                    begin
                        tempt[6:0] <= 9;
                        tempt[13:7] <= 5;
                    end

                    else if(tempt[13:7] > 0 && tempt[6:0] == 0)
                    begin
                        tempt[6:0] <= 9;
                        tempt[13:7] <= tempt[13:7] - 1;
                    end
                end
    end
//6666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666
else if (sw == 10'b0110000000) //set time period
    begin
        kat <= tempp[27:21]; val <= tempp[20:14]; gee <= tempp[13:7]; ralph <= tempp[6:0];
            if(trig3)
            begin
            if(tempp[6:0] == 10) //P to A
                begin
                    tempp[6:0] <= 11;
                    stater[9] <= 0;

                end
            else if (tempp[6:0] == 11) //A to P
                begin
                    tempp[6:0] <= 10;
                    stater[9] <= 1;
                end
            end

            else if (tempp == 268435339)
            begin
                tempp[27:21] <= 127;
                tempp[20:14] <= 127;
                tempp[13:7] <= 127;
                tempp[6:0] <= 11;
                kat <= tempp[27:21]; val <= tempp[20:14]; gee <= tempp[13:7]; ralph <= tempp[6:0];
            end
    end
//5555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555
else if (sw == 10'b0101000000) //set year
    begin
        kat <= tempy[27:21]; val <= tempy[20:14]; gee <= tempy[13:7]; ralph <= tempy[6:0];

            if (tempy == 0)
            begin
                tempy[27:21] <= 2;
                tempy[20:14] <= 0;
                tempy[13:7] <= 0;
                tempy[6:0] <= 0;
                kat <= tempy[27:21]; val <= tempy[20:14]; gee <= tempy[13:7]; ralph <= tempy[6:0];
            end

            else if(trig2)
            begin
                tempy[20:14] <= tempy[20:14] + 1;
                if (tempy[20:14] == 9)
                    tempy[20:14] <= 0;
            end

            else if(trig1)
            begin
                tempy[13:7] <= tempy[13:7] + 1;
                if (tempy[13:7] == 9)
                    tempy[13:7] <= 0;
            end

            else if (trig0)
            begin
                tempy[6:0] <= tempy[6:0] + 1;
                if (tempy[6:0] == 9)
                    tempy[6:0] <= 0;
            end
    end
//4444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444
else if (sw == 10'b0100000000) //set month and day
    begin
        kat <= tempm[27:21]; val <= tempm[20:14]; gee <= tempm[13:7]; ralph <= tempm[6:0];
            if (tempm == 0)
            begin
                tempm[27:21] <= 0;
                tempm[20:14] <= 1;
                tempm[13:7] <= 0;
                tempm[6:0] <= 1;
                kat <= tempm[27:21]; val <= tempm[20:14]; gee <= tempm[13:7]; ralph <= tempm[6:0];
            end

            else if(trig3) //up button for month
            begin
                tempm[20:14] <= tempm[20:14] + 1;
                if (tempm[20:14] == 9)
                    begin
                        tempm[27:21] <= 1;
                        tempm[20:14] <= 0;
                    end
                else if (tempm[20:14] == 2 && tempm[27:21] == 1)
                    begin
                        tempm[27:21] <= 0;
                        tempm[20:14] <= 1;
                    end
            end

            else if(trig2) //down button for month
            begin
                tempm[20:14] <= tempm[20:14] - 1;
                if (tempm[20:14] == 0 && tempm[27:21] > 0)
                    begin
                        tempm[20:14] <= 9;
                        tempm[27:21] <= 0;
                    end
                else if(tempm[20:14] == 1 && tempm[27:21] == 0)
                    begin
                        tempm[20:14] <= 2;
                        tempm[27:21] <= 1;
                    end
            end

        else if(trig1) //up day
            begin
                tempm[6:0] <= tempm[6:0] + 1;
                if (tempm[27:21] == 0 && tempm[20:14] == 2) //for february
                    begin
                        if(tempm[13:7] == 2 && tempm[6:0] == 9)
                            begin
                                tempm[13:7] <= 0;
                                tempm[6:0] <= 1;
                            end

                        else if (tempm[6:0] == 9)
                            begin
                                tempm[13:7] <= tempm[13:7] + 1;
                                tempm[6:0] <= 0;
                            end
                    end
                else if (tempm[13:7] == 3 && tempm[6:0] == 1) //for any month
                    begin
                        tempm[13:7] <= 0;
                        tempm[6:0] <= 1;
                    end
                else if (tempm[6:0] == 9)
                    begin
                        tempm[13:7] <= tempm[13:7] + 1;
                        tempm[6:0] <= 0;
                    end
            end
        else if (trig0) //down day

            begin
                tempm[6:0] <= tempm[6:0] - 1;
                if (tempm[27:21] == 0 && tempm[20:14] == 2) //for february
                    begin
                        if(tempm[13:7] == 0 && tempm[6:0] == 1)
                            begin
                                tempm[13:7] <= 2;
                                tempm[6:0] <= 9;
                            end

                        else if (tempm[6:0] == 0 && tempm[13:7] > 0)
                            begin
                                tempm[13:7] <= tempm[13:7] - 1;
                                tempm[6:0] <= 9;
                            end
                    end
                else if (tempm[13:7] == 0 && tempm[6:0] == 1) //for any month
                    begin
                        tempm[13:7] <= 3;
                        tempm[6:0] <= 1;
                    end
                else if (tempm[6:0] == 0 && tempm[13:7] > 0)
                    begin
                        tempm[13:7] <= tempm[13:7] - 1;
                        tempm[6:0] <= 9;
                    end
            end
    end
//3333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333
else if (sw == 10'b0011000000) //set time zone
    begin
        kat <= tempz[27:21]; val <= tempz[20:14]; gee <= tempz[13:7]; ralph <= tempz[6:0];
            if (tempz == 0)
            begin
                tempz[27:21] <= 127;
                tempz[20:14] <= 12;
                tempz[13:7] <= 12;
                tempz[6:0] <= 14;
                kat <= tempz[27:21]; val <= tempz[20:14]; gee <= tempz[13:7]; ralph <= tempz[6:0];
            end

            else if (trig3)
            begin
                tempz[20:14] <= tempz[20:14] +1;
                tempz[13:7] <= tempz[13:7] +1;
                tempz[6:0] <= tempz[6:0] +1;
                    if (tempz[20:14] == 14 && tempz[13:7] == 14 && tempz[6:0] == 16 )
                    begin
                        tempz[20:14] <= 10;
                        tempz[13:7] <= 10;
                        tempz[6:0] <= 12;
                    end
            end
    end
//22222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222
else if (sw == 10'b0010000000) //set alarm time
    begin
        kat <= tempa[27:21]; val <= tempa[20:14]; gee <= tempa[13:7]; ralph <= tempa[6:0];

            if (tempa == 99)
            begin
                tempa[27:21] <= 0;
                tempa[20:14] <= 0;
                tempa[13:7] <= 0;
                tempa[6:0] <= 0;
                kat <= tempa[27:21]; val <= tempa[20:14]; gee <= tempa[13:7]; ralph <= tempa[6:0];
            end

            else if (trig2) //for hour 00 to 23. So dapat may conversion pa ng 12hr to military time para gumana yung alarm
            begin
                tempa[20:14] <= tempa[20:14]+1;
                if(tempa[20:14] == 3 && tempa[27:21] == 2) //parang kat == 2 and val == 3 so bale 23
                begin
                    tempa[27:21] <= 0;
                    tempa[20:14] <= 0;
                end
                else if (tempa[20:14] == 9) //pag nakarating na si val ng 9, dapat mag add kay kat para maging tens ganun
                begin
                    tempa[27:21] <= tempa[27:21]+1;
                    tempa[20:14] <= 0;
                end
            end

            else if (trig1) // up minutes
            begin
                tempa[6:0] <= tempa[6:0]+1;
                if(tempa[13:7] == 5 && tempa[6:0] == 9) //gee == 5 and ralph == 9
                begin
                    tempa[6:0] <= 0;
                    tempa[13:7] <= 0;
                end
                else if(tempa[13:7] < 5 && tempa[6:0] == 9) // add lang kay gee pag di pa nakakaabot ng 59
                begin
                    tempa[6:0] <= 0;
                    tempa[13:7] <= tempa[13:7] + 1;
                end
            end

            else if (trig0) // down minutes
            begin
                tempa[6:0] <= tempa[6:0]-1;
                if(tempa[13:7] == 0 && tempa[6:0] == 0)
                begin
                    tempa[6:0] <= 9;
                    tempa[13:7] <= 5;
                end
                else if(tempa[13:7] > 0 && tempa[6:0] == 0)
                begin
                    tempa[6:0] <= 9;
                    tempa[13:7] <= tempa[13:7]-1;
                end
            end
    end
//11111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111
else if (sw == ) //set snooze time
    begin
        kat <= temps[27:21]; val <= temps[20:14]; gee <= temps[13:7]; ralph <= temps[6:0];
        s3 <= temps[6:0]; s4 <= temps[13:7]; m3 <= temps[20:14]; m4 <= temps[27:21];
            if (temps == 9999)
                begin
                    temps[27:21] <= 0;
                    temps[20:14] <= 5;
                    temps[13:7] <= 0;
                    temps[6:0] <= 0;
                    kat <= temps[27:21]; val <= temps[20:14]; gee <= temps[13:7]; ralph <= temps[6:0];
                end

            else if (trig3) //up button for minute
                begin
                    temps[20:14] <= temps[20:14]+1;
                    if (temps[20:14] == 9 && temps[27:21] == 9)
                    begin
                        temps[27:21] <= 0;
                        temps[20:14] <= 0;
                    end
                    else if (temps[20:14] == 9 && temps[27:21] < 9)
                    begin
                        temps[27:21] <= temps[27:21] + 1;
                        temps[20:14] <= 0;
                    end
                end

            else if (trig2) //down button for minute
                begin
                    temps[20:14] <= temps[20:14]-1;

                    if(temps[27:21] == 0 && temps[20:14] == 0)
                    begin
                        temps[20:14] <= 9;
                        temps[27:21] <= 9;
                    end

                    else if(temps[27:21] > 0 && temps[20:14] == 0)
                    begin
                        temps[20:14] <= 9;
                        temps[27:21] <= temps[27:21] - 1;
                    end
                end

            else if (trig1) //up seconds
                begin
                    temps[6:0] <= temps[6:0] + 1;
                    if (temps[13:7] == 5 && temps[6:0] == 9)
                    begin
                        temps[13:7] <= 0;
                        temps[6:0] <= 0;
                    end
                    else if (temps[6:0] == 9 && temps[13:7] < 5)
                    begin
                        temps[13:7] <= temps[13:7] + 1;
                        temps[6:0] <= 0;
                    end
                end

            else if (trig0) //down seconds
                begin
                    temps[6:0] <= temps[6:0]-1;

                    if(temps[13:7] == 0 && temps[6:0] == 0)
                    begin
                        temps[6:0] <= 9;
                        temps[13:7] <= 5;
                    end

                    else if(temps[13:7] > 0 && temps[6:0] == 0)
                    begin
                        temps[6:0] <= 9;
                        temps[13:7] <= temps[13:7] - 1;
                    end
                end
    end
//ssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssss
    else if (sw == 0 && counter == s) //display
    begin
//00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
     //time display
     case()
            begin
                kat <= h2;
                val <= h1;
                gee <= m2;
                ralph <= m1;
                if (!keys[3])
                begin
                    if (tempp == 10 && (h2 != 1 && h1 != 2)) //PM tapos >12
                        begin
                        val <= h1 - 2;
                        kat <= h2 - 1;
                        end
                    else if (tempp == 11 && (h2 == 0 && h1 == 0)) //AM tapos 00 sa military time
                        begin
                        kat <= 1;
                        val <= 2;
                        end
                    else
                        begin
                        kat <= h2;
                        val <= h1;
                        end
                gee <= m2;
                ralph <= m1;
                end

                else if (!keys[2])
                    begin
                    kat <= m2;
                    val <= m1;
                    gee <= s2;
                    ralph <= s1;
                    end

                else if (!keys[1])
                    begin
                    kat <= tempp[27:21];
                    val <= tempp[20:14];
                    gee <= tempp[13:7];
                    ralph <= tempp[6:0];
                    end
            end
    end
//(sw 1 and 0) are 1111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111
    else if (sw[1:0] == 1 && sw[9:2] == 0) // date display
        begin
            if (s1 < 9  && counter == s)
                s1 <= s1 + 1;
            else if (s1 == 9 && s2 < 5  && counter == s )
                begin
                s1 <= 0;
                s2 <= s2 + 1;
                end
            else if (s1 == 9 && s2 == 5 && m1 < 9  && counter == s)
                begin
                s1 <= 0;
                s2 <= 0;
                m1 <= m1 + 1;
                end
            else if (s1 == 9 && s2 == 5 && m1 == 9 && m2 < 5  && counter == s)
                begin
                s1 <= 0;
                s2 <= 0;
                m1 <= 0;
                m2 <= m2 + 1;
                end
            else if (s1 == 9 && s2 == 5 && m1 == 9 && m2 == 5 && h1 == 9 && h2 < 2  && counter == s)
                begin
                s1 <= 0;
                s2 <= 0;
                m1 <= 0;
                m2 <= 0;
                h1 <= 0;
                h2 <= h2 + 1;
                    if(tempp[6:0] == 11 && h1 == 2 && h2 == 1  && counter == s) //A to P
                        begin
                        tempp[6:0] <= 10;
                        stater[9] <= 1;
                        end
                end
            else if (s1 == 9 && s2 == 5 && m1 == 9 && m2 == 5 && h2 == 2 && h1 < 3  && counter == s)
                begin
                s1 <= 0;
                s2 <= 0;
                m1 <= 0;
                m2 <= 0;
                h1 <= h1 + 1;
                h2 <= 2;
                end
            else if (s1 == 9 && s2 == 5 && m1 == 9 && m2 == 5 && h2 == 2 && h1 == 3  && counter == s)
                begin
                s1 <= 0;
                s2 <= 0;
                m1 <= 0;
                m2 <= 0;
                h1 <= 0;
                h2 <= 0;
                    if(tempp[6:0] == 10) //P to A
                        begin
                        tempp[6:0] <= 11;
                        stater[9] <= 0;
                        end
                end
            else if (s1 == 9 && s2 == 5 && m1 == 9 && m2 == 5 && h1 < 9  && counter == s)
                begin
                s1 <= 0;
                s2 <= 0;
                m1 <= 0;
                m2 <= 0;
                h1 <= h1 + 1;
                end
            begin
                kat <= tempm[27:21];
                val <= tempm[20:14];
                gee <= tempm[13:7];
                ralph <= tempm[13:7];

                if (trig3)
                    begin
                        kat <= tempy[27:21];
                        val <= tempy[20:14];
                        gee <= tempy[13:7];
                        ralph <= tempy[6:0];
                    end
            end
        end
//(sw 1 and 0) are 222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222
    else if (sw[1:0] == 2 && sw[9:2] == 0) //world time display
        begin

        if (s1 < 9  && counter == s)
                s1 <= s1 + 1;
            else if (s1 == 9 && s2 < 5  && counter == s )
                begin
                s1 <= 0;
                s2 <= s2 + 1;
                end
            else if (s1 == 9 && s2 == 5 && m1 < 9  && counter == s)
                begin
                s1 <= 0;
                s2 <= 0;
                m1 <= m1 + 1;
                end
            else if (s1 == 9 && s2 == 5 && m1 == 9 && m2 < 5  && counter == s)
                begin
                s1 <= 0;
                s2 <= 0;
                m1 <= 0;
                m2 <= m2 + 1;
                end
            else if (s1 == 9 && s2 == 5 && m1 == 9 && m2 == 5 && h1 == 9 && h2 < 2  && counter == s)
                begin
                s1 <= 0;
                s2 <= 0;
                m1 <= 0;
                m2 <= 0;
                h1 <= 0;
                h2 <= h2 + 1;
                    if(tempp[6:0] == 11 && h1 == 2 && h2 == 1  && counter == s) //A to P
                        begin
                        tempp[6:0] <= 10;
                        stater[9] <= 1;
                        end
                end
            else if (s1 == 9 && s2 == 5 && m1 == 9 && m2 == 5 && h2 == 2 && h1 < 3  && counter == s)
                begin
                s1 <= 0;
                s2 <= 0;
                m1 <= 0;
                m2 <= 0;
                h1 <= h1 + 1;
                h2 <= 2;
                end
            else if (s1 == 9 && s2 == 5 && m1 == 9 && m2 == 5 && h2 == 2 && h1 == 3  && counter == s)
                begin
                s1 <= 0;
                s2 <= 0;
                m1 <= 0;
                m2 <= 0;
                h1 <= 0;
                h2 <= 0;
                    if(tempp[6:0] == 10) //P to A
                        begin
                        tempp[6:0] <= 11;
                        stater[9] <= 0;
                        end
                end
            else if (s1 == 9 && s2 == 5 && m1 == 9 && m2 == 5 && h1 < 9  && counter == s)
                begin
                s1 <= 0;
                s2 <= 0;
                m1 <= 0;
                m2 <= 0;
                h1 <= h1 + 1;
                end
                gee <= m2; ralph <= m1; //for display

        begin
        if (tempz[20:14] == 10 && tempz[13:7] == 10 && tempz[6:0] == 12 ) //timezone nyc
                begin
                    if ((h1+5) > 9)
                        begin
                            temp[20:14] <= (h1+5) % 10;
                            temp[27:21] <= h2 + 1;
                        end
                    else if (((h1+5)%10) == 4 && (h2+1) == 2)
                        begin
                            temp[27:21] <= 0;
                            temp[20:14] <= 0;
                        end
                    else if (h2 == 2 && h1 < 4)
                        begin
                            temp[27:21] <= 0;
                            temp[20:14] <= h1+1;
                        end
                    else
                        begin
                            temp[20:14] <= h1 + 5;
                            temp[27:21] <= h2;
                        end
                end
            else if (tempz[20:14] == 11 && tempz[13:7] == 11 && tempz[6:0] == 13 ) //timezone rio
                begin
                    if ((h1+3) > 9)
                        begin
                            temp[20:14] <= (h1+3) % 10;
                            temp[27:21] <= h2 + 1;
                        end
                    else if (((h1+3)%10) == 4 && (h2+1) == 2)
                        begin
                            temp[27:21] <= 0;
                            temp[20:14] <= 0;
                        end
                    else if (h2 == 2 && h1 < 4)
                        begin
                            temp[27:21] <= 0;
                            temp[20:14] <= h1+1;
                        end
                    else
                        begin
                            temp[20:14] <= h1 + 3;
                            temp[27:21] <= h2;
                        end
                end
            else if (tempz[20:14] == 12 && tempz[13:7] == 12 && tempz[6:0] == 13 ) //timezone lisbon
                begin
                    temp[20:14] <= h1;
                    temp[27:21] <= h2;
                end
            else if (tempz[20:14] == 14 && tempz[13:7] == 14 && tempz[6:0] == 15 ) //timezone sydney
                begin
                    if (h2 != 0)
                        begin
                            temp[20:14] <= h1;
                            temp[27:21] <= h2 - 1;
                        end
                    else if (h2 == 0 && (h1+3) > 9)
                        begin
                            temp[20:14] <= (h1 + 3)%10;
                            temp[27:21] <= h2;
                        end
                    else if (h2 == 0 && (h1+3) < 9)
                        begin
                            temp[20:14] <= h1 +3;
                            temp[27:21] <= h2;
                        end
                end
            else if (tempz[20:14] == 13 && tempz[13:7] == 13 && tempz[6:0] == 15 ) //PH
                begin
                    kat <= h2;
                    val <= h1;
                end
            else if (trig3) //ny time
                begin
                    if (temp[20:14] >= 5)
                    begin
                        if (temp[20:14] == 9 && temp[27:21] == 1)
                        begin
                            kat <= 0; val <= 0;
                        end
                        else
                        begin
                            kat <= temp[27:21]; val <= temp[20:14] -5;
                        end
                    end
                    else if (temp[20:14] < 5)
                    begin
                        if (temp[20:14] != 0 && temp[27:21] == 0 )
                        begin
                            kat <= 2;
                            val <= temp[20:14] - 1;
                        end
                        else
                        begin
                            kat <= temp[27:21] - 1;
                            val <= temp[20:14] + 5;
                        end
                    end
                end
            else if (trig2) // rio
                begin
                    if (temp[20:14] >= 3)
                    begin
                        kat <= temp[27:21];
                        val <= temp[20:14]-3;
                    end
                    else if (temp[20:14] < 3 && temp[27:21] != 0)
                    begin
                        kat <= temp[27:21] - 1;
                        val <= (temp[20:14]+3)%10;
                    end
                    else if (temp[20:14] < 3 && temp[27:21] == 0)
                    begin
                        kat <= temp[27:21] - 1;
                        val <= 2;
                    end
                end
            else if (trig1) //lisbo
                begin
                    kat <= temp[27:21];
                    val <= temp[20:14];
                end
            else if (trig0) // sydney
                begin
                    if (temp[27:21] == 1 && temp[20:14] >3)
                    begin
                        kat <= 0;
                        val <= temp[20:14] -4;
                    end
                    else if (temp[27:21] == 2 && temp [20:13] <= 3)
                    begin
                        kat <= 0;
                        val <= temp[20:14] + 6;
                    end
                    else
                    begin
                        kat <= temp[27:21] + 1;
                        val <= temp[20:14];
                    end
                end
            else if (!trig3 && !trig2 && !trig1 && !trig0)
                begin
                    if (temp[20:14] > 1)
                    begin
                        if (temp[20:14] > 5 && temp[27:21] == 1)
                        begin
                            kat <= 0;
                            val <= temp[20:14] -6;
                        end
                        else
                        begin
                            kat <= temp[27:21] +1;
                            val <= (temp[20:14] + 8)%10;
                        end
                    end
                    else if (temp[20:14] <= 1 && temp[27:21] != 2)
                    begin
                        kat <= temp[27:21];
                        val <= temp[20:14]+8;
                    end
                    else if (temp[27:21] == 2)
                    begin
                        kat <= 0;
                        val <= temp[20:14]+4;
                    end
                end
            end
        end
//(sw 3 and 2) are 1111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111
    else if (sw[3:2] == 1 && sw[1:0] >= 0 && sw[9:4] == 0) //alarm
        begin
            if (s1 < 9  && counter == s)
                s1 <= s1 + 1;
            else if (s1 == 9 && s2 < 5  && counter == s )
                begin
                s1 <= 0;
                s2 <= s2 + 1;
                end
            else if (s1 == 9 && s2 == 5 && m1 < 9  && counter == s)
                begin
                s1 <= 0;
                s2 <= 0;
                m1 <= m1 + 1;
                end
            else if (s1 == 9 && s2 == 5 && m1 == 9 && m2 < 5  && counter == s)
                begin
                s1 <= 0;
                s2 <= 0;
                m1 <= 0;
                m2 <= m2 + 1;
                end
            else if (s1 == 9 && s2 == 5 && m1 == 9 && m2 == 5 && h1 == 9 && h2 < 2  && counter == s)
                begin
                s1 <= 0;
                s2 <= 0;
                m1 <= 0;
                m2 <= 0;
                h1 <= 0;
                h2 <= h2 + 1;
                    if(tempp[6:0] == 11 && h1 == 2 && h2 == 1  && counter == s) //A to P
                        begin
                        tempp[6:0] <= 10;
                        stater[9] <= 1;
                        end
                end
            else if (s1 == 9 && s2 == 5 && m1 == 9 && m2 == 5 && h2 == 2 && h1 < 3  && counter == s)
                begin
                s1 <= 0;
                s2 <= 0;
                m1 <= 0;
                m2 <= 0;
                h1 <= h1 + 1;
                h2 <= 2;
                end
            else if (s1 == 9 && s2 == 5 && m1 == 9 && m2 == 5 && h2 == 2 && h1 == 3  && counter == s)
                begin
                s1 <= 0;
                s2 <= 0;
                m1 <= 0;
                m2 <= 0;
                h1 <= 0;
                h2 <= 0;
                    if(tempp[6:0] == 10) //P to A
                        begin
                        tempp[6:0] <= 11;
                        stater[9] <= 0;
                        end
                end
            else if (s1 == 9 && s2 == 5 && m1 == 9 && m2 == 5 && h1 < 9  && counter == s)
                begin
                s1 <= 0;
                s2 <= 0;
                m1 <= 0;
                m2 <= 0;
                h1 <= h1 + 1;
                end

            if(h2 == tempa[27:21] && h1 == tempa[20:14] && m2 == tempa[13:7] && m1 == tempa[6:0]) // alarm
                if (counter >= hs)
                    stateg <= ~stateg;
            else if (trig2) // stop alarm
                stateg <= 0;
            else if (trig1) //snooze time
                begin
                tempst <= 1;
                s3 <= temps[6:0]; s4 <= temps[13:7]; m3 <= temps[20:14]; m4 <= temps[27:21];
                end
            else if (tempst == 1)
            begin
                    if (s3 > 0  && counter == s)
                        s3 <= s3 - 1;
                    else if (s3 == 0 && s4 > 0  && counter == s)
                        begin
                        s3 <= 0;
                        s4 <= s4 - 1;
                        end
                    else if (s3 == 0 && s4 == 0 && m3 > 0  && counter == s)
                        begin
                        s3 <= 0;
                        s4 <= 0;
                        m3 <= m3 - 1;
                        end
                    else if (s3 == 0 && s4 == 0 && m3 == 0 && m4 > 0  && counter == s)
                        begin
                        s3 <= 0;
                        s4 <= 0;
                        m3 <= 0;
                        m4 <= m4 - 1;
                        end
                    else if (s3 == 0 && s4 == 0 && m3 == 0 && m4 == 0  && counter == s)
                        begin
                        stateg <= ~stateg;
                        end
                    else
                        stateg <= 0;

            end


        end
//sw[1:0] == 2222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222
        else if (sw[3:2] == 2 && sw[1:0] == 2 && sw[9:6] == 0) //countdown
            begin
                if (sw[4] == 1 && sw[5] == 0)
                begin
                    kat <= tempc[27:21]; val <= tempc[20:14]; gee <= tempc[13:7]; ralph <= tempc[6:0];
                        if(trig3) //up minute
                        begin
                            tempc[20:14] <= tempc[20:14]+1;

                            if(tempc[20:14] == 9 && tempc[27:21] == 9)
                            begin
                                tempc[20:14] <= 0;
                                tempc[27:21] <= 0;
                            end

                            else if(tempc[27:21] < 9 && tempc[20:14] == 9)
                            begin
                                tempc[20:14] <= 0;
                                tempc[27:21] <= tempc[27:21] + 1;
                            end
                        end

                        else if(trig2) //down minute
                        begin
                            tempc[20:14] <= tempc[20:14]-1;

                            if(tempc[20:14] == 0 && tempc[27:21] == 0)
                            begin
                                tempc[20:14] <= 9;
                                tempc[27:21] <= 9;
                            end

                            else if(tempc[27:21] > 0 && tempc[20:14] == 0)
                            begin
                                tempc[20:14] <= 9;
                                tempc[27:21] <= gee - 1;
                            end
                        end

                        else if (trig1) // up seconds
                        begin
                            tempc[6:0] <= tempc[6:0]+1;

                            if(tempc[6:0] == 9 && tempc[13:7] == 5)
                            begin
                                tempc[6:0] <= 0;
                                tempc[13:7] <= 0;
                            end

                            else if(tempc[13:7] < 5 && tempc[6:0] == 9)
                            begin
                                tempc[6:0] <= 0;
                                tempc[13:7] <= tempc[13:7] + 1;
                            end

                        end
                        else if (trig0) // down seconds
                        begin
                            tempc[6:0] <= tempc[6:0]-1;

                            if(tempc[13:7] == 0 && tempc[6:0] == 0)
                            begin
                                tempc[6:0] <= 9;
                                tempc[13:7] <= 5;
                            end

                            else if(tempc[13:7] > 0 && tempc[6:0] == 0)
                            begin
                                tempc[6:0] <= 9;
                                tempc[13:7] <= tempc[13:7] - 1;
                            end
                        end
                end

                else if (sw[4] == 0 && sw[5] == 1)
                begin
                    if (tempc2 == 0 )
                    begin
                        if (ralph > 0 && counter == s)
                            ralph <= ralph - 1;
                        else if (ralph == 0 && gee > 0 && counter == s)
                            begin
                            ralph <= 9;
                            gee <= gee - 1;
                            end
                        else if (ralph == 0 && gee == 0 && val > 0 && counter == s)
                            begin
                            ralph <= 9;
                            gee <= 5;
                            val <= val - 1;
                            end
                        else if (ralph == 0 && gee == 0 && val == 0 && kat > 0 && counter == s)
                            begin
                            ralph <= 0;
                            gee <= 0;
                            val <= 0;
                            kat <= kat - 1;
                            end
                        else if (ralph == 0 && gee == 0 && val == 0 && kat == 0 && counter == s)
                            begin
                            ralph <= 0;
                            gee <= 0;
                            val <= 0;
                            kat <= 0;
                            end
                    end
                    else if (trig3 && tempc2 == 0)
                        tempc2 <= 1;
                    else if (trig3 && tempc2 == 1)
                        tempc2 <= 0;
                    else if (trig0)
                        begin
                            ralph <= tempc[6:0];
                            gee <= tempc[13:7];
                            val <= tempc[20:14];
                            kat <= tempc[27:21];
                        end
                    else if (tempc2 == 1)
                        begin
                            ralph <= ralph;
                            gee <= gee;
                            val <= val;
                            kat <= kat;
                        end

                end
            end
//sw[3:2] - 33333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333
        else if (sw[3:2] == 3 && sw[1:0] == 2 && sw[9:6] == 0 && sw[4] == 0) //stopwatch
            begin
                if (sw[5] == 0)
                begin
                    kat <= 0; val <= 0; gee <= 0; ralph <= 0;
                end
                if (sw[5] == 1)
                begin
                    if (tempw == 0)
                    begin
                        if (ralph < 9 && counter == s)
                            ralph <= ralph + 1;
                        else if (ralph == 9 && gee < 5 && counter == s)
                            begin
                            ralph <= 0;
                            gee <= gee + 1;
                            end
                        else if (ralph == 9 && gee == 5 && val < 9 && counter == s)
                            begin
                            ralph <= 0;
                            gee <= 0;
                            val <= val + 1;
                            end
                        else if (ralph == 9 && gee == 5 && val == 9 && kat < 9 && counter == s)
                            begin
                            ralph <= 0;
                            gee <= 0;
                            val <= 0;
                            kat <= kat + 1;
                            end
                        else if (ralph == 9 && gee == 5 && val == 9 && kat == 9 && counter == s)
                            begin
                            ralph <= 9;
                            gee <= 5;
                            val <= 9;
                            kat <= 9;
                            end
                    end
                    else if (trig3 && tempw == 0)
                        tempw <= 1;
                    else if (trig3 && tempw == 1)
                        tempw <= 0;
                    else if (trig0)
                        begin
                            ralph <= 0;
                            gee <= 0;
                            val <= 0;
                            kat <= 0;
                        end
                    else if (tempw == 1)
                        begin
                            ralph <= ralph;
                            gee <= gee;
                            val <= val;
                            kat <= kat;
                        end

                end
            end

case (kat)
0:state3 <= 1;
1:state3 <= 79;
2:state3 <= 18;
3:state3 <= 6;
4:state3 <= 76;
5:state3 <= 36;
6:state3 <= 32;
7:state3 <= 13;
8:state3 <= 0;
9:state3 <= 4;
127:state3 <= 127;
endcase
case (val)
0:state2 <= 1;
1:state2 <= 79;
2:state2 <= 18;
3:state2 <= 6;
4:state2 <= 76;
5:state2 <= 36;
6:state2 <= 32;
7:state2 <= 13;
8:state2 <= 0;
9:state2 <= 4;
10:state2 <= 7'b0001001; //n
11:state2 <= 7'b0111001; //r
12:state2 <= 7'b1110001; //L
13:state2 <= 7'b0011000; //P
14:state2 <= 7'b0100100; //S
127:state2 <= 127;
endcase
case (gee)
0:state1 <= 1;
1:state1 <= 79;
2:state1 <= 18;
3:state1 <= 6;
4:state1 <= 76;
5:state1 <= 36;
6:state1 <= 32;
7:state1 <= 13;
8:state1 <= 0;
9:state1 <= 4;
10:state1 <= 7'b1000100; //Y
11:state1 <= 79; //I
12:state1 <= 79; //I
13:state1 <= 7'b1001000; //H
14:state1 <= 7'b1000100; //Y
127:state1 <= 127;
endcase
case (ralph)
0:state0 <= 1;
1:state0 <= 79;
2:state0 <= 18;
3:state0 <= 6;
4:state0 <= 76;
5:state0 <= 36;
6:state0 <= 32;
7:state0 <= 13;
8:state0 <= 0;
9:state0 <= 4;
10:state0 <= 7'b0011000; //P
11:state0 <= 7'b0001000; //A
12:state0 <= 7'b0110001; //C
13:state0 <= 1; //O
14:state0 <= 7'b0100100; //S
15:state0 <= 7'b1110001; //L
16:state0 <= 7'b1000010; //d
127:state0 <= 127;
endcase
    end
end

always @(posedge clk)
begin
    if (sw[9] == 1)
        counter <= 0;
    else if (counter >= hs && sw[9] == 0)
        counter <= 0;
    else if (counter == s && sw[9] == 0)
        counter <= 0;
    else
        counter <= counter + 1;
end

endmodule