module top_module (
	input [99:0] a,
	input [99:0] b,
	input sel,
	output [99:0] out
);
	assign out = sel ? b : a;
endmodule

module top_module (
	input [99:0] a,
	input [99:0] b,
	input sel,
	output [99:0] out
);

	assign out = (sel == 1'b0) ? a : b;

endmodule


module top_module(
    input [3:1] y,
    input w,
    output reg Y2
);

always @(*) begin
    case (y)
        3'b000: Y2 = 0; // State A
        3'b001: Y2 = 0; // State B
        3'b010: Y2 = 0; // State C
        3'b011: Y2 = 0; // State D
        3'b100: Y2 = 1; // State E
        3'b101: Y2 = 1; // State F
        default: Y2 = 0; // Default case
    endcase
end

endmodule

module top_module(
    input [3:1] y,
    input w,
    output reg Y2);

always @(*) begin
    case (y)
        3'b000: Y2 = (w == 0) ? 0 : 0; // State A
        3'b001: Y2 = (w == 0) ? 0 : 0; // State B
        3'b010: Y2 = (w == 0) ? 0 : 0; // State C
        3'b011: Y2 = (w == 0) ? 0 : 0; // State D
        3'b100: Y2 = (w == 0) ? 1 : 0; // State E
        3'b101: Y2 = (w == 0) ? 1 : 0; // State F
        default: Y2 = 0;               // Undefined state
    endcase
end

endmodule

module top_module(
    input [3:1] y,
    input w,
    output reg Y2);

    always @(*) begin
        case (y)
            3'b000: Y2 = (w) ? 0 : 0; // State A
            3'b001: Y2 = (w) ? 1 : 0; // State B
            3'b010: Y2 = (w) ? 1 : 0; // State C
            3'b011: Y2 = (w) ? 1 : 0; // State D
            3'b100: Y2 = (w) ? 1 : 1; // State E
            3'b101: Y2 = (w) ? 1 : 0; // State F
            default: Y2 = 0; // Default case
        endcase
    end
endmodule

module top_module(
	input [3:1] y,
	input w,
	output reg Y2);

	always @* begin
		case (y)
			3'b000: Y2 = (w) ? 1'b0 : 1'b0; // State A
			3'b001: Y2 = (w) ? 1'b1 : 1'b0; // State B
			3'b010: Y2 = (w) ? 1'b1 : 1'b0; // State C
			3'b011: Y2 = (w) ? 1'b1 : 1'b0; // State D
			3'b100: Y2 = (w) ? 1'b1 : 1'b1; // State E
			3'b101: Y2 = (w) ? 1'b1 : 1'b0; // State F
			default: Y2 = 1'b0; // Default case
		endcase
	end
endmodule

module top_module(
	input [3:1] y,
	input w,
	output reg Y2);

	always @(*) begin
		case (y)
			3'b000: Y2 = (w == 0) ? 0 : 0; // State A
			3'b001: Y2 = (w == 0) ? 0 : 1; // State B
			3'b010: Y2 = (w == 0) ? 1 : 1; // State C
			3'b011: Y2 = (w == 0) ? 1 : 0; // State D
			3'b100: Y2 = (w == 0) ? 1 : 0; // State E
			3'b101: Y2 = (w == 0) ? 0 : 0; // State F
			default: Y2 = 0; // Default case
		endcase
	end
endmodule

module top_module(
	input [3:1] y,
	input w,
	output reg Y2);

always @(*) begin
	case (y)
		3'b000: Y2 = 0; // State A
		3'b001: Y2 = (w == 1) ? 0 : 0; // State B
		3'b010: Y2 = (w == 1) ? 1 : 0; // State C
		3'b011: Y2 = (w == 1) ? 0 : 0; // State D
		3'b100: Y2 = 1; // State E
		3'b101: Y2 = (w == 1) ? 1 : 0; // State F
		default: Y2 = 0;
	endcase
end

endmodule

module top_module(
    input [3:1] y,
    input w,
    output reg Y2
);
    always @(*) begin
        case (y)
            3'b000: Y2 = (w == 0) ? 0 : 0; // State A
            3'b001: Y2 = (w == 0) ? 0 : 1; // State B
            3'b010: Y2 = (w == 0) ? 1 : 1; // State C
            3'b011: Y2 = (w == 0) ? 0 : 1; // State D
            3'b100: Y2 = (w == 0) ? 1 : 1; // State E
            3'b101: Y2 = (w == 0) ? 0 : 1; // State F
            default: Y2 = 0; // Default case
        endcase
    end
endmodule

module top_module(
    input [3:1] y,
    input w,
    output reg Y2
);

always @(*) begin
    case (y)
        3'b000: Y2 = (w == 0) ? 0 : 0; // State A
        3'b001: Y2 = (w == 0) ? 0 : 1; // State B
        3'b010: Y2 = (w == 0) ? 0 : 1; // State C
        3'b011: Y2 = (w == 0) ? 1 : 1; // State D
        3'b100: Y2 = (w == 0) ? 1 : 1; // State E
        3'b101: Y2 = (w == 0) ? 0 : 1; // State F
        default: Y2 = 0; // Default case
    endcase
end

endmodule

module top_module(
	input [3:1] y,
	input w,
	output reg Y2);

always @(*) begin
    case (y)
        3'b000: Y2 = (w) ? 1'b0 : 1'b0; // State A
        3'b001: Y2 = (w) ? 1'b1 : 1'b0; // State B
        3'b010: Y2 = (w) ? 1'b1 : 1'b0; // State C
        3'b011: Y2 = (w) ? 1'b1 : 1'b0; // State D
        3'b100: Y2 = (w) ? 1'b1 : 1'b1; // State E
        3'b101: Y2 = (w) ? 1'b1 : 1'b0; // State F
        default: Y2 = 1'b0; // Default case
    endcase
end
endmodule

module top_module(
	input [3:1] y,
	input w,
	output reg Y2);

	always @(*) begin
		case (y)
			3'b000: Y2 = (w == 0) ? 0 : 0; // State A
			3'b001: Y2 = (w == 0) ? 0 : 1; // State B
			3'b010: Y2 = (w == 0) ? 0 : 1; // State C
			3'b011: Y2 = (w == 0) ? 0 : 1; // State D
			3'b100: Y2 = 1;                 // State E
			3'b101: Y2 = (w == 0) ? 1 : 1; // State F
			default: Y2 = 0;                // Default case
		endcase
	end
endmodule

module top_module(
	input [3:1] y,
	input w,
	output reg Y2);

	always @* begin
		case (y)
			3'b000: Y2 = (w == 0) ? 0 : 0;  // State A
			3'b001: Y2 = (w == 0) ? 0 : 1;  // State B
			3'b010: Y2 = (w == 0) ? 0 : 1;  // State C
			3'b011: Y2 = (w == 0) ? 0 : 1;  // State D
			3'b100: Y2 = (w == 0) ? 1 : 1;  // State E
			3'b101: Y2 = (w == 0) ? 0 : 1;  // State F
			default: Y2 = 0;                 // Default case
		endcase
	end

endmodule

module top_module(
    input [3:1] y,
    input w,
    output reg Y2);

    always @(*) begin
        case (y)
            3'b000: Y2 = (w) ? 0 : 0; // State A
            3'b001: Y2 = (w) ? 0 : 0; // State B
            3'b010: Y2 = (w) ? 0 : 1; // State C
            3'b011: Y2 = (w) ? 1 : 0; // State D
            3'b100: Y2 = (w) ? 1 : 0; // State E
            3'b101: Y2 = (w) ? 1 : 0; // State F
            default: Y2 = 0;           // Default case
        endcase
    end
endmodule

module top_module(
    input [3:1] y,
    input w,
    output reg Y2);

always @(*) begin
    case (y)
        3'b000: Y2 = (w == 0) ? 0 : 0; // State A
        3'b001: Y2 = (w == 0) ? 0 : 1; // State B
        3'b010: Y2 = (w == 0) ? 0 : 1; // State C
        3'b011: Y2 = (w == 0) ? 0 : 1; // State D
        3'b100: Y2 = (w == 0) ? 1 : 1; // State E
        3'b101: Y2 = (w == 0) ? 0 : 1; // State F
        default: Y2 = 0; // Default case
    endcase
end

endmodule

module top_module(
    input [3:1] y,
    input w,
    output reg Y2);

    always @(*) begin
        case (y)
            3'b000: Y2 = 0; // State A
            3'b001: Y2 = (w == 0) ? 0 : 0; // State B
            3'b010: Y2 = (w == 0) ? 0 : 0; // State C
            3'b011: Y2 = (w == 0) ? 0 : 0; // State D
            3'b100: Y2 = (w == 1) ? 1 : 0; // State E
            3'b101: Y2 = (w == 0) ? 1 : 0; // State F
            default: Y2 = 0; // Default case
        endcase
    end

endmodule


module top_module(
    input ring,
    input vibrate_mode,
    output ringer,
    output motor
);
    assign ringer = ring & ~vibrate_mode;
    assign motor = ring & vibrate_mode;
endmodule

module top_module(
	input ring,
	input vibrate_mode,
	output ringer,
	output motor
);

assign motor = ring && vibrate_mode;
assign ringer = ring && ~vibrate_mode;

endmodule

module top_module(
	input ring,
	input vibrate_mode,
	output ringer,
	output motor
);
	assign ringer = (ring && ~vibrate_mode);
	assign motor = (ring && vibrate_mode);
endmodule

module top_module(
	input ring,
	input vibrate_mode,
	output reg ringer,
	output reg motor
);

always @(*) begin
	ringer = 0;
	motor = 0;
	if (ring) begin
		if (vibrate_mode)
			motor = 1;
		else
			ringer = 1;
	end
end

endmodule

module top_module(
    input ring,
    input vibrate_mode,
    output ringer,
    output motor
);
    assign ringer = ring && ~vibrate_mode;
    assign motor = ring && vibrate_mode;
endmodule


module top_module(
	input a,
	input b,
	output out_assign,
	output reg out_alwaysblock
);

assign out_assign = a & b;

always @(*) begin
	out_alwaysblock = a & b;
end

endmodule

module top_module(
    input a,
    input b,
    output out_assign,
    output reg out_alwaysblock
);

assign out_assign = a & b;

always @* begin
    out_alwaysblock = a & b;
end

endmodule

module top_module(
    input a,
    input b,
    output out_assign,
    output reg out_alwaysblock
);

// Assign statement
assign out_assign = a & b;

// Combinational always block
always @* begin
    out_alwaysblock = a & b;
end

endmodule


module top_module(
    output zero);

    assign zero = 1'b0;

endmodule

module top_module(
	output zero);
	assign zero = 0;
endmodule

module top_module(
    output zero
);
    assign zero = 1'b0;
endmodule


module top_module (
    input clk,
    input a,
    output reg q
);
    reg [1:0] state; // Define a state variable

    always @(posedge clk) begin
        case (state)
            2'b00: begin
                if (a) begin
                    q <= 0;
                    state <= 2'b01; // Move to state 01
                end
            end
            2'b01: begin
                q <= 1;
                state <= 2'b10; // Move to state 10
            end
            2'b10: begin
                if (a) begin
                    q <= 0;
                    state <= 2'b11; // Move to state 11
                end
            end
            2'b11: begin
                q <= 0;
                state <= 2'b01; // Back to state 01
            end
        endcase
    end

    initial begin
        q = 0;
        state = 2'b00; // Initialize state
    end
endmodule

module top_module (
    input clk,
    input a,
    output reg q
);

    always @(posedge clk) begin
        if (a == 0) begin
            q <= q; // retain previous value when a is 0
        end else begin
            q <= ~q; // toggle q when a is 1
        end
    end

endmodule

module top_module (
    input clk,
    input a,
    output reg q
);

always @(posedge clk) begin
    if (a) begin
        q <= ~q;
    end
end

endmodule

module top_module (
	input clk,
	input a,
	output reg q
);

    reg state;

    always @(posedge clk) begin
        if (a == 0) begin
            q <= state; // Keep the value of q when a is 0
        end else begin
            q <= ~q; // Toggle q when a is 1
        end
        state <= q; // Store current value of q into state
    end

endmodule

module top_module (
    input clk,
    input a,
    output reg q
);
    reg [1:0] state; // Define a 2-bit state variable

    always @(posedge clk) begin
        case (state)
            2'b00: begin
                q <= 0;
                if (a) state <= 2'b01;
            end
            2'b01: begin
                q <= 1;
                state <= 2'b10;
            end
            2'b10: begin
                q <= 0;
                if (a) state <= 2'b01;
            end
            default: begin
                q <= 0;
                state <= 2'b00; // Reset state
            end
        endcase
    end

    initial begin
        state = 2'b00; // Initialize state
        q = 0; // Initialize output
    end
endmodule

module top_module (
	input clk,
	input a,
	output reg q
);

    always @(posedge clk) begin
        if (a)
            q <= 0;
        else
            q <= q;
    end

endmodule

module top_module (
	input clk,
	input a,
	output reg q
);

always @(posedge clk) begin
	if (a == 0) begin
		q <= q; // Hold state when a is low
	end else begin
		q <= ~q; // Toggle q when a is high
	end
end

endmodule

module top_module (
	input clk,
	input a,
	output reg q
);

    always @(posedge clk) begin
        if (a == 0) begin
            q <= q; // Retain the value when a is 0
        end else begin
            q <= ~q; // Toggle q when a is 1
        end
    end

endmodule

module top_module (
    input clk,
    input a,
    output reg q
);

    reg [1:0] state; // Define two-state variable for state management

    always @(posedge clk) begin
        case (state)
            2'b00: begin
                q <= 1'b0; // Stay in 0 state
                if (a) state <= 2'b01; // Transition to state 1
            end
            2'b01: begin
                q <= 1'b1; // Set output to 1
                if (!a) state <= 2'b10; // Transition to state 2 on a==0
            end
            2'b10: begin
                q <= 1'b0; // Set output to 0
                if (a) state <= 2'b01; // Transition back to state 1 on a==1
            end
        endcase
    end

    initial begin
        state = 2'b00; // Initialize state to 0
        q = 1'b0; // Initialize output to 0
    end
endmodule

module top_module (
    input clk,
    input a,
    output reg q
);
    reg prev_a;

    always @(posedge clk) begin
        if (a == 0) begin
            q <= q; // maintain current state when a is 0
        end else begin
            if (prev_a == 0) begin
                q <= ~q; // toggle q when a transitions from 0 to 1
            end
        end
        prev_a <= a; // store the previous value of a
    end
endmodule

module top_module (
	input clk,
	input a,
	output reg q
);
	always @(posedge clk) begin
		if (a)
			q <= 0;
		else
			q <= ~q;
	end
endmodule

module top_module (
    input clk,
    input a,
    output reg q
);
    reg [1:0] state; // Define state variable

    always @(posedge clk) begin
        case (state)
            2'b00: begin
                q <= 0;
                state <= (a) ? 2'b01 : 2'b00; // Move to state 01 if a is 1
            end
            2'b01: begin
                q <= 1;
                state <= (a) ? 2'b10 : 2'b01; // Move to state 10 if a is 1, else stay in 01
            end
            2'b10: begin
                q <= 0;
                state <= (a) ? 2'b10 : 2'b01; // Stay in state 10 if a is 1, else go to 01
            end
            default: begin
                q <= 0;
                state <= 2'b00; // Reset state
            end
        endcase
    end
endmodule

module top_module (
	input clk,
	input a,
	output reg q
);

	always @(posedge clk) begin
		if (a == 0) begin
			q <= q; // Hold state when a is 0
		end else begin
			q <= ~q; // Toggle state when a is 1
		end
	end

endmodule

module top_module (
    input clk,
    input a,
    output reg q
);

    reg prev_a;

    always @(posedge clk) begin
        if (prev_a == 0 && a == 1) begin
            q <= 0;
        end else if (a == 1) begin
            q <= 0;
        end else if (a == 0) begin
            q <= 1;
        end
        prev_a <= a;
    end

endmodule

module top_module (
	input clk,
	input a,
	output reg q
);

	always @(posedge clk) begin
		if (a) begin
			q <= 0;
		end else begin
			q <= ~q;
		end
	end

endmodule

module top_module (
    input clk,
    input a,
    output reg q
);
    reg prev_a;

    always @(posedge clk) begin
        if (a == 1'b0) begin
            q <= 1'b1;
        end else begin
            q <= prev_a;
        end
        prev_a <= a;
    end
endmodule

module top_module (
    input clk,
    input a,
    output reg q
);
    always @(posedge clk) begin
        if (a == 1'b1) begin
            q <= ~q;
        end
    end
endmodule

module top_module (
    input clk,
    input a,
    output reg q
);
    reg [1:0] state;

    always @(posedge clk) begin
        case(state)
            2'b00: begin
                q <= 1'b0;
                if (a) state <= 2'b01; // move to state 01 if a is 1
                else state <= 2'b00; // stay in state 00
            end
            2'b01: begin
                q <= 1'b1; // output 1
                if (a) state <= 2'b10; // move to state 10 if a is 1
                else state <= 2'b01; // stay in state 01
            end
            2'b10: begin
                q <= 1'b0; // output 0
                if (a) state <= 2'b10; // stay in state 10
                else state <= 2'b01; // move back to state 01 if a is 0
            end
        endcase
    end

    initial begin
        state = 2'b00; // initial state
        q = 1'b0; // initial output
    end
endmodule


module top_module (
    input clk,
    input areset,
    input x,
    output reg z
);
    reg [1:0] state, next_state;
    reg [31:0] shift_reg; // Sufficient size for arbitrary length
    reg done;

    parameter IDLE = 2'b00,
              SHIFT = 2'b01,
              COMPLEMENT = 2'b10,
              DONE = 2'b11;

    always @(posedge clk or posedge areset) begin
        if (areset) begin
            state <= IDLE;
            shift_reg <= 0;
            done <= 0;
            z <= 0;
        end else begin
            state <= next_state;
            if (state == SHIFT) begin
                shift_reg <= {x, shift_reg[31:1]};
            end else if (state == COMPLEMENT) begin
                shift_reg <= ~shift_reg + 1;
            end else if (state == DONE) begin
                z <= shift_reg[0]; // Output least significant bit
            end
        end
    end

    always @(*) begin
        case (state)
            IDLE: begin
                if (!areset) begin
                    next_state = SHIFT;
                end else begin
                    next_state = IDLE;
                end
            end
            SHIFT: begin
                if (shift_reg[31:1] == 0) begin
                    next_state = COMPLEMENT;
                end else begin
                    next_state = SHIFT;
                end
            end
            COMPLEMENT: begin
                next_state = DONE;
            end
            DONE: begin
                next_state = DONE; // Wait here until reset
            end
            default: next_state = IDLE;
        endcase
    end
endmodule

module top_module (
    input clk,
    input areset,
    input x,
    output reg z
);

    reg [31:0] num; // Register to store the input number
    reg [31:0] complement; // Register to store the 2's complement
    reg [5:0] count; // Counter to keep track of input bits

    always @(posedge clk or posedge areset) begin
        if (areset) begin
            num <= 0;
            complement <= 0;
            count <= 0;
            z <= 0;
        end else begin
            if (count < 32) begin
                num <= {x, num[31:1]}; // Shift in the new bit
                count <= count + 1;
            end else begin
                complement <= ~num + 1; // Calculate 2's complement
                z <= complement[0]; // Output the least significant bit
            end
        end
    end

endmodule

module top_module (
    input clk,
    input areset,
    input x,
    output reg z
);
    reg [3:0] state;
    reg [3:0] count;
    reg [15:0] data; // Assuming max 16-bit input
    reg done;

    parameter IDLE = 4'b0000,
              READ = 4'b0001,
              COMPLEMENT = 4'b0010,
              OUTPUT = 4'b0011;

    always @(posedge clk or posedge areset) begin
        if (areset) begin
            state <= IDLE;
            count <= 0;
            data <= 0;
            z <= 0;
            done <= 0;
        end else begin
            case (state)
                IDLE: begin
                    if (!areset) begin
                        state <= READ;
                        count <= 0;
                        done <= 0;
                    end
                end
                READ: begin
                    if (count < 16) begin
                        data[count] <= x; // Read input bit
                        count <= count + 1;
                    end else begin
                        state <= COMPLEMENT;
                    end
                end
                COMPLEMENT: begin
                    data <= ~data + 1; // 2's complement
                    state <= OUTPUT;
                end
                OUTPUT: begin
                    z <= data[count]; // Output the most significant bit first
                    if (count > 0) begin
                        count <= count - 1;
                    end else begin
                        done <= 1; // Indicate process is done
                        state <= IDLE;
                    end
                end
            endcase
        end
    end
endmodule

module top_module (
	input clk,
	input areset,
	input x,
	output reg z
);

    reg [1:0] state, next_state;
    reg [7:0] counter; // Assuming a maximum bit length of input number
    reg [7:0] result;  // Assuming input is no more than 8 bits

    localparam IDLE = 2'b00, RECEIVING = 2'b01, COMPLETING = 2'b10;

    always @(posedge clk or posedge areset) begin
        if (areset) begin
            state <= IDLE;
            counter <= 0;
            result <= 0;
            z <= 0;
        end else begin
            state <= next_state;
        end
    end

    always @(*) begin
        case (state)
            IDLE: begin
                if (!areset) begin
                    next_state = RECEIVING;
                end else begin
                    next_state = IDLE;
                end
            end
            RECEIVING: begin
                if (counter < 8) begin // Limit to 8 bits
                    result[counter] = x; // Capture input bit
                    counter = counter + 1;
                    next_state = RECEIVING;
                end else begin
                    next_state = COMPLETING;
                end
            end
            COMPLETING: begin
                result = ~result + 1; // Compute 2's complement
                z = result[counter-1]; // Output the completed bit
                if (counter > 0) begin
                    counter = counter - 1; // decrement counter for output
                    next_state = COMPLETING;
                end else begin
                    next_state = IDLE;
                    z = 0; // Output reset
                end
            end
        endcase
    end

endmodule

module top_module (
    input clk,
    input areset,
    input x,
    output reg z
);

    reg [31:0] shift_reg; // Shift register to store bits
    reg [5:0] count; // Counter to keep track of number of bits

    // State Machine States
    typedef enum logic [1:0] {
        IDLE,
        RECEIVE,
        COMPLEMENT
    } state_t;

    state_t current_state, next_state;

    always_ff @(posedge clk or posedge areset) begin
        if (areset) begin
            current_state <= IDLE;
            shift_reg <= 0;
            count <= 0;
            z <= 0;
        end else begin
            current_state <= next_state;
        end
    end

    always_ff @(posedge clk) begin
        if (!areset) begin
            case (current_state)
                RECEIVE: begin
                    shift_reg <= {x, shift_reg[31:1]}; // Shift in the new bit
                    count <= count + 1;
                end
                COMPLEMENT: begin
                    z <= ~shift_reg + 1; // Calculate 2's complement
                end
                default: begin
                    z <= z; // Hold the previous value
                end
            endcase
        end
    end

    always_comb begin
        case (current_state)
            IDLE: begin
                if (!areset) next_state = RECEIVE; // Start receiving input
                else next_state = IDLE;
            end
            RECEIVE: begin
                if (count == 32) next_state = COMPLEMENT; // Max bit count reached
                else next_state = RECEIVE;
            end
            COMPLEMENT: begin
                next_state = IDLE; // Go back to IDLE after computation
            end
            default: next_state = IDLE;
        endcase
    end

endmodule

module top_module (
	input clk,
	input areset,
	input x,
	output reg z
);

	reg [1:0] state; // 0: idle, 1: capturing, 2: outputting
	reg [31:0] temp; // temporary storage for input bits
	reg [4:0] count; // counter for number of bits received

	always @(posedge clk or posedge areset) begin
		if (areset) begin
			state <= 0;
			temp <= 0;
			count <= 0;
			z <= 0;
		end else begin
			case (state)
				0: begin // idle state
					if (!areset) begin
						state <= 1; // move to capturing state on reset release
					end
				end
				1: begin // capturing state
					temp[count] <= x; // store input bit in temporary storage
					count <= count + 1; // increment count
					if (count == 31) begin // max bits reached
						state <= 2; // move to outputting state
					end
				end
				2: begin // outputting state
					z <= ~temp + 1; // compute 2's complement
					state <= 0; // return to idle state
					count <= 0; // reset the counter
				end
			endcase
		end
	end

endmodule

module top_module (
    input clk,
    input areset,
    input x,
    output reg z
);
    reg [N-1:0] num; // A register to hold the input number (assume N is defined based on expected length)
    reg [N-1:0] two_complement;
    reg [3:0] state; // State encoding

    localparam IDLE = 2'b00, SHIFT = 2'b01, COMPLEMENT = 2'b10;

    always @(posedge clk or posedge areset) begin
        if (areset) begin
            state <= IDLE;
            z <= 0;
            num <= 0;
            two_complement <= 0;
        end else begin
            case (state)
                IDLE: begin
                    if (!areset) begin
                        state <= SHIFT;
                        num <= 0; // Initialize num
                    end
                end
                SHIFT: begin
                    num <= {x, num[N-1:1]}; // Shift in the new bit
                    if (/* condition to move to COMPLEMENT state */) begin
                        state <= COMPLEMENT;
                    end
                end
                COMPLEMENT: begin
                    two_complement <= ~num + 1; // Compute 2's complement
                    z <= two_complement; // Output the result
                    state <= IDLE; // Ready for next input
                end
            endcase
        end
    end
endmodule

module top_module (
    input clk,
    input areset,
    input x,
    output reg z
);

    reg [2:0] state, next_state;
    reg [31:0] negated; // Assume 32-bit input for notational convenience
    reg [5:0] count; // Counter for number of bits processed
    localparam IDLE = 3'b000, PROCESS = 3'b001, OUTPUT = 3'b010;

    always @(posedge clk or posedge areset) begin
        if (areset) begin
            state <= IDLE;
            count <= 0;
            z <= 1'b0;
            negated <= 0;
        end else begin
            state <= next_state;
        end
    end

    always @(*) begin
        case (state)
            IDLE: begin
                if (!areset) begin
                    next_state = PROCESS;
                end else begin
                    next_state = IDLE;
                end
            end
            PROCESS: begin
                if (count < 32) begin
                    negated[count] = ~x; // Negate the input bit
                    count = count + 1;
                    next_state = PROCESS;
                end else begin
                    next_state = OUTPUT;
                end
            end
            OUTPUT: begin
                z = negated[0]; // Output the least significant bit
                next_state = OUTPUT; // Stay in OUTPUT state
            end
            default: next_state = IDLE;
        endcase
    end

endmodule

module top_module (
    input clk,
    input areset,
    input x,
    output z
);

    reg [31:0] shift_reg; // Assuming a maximum input length of 32 bits
    reg [31:0] twos_comp;
    reg [5:0] count; // To keep track of bit positions
    reg done;

    assign z = done ? twos_comp : 1'b0;

    always @(posedge clk or posedge areset) begin
        if (areset) begin
            shift_reg <= 0;
            twos_comp <= 0;
            count <= 0;
            done <= 0;
        end else begin
            if (count < 32) begin
                shift_reg <= {x, shift_reg[31:1]};
                count <= count + 1;
            end else if (count == 32) begin
                twos_comp <= ~shift_reg + 1; // Calculate 2's complement
                done <= 1; // Indicate that computation is done
            end
        end
    end

endmodule

module top_module (
    input clk,
    input areset,
    input x,
    output reg z
);

    reg [31:0] temp; // Assume a maximum of 32 bits for the input number
    reg [5:0] count; // To keep track of the number of bits received
    reg processing;   // State to indicate if we are processing the input

    always @(posedge clk or posedge areset) begin
        if (areset) begin
            temp <= 0;
            count <= 0;
            processing <= 0;
            z <= 1'b0; // Output should be 0 when reset is active
        end else if (!processing) begin
            // Start processing input
            if (count < 32) begin
                temp[count] <= x; // Store input bit
                count <= count + 1; // Increase the count
            end
            if (count == 31) begin
                processing <= 1; // Start processing the 2's complement
            end
        end else if (processing) begin
            // Compute 2's complement
            z <= ~temp[count - 1] + 1; // Add 1 to the inverted number
            processing <= 0; // Reset processing
            count <= 0; // Reset the bit count
        end
    end

endmodule

module top_module (
	input clk,
	input areset,
	input x,
	output reg z
);

reg [31:0] data; // to store the input number
reg [5:0] count; // to keep track of the number of bits

always @(posedge clk or posedge areset) begin
	if (areset) begin
		data <= 0;
		count <= 0;
		z <= 0;
	end else begin
		if (count < 32) begin // assuming a maximum of 32 bits
			data[count] <= x; // collect input bits
			count <= count + 1;
		end else begin
			z <= ~data + 1; // output the 2's complement
		end
	end
end

endmodule

module top_module (
	input clk,
	input areset,
	input x,
	output reg z
);
	reg [31:0] temp; // Using 32 bits to store the input
	reg [5:0] count; // Count the number of bits received
	reg start; // State to indicate if conversion has started

	always @(posedge clk or posedge areset) begin
		if (areset) begin
			temp <= 0;
			count <= 0;
			start <= 0;
			z <= 0;
		end else begin
			if (!start) begin
				// Start receiving bits
				temp[count] <= x;
				count <= count + 1;
				if (count == 31) begin
					start <= 1; // Stop receiving after 32 bits
				end
			end else begin
				// Compute 2's complement on the output
				if (count > 0) begin
					if (count == 1) begin
						z <= ~temp[0] + 1; // Add 1 to the inverted least significant bit
					end else begin
						z <= ~temp[count-1] + 1; // For remaining bits
						temp[count-1] <= ~temp[count-1];
					end
					count <= count - 1; // Decrease count
				end
			end
		end
	end
endmodule

module top_module (
    input clk,
    input areset,
    input x,
    output reg z
);
    reg [1:0] state, next_state;
    reg [31:0] result;
    reg [4:0] count;

    parameter IDLE = 2'b00, ADD = 2'b01, OUTPUT = 2'b10;

    always @(posedge clk or posedge areset) begin
        if (areset) begin
            state <= IDLE;
            count <= 0;
            result <= 0;
            z <= 0;
        end else begin
            state <= next_state;
        end
    end

    always @(*) begin
        next_state = state;
        case (state)
            IDLE: begin
                if (!areset) begin
                    next_state = ADD;
                    count = 0;
                    result = 1;  // Start with 1 for 2's complement
                end
            end
            ADD: begin
                if (count < 32) begin
                    result = {x, result[31:1]} + 1; // Shift in new bit and increment the result
                    count = count + 1;
                end else begin
                    next_state = OUTPUT;
                end
            end
            OUTPUT: begin
                z = result[0];  // Output the LSB of the result
                next_state = ADD; // Go back to ADD to wait for the next input
            end
        endcase
    end
endmodule

module top_module (
    input clk,
    input areset,
    input x,
    output reg z
);

    reg [31:0] bit_storage; // Sufficient to store bits of arbitrary length
    reg [4:0] count; // To count the number of bits processed
    reg processing; // Flag to indicate processing state

    always @(posedge clk or posedge areset) begin
        if (areset) begin
            z <= 0;
            bit_storage <= 0;
            count <= 0;
            processing <= 0;
        end else if (!processing) begin
            // Start processing
            bit_storage[count] <= x; // Store the current bit
            count <= count + 1;
            if (count == 31) begin // Stops after 32 bits (can be adjusted)
                processing <= 1;
            end
        end else begin
            // Perform 2's complement
            if (count > 0) begin
                z <= ~bit_storage[count - 1]; // Invert LSB
                bit_storage[count - 1] <= 0; // Clear the processed bit
                count <= count - 1;
            end else begin
                z <= 0; // Finished processing
                processing <= 0; // Reset processing flag
            end
        end
    end

endmodule

module top_module (
    input clk,
    input areset,
    input x,
    output reg z
);

    reg [1:0] state;
    reg carry;
    reg [31:0] result; // Assuming a maximum input width of 32 bits

    localparam IDLE = 2'b00,
               COMPUTE = 2'b01,
               OUTPUT = 2'b10;

    always @(posedge clk or posedge areset) begin
        if (areset) begin
            state <= IDLE;
            carry <= 1'b1; // Initial carry for 2's complement
            result <= 32'b0;
            z <= 1'b0;
        end else begin
            case (state)
                IDLE: begin
                    if (~areset) begin
                        state <= COMPUTE;
                    end
                end

                COMPUTE: begin
                    result <= {x, result[31:1]} + carry; // Shift in the new bit and add carry
                    carry <= (x ^ carry); // Update carry
                    if (result[31] == 1'b1)
                        state <= OUTPUT;
                end

                OUTPUT: begin
                    z <= result[0]; // Output the least significant bit
                    result <= {1'b0, result[31:1]}; // Shift result for subsequent output
                    if (result == 32'b0)
                        state <= IDLE; // Reset state if complete
                end
            endcase
        end
    end
endmodule

module top_module (
    input clk,
    input areset,
    input x,
    output reg z
);

    reg [31:0] data; // Assume a maximum width of 32 bits for input
    reg [5:0] count; // Counter for number of bits received
    reg done; // Signal indicating the completion of the operation

    always @(posedge clk or posedge areset) begin
        if (areset) begin
            data <= 0;
            count <= 0;
            done <= 0;
            z <= 0;
        end else if (!done) begin
            data[count] <= x; // Capture incoming bit
            count <= count + 1;
            if (count == 31) begin // Assuming 32 bits max
                done <= 1; // Signal that we have received all bits
            end
        end else begin
            z <= ~data + 1; // Calculate 2's complement
        end
    end

endmodule

module top_module (
    input clk,
    input areset,
    input x,
    output reg z
);

    reg [31:0] shift_reg; // Assumed maximum width for the input
    reg [5:0] count; // Counter for tracking input bits
    reg done; // Flag to indicate completion

    always @(posedge clk or posedge areset) begin
        if (areset) begin
            shift_reg <= 0;
            count <= 0;
            done <= 0;
            z <= 0;
        end else if (!done) begin
            shift_reg[count] <= x; // Shift in the input bit
            count <= count + 1; // Increment count
            if (count == 31) begin // Check if we have 32 bits
                done <= 1; // Mark completion
            end
        end else begin
            z <= ~shift_reg + 1; // Compute 2's complement
        end
    end

endmodule

module top_module (
    input clk,
    input areset,
    input x,
    output reg z
);

    reg [31:0] temp; // Temporary storage for 2's complement
    reg [4:0] count; // Counter to keep track of bits processed
    reg done;        // State to indicate completion of processing

    always @(posedge clk or posedge areset) begin
        if (areset) begin
            temp <= 0;
            count <= 0;
            z <= 0;
            done <= 0;
        end else if (!areset) begin
            if (count < 32) begin
                temp[count] <= x; // Store incoming bit in the appropriate position
                count <= count + 1;
            end else if (count == 32 && !done) begin
                z <= ~temp + 1; // Calculate 2's complement
                done <= 1; // Set done flag
            end
        end
    end

endmodule

module top_module (
    input clk,
    input areset,
    input x,
    output reg z
);
    reg [31:0] temp; // Ensure sufficient size for the input
    reg [4:0] count; // To count the number of bits processed

    typedef enum reg [1:0] {
        IDLE,
        PROCESS,
        OUTPUT
    } state_t;

    state_t state, next_state;

    always @(posedge clk or posedge areset) begin
        if (areset) begin
            state <= IDLE;
            count <= 0;
            temp <= 0;
            z <= 0;
        end else begin
            state <= next_state;
        end
    end

    always @(*) begin
        case (state)
            IDLE: begin
                if (!areset) begin
                    next_state = PROCESS;
                    z = 0;
                end else begin
                    next_state = IDLE;
                end
            end
            PROCESS: begin
                if (count < 32) begin
                    temp[count] = x; // Capture the input bit
                    count = count + 1;
                    next_state = PROCESS;
                end else begin
                    next_state = OUTPUT;
                end
            end
            OUTPUT: begin
                z = ~temp[count-1:0] + 1; // Calculate 2's complement
                next_state = IDLE; // Go back to IDLE after output
            end
            default: next_state = IDLE;
        endcase
    end
endmodule

module top_module (
    input clk,
    input areset,
    input x,
    output reg z
);

    reg [31:0] shift_reg; // Assuming a maximum input length of 32 bits
    reg [5:0] count;      // Counter for the number of bits shifted in

    always @(posedge clk or posedge areset) begin
        if (areset) begin
            shift_reg <= 0;
            z <= 0;
            count <= 0;
        end else begin
            if (count < 32) begin
                shift_reg <= {x, shift_reg[31:1]}; // Shift in the new bit
                count <= count + 1;
            end
            else begin
                z <= ~shift_reg + 1; // Calculate 2's complement
            end
        end
    end

endmodule


module top_module (
	input clk,
	input in,
	input areset,
	output reg out
);

	typedef enum reg [1:0] {A, B, C, D} state_t;
	state_t current_state, next_state;

	always @(posedge clk or posedge areset) begin
		if (areset) begin
			current_state <= A;
		end else begin
			current_state <= next_state;
		end
	end

	always @(*) begin
		case (current_state)
			A: begin
				next_state = (in) ? B : A;
				out = 0;
			end
			B: begin
				next_state = (in) ? B : C;
				out = 0;
			end
			C: begin
				next_state = (in) ? D : A;
				out = 0;
			end
			D: begin
				next_state = (in) ? B : C;
				out = 1;
			end
			default: begin
				next_state = A;
				out = 0;
			end
		endcase
	end

endmodule

module top_module (
    input clk,
    input in,
    input areset,
    output reg out
);

    typedef enum reg [1:0] {
        A = 2'b00,
        B = 2'b01,
        C = 2'b10,
        D = 2'b11
    } state_t;

    state_t current_state, next_state;

    always @(posedge clk or posedge areset) begin
        if (areset) begin
            current_state <= A;
        end else begin
            current_state <= next_state;
        end
    end

    always @* begin
        case (current_state)
            A: begin
                if (in) next_state = B;
                else next_state = A;
                out = 0;
            end
            B: begin
                if (in) next_state = B;
                else next_state = C;
                out = 0;
            end
            C: begin
                if (in) next_state = D;
                else next_state = A;
                out = 0;
            end
            D: begin
                if (in) next_state = B;
                else next_state = C;
                out = 1;
            end
            default: begin
                next_state = A;
                out = 0;
            end
        endcase
    end

endmodule

module top_module (
    input clk,
    input in,
    input areset,
    output reg out
);

    // State encoding
    typedef enum logic [1:0] {
        A = 2'b00,
        B = 2'b01,
        C = 2'b10,
        D = 2'b11
    } state_t;

    state_t current_state, next_state;

    // State transition logic
    always_ff @(posedge clk or posedge areset) begin
        if (areset)
            current_state <= A;
        else
            current_state <= next_state;
    end

    // Next state logic
    always_comb begin
        case (current_state)
            A: next_state = (in) ? B : A;
            B: next_state = (in) ? B : C;
            C: next_state = (in) ? D : A;
            D: next_state = (in) ? B : C;
            default: next_state = A; // Safe default
        endcase
    end

    // Output logic
    always_ff @(current_state) begin
        case (current_state)
            A: out = 0;
            B: out = 0;
            C: out = 0;
            D: out = 1;
            default: out = 0; // Safe default
        endcase
    end

endmodule

module top_module (
    input clk,
    input in,
    input areset,
    output reg out
);

    typedef enum reg [1:0] {
        A = 2'b00,
        B = 2'b01,
        C = 2'b10,
        D = 2'b11
    } state_t;

    state_t current_state, next_state;

    always @(posedge clk or posedge areset) begin
        if (areset) begin
            current_state <= A;
        end else begin
            current_state <= next_state;
        end
    end

    always @(*) begin
        case (current_state)
            A: begin
                if (in) begin
                    next_state = B;
                end else begin
                    next_state = A;
                end
                out = 0;
            end
            B: begin
                if (in) begin
                    next_state = B;
                end else begin
                    next_state = C;
                end
                out = 0;
            end
            C: begin
                if (in) begin
                    next_state = D;
                end else begin
                    next_state = A;
                end
                out = 0;
            end
            D: begin
                if (in) begin
                    next_state = B;
                end else begin
                    next_state = C;
                end
                out = 1;
            end
            default: begin
                next_state = A;
                out = 0;
            end
        endcase
    end

endmodule

module top_module (
    input clk,
    input in,
    input areset,
    output reg out
);
    typedef enum logic [1:0] {A, B, C, D} state_t;
    state_t state, next_state;

    always_ff @(posedge clk or posedge areset) begin
        if (areset) begin
            state <= A;
        end else begin
            state <= next_state;
        end
    end

    always_comb begin
        case (state)
            A: begin
                next_state = (in) ? B : A;
                out = 0;
            end
            B: begin
                next_state = (in) ? B : C;
                out = 0;
            end
            C: begin
                next_state = (in) ? D : A;
                out = 0;
            end
            D: begin
                next_state = (in) ? B : C;
                out = 1;
            end
        endcase
    end
endmodule

module top_module (
	input clk,
	input in,
	input areset,
	output out
);

	typedef enum logic [1:0] {
		A = 2'b00,
		B = 2'b01,
		C = 2'b10,
		D = 2'b11
	} state_t;

	state_t current_state, next_state;

	assign out = (current_state == D) ? 1'b1 : 1'b0;

	always_ff @(posedge clk or posedge areset) begin
		if (areset) begin
			current_state <= A;
		end else begin
			current_state <= next_state;
		end
	end

	always_comb begin
		case (current_state)
			A: next_state = (in == 0) ? A : B;
			B: next_state = (in == 0) ? C : B;
			C: next_state = (in == 0) ? A : D;
			D: next_state = (in == 0) ? C : B;
			default: next_state = A;
		endcase
	end

endmodule

module top_module (
    input clk,
    input in,
    input areset,
    output reg out
);

    typedef enum reg [1:0] {
        A = 2'b00,
        B = 2'b01,
        C = 2'b10,
        D = 2'b11
    } state_t;

    state_t current_state, next_state;

    always @(posedge clk or posedge areset) begin
        if (areset) begin
            current_state <= A;
        end else begin
            current_state <= next_state;
        end
    end

    always @(*) begin
        case (current_state)
            A: begin
                next_state = (in) ? B : A;
                out = 0;
            end
            B: begin
                next_state = (in) ? B : C;
                out = 0;
            end
            C: begin
                next_state = (in) ? D : A;
                out = 0;
            end
            D: begin
                next_state = (in) ? B : C;
                out = 1;
            end
            default: begin
                next_state = A;
                out = 0;
            end
        endcase
    end

endmodule

module top_module (
    input clk,
    input in,
    input areset,
    output reg out
);

    typedef enum reg [1:0] {
        A = 2'b00,
        B = 2'b01,
        C = 2'b10,
        D = 2'b11
    } state_t;

    state_t state, next_state;

    // State Transition
    always @(*) begin
        case (state)
            A: next_state = (in == 0) ? A : B;
            B: next_state = (in == 0) ? C : B;
            C: next_state = (in == 0) ? A : D;
            D: next_state = (in == 0) ? C : B;
            default: next_state = A;
        endcase
    end

    // Output Logic
    always @(posedge clk or posedge areset) begin
        if (areset) begin
            state <= A;
            out <= 0;
        end else begin
            state <= next_state;
            out <= (state == D) ? 1 : 0;
        end
    end
endmodule

module top_module (
	input clk,
	input in,
	input areset,
	output reg out
);

typedef enum reg [1:0] {
	A = 2'b00,
	B = 2'b01,
	C = 2'b10,
	D = 2'b11
} state_t;

state_t current_state, next_state;

always @(posedge clk or posedge areset) begin
	if (areset) begin
		current_state <= A;
	end else begin
		current_state <= next_state;
	end
end

always @(*) begin
	case (current_state)
		A: begin
			if (in) next_state = B; else next_state = A;
			out = 0;
		end
		B: begin
			if (in) next_state = B; else next_state = C;
			out = 0;
		end
		C: begin
			if (in) next_state = D; else next_state = A;
			out = 0;
		end
		D: begin
			if (in) next_state = B; else next_state = C;
			out = 1;
		end
	endcase
end

endmodule

module top_module (
	input clk,
	input in,
	input areset,
	output reg out
);

	typedef enum reg [1:0] {A, B, C, D} state_t;
	state_t state, next_state;

	// State transition logic
	always @(*) begin
		case (state)
			A: next_state = (in == 0) ? A : B;
			B: next_state = (in == 0) ? C : B;
			C: next_state = (in == 0) ? A : D;
			D: next_state = (in == 0) ? C : B;
			default: next_state = A;
		endcase
	end

	// Output logic
	always @(*) begin
		case (state)
			A: out = 0;
			B: out = 0;
			C: out = 0;
			D: out = 1;
			default: out = 0;
		endcase
	end

	// State update
	always @(posedge clk or posedge areset) begin
		if (areset)
			state <= A;
		else
			state <= next_state;
	end

endmodule

module top_module (
    input clk,
    input in,
    input areset,
    output reg out
);

    typedef enum reg [1:0] {
        A = 2'b00,
        B = 2'b01,
        C = 2'b10,
        D = 2'b11
    } state_t;

    state_t state, next_state;

    always @(posedge clk or posedge areset) begin
        if (areset)
            state <= A;
        else
            state <= next_state;
    end

    always @(*) begin
        case (state)
            A: begin
                if (in) next_state = B;
                else next_state = A;
                out = 0;
            end
            B: begin
                if (in) next_state = B;
                else next_state = C;
                out = 0;
            end
            C: begin
                if (in) next_state = D;
                else next_state = A;
                out = 0;
            end
            D: begin
                if (in) next_state = B;
                else next_state = C;
                out = 1;
            end
            default: begin
                next_state = A;
                out = 0;
            end
        endcase
    end

endmodule

module top_module (
	input clk,
	input in,
	input areset,
	output reg out
);

typedef enum logic [1:0] {
	A = 2'b00,
	B = 2'b01,
	C = 2'b10,
	D = 2'b11
} state_t;

state_t current_state, next_state;

always_ff @(posedge clk or posedge areset) begin
	if (areset)
		current_state <= A;
	else
		current_state <= next_state;
end

always_ff @(current_state, in) begin
	case (current_state)
		A: begin
			if (in)
				next_state = B;
			else
				next_state = A;
			out = 0;
		end
		B: begin
			if (in)
				next_state = B;
			else
				next_state = C;
			out = 0;
		end
		C: begin
			if (in)
				next_state = D;
			else
				next_state = A;
			out = 0;
		end
		D: begin
			if (in)
				next_state = B;
			else
				next_state = C;
			out = 1;
		end
	endcase
end

endmodule

module top_module (
	input clk,
	input in,
	input areset,
	output reg out
);

	typedef enum reg [1:0] {A, B, C, D} state_t;
	state_t state, next_state;

	always @(posedge clk or posedge areset) begin
		if (areset) begin
			state <= A;
		end else begin
			state <= next_state;
		end
	end

	always @* begin
		case (state)
			A: begin
				if (in) next_state = B; else next_state = A;
				out = 0;
			end
			B: begin
				if (in) next_state = B; else next_state = C;
				out = 0;
			end
			C: begin
				if (in) next_state = D; else next_state = A;
				out = 0;
			end
			D: begin
				if (in) next_state = B; else next_state = C;
				out = 1;
			end
			default: begin
				next_state = A;
				out = 0;
			end
		endcase
	end
endmodule

module top_module (
	input clk,
	input in,
	input areset,
	output reg out
);

	typedef enum reg [1:0] {A, B, C, D} state_t;
	state_t state, next_state;

	// State transition logic
	always @(*) begin
		case (state)
			A: next_state = (in == 0) ? A : B;
			B: next_state = (in == 0) ? C : B;
			C: next_state = (in == 0) ? A : D;
			D: next_state = (in == 0) ? C : B;
			default: next_state = A;
		endcase
	end

	// Output logic
	always @(*) begin
		case (state)
			A, B, C: out = 0;
			D: out = 1;
			default: out = 0;
		endcase
	end

	// State register
	always @(posedge clk or posedge areset) begin
		if (areset) begin
			state <= A;
		end else begin
			state <= next_state;
		end
	end

endmodule

module top_module (
    input clk,
    input in,
    input areset,
    output reg out
);

    typedef enum reg [1:0] {A, B, C, D} state_t;
    state_t state, next_state;

    always @(posedge clk or posedge areset) begin
        if (areset) begin
            state <= A;
        end else begin
            state <= next_state;
        end
    end

    always @(*) begin
        case (state)
            A: begin
                next_state = (in) ? B : A;
                out = 0;
            end
            B: begin
                next_state = (in) ? B : C;
                out = 0;
            end
            C: begin
                next_state = (in) ? D : A;
                out = 0;
            end
            D: begin
                next_state = (in) ? B : C;
                out = 1;
            end
            default: begin
                next_state = A;
                out = 0;
            end
        endcase
    end

endmodule

module top_module (
	input clk,
	input in,
	input areset,
	output reg out
);

	typedef enum reg [1:0] {A, B, C, D} state_t;
	state_t state, next_state;

	always @(posedge clk or posedge areset) begin
		if (areset) begin
			state <= A;
		end else begin
			state <= next_state;
		end
	end

	always @* begin
		case (state)
			A: begin
				next_state = (in) ? B : A;
				out = 0;
			end
			B: begin
				next_state = (in) ? B : C;
				out = 0;
			end
			C: begin
				next_state = (in) ? D : A;
				out = 0;
			end
			D: begin
				next_state = (in) ? B : C;
				out = 1;
			end
		endcase
	end

endmodule

module top_module (
    input clk,
    input in,
    input areset,
    output reg out
);

    typedef enum reg [1:0] {A, B, C, D} state_t;
    state_t state, next_state;

    always @(posedge clk or posedge areset) begin
        if (areset) begin
            state <= A;
        end else begin
            state <= next_state;
        end
    end

    always @(*) begin
        case (state)
            A: begin
                if (in) begin
                    next_state = B;
                end else begin
                    next_state = A;
                end
                out = 0;
            end
            B: begin
                if (in) begin
                    next_state = B;
                end else begin
                    next_state = C;
                end
                out = 0;
            end
            C: begin
                if (in) begin
                    next_state = D;
                end else begin
                    next_state = A;
                end
                out = 0;
            end
            D: begin
                if (in) begin
                    next_state = B;
                end else begin
                    next_state = C;
                end
                out = 1;
            end
            default: begin
                next_state = A;
                out = 0;
            end
        endcase
    end
endmodule

module top_module (
    input clk,
    input in,
    input areset,
    output reg out
);
    typedef enum reg [1:0] {A, B, C, D} state_t;
    state_t current_state, next_state;

    always @(posedge clk or posedge areset) begin
        if (areset) begin
            current_state <= A;
        end else begin
            current_state <= next_state;
        end
    end

    always @(*) begin
        case (current_state)
            A: begin
                next_state = (in == 0) ? A : B;
                out = 0;
            end
            B: begin
                next_state = (in == 0) ? C : B;
                out = 0;
            end
            C: begin
                next_state = (in == 0) ? A : D;
                out = 0;
            end
            D: begin
                next_state = (in == 0) ? C : B;
                out = 1;
            end
            default: begin
                next_state = A;
                out = 0;
            end
        endcase
    end
endmodule

module top_module (
    input clk,
    input in,
    input areset,
    output reg out
);

    typedef enum logic [1:0] {
        A = 2'b00,
        B = 2'b01,
        C = 2'b10,
        D = 2'b11
    } state_t;

    state_t current_state, next_state;

    // State transition logic
    always @(*) begin
        case (current_state)
            A: next_state = (in) ? B : A;
            B: next_state = (in) ? B : C;
            C: next_state = (in) ? D : A;
            D: next_state = (in) ? B : C;
            default: next_state = A;
        endcase
    end

    // Output logic
    always @(current_state) begin
        case (current_state)
            A, B, C: out = 0;
            D: out = 1;
            default: out = 0;
        endcase
    end

    // State register
    always @(posedge clk or posedge areset) begin
        if (areset) begin
            current_state <= A;
        end else begin
            current_state <= next_state;
        end
    end

endmodule

module top_module (
	input clk,
	input in,
	input areset,
	output reg out
);

    typedef enum reg [1:0] {
        A = 2'b00,
        B = 2'b01,
        C = 2'b10,
        D = 2'b11
    } state_t;

    state_t state, next_state;

    always @(posedge clk or posedge areset) begin
        if (areset) begin
            state <= A;
        end else begin
            state <= next_state;
        end
    end

    always @(*) begin
        case (state)
            A: begin
                if (in) next_state = B; else next_state = A;
                out = 0;
            end
            B: begin
                if (in) next_state = B; else next_state = C;
                out = 0;
            end
            C: begin
                if (in) next_state = D; else next_state = A;
                out = 0;
            end
            D: begin
                if (in) next_state = B; else next_state = C;
                out = 1;
            end
            default: begin
                next_state = A;
                out = 0;
            end
        endcase
    end

endmodule


module top_module (
	input [31:0] in,
	output [31:0] out
);

assign out = {in[7:0], in[15:8], in[23:16], in[31:24]};

endmodule


module top_module (
    input clk,
    input d,
    input r,
    output logic q
);
    always_ff @(posedge clk or posedge r) begin
        if (r) begin
            q <= 0;
        end else begin
            q <= d;
        end
    end
endmodule

module top_module (
	input clk,
	input d,
	input r,
	output logic q
);
always_ff @(posedge clk or posedge r) begin
	if (r)
		q <= 0;
	else
		q <= d;
end
endmodule


module top_module(
	input x,
	input y,
	output z
);
	assign z = (x ^ y) & x;
endmodule

module top_module(
	input x,
	input y,
	output z);

	assign z = (x ^ y) & x;

endmodule


module top_module(
    input clk,
    input load,
    input ena,
    input [1:0] amount,
    input [63:0] data,
    output reg [63:0] q
);

always @(posedge clk) begin
    if (load) begin
        q <= data;
    end else if (ena) begin
        case (amount)
            2'b00: q <= {q[62:0], 1'b0};        // Shift left by 1 bit
            2'b01: q <= {q[55:0], 8'b0};        // Shift left by 8 bits
            2'b10: q <= {q[63], q[62:1]};       // Shift right by 1 bit (arithmetic)
            2'b11: q <= {q[63], q[63:8]};       // Shift right by 8 bits (arithmetic)
            default: q <= q;                    // No operation on invalid amount
        endcase
    end
end

endmodule

module top_module(
    input clk,
    input load,
    input ena,
    input [1:0] amount,
    input [63:0] data,
    output reg [63:0] q
);

    always @(posedge clk) begin
        if (load) begin
            q <= data;
        end else if (ena) begin
            case (amount)
                2'b00: q <= q << 1;          // Shift left by 1 bit
                2'b01: q <= q << 8;          // Shift left by 8 bits
                2'b10: q <= {q[62:0], q[63]}; // Arithmetic right shift by 1 bit
                2'b11: q <= {q[55:0], q[63:56]}; // Arithmetic right shift by 8 bits
            endcase
        end
    end

endmodule

module top_module(
    input clk,
    input load,
    input ena,
    input [1:0] amount,
    input [63:0] data,
    output reg [63:0] q
);

    always @(posedge clk) begin
        if (load) begin
            q <= data;
        end else if (ena) begin
            case (amount)
                2'b00: q <= q << 1;         // Shift left by 1 bit
                2'b01: q <= q << 8;         // Shift left by 8 bits
                2'b10: q <= {q[62:0], q[63]}; // Arithmetic shift right by 1 bit
                2'b11: q <= {q[63:8], q[63:56]}; // Arithmetic shift right by 8 bits
                default: q <= q;            // No operation
            endcase
        end
    end

endmodule

module top_module(
    input clk,
    input load,
    input ena,
    input [1:0] amount,
    input [63:0] data,
    output reg [63:0] q
);

always @(posedge clk) begin
    if (load) begin
        q <= data;
    end else if (ena) begin
        case (amount)
            2'b00: q <= q << 1;        // Shift left by 1 bit
            2'b01: q <= q << 8;        // Shift left by 8 bits
            2'b10: q <= $signed(q) >> 1; // Arithmetic shift right by 1 bit
            2'b11: q <= $signed(q) >> 8; // Arithmetic shift right by 8 bits
            default: q <= q;           // No change
        endcase
    end
end

endmodule

module top_module(
    input clk,
    input load,
    input ena,
    input [1:0] amount,
    input [63:0] data,
    output reg [63:0] q
);

always @(posedge clk) begin
    if (load) begin
        q <= data;
    end else if (ena) begin
        case (amount)
            2'b00: q <= q << 1;      // Shift left by 1 bit
            2'b01: q <= q << 8;      // Shift left by 8 bits
            2'b10: q <= {q[62:0], q[63]}; // Arithmetic right shift by 1 bit
            2'b11: q <= {q[63:8], q[63:56]}; // Arithmetic right shift by 8 bits
        endcase
    end
end

endmodule

module top_module(
    input clk,
    input load,
    input ena,
    input [1:0] amount,
    input [63:0] data,
    output reg [63:0] q
);

    always @(posedge clk) begin
        if (load) begin
            q <= data;
        end else if (ena) begin
            case (amount)
                2'b00: q <= q << 1;      // Shift left by 1 bit
                2'b01: q <= q << 8;      // Shift left by 8 bits
                2'b10: q <= {q[62:0], q[63]}; // Arithmetic right shift by 1 bit
                2'b11: q <= {q[55:0], q[63:56]}; // Arithmetic right shift by 8 bits
                default: q <= q;         // No operation
            endcase
        end
    end

endmodule

module top_module(
	input clk,
	input load,
	input ena,
	input [1:0] amount,
	input [63:0] data,
	output reg [63:0] q
);

	always @(posedge clk) begin
		if (load) begin
			q <= data;
		end else if (ena) begin
			case (amount)
				2'b00: q <= q << 1;     // Shift left by 1
				2'b01: q <= q << 8;     // Shift left by 8
				2'b10: q <= {q[62:0], q[63]}; // Arithmetic right shift by 1
				2'b11: q <= {q[55:0], q[63:56]}; // Arithmetic right shift by 8
			endcase
		end
	end

endmodule

module top_module(
    input clk,
    input load,
    input ena,
    input [1:0] amount,
    input [63:0] data,
    output reg [63:0] q
);

always @(posedge clk) begin
    if (load) begin
        q <= data;
    end else if (ena) begin
        case (amount)
            2'b00: q <= q << 1;       // Shift left by 1 bit
            2'b01: q <= q << 8;       // Shift left by 8 bits
            2'b10: q <= {q[62:0], q[63]}; // Arithmetic shift right by 1 bit
            2'b11: q <= {q[55:0], q[63:56]}; // Arithmetic shift right by 8 bits
            default: q <= q;          // No operation
        endcase
    end
end

endmodule

module top_module(
    input clk,
    input load,
    input ena,
    input [1:0] amount,
    input [63:0] data,
    output reg [63:0] q
);

    always @(posedge clk) begin
        if (load) begin
            q <= data;
        end else if (ena) begin
            case (amount)
                2'b00: q <= q << 1;      // Shift left by 1 bit
                2'b01: q <= q << 8;      // Shift left by 8 bits
                2'b10: q <= $signed(q) >>> 1; // Arithmetic right shift by 1 bit
                2'b11: q <= $signed(q) >>> 8; // Arithmetic right shift by 8 bits
            endcase
        end
    end

endmodule

module top_module(
    input clk,
    input load,
    input ena,
    input [1:0] amount,
    input [63:0] data,
    output reg [63:0] q
);

    always @(posedge clk) begin
        if (load) begin
            q <= data;
        end else if (ena) begin
            case (amount)
                2'b00: q <= q << 1;        // Shift left by 1 bit
                2'b01: q <= q << 8;        // Shift left by 8 bits
                2'b10: q <= $signed(q) >>> 1; // Arithmetic right shift by 1 bit
                2'b11: q <= $signed(q) >>> 8; // Arithmetic right shift by 8 bits
                default: q <= q;           // No change
            endcase
        end
    end

endmodule

module top_module(
	input clk,
	input load,
	input ena,
	input [1:0] amount,
	input [63:0] data,
	output reg [63:0] q);

	always @(posedge clk) begin
		if (load) begin
			q <= data;
		end else if (ena) begin
			case (amount)
				2'b00: q <= q << 1;      // Shift left by 1 bit
				2'b01: q <= q << 8;      // Shift left by 8 bits
				2'b10: q <= $signed(q) >>> 1; // Arithmetic right shift by 1 bit
				2'b11: q <= $signed(q) >>> 8; // Arithmetic right shift by 8 bits
			endcase
		end
	end
endmodule

module top_module(
	input clk,
	input load,
	input ena,
	input [1:0] amount,
	input [63:0] data,
	output reg [63:0] q);

	always @(posedge clk) begin
		if (load) begin
			q <= data;
		end else if (ena) begin
			case (amount)
				2'b00: q <= q << 1;      // Shift left by 1 bit
				2'b01: q <= q << 8;      // Shift left by 8 bits
				2'b10: q <= $signed(q) >>> 1; // Arithmetic right shift by 1 bit
				2'b11: q <= $signed(q) >>> 8; // Arithmetic right shift by 8 bits
				default: q <= q;         // No change
			endcase
		end
	end

endmodule

module top_module(
    input clk,
    input load,
    input ena,
    input [1:0] amount,
    input [63:0] data,
    output reg [63:0] q
);

    always @(posedge clk) begin
        if (load) begin
            q <= data;
        end else if (ena) begin
            case (amount)
                2'b00: q <= {q[62:0], 1'b0}; // Shift left by 1
                2'b01: q <= {q[55:0], 8'b0}; // Shift left by 8
                2'b10: q <= {q[62], q[62:1]}; // Arithmetic shift right by 1
                2'b11: q <= {q[63], q[62:8]}; // Arithmetic shift right by 8
                default: q <= q; // No change
            endcase
        end
    end

endmodule

module top_module(
    input clk,
    input load,
    input ena,
    input [1:0] amount,
    input [63:0] data,
    output reg [63:0] q
);

    always @(posedge clk) begin
        if (load) begin
            q <= data;
        end else if (ena) begin
            case (amount)
                2'b00: q <= q << 1;     // Shift left by 1 bit
                2'b01: q <= q << 8;     // Shift left by 8 bits
                2'b10: q <= {q[62:0], q[63]}; // Arithmetic right shift by 1 bit
                2'b11: q <= {q[55:0], q[63:56]}; // Arithmetic right shift by 8 bits
                default: q <= q;        // No change
            endcase
        end
    end

endmodule

module top_module(
    input clk,
    input load,
    input ena,
    input [1:0] amount,
    input [63:0] data,
    output reg [63:0] q
);

always @(posedge clk) begin
    if (load) begin
        q <= data;
    end else if (ena) begin
        case (amount)
            2'b00: q <= q << 1;        // Shift left by 1 bit
            2'b01: q <= q << 8;        // Shift left by 8 bits
            2'b10: q <= $signed(q) >>> 1; // Arithmetic right shift by 1 bit
            2'b11: q <= $signed(q) >>> 8; // Arithmetic right shift by 8 bits
            default: q <= q;           // No shift
        endcase
    end
end

endmodule

module top_module(
    input clk,
    input load,
    input ena,
    input [1:0] amount,
    input [63:0] data,
    output reg [63:0] q);

    always @(posedge clk) begin
        if (load) begin
            q <= data;
        end else if (ena) begin
            case (amount)
                2'b00: q <= {q[62:0], 1'b0};       // Shift left by 1 bit
                2'b01: q <= {q[55:0], 8'b0};       // Shift left by 8 bits
                2'b10: q <= {q[63], q[63:1]};      // Shift right by 1 bit (arithmetic)
                2'b11: q <= {q[63], q[63:8]};      // Shift right by 8 bits (arithmetic)
                default: q <= q;                   // Hold current value
            endcase
        end
    end
endmodule

module top_module(
	input clk,
	input load,
	input ena,
	input [1:0] amount,
	input [63:0] data,
	output reg [63:0] q);

	always @(posedge clk) begin
		if (load) begin
			q <= data;
		end else if (ena) begin
			case (amount)
				2'b00: q <= q << 1;       // Shift left by 1
				2'b01: q <= q << 8;       // Shift left by 8
				2'b10: q <= {q[62:0], q[63]}; // Arithmetic right shift by 1
				2'b11: q <= {q[55:0], q[63:56]}; // Arithmetic right shift by 8
			endcase
		end
	end
endmodule

module top_module(
	input clk,
	input load,
	input ena,
	input [1:0] amount,
	input [63:0] data,
	output reg [63:0] q);

	always @(posedge clk) begin
		if (load) begin
			q <= data;
		end else if (ena) begin
			case (amount)
				2'b00: q <= q << 1;     // Shift left by 1 bit
				2'b01: q <= q << 8;     // Shift left by 8 bits
				2'b10: q <= {q[63], q[63:1]}; // Arithmetic right shift by 1 bit
				2'b11: q <= {q[63:8], q[63]}; // Arithmetic right shift by 8 bits
			endcase
		end
	end
endmodule


module top_module (
    input clk,
    input aresetn,
    input x,
    output reg z
);

    // State encoding
    typedef enum reg [1:0] {S0, S1, S2} state_t;
    state_t state, next_state;

    always @(posedge clk or negedge aresetn) begin
        if (!aresetn)
            state <= S0;
        else
            state <= next_state;
    end

    always @(*) begin
        // Default assignments
        next_state = state;
        z = 1'b0;

        case (state)
            S0: begin
                if (x) next_state = S1;
            end
            S1: begin
                if (~x) next_state = S2;
                else next_state = S1; // Stay in S1 if x is 1
            end
            S2: begin
                if (x) begin
                    next_state = S1; // Go back to S1
                    z = 1'b1; // Detected "101"
                end else begin
                    next_state = S0; // Go back to S0
                end
            end
        endcase
    end

endmodule

module top_module (
    input clk,
    input aresetn,
    input x,
    output reg z
);
    // State encoding
    parameter S0 = 2'b00, // initial state
              S1 = 2'b01, // after receiving '1'
              S2 = 2'b10; // after receiving '10'

    reg [1:0] state, next_state;

    // Asynchronous reset and state update
    always @(posedge clk or negedge aresetn) begin
        if (!aresetn)
            state <= S0;
        else
            state <= next_state;
    end

    // Next state logic
    always @(*) begin
        case (state)
            S0: begin
                if (x)
                    next_state = S1;
                else
                    next_state = S0;
                z = 1'b0;
            end
            S1: begin
                if (x)
                    next_state = S1; // stay in S1 on '1'
                else
                    next_state = S2; // move to S2 on '0'
                z = 1'b0;
            end
            S2: begin
                if (x) begin
                    next_state = S1; // move to S1 on '1'
                    z = 1'b1; // '101' detected
                end
                else begin
                    next_state = S0; // move back to S0 on '0'
                    z = 1'b0;
                end
            end
            default: begin
                next_state = S0;
                z = 1'b0;
            end
        endcase
    end
endmodule

module top_module (
    input clk,
    input aresetn,
    input x,
    output reg z
);
    typedef enum reg [1:0] {S0, S1, S2} state_t;
    state_t state, next_state;

    always @(posedge clk or negedge aresetn) begin
        if (!aresetn)
            state <= S0;
        else
            state <= next_state;
    end

    always @* begin
        case (state)
            S0: begin
                z = 0;
                if (x) next_state = S1;
                else next_state = S0;
            end
            S1: begin
                z = 0;
                if (x) next_state = S1; // Stay in S1 if x is 1
                else next_state = S2;   // Move to S2 if x is 0
            end
            S2: begin
                z = 0;
                if (x) begin
                    z = 1;        // Detect "101"
                    next_state = S1; // Overlap recognized
                end else
                    next_state = S0; // Reset to S0 if x is 0
            end
            default: begin
                z = 0;
                next_state = S0; // Default to S0
            end
        endcase
    end
endmodule

module top_module (
	input clk,
	input aresetn,
	input x,
	output reg z
);

	typedef enum reg [1:0] {S0, S1, S2} state_t;
	state_t state, next_state;

	always @(posedge clk or negedge aresetn) begin
		if (!aresetn)
			state <= S0;
		else
			state <= next_state;
	end

	always @(state or x) begin
		z = 0; // Default output
		case (state)
			S0: begin
				if (x)
					next_state = S1;
				else
					next_state = S0;
			end
			S1: begin
				if (x)
					next_state = S1;
				else
					next_state = S2;
			end
			S2: begin
				if (x) begin
					next_state = S1;
					z = 1; // Output when "101" is detected
				end else
					next_state = S0;
			end
		endcase
	end

endmodule

module top_module (
    input clk,
    input aresetn,
    input x,
    output reg z
);

    // State encoding
    typedef enum reg [1:0] {
        S0 = 2'b00,  // Initial state
        S1 = 2'b01,  // Detected '1'
        S2 = 2'b10   // Detected '10'
    } state_t;

    state_t current_state, next_state;

    always @(posedge clk or negedge aresetn) begin
        if (!aresetn)
            current_state <= S0;
        else
            current_state <= next_state;
    end

    always @(current_state or x) begin
        case (current_state)
            S0: begin
                z = 1'b0;
                if (x) next_state = S1;
                else next_state = S0;
            end
            S1: begin
                z = 1'b0;
                if (x) next_state = S1; // '1' detected, stay in S1
                else next_state = S2;   // '0', go to S2
            end
            S2: begin
                z = 1'b0;
                if (x) begin
                    z = 1'b1; // '101' detected
                    next_state = S1; // Go back to S1 after detecting '101'
                end else
                    next_state = S0; // Go back to S0 if '0'
            end
            default: begin
                z = 1'b0;
                next_state = S0; // Default state
            end
        endcase
    end

endmodule

module top_module (
    input clk,
    input aresetn,
    input x,
    output reg z
);

    // State encoding
    typedef enum reg [1:0] {
        S0 = 2'b00,  // Initial state
        S1 = 2'b01,  // '1' detected
        S2 = 2'b10   // '10' detected
    } state_t;

    state_t current_state, next_state;

    always @(posedge clk or negedge aresetn) begin
        if (!aresetn)
            current_state <= S0;
        else
            current_state <= next_state;
    end

    always @(*) begin
        case (current_state)
            S0: begin
                z = 0;
                if (x)
                    next_state = S1;
                else
                    next_state = S0;
            end
            S1: begin
                z = 0;
                if (~x)
                    next_state = S2;
                else
                    next_state = S1;
            end
            S2: begin
                z = 0;
                if (x) begin
                    z = 1; // Output high when "101" is detected
                    next_state = S1; // Move to S1 to allow for overlapping sequences
                end else begin
                    next_state = S0;
                end
            end
            default: begin
                next_state = S0;
                z = 0;
            end
        endcase
    end
endmodule

module top_module (
	input clk,
	input aresetn,
	input x,
	output reg z
);

	typedef enum reg [1:0] {S0, S1, S2} state_t;
	state_t state, next_state;

	always @(posedge clk or negedge aresetn) begin
		if (!aresetn)
			state <= S0;
		else
			state <= next_state;
	end

	always @(*) begin
		next_state = state;
		z = 0;
		case (state)
			S0: begin
				if (x)
					next_state = S1;
			end
			S1: begin
				if (!x)
					next_state = S2;
				else
					next_state = S1; // Remain in S1 if x is still 1
			end
			S2: begin
				if (x) begin
					next_state = S1;
					z = 1; // Detected "101"
				end else begin
					next_state = S0; // Return to S0 if x is 0
				end
			end
		endcase
	end

endmodule

module top_module (
    input clk,
    input aresetn,
    input x,
    output reg z
);

    typedef enum reg [1:0] {
        S0 = 2'b00,
        S1 = 2'b01,
        S2 = 2'b10
    } state_type;

    state_type state, next_state;

    always @(posedge clk or negedge aresetn) begin
        if (!aresetn)
            state <= S0;
        else
            state <= next_state;
    end

    always @* begin
        case (state)
            S0: begin
                z = 1'b0;
                if (x)
                    next_state = S1;
                else
                    next_state = S0;
            end
            S1: begin
                z = 1'b0;
                if (x)
                    next_state = S1;
                else
                    next_state = S2;
            end
            S2: begin
                z = 1'b1;
                if (x)
                    next_state = S1;
                else
                    next_state = S0;
            end
            default: begin
                z = 1'b0;
                next_state = S0;
            end
        endcase
    end
endmodule

module top_module (
    input clk,
    input aresetn,
    input x,
    output reg z
);

    // State definitions
    typedef enum logic [1:0] {
        S0 = 2'b00, // Initial state
        S1 = 2'b01, // State after '1'
        S2 = 2'b10  // State after '10'
    } state_t;

    state_t state, next_state;

    // Asynchronous reset and state transition based on clock
    always_ff @(posedge clk or negedge aresetn) begin
        if (!aresetn)
            state <= S0; // Reset to initial state
        else
            state <= next_state; // Transition to next state
    end

    // Next state logic
    always_comb begin
        z = 1'b0; // Default output
        case (state)
            S0: begin
                if (x) next_state = S1; // Input '1' leads to state S1
                else next_state = S0;   // Stay in state S0
            end
            S1: begin
                if (~x) next_state = S2; // Input '0' leads to state S2
                else next_state = S1;    // Stay in state S1
            end
            S2: begin
                if (x) begin
                    z = 1'b1;            // Output '1' when detecting '101'
                    next_state = S1;     // Input '1' leads back to state S1
                end else begin
                    next_state = S0;     // Input '0' resets to state S0
                end
            end
            default: next_state = S0; // Default state on undefined
        endcase
    end

endmodule

module top_module (
    input clk,
    input aresetn,
    input x,
    output reg z
);

    // State Encoding
    parameter S0 = 2'b00, // Initial state
              S1 = 2'b01, // After '1'
              S2 = 2'b10; // After '10'

    reg [1:0] state, next_state;

    // State Transition
    always @(posedge clk or negedge aresetn) begin
        if (!aresetn)
            state <= S0;
        else
            state <= next_state;
    end

    // Next State Logic
    always @(*) begin
        case (state)
            S0: begin
                if (x) next_state = S1; // Input '1', go to S1
                else next_state = S0;   // Stay in S0
            end
            S1: begin
                if (x) next_state = S1; // Input '1', stay in S1
                else next_state = S2;   // Input '0', go to S2
            end
            S2: begin
                if (x) begin
                    next_state = S1;    // Input '1', go to S1
                    z = 1'b1;           // Sequence '101' detected
                end else begin
                    next_state = S0;    // Input '0', go back to S0
                    z = 1'b0;           // No sequence detected
                end
            end
            default: next_state = S0;
        endcase
    end

    // Output Logic
    always @(posedge clk or negedge aresetn) begin
        if (!aresetn)
            z <= 1'b0; // Reset output
        else if (state == S2 && x)
            z <= 1'b1; // Set output when sequence is recognized
        else
            z <= z;    // Retain previous output
    end

endmodule

module top_module (
    input clk,
    input aresetn,
    input x,
    output reg z
);

    typedef enum logic [1:0] {
        S0, // Initial state
        S1, // After receiving '1'
        S2  // After receiving '10'
    } state_t;

    state_t state, next_state;

    always_ff @(posedge clk or negedge aresetn) begin
        if (!aresetn)
            state <= S0;
        else
            state <= next_state;
    end

    always_comb begin
        next_state = state;
        z = 1'b0; // Default output

        case (state)
            S0: begin
                if (x) next_state = S1;
            end
            S1: begin
                if (!x) next_state = S2;
                else next_state = S1; // Stay in S1 if x is 1
            end
            S2: begin
                if (x) begin
                    next_state = S1;
                    z = 1'b1; // Output when '101' is detected
                end else begin
                    next_state = S0;
                end
            end
        endcase
    end
endmodule

module top_module (
	input clk,
	input aresetn,
	input x,
	output reg z
);

	typedef enum reg [1:0] {S0, S1, S2} state_t;
	state_t state, next_state;

	always @(posedge clk or negedge aresetn) begin
		if (!aresetn)
			state <= S0;
		else
			state <= next_state;
	end

	always @(*) begin
		next_state = state; // Default to stay in current state
		z = 1'b0; // Default output

		case (state)
			S0: begin
				if (x)
					next_state = S1;
			end
			S1: begin
				if (!x)
					next_state = S2;
				else
					next_state = S1; // remain in S1 if x is still 1
			end
			S2: begin
				if (x) begin
					next_state = S1;
					z = 1'b1; // Output high for "101" detected
				end else begin
					next_state = S0; // Go back to S0
				end
			end
		endcase
	end
endmodule

module top_module (
    input clk,
    input aresetn,
    input x,
    output reg z
);

    reg [1:0] state, next_state;

    parameter S0 = 2'b00,  // Initial state
              S1 = 2'b01,  // State after '1'
              S2 = 2'b10;  // State after '10'

    always @(posedge clk or negedge aresetn) begin
        if (!aresetn)
            state <= S0;
        else
            state <= next_state;
    end

    always @(*) begin
        case (state)
            S0: begin
                z = 1'b0;
                if (x)
                    next_state = S1; // Move to S1 on '1'
                else
                    next_state = S0;
            end
            S1: begin
                z = 1'b0;
                if (x)
                    next_state = S1; // Stay in S1 on '1'
                else
                    next_state = S2; // Move to S2 on '0'
            end
            S2: begin
                z = 1'b0;
                if (x)
                    next_state = S1; // Move back to S1 on '1'
                else
                    next_state = S0; // Move back to S0 on '0'
            end
            default: begin
                z = 1'b0;
                next_state = S0; // Default state
            end
        endcase

        // Output logic
        if (state == S2 && x)
            z = 1'b1; // Assert z when reaching S2 and input is '1' (recognized "101")
    end

endmodule

module top_module (
	input clk,
	input aresetn,
	input x,
	output reg z
);

	// State encoding
	localparam S0 = 2'b00, // Initial state
	           S1 = 2'b01, // '1' seen
	           S2 = 2'b10; // '10' seen

	reg [1:0] state, next_state;

	// Combinational logic for next state and output
	always @(*) begin
		case (state)
			S0: begin
				if (x) begin
					next_state = S1;
					z = 0;
				end else begin
					next_state = S0;
					z = 0;
				end
			end
			S1: begin
				if (x) begin
					next_state = S1;
					z = 0;
				end else begin
					next_state = S2;
					z = 0;
				end
			end
			S2: begin
				if (x) begin
					next_state = S1;
					z = 1; // Sequence "101" detected
				end else begin
					next_state = S0;
					z = 0;
				end
			end
			default: begin
				next_state = S0;
				z = 0;
			end
		endcase
	end

	// Sequential logic for state transition
	always @(posedge clk or negedge aresetn) begin
		if (!aresetn)
			state <= S0; // Reset to initial state
		else
			state <= next_state; // Transition to next state
	end

endmodule

module top_module (
	input clk,
	input aresetn,
	input x,
	output reg z
);

	reg [1:0] state, next_state;
	parameter S0 = 2'b00, S1 = 2'b01, S2 = 2'b10;

	always @(posedge clk or negedge aresetn) begin
		if (!aresetn)
			state <= S0;
		else
			state <= next_state;
	end

	always @(*) begin
		case (state)
			S0: begin
				z = 0;
				if (x) next_state = S1;
				else next_state = S0;
			end
			S1: begin
				z = 0;
				if (x) next_state = S2;
				else next_state = S0;
			end
			S2: begin
				z = 0;
				if (x) begin
					z = 1;
					next_state = S2;
				end else
					next_state = S0;
			end
			default: begin
				z = 0;
				next_state = S0;
			end
		endcase
	end

endmodule

module top_module (
    input clk,
    input aresetn,
    input x,
    output reg z
);

    typedef enum reg [1:0] {
        S0 = 2'b00,
        S1 = 2'b01,
        S2 = 2'b10
    } state_t;

    state_t state, next_state;

    always @(posedge clk or negedge aresetn) begin
        if (!aresetn)
            state <= S0;
        else
            state <= next_state;
    end

    always @(*) begin
        case(state)
            S0: begin
                z = 0;
                if (x)
                    next_state = S1;
                else
                    next_state = S0;
            end
            S1: begin
                z = 0;
                if (!x)
                    next_state = S2;
                else
                    next_state = S1;
            end
            S2: begin
                if (x) begin
                    z = 1;
                    next_state = S1;
                end else begin
                    z = 0;
                    next_state = S0;
                end
            end
            default: begin
                z = 0;
                next_state = S0;
            end
        endcase
    end

endmodule

module top_module (
    input clk,
    input aresetn,
    input x,
    output reg z
);

    typedef enum reg [1:0] {S0, S1, S2} state_t;
    state_t current_state, next_state;

    always @(posedge clk or negedge aresetn) begin
        if (!aresetn)
            current_state <= S0;
        else
            current_state <= next_state;
    end

    always @(*) begin
        case (current_state)
            S0: begin
                z = 0;
                if (x)
                    next_state = S1;
                else
                    next_state = S0;
            end
            S1: begin
                z = 0;
                if (x)
                    next_state = S2;
                else
                    next_state = S0;
            end
            S2: begin
                z = 1;
                if (x)
                    next_state = S1;
                else
                    next_state = S0;
            end
            default: begin
                z = 0;
                next_state = S0;
            end
        endcase
    end
endmodule

module top_module (
	input clk,
	input aresetn,
	input x,
	output reg z
);

	reg [1:0] state, next_state;

	localparam S0 = 2'b00, // Initial state
			   S1 = 2'b01, // State after receiving '1'
			   S2 = 2'b10; // State after receiving '10'

	always @(posedge clk or negedge aresetn) begin
		if (!aresetn)
			state <= S0;
		else
			state <= next_state;
	end

	always @(*) begin
		case (state)
			S0: begin
				z = 0;
				if (x)
					next_state = S1; // Move to S1 on '1'
				else
					next_state = S0; // Stay in S0
			end
			S1: begin
				z = 0;
				if (x)
					next_state = S1; // Stay in S1
				else
					next_state = S2; // Move to S2 on '0'
			end
			S2: begin
				if (x) begin
					z = 1; // Output high on '101'
					next_state = S1; // Move back to S1 on '1'
				end else begin
					z = 0;
					next_state = S0; // Move back to S0 on '0'
				end
			end
			default: begin
				z = 0;
				next_state = S0; // Default to S0
			end
		endcase
	end
endmodule

module top_module (
    input clk,
    input aresetn,
    input x,
    output reg z
);

    typedef enum logic [1:0] {
        S0, // Initial state
        S1, // State after '1'
        S2  // State after '10'
    } state_t;

    state_t current_state, next_state;

    always_ff @(posedge clk or negedge aresetn) begin
        if (!aresetn)
            current_state <= S0;
        else
            current_state <= next_state;
    end

    always_ff @(current_state or x) begin
        z = 0; // Default output
        case (current_state)
            S0: begin
                if (x)
                    next_state = S1; // Move to S1 on '1'
                else
                    next_state = S0; // Stay in S0 on '0'
            end
            S1: begin
                if (x)
                    next_state = S1; // Stay in S1 on '1'
                else
                    next_state = S2; // Move to S2 on '0'
            end
            S2: begin
                if (x) begin
                    z = 1;           // Output '1' for detected "101"
                    next_state = S1; // Move back to S1 on '1' (overlap allowed)
                end else
                    next_state = S0; // Move back to S0 on '0'
            end
            default: next_state = S0; // Default state
        endcase
    end

endmodule

module top_module (
    input clk,
    input aresetn,
    input x,
    output reg z
);

    typedef enum reg [1:0] {S0, S1, S2} state_t;
    state_t current_state, next_state;

    always @(posedge clk or negedge aresetn) begin
        if (!aresetn)
            current_state <= S0;
        else
            current_state <= next_state;
    end

    always @(*) begin
        z = 1'b0; // Default output
        case (current_state)
            S0: begin
                if (x)
                    next_state = S1;
                else
                    next_state = S0;
            end
            S1: begin
                if (x)
                    next_state = S2;
                else
                    next_state = S0;
            end
            S2: begin
                if (x) begin
                    next_state = S1;
                    z = 1'b1; // "101" detected
                end else begin
                    next_state = S0;
                    z = 1'b1; // "101" detected
                end
            end
            default: next_state = S0;
        endcase
    end

endmodule