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

    always @(*) begin
        case (y)
            3'b000: Y2 = 1'b0; // State A
            3'b001: Y2 = w;    // State B
            3'b010: Y2 = 1'b0; // State C
            3'b011: Y2 = 1'b0; // State D
            3'b100: Y2 = 1'b1; // State E
            3'b101: Y2 = 1'b1; // 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 = 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 = 1;  // State E
            3'b101: Y2 = (w == 0) ? 0 : 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 = 0; // State A
            3'b001: Y2 = ~w; // State B
            3'b010: Y2 = 1; // State C
            3'b011: Y2 = 1; // State D
            3'b100: Y2 = 1; // State E
            3'b101: Y2 = 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 = 1'b0; // A
            3'b001: Y2 = w;    // B
            3'b010: Y2 = 1'b1; // C
            3'b011: Y2 = 1'b0; // D
            3'b100: Y2 = 1'b1; // E
            3'b101: Y2 = 1'b0; // F
            default: Y2 = 1'b0; // default case for safety
        endcase
    end

endmodule

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

    always @(*) begin
        case (y)
            3'b000: Y2 = 0;  // A
            3'b001: Y2 = w ? 1 : 0;  // B
            3'b010: Y2 = 1;  // C
            3'b011: Y2 = 1;  // D
            3'b100: Y2 = 1;  // E
            3'b101: Y2 = 0;  // 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 = 1'b0; // State A
            3'b001: Y2 = w;    // State B
            3'b010: Y2 = 1'b0; // State C
            3'b011: Y2 = 1'b0; // State D
            3'b100: Y2 = 1'b1; // State E
            3'b101: Y2 = 1'b1; // State F
            default: Y2 = 1'b0; // Default case (should not happen)
        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 = 0; // State B
			3'b010: Y2 = 0; // State C
			3'b011: Y2 = w; // State D
			3'b100: Y2 = 1; // State E
			3'b101: Y2 = 1; // State F
			default: Y2 = 0; // Default case, in case of invalid state
		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; // State B
			3'b010: Y2 = w ? 1 : 0; // State C
			3'b011: Y2 = w ? 0 : 1; // State D
			3'b100: Y2 = 1;         // State E
			3'b101: Y2 = 1;         // State F
			default: Y2 = 0;        // Default case for uninitialized states
		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; // State B
            3'b010: Y2 = 1; // State C
            3'b011: Y2 = 0; // State D
            3'b100: Y2 = 1; // State E
            3'b101: Y2 = 1; // 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 = 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 : 0; // State D
            3'b100: Y2 = 1; // State E
            3'b101: Y2 = (w == 0) ? 0 : 1; // 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 = 0; // State A
            3'b001: Y2 = (w == 0) ? 0 : 1; // State B
            3'b010: Y2 = (w == 0) ? 1 : 0; // State C
            3'b011: Y2 = (w == 0) ? 1 : 0; // State D
            3'b100: Y2 = 1; // State E
            3'b101: Y2 = (w == 0) ? 0 : 0; // State F
            default: Y2 = 0; // Default case for safety
        endcase
    end

endmodule

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

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

    // Using assign statement
    assign out_assign = a & b;

    // Using combinational always block
    always @(*) begin
        out_alwaysblock = a & b;
    end

endmodule

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

    // AND gate using assign statement
    assign out_assign = a & b;

    // AND gate using combinational always block
    always @(*) begin
        out_alwaysblock = a & b;
    end

endmodule

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

    // Using assign statement for AND operation
    assign out_assign = a & b;

    // Using combinational always block for AND operation
    always @(*) begin
        out_alwaysblock = a & b;
    end

endmodule

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

    // Implement AND gate using assign statement
    assign out_assign = a & b;

    // Implement AND gate using always block
    always @(*) begin
        out_alwaysblock = a & b;
    end

endmodule

module top_module(
    input a,
    input b,
    output out_assign,
    output reg out_alwaysblock
);
    // AND gate using assign statement
    assign out_assign = a & b;

    // AND gate using always block
    always @(*) begin
        out_alwaysblock = a & b;
    end
endmodule

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

    // AND gate using an assign statement
    assign out_assign = a & b;

    // AND gate using a combinational always block
    always @(*) begin
        out_alwaysblock = a & b;
    end

endmodule

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

    // Using assign statement
    assign out_assign = a & b;

    // Using a combinational always block
    always @(*) begin
        out_alwaysblock = a & b;
    end

endmodule

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

    // Using assign statement to implement AND gate
    assign out_assign = a & b;

    // Using always block to implement AND gate
    always @(*) begin
        out_alwaysblock = a & b;
    end

endmodule

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

    // Using an assign statement to implement an AND gate
    assign out_assign = a & b;

    // Using a combinational always block to implement an AND gate
    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
);

    // Using the assign statement
    assign out_assign = a & b;

    // Using the combinational always block
    always @(*) begin
        out_alwaysblock = a & b;
    end

endmodule


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

module top_module(
    output zero);

    assign zero = 1'b0;

endmodule

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


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

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

endmodule

module top_module (
    input clk,
    input a,
    output reg q
);
    always @(posedge clk) begin
        if (a == 1) begin
            q <= 0;
        end else begin
            q <= 1;
        end
    end
endmodule

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

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

endmodule

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

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

endmodule

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

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

endmodule

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

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

endmodule

module top_module (
    input clk,
    input a,
    output reg q
);
    always @(posedge clk) begin
        if (a == 1'b1) begin
            q <= 1'b0;
        end else begin
            q <= 1'b1;
        end
    end
endmodule

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

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

endmodule


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

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

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

    always @(*) begin
        case (state)
            S0: begin
                z = x;     // Initial state to pass input directly
                if (x == 1'b1)
                    next_state = S1;
                else
                    next_state = S0;
            end

            S1: begin
                z = ~x;    // Inverting the input
                if (x == 1'b1)
                    next_state = S2;
                else
                    next_state = S1;
            end

            S2: begin
                z = ~x;    // Continue complementing and adding one
                next_state = S2;
            end

            default: begin
                z = x;    // Default to avoid latches
                next_state = S0;
            end
        endcase
    end

endmodule

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

    typedef enum reg [1:0] {
        IDLE = 2'b00,
        FLIP = 2'b01,
        PASS = 2'b10
    } state_t;

    state_t current_state, next_state;

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

    always @(*) begin
        case (current_state)
            IDLE: begin
                if (x == 1'b1) begin
                    next_state = FLIP;
                    z = 1'b1;
                end else begin
                    next_state = PASS;
                    z = 1'b0;
                end
            end

            FLIP: begin
                next_state = FLIP;
                z = ~x;
            end

            PASS: begin
                next_state = PASS;
                z = x;
            end

            default: begin
                next_state = IDLE;
                z = 1'b0;
            end
        endcase
    end

endmodule

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

    // State encoding
    typedef enum reg [1:0] {
        IDLE = 2'b00,
        FLIP = 2'b01,
        PASS = 2'b10
    } state_t;

    state_t state, next_state;
    reg flip;

    always @(posedge clk or posedge areset) begin
        if (areset) begin
            state <= IDLE;
            z <= 0;
            flip <= 0;
        end else begin
            state <= next_state;
            if (state == FLIP) begin
                z <= ~x;
                flip <= 1;
            end else if (state == PASS && flip) begin
                z <= ~x;
            end else begin
                z <= x;
            end
        end
    end

    always @(*) begin
        case (state)
            IDLE: begin
                if (~areset)
                    next_state = FLIP;
                else
                    next_state = IDLE;
            end
            FLIP: begin
                next_state = PASS;
            end
            PASS: begin
                next_state = PASS;
            end
            default: next_state = IDLE;
        endcase
    end

endmodule

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

    // State encoding
    typedef enum reg [1:0] {
        S_IDLE = 2'b00,
        S_INVERT = 2'b01,
        S_PASS = 2'b10
    } state_t;

    state_t state, next_state;

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

    always @(*) begin
        case (state)
            S_IDLE: begin
                z = 0;
                if (x == 1)
                    next_state = S_INVERT;
                else
                    next_state = S_IDLE;
            end
            S_INVERT: begin
                z = ~x;
                next_state = S_PASS;
            end
            S_PASS: begin
                z = x;
                next_state = S_PASS;
            end
            default: begin
                z = 0;
                next_state = S_IDLE;
            end
        endcase
    end

endmodule

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

    typedef enum reg [1:0] {
        IDLE = 2'b00,       // State for waiting
        ONE = 2'b01,        // State when reading a one
        FLIP = 2'b10        // State for flipping bits
    } state_t;

    state_t state, next_state;

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

    always @(*) begin
        case (state)
            IDLE: begin
                z = x; // As long as Reset is asserted, we don't change the output
                if (x) // Transition on seeing first 1
                    next_state = ONE;
                else // If initial bits are 0, stay IDLE
                    next_state = IDLE;
            end
            ONE: begin
                z = ~x; // Flip the input x for 2's complement
                next_state = FLIP; // Move to FLIP state after flipping first bit
            end
            FLIP: begin
                z = ~x; // Continue flipping subsequent bits
                next_state = FLIP; // Remain in FLIP state
            end
            default: begin
                next_state = IDLE; // Default to IDLE to avoid latches
            end
        endcase
    end

endmodule

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

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

    always @(posedge clk or posedge areset) begin
        if (areset) begin
            state <= S0;
            z <= 0;
        end else begin
            state <= next_state;
            z <= (state == S1) ? ~x : x;
        end
    end

    always @(*) begin
        case (state)
            S0: next_state = (x == 1) ? S1 : S0;
            S1: next_state = S1;
            default: next_state = S0;
        endcase
    end

endmodule

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

    // State encoding
    typedef enum reg [1:0] {
        IDLE      = 2'b00,
        FETCH     = 2'b01,
        ONE       = 2'b10,
        COMPLEMENT = 2'b11
    } state_t;

    state_t current_state, next_state;
    reg carry;

    always @(posedge clk or posedge areset) begin
        if (areset) begin
            current_state <= IDLE;
            z <= 0;
            carry <= 0;
        end else begin
            current_state <= next_state;
            case (current_state)
                FETCH: begin
                    z <= x ^ carry;
                    carry <= x & carry;
                end
                ONE: begin
                    z <= x;
                end
                // For other states, we don't need to update z
            endcase
        end
    end

    always @(*) begin
        case (current_state)
            IDLE: begin
                if (!areset)
                    next_state = FETCH;
                else
                    next_state = IDLE;
            end
            FETCH: begin
                if (x)
                    next_state = COMPLEMENT;
                else
                    next_state = ONE;
            end
            ONE: begin
                next_state = IDLE;
            end
            COMPLEMENT: begin
                next_state = IDLE;
            end
            default: next_state = IDLE;
        endcase
    end

endmodule

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

    typedef enum reg [1:0] {S_START = 2'b00, S_ADD_1 = 2'b01, S_PASS = 2'b10} state_t;
    state_t state, next_state;

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

    always @(*) begin
        case (state)
            S_START: begin
                z = ~x; // Start by inverting bits
                if (~x)
                    next_state = S_ADD_1;
                else
                    next_state = S_PASS;
            end
            S_ADD_1: begin
                // Adding 1 to complete 2's complement
                z = x;
                if (x)
                    next_state = S_PASS;
                else
                    next_state = S_ADD_1;
            end
            S_PASS: begin
                z = x;
                next_state = S_PASS; // Keep passing the bits as they are
            end
            default: next_state = S_START;
        endcase
    end

endmodule

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

    typedef enum logic [1:0] {
        ZERO = 2'b00,
        ONE = 2'b01,
        INVERT = 2'b10
    } state_t;

    state_t state, next_state;

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

    always_comb begin
        case(state)
            ZERO: next_state = x ? ONE : ZERO;
            ONE: next_state = x ? ONE : INVERT;
            INVERT: next_state = x ? ONE : INVERT;
            default: next_state = ZERO;
        endcase
    end

    always_comb begin
        case(state)
            ZERO: z = x;
            ONE: z = ~x;
            INVERT: z = ~x;
            default: z = 1'b0;
        endcase
    end

endmodule

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

    // Define states
    typedef enum logic [1:0] {S_IDLE, S_ONES, S_START_TWOS} state_t;
    state_t state, next_state;

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

    // Next state logic and output logic
    always_comb begin
        z = 0;
        case (state)
            S_IDLE: begin
                if (!areset) begin
                    next_state = S_ONES;
                    z = x;
                end else begin
                    next_state = S_IDLE;
                end
            end
            S_ONES: begin
                if (x == 0) begin
                    next_state = S_ONES;
                    z = 1;
                end else begin
                    next_state = S_START_TWOS;
                    z = 0;
                end
            end
            S_START_TWOS: begin
                next_state = S_START_TWOS;
                z = ~x;
            end
        endcase
    end

endmodule

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

    typedef enum logic [1:0] {
        STATE_NONCOMP = 2'b00,
        STATE_ZERO = 2'b01,
        STATE_ONE = 2'b11
    } state_type;

    state_type current_state, next_state;

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

    always_comb begin
        case (current_state)
            STATE_NONCOMP: begin
                z = x;
                next_state = x ? STATE_NONCOMP : STATE_ZERO;
            end
            STATE_ZERO: begin
                z = ~x;
                next_state = x ? STATE_ONE : STATE_ZERO;
            end
            STATE_ONE: begin
                z = ~x;
                next_state = STATE_ONE;
            end
            default: begin
                z = 0;
                next_state = STATE_NONCOMP;
            end
        endcase
    end

endmodule

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

    typedef enum logic [1:0] {
        S0_ZERO = 2'b00, // State 0: Zero state, no past 1 encountered
        S1_ONE = 2'b01,  // State 1: A 1 has been encountered
        S1_ZERO = 2'b10  // State 2: Emitting zeroes after the first 1
    } state_t;

    state_t current_state, next_state;

    always_ff @(posedge clk or posedge areset) begin
        if (areset)
            current_state <= S0_ZERO;
        else
            current_state <= next_state;
    end

    always_comb begin
        case (current_state)
            S0_ZERO: begin
                if (x == 1) begin
                    next_state = S1_ONE;
                end else begin
                    next_state = S0_ZERO;
                end
                z = x;
            end

            S1_ONE: begin
                z = ~x;
                if (x == 1) begin
                    next_state = S1_ONE;
                end else begin
                    next_state = S1_ZERO;
                end
            end

            S1_ZERO: begin
                z = ~x;
                if (x == 1) begin
                    next_state = S1_ONE;
                end
            end

            default: begin
                next_state = S0_ZERO;
                z = 1'b0;
            end
        endcase
    end

endmodule

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

    // State encoding
    typedef enum logic [1:0] {
        IDLE = 2'b00,
        PASS_THROUGH = 2'b01,
        FLIP_BITS = 2'b10,
        ADD_ONE = 2'b11
    } state_t;

    state_t state, next_state;
    reg carry; // To add one in 2's complement

    // State transition logic
    always @(posedge clk or posedge areset) begin
        if (areset) begin
            state <= IDLE;
            z <= 0;
            carry <= 0;
        end else begin
            state <= next_state;
        end
    end

    // Next state and output logic
    always @(*) begin
        case (state)
            IDLE: begin
                z = x; // Initial bit pass-through
                next_state = PASS_THROUGH;
                carry = 0;
            end
            PASS_THROUGH: begin
                z = x; // Continues to pass through the LSB
                next_state = (x == 0) ? FLIP_BITS : PASS_THROUGH;
            end
            FLIP_BITS: begin
                z = ~x; // Flipping each bit
                carry = 1; // Start adding one
                next_state = ADD_ONE;
            end
            ADD_ONE: begin
                z = ~x ^ carry; // Adds carry to flipped bit
                carry = (~x & carry) | z & carry; // Carry for next stage
                next_state = (carry == 0) ? PASS_THROUGH : ADD_ONE;
            end
            default: begin
                next_state = IDLE;
            end
        endcase
    end

endmodule

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

    typedef enum logic [1:0] {
        IDLE = 2'b00,
        COPY = 2'b01,
        INVERT = 2'b10,
        DONE = 2'b11
    } state_t;

    state_t state, next_state;

    always_ff @(posedge clk or posedge areset) begin
        if (areset) begin
            state <= IDLE;
            z <= 1'b0;
        end else begin
            state <= next_state;
            if (state == INVERT)
                z <= ~x;
            else if (state == COPY)
                z <= x;
        end
    end

    always_comb begin
        case (state)
            IDLE: begin
                if (x == 1'b0)
                    next_state = COPY;
                else
                    next_state = INVERT;
            end
            COPY: begin
                next_state = (x ? INVERT : DONE);
            end
            INVERT: begin
                next_state = (x ? DONE : COPY);
            end
            DONE: begin
                next_state = IDLE;
            end
            default: begin
                next_state = IDLE;
            end
        endcase
    end

endmodule

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

    // State encoding
    typedef enum reg [1:0] {
        IDLE = 2'b00,    // Initial/IDLE state
        ONES = 2'b01,    // Output bit stream of ones
        TWOS = 2'b10     // Output bit stream as zero with carry/borrow
    } state_t;

    // State registers
    reg [1:0] current_state, next_state;
    reg carry; // To store the carry for 2's complement

    // Sequential logic for state transition and carry
    always @(posedge clk or posedge areset) begin
        if (areset) begin
            current_state <= IDLE;
            carry <= 0;
        end else begin
            current_state <= next_state;
        end
    end

    // Combinational logic for next state and output
    always @(*) begin
        case (current_state)
            IDLE: begin
                z = x; // Initial output same as input (for LSB)
                if (x == 1'b1) begin
                    next_state = TWOS;
                    carry = 0;
                end else begin
                    next_state = ONES;
                    carry = 1'b1;
                end
            end

            ONES: begin
                z = ~x;
                if (x == 1'b1) begin
                    carry = 1'b0;
                    next_state = TWOS;
                end else begin
                    carry = 1'b1;
                end
            end

            TWOS: begin
                z = ~x ^ carry;
                if (x == 1'b1) begin
                    carry = carry & 1'b0;
                end else begin
                    carry = 1'b1;
                end
            end

            default: begin
                next_state = IDLE;
                z = 1'b0;
            end
        endcase
    end

endmodule

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

    typedef enum reg [1:0] {STATE_ZERO = 2'b00, STATE_ONE = 2'b01, STATE_FLIP = 2'b10} state_t;
    reg state, next_state;

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

    always @(*) begin
        case (state)
            STATE_ZERO: begin
                z = x;
                next_state = x ? STATE_FLIP : STATE_ZERO;
            end
            STATE_ONE: begin
                z = 0;
                next_state = STATE_ONE;
            end
            STATE_FLIP: begin
                z = ~x;
                next_state = x ? STATE_FLIP : STATE_ONE;
            end
            default: begin
                z = 0;
                next_state = STATE_ZERO;
            end
        endcase
    end

endmodule

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

    typedef enum logic [1:0] {
        IDLE = 2'b00,
        ONES_COMP = 2'b01,
        ADD_ONE = 2'b10
    } state_t;

    state_t state, next_state;
    logic ones_comp;

    always_ff @(posedge clk or posedge areset) begin
        if (areset) begin
            state <= IDLE;
            z <= 1'b0;
        end else begin
            state <= next_state;
            z <= ones_comp;
        end
    end

    always_comb begin
        next_state = state;
        case (state)
            IDLE: begin
                if (!areset) begin
                    next_state = ONES_COMP;
                end
            end
            ONES_COMP: begin
                ones_comp = ~x;
                if (x == 1'b0) begin
                    next_state = ADD_ONE;
                end
            end
            ADD_ONE: begin
                ones_comp = 1'b1;
                if (x == 1'b1) begin
                    next_state = ONES_COMP;
                end else begin
                    next_state = ADD_ONE;
                end
            end
            default: begin
                next_state = IDLE;
                ones_comp = 1'b0;
            end
        endcase
    end

endmodule

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

    // State definitions
    typedef enum reg [1:0] {
        IDLE,
        INVERT,
        PASS
    } state_t;

    state_t current_state, next_state;
    reg invert_bit;

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

    always @(*) begin
        case (current_state)
            IDLE: begin
                next_state = x ? INVERT : PASS;
                invert_bit = 0;
            end
            INVERT: begin
                next_state = x ? INVERT : PASS;
                invert_bit = 1;
            end
            PASS: begin
                next_state = x ? INVERT : PASS;
                invert_bit = 0;
            end
            default: begin
                next_state = IDLE;
                invert_bit = 0;
            end
        endcase
    end

    always @(posedge clk or posedge areset) begin
        if (areset) begin
            z <= 1'b0;
        end else begin
            z <= (invert_bit ^ x);
        end
    end

endmodule

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

    // State enumeration
    typedef enum reg {IDLE, ONES, TWOS} state_t;
    state_t current_state, next_state;

    // Flip-flop for storing inverted bit
    reg inv_bit;

    // State transition on clock edge
    always @(posedge clk or posedge areset) begin
        if (areset)
            current_state <= IDLE;
        else
            current_state <= next_state;
    end

    // Next state logic & output logic
    always @(*) begin
        case (current_state)
            IDLE: begin
                z = 0;
                inv_bit = ~x;  // Flip the first bit
                next_state = (x == 1) ? ONES : IDLE; // Wait for first 1 to start 1's complement
            end
            ONES: begin
                z = inv_bit;
                inv_bit = ~x;  // Continue complementing
                next_state = (x == 1) ? TWOS : ONES; // Move to 2's complement when first 1 reached
            end
            TWOS: begin
                z = inv_bit;
                next_state = TWOS; // Continue in 2's complement state
            end
            default: begin
                z = 0;
                next_state = IDLE;
            end
        endcase
    end

endmodule

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

    // State definitions
    typedef enum reg [1:0] {
        STATE_IDLE = 2'b00,
        STATE_NEGATE = 2'b01,
        STATE_PASS = 2'b10
    } state_t;

    state_t current_state, next_state;

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

    // Next state logic and output logic
    always @(*) begin
        // Default assignments
        next_state = current_state;
        z = 0;

        case (current_state)
            STATE_IDLE: begin
                if (x) begin
                    next_state = STATE_NEGATE;
                    z = 0; // As complement begins with 0 series
                end else begin
                    next_state = STATE_PASS;
                    z = 1; // Start negation for LSB 0
                end
            end
            STATE_NEGATE: begin
                next_state = STATE_NEGATE;
                z = ~x; // Negate all subsequent bits
            end
            STATE_PASS: begin
                next_state = STATE_PASS;
                z = x; // Pass all subsequent bits as is
            end
        endcase
    end

endmodule


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

    // State encoding
    typedef enum reg [1:0] {
        STATE_A = 2'b00,
        STATE_B = 2'b01,
        STATE_C = 2'b10,
        STATE_D = 2'b11
    } state_t;

    state_t current_state, next_state;

    // State transition logic
    always @(*) begin
        case (current_state)
            STATE_A: next_state = in ? STATE_B : STATE_A;
            STATE_B: next_state = in ? STATE_B : STATE_C;
            STATE_C: next_state = in ? STATE_D : STATE_A;
            STATE_D: next_state = in ? STATE_B : STATE_C;
            default: next_state = STATE_A;
        endcase
    end

    // State register logic with asynchronous reset
    always @(posedge clk or posedge areset) begin
        if (areset)
            current_state <= STATE_A;
        else
            current_state <= next_state;
    end

    // Output logic
    always @(*) begin
        case (current_state)
            STATE_D: out = 1;
            default: out = 0;
        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 logic
    always @(*) begin
        case (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

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

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

endmodule

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

    typedef enum logic [1:0] {A=2'd0, B=2'd1, C=2'd2, D=2'd3} state_t;
    state_t current_state, next_state;

    // State Transition
    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

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

    // Output Logic
    always @(*) begin
        case (current_state)
            D: out = 1'b1;
            default: out = 1'b0;
        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 logic
    always @(*) begin
        case (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; // default case
        endcase
    end

    // State flip-flops with asynchronous reset
    always @(posedge clk or posedge areset) begin
        if (areset)
            state <= A;
        else
            state <= next_state;
    end

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

endmodule

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

    // State definitions
    typedef enum reg [1:0] {
        S_A = 2'b00,
        S_B = 2'b01,
        S_C = 2'b10,
        S_D = 2'b11
    } state_t;

    state_t current_state, next_state;

    // State transition logic
    always @(*) begin
        case (current_state)
            S_A: next_state = in ? S_B : S_A;
            S_B: next_state = in ? S_B : S_C;
            S_C: next_state = in ? S_D : S_A;
            S_D: next_state = in ? S_B : S_C;
            default: next_state = S_A;
        endcase
    end

    // Output logic
    always @(*) begin
        case (current_state)
            S_A, S_B, S_C: out = 0;
            S_D: out = 1;
            default: out = 0;
        endcase
    end

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

endmodule

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

    // Define state encodings
    typedef enum reg [1:0] {
        STATE_A = 2'b00,
        STATE_B = 2'b01,
        STATE_C = 2'b10,
        STATE_D = 2'b11
    } state_t;

    state_t current_state, next_state;

    // State transition logic (next state logic)
    always @(*) begin
        case (current_state)
            STATE_A: next_state = (in) ? STATE_B : STATE_A;
            STATE_B: next_state = (in) ? STATE_B : STATE_C;
            STATE_C: next_state = (in) ? STATE_D : STATE_A;
            STATE_D: next_state = (in) ? STATE_B : STATE_C;
            default: next_state = STATE_A;
        endcase
    end

    // Output logic
    always @(*) begin
        case (current_state)
            STATE_D: out = 1;
            default: out = 0;
        endcase
    end

    // State register logic
    always @(posedge clk or posedge areset) begin
        if (areset)
            current_state <= STATE_A;
        else
            current_state <= next_state;
    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 state, next_state;

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

    always_comb begin
        case (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

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

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_comb begin
        case (current_state)
            A: if (in == 1'b0) next_state = A;
               else next_state = B;
            B: if (in == 1'b0) next_state = C;
               else next_state = B;
            C: if (in == 1'b0) next_state = A;
               else next_state = D;
            D: if (in == 1'b0) next_state = C;
               else next_state = B;
            default: next_state = A;
        endcase
    end

    // State flip-flops with asynchronous reset
    always_ff @(posedge clk or posedge areset) begin
        if (areset)
            current_state <= A;
        else
            current_state <= next_state;
    end

    // Output logic
    always_comb begin
        case (current_state)
            D: out = 1;
            default: out = 0;
        endcase
    end
endmodule

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

    // State encoding
    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 logic
    always @(*) begin
        case (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

    // State flip-flops with asynchronous reset
    always @(posedge clk or posedge areset) begin
        if (areset)
            state <= A;
        else
            state <= next_state;
    end

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

endmodule

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

    // State encoding
    typedef enum reg [1:0] {
        STATE_A = 2'b00,
        STATE_B = 2'b01,
        STATE_C = 2'b10,
        STATE_D = 2'b11
    } state_t;

    state_t state, next_state;

    // Next state logic
    always @(*) begin
        case (state)
            STATE_A: next_state = (in) ? STATE_B : STATE_A;
            STATE_B: next_state = (in) ? STATE_B : STATE_C;
            STATE_C: next_state = (in) ? STATE_D : STATE_A;
            STATE_D: next_state = (in) ? STATE_B : STATE_C;
            default: next_state = STATE_A; // Default to prevent latches
        endcase
    end

    // Output logic (Moore machine: output depends only on the state)
    always @(*) begin
        case (state)
            STATE_D: out = 1'b1;
            default: out = 1'b0;
        endcase
    end

    // State register with asynchronous reset
    always @(posedge clk or posedge areset) begin
        if (areset)
            state <= STATE_A;
        else
            state <= next_state;
    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 state, next_state;

    // State transition logic
    always @(*) begin
        case (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

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

    // Output logic
    always @(*) begin
        case (state)
            D: out = 1;
            default: out = 0;
        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)
            current_state <= A;
        else
            current_state <= next_state;
    end

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

    always @(*) begin
        case (current_state)
            D: out = 1;
            default: out = 0;
        endcase
    end

endmodule

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

    // State encoding
    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 logic
    always @(*) begin
        case (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 @(*) begin
        case (state)
            D: out = 1'b1;
            default: out = 1'b0;
        endcase
    end

    // State register
    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
);
    // State encoding
    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 logic
    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

    // State register with asynchronous reset
    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
);

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

    state_t state, next_state;

    // State transitions
    always @(*) begin
        case (state)
            A: next_state = (in == 1'b0) ? A : B;
            B: next_state = (in == 1'b0) ? C : B;
            C: next_state = (in == 1'b0) ? A : D;
            D: next_state = (in == 1'b0) ? C : B;
            default: next_state = A;
        endcase
    end

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

    // Output logic
    always @(*) begin
        case (state)
            D: out = 1'b1;
            default: out = 1'b0;
        endcase
    end

endmodule

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

    // Define 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 @(*) 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 @(*) 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)
            current_state <= A;
        else
            current_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) begin
            state <= A;
        end else begin
            state <= next_state;
        end
    end

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

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

    // State encoding
    typedef enum reg [1:0] {
        STATE_A = 2'b00,
        STATE_B = 2'b01,
        STATE_C = 2'b10,
        STATE_D = 2'b11
    } state_t;

    reg [1:0] state, next_state;

    // State transitions
    always @(*) begin
        case (state)
            STATE_A: next_state = (in) ? STATE_B : STATE_A;
            STATE_B: next_state = (in) ? STATE_B : STATE_C;
            STATE_C: next_state = (in) ? STATE_D : STATE_A;
            STATE_D: next_state = (in) ? STATE_B : STATE_C;
            default: next_state = STATE_A;
        endcase
    end

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

    // Output logic
    always @(*) begin
        case (state)
            STATE_A, STATE_B, STATE_C: out = 0;
            STATE_D: out = 1;
            default: out = 0;
        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 [31:0] in,
	output [31:0] out
);
	assign out[31:24] = in[7:0];
	assign out[23:16] = in[15:8];
	assign out[15:8] = in[23:16];
	assign out[7:0] = in[31:24];
endmodule

module top_module (
    input [31:0] in,
    output [31:0] out
);
    assign out[7:0] = in[31:24];
    assign out[15:8] = in[23:16];
    assign out[23:16] = in[15:8];
    assign out[31:24] = in[7:0];
endmodule


module top_module (
    input clk,
    input d,
    input r,
    output logic q
);

    always_ff @(posedge clk) 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) begin
        if (r)
            q <= 1'b0;
        else
            q <= d;
    end

endmodule

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

module top_module (
	input clk,
	input d,
	input r,
	output logic q
);

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

endmodule

module top_module (
    input clk,
    input d,
    input r,
    output logic q
);
    always @(posedge clk) begin
        if (r)
            q <= 1'b0;
        else
            q <= d;
    end
endmodule

module top_module (
	input clk,
	input d,
	input r,
	output logic q
);

	always_ff @(posedge clk) begin
		if (r) begin
			q <= 1'b0;
		end else begin
			q <= d;
		end
	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 aresetn,
    input x,
    output reg z
);

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

    state_t state, next_state;

    // State transition logic
    always @(*) begin
        case (state)
            S0: next_state = x ? S1 : S0;
            S1: next_state = x ? S1 : S2;
            S2: next_state = x ? S1 : S0;
            default: next_state = S0;
        endcase
    end

    // Output logic
    always @(*) begin
        z = (state == S2) && x;
    end

    // State register with asynchronous reset
    always @(negedge clk or negedge aresetn) begin
        if (!aresetn)
            state <= S0;
        else
            state <= next_state;
    end

endmodule

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

    // State encoding
    typedef enum reg [1:0] {
        S0, // Initial state, waiting for '1'
        S1, // Detected '1', waiting for '0'
        S2  // Detected '10', waiting for '1' to complete '101'
    } state_t;

    state_t state, next_state;

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

    // Next state logic
    always @(*) begin
        case (state)
            S0: if (x) next_state = S1; else next_state = S0;
            S1: if (x) next_state = S1; else next_state = S2;
            S2: if (x) next_state = S1; else next_state = S0;
            default: next_state = S0;
        endcase
    end

    // Output logic
    always @(*) begin
        z = (state == S2) && x;
    end

endmodule

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

    typedef enum reg [1:0] {
        S0,   // Initial state
        S1,   // State after seeing '1'
        S10   // State after seeing '10'
    } state_t;

    state_t current_state, next_state;

    // State transition logic
    always @(*) begin
        case (current_state)
            S0: begin
                if (x)
                    next_state = S1;
                else
                    next_state = S0;
            end
            S1: begin
                if (x)
                    next_state = S1;
                else
                    next_state = S10;
            end
            S10: begin
                if (x)
                    next_state = S1;
                else
                    next_state = S0;
            end
            default: next_state = S0;
        endcase
    end

    // State update logic
    always @(negedge clk or negedge aresetn) begin
        if (!aresetn)
            current_state <= S0;
        else
            current_state <= next_state;
    end

    // Output logic
    always @(*) begin
        z = (current_state == S10 && x);
    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 seeing '1'
        S2   // State after seeing '10'
    } state_t;

    state_t state, next_state;

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

    always_comb begin
        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)
                    next_state = S1;
                else
                    next_state = S0;
            end

            default: next_state = S0;
        endcase
    end

    always_ff @(posedge clk or negedge aresetn) begin
        if (!aresetn)
            z <= 1'b0;
        else
            z <= (state == S2) & x;
    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 @(negedge aresetn or posedge clk) begin
        if (!aresetn)
            state <= S0;
        else
            state <= next_state;
    end

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

    always @(*) begin
        z = (state == S2 && x == 1'b0);
    end

endmodule

module top_module (
    input clk,
    input aresetn,
    input x,
    output reg z
);
    // State encoding
    typedef enum logic [1:0] {
        S0 = 2'b00,  // Initial state
        S1 = 2'b01,  // State after seeing '1'
        S2 = 2'b10   // State after seeing '10'
    } state_t;

    state_t state, next_state;

    // State transition logic
    always @(*) begin
        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)
                    next_state = S1; // Sequence '101' detected
                else
                    next_state = S0;
            end
            default: next_state = S0;
        endcase
    end

    // State flip-flops (sequential logic)
    always @(negedge clk or negedge aresetn) begin
        if (!aresetn)
            state <= S0;
        else
            state <= next_state;
    end

    // Output logic
    always @(*) begin
        z = (state == S2 && x == 1'b1);
    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;

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

    // Next State Logic
    always @(*) begin
        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 = S1;
            end
            S2: begin
                if (x)
                    next_state = S1;
                else
                    next_state = S0;
            end
            default: next_state = S0;
        endcase
    end

    // Output Logic
    always @(*) begin
        case (current_state)
            S0: z = 1'b0;
            S1: z = 1'b0;
            S2: z = (x) ? 1'b1 : 1'b0;
            default: z = 1'b0;
        endcase
    end

endmodule

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

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

    state_t state, next_state;

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

    always_comb begin
        next_state = state;
        z = 1'b0;
        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'b1;
                end else
                    next_state = S0;
            end
        endcase
    end

endmodule

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

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

    state_t current_state, next_state;

    // State transition logic
    always @(*) begin
        case (current_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)
                    next_state = S1;
                else
                    next_state = S0;
            end
        endcase
    end

    // Next state and output logic
    always @(negedge clk or negedge aresetn) begin
        if (!aresetn) begin
            current_state <= S0;
            z <= 0;
        end else begin
            current_state <= next_state;
            z <= (current_state == S2 && x);
        end
    end

endmodule

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

    typedef enum reg [1:0] {
        S0 = 2'd0,  // initial state
        S1 = 2'd1,  // state after seeing '1'
        S2 = 2'd2   // state after seeing '10'
    } state_t;

    state_t current_state, next_state;

    // State transition logic (combinational)
    always @(*) begin
        case (current_state)
            S0: next_state = x ? S1 : S0;
            S1: next_state = x ? S1 : S2;
            S2: next_state = x ? S1 : S0;
            default: next_state = S0;
        endcase
    end

    // Output logic (combinational)
    always @(*) begin
        case (current_state)
            S2: z = x ? 1 : 0;
            default: z = 0;
        endcase
    end

    // State flip-flops with asynchronous reset (sequential)
    always @(negedge clk or negedge aresetn) begin
        if (!aresetn)
            current_state <= S0;
        else
            current_state <= next_state;
    end

endmodule

module top_module (
    input clk,
    input aresetn,
    input x,
    output reg z
);
    // State Definitions
    typedef enum logic [1:0] {
        STATE_IDLE = 2'b00,
        STATE_1    = 2'b01,
        STATE_10   = 2'b10
    } state_t;

    state_t current_state, next_state;

    // State Transition Logic
    always_ff @(posedge clk or negedge aresetn) begin
        if (!aresetn)
            current_state <= STATE_IDLE;
        else
            current_state <= next_state;
    end

    // Next State Logic
    always_comb begin
        z = 0;  // Default output
        case (current_state)
            STATE_IDLE: begin
                if (x == 1)
                    next_state = STATE_1;
                else
                    next_state = STATE_IDLE;
            end
            STATE_1: begin
                if (x == 0)
                    next_state = STATE_10;
                else
                    next_state = STATE_1;
            end
            STATE_10: begin
                if (x == 1) begin
                    next_state = STATE_1;
                    z = 1;  // Sequence "101" detected
                end
                else
                    next_state = STATE_IDLE;
            end
            default: next_state = STATE_IDLE;
        endcase
    end
endmodule

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

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

    state_t current_state, next_state;

    // State transition logic
    always @(*) begin
        case (current_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)
                    next_state = S1;
                else
                    next_state = S0;
            end
            default: next_state = S0;
        endcase
    end

    // State flip-flops with asynchronous reset
    always @(negedge clk or negedge aresetn) begin
        if (!aresetn)
            current_state <= S0;
        else
            current_state <= next_state;
    end

    // Output logic
    always @(*) begin
        z = (current_state == S2 && x);
    end

endmodule

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

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

    reg [1:0] state, next_state;

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

    always @(*) begin
        z = 0;
        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;
                end else
                    next_state = S0;
            end
            default: next_state = S0;
        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 current_state, next_state;

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

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

    always @(*) begin
        case (current_state)
            S0: z = 1'b0;
            S1: z = 1'b0;
            S2: z = (x == 1'b0) ? 1'b1 : 1'b0;
            default: z = 1'b0;
        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;

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

    // Next state logic
    always @(*) begin
        case(state)
            S0: if (x) next_state = S1; else next_state = S0;
            S1: if (x) next_state = S1; else next_state = S2;
            S2: if (x) next_state = S1; else next_state = S0;
            default: next_state = S0;
        endcase
    end

    // Output logic
    always @(*) begin
        z = (state == S2 && x);
    end

endmodule

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

    typedef enum logic [1:0] {
        S0 = 2'b00,
        S1 = 2'b01,
        S2 = 2'b10
    } 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_comb begin
        z = 0;
        case (current_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;
                end else
                    next_state = S0;
            end
            default: next_state = S0;
        endcase
    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;

    // 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;
                else
                    next_state = S0;
            end
            S1: begin
                if (x)
                    next_state = S1;
                else
                    next_state = S2;
            end
            S2: begin
                if (x)
                    next_state = S1;
                else
                    next_state = S0;
            end
        endcase
    end

    // Output logic
    always @(*) begin
        case (state)
            S0: z = 0;
            S1: z = 0;
            S2: z = x;
            default: z = 0;
        endcase
    end

endmodule

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

    typedef enum logic [1:0] {
        STATE_0 = 2'b00,
        STATE_1 = 2'b01,
        STATE_2 = 2'b10
    } state_t;

    state_t state, next_state;

    always_ff @(posedge clk or negedge aresetn) begin
        if (!aresetn)
            state <= STATE_0;
        else
            state <= next_state;
    end

    always_comb begin
        case(state)
            STATE_0: begin
                z = 1'b0;
                if (x)
                    next_state = STATE_1;
                else
                    next_state = STATE_0;
            end
            STATE_1: begin
                z = 1'b0;
                if (x)
                    next_state = STATE_1;
                else
                    next_state = STATE_2;
            end
            STATE_2: begin
                if (x) begin
                    z = 1'b1;
                    next_state = STATE_1;
                end else begin
                    z = 1'b0;
                    next_state = STATE_0;
                end
            end
            default: begin
                z = 1'b0;
                next_state = STATE_0;
            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, // State after receiving '1'
        S2 = 2'b11  // State after receiving '10'
    } state_t;

    state_t current_state, next_state;

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

    always @(*) begin
        // Default output and state transition
        z = 1'b0;
        next_state = current_state;

        case (current_state)
            S0: begin
                if (x)
                    next_state = S1;
            end

            S1: begin
                if (!x)
                    next_state = S2;
            end

            S2: begin
                if (x) begin
                    next_state = S1;
                    z = 1'b1;
                end else
                    next_state = S0;
            end
        endcase
    end

endmodule

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

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

    state_t state, next_state;

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

    always_comb begin
        case (state)
            S0: begin
                if (x)
                    next_state = S1;
                else
                    next_state = S0;
                z = 0;
            end

            S1: begin
                if (x)
                    next_state = S1;
                else
                    next_state = S2;
                z = 0;
            end

            S2: begin
                if (x)
                    next_state = S1;
                else
                    next_state = S0;
                z = x;
            end

            default: begin
                next_state = S0;
                z = 0;
            end
        endcase
    end

endmodule