gpt-5.4-nano | RAG on

module verified_pulse_detect (
    input  clk,
    input  rst_n,
    input  data_in,
    output data_out
);

    reg [2:0] state;

    localparam S0 = 3'd0; // idle, waiting for 0->1
    localparam S1 = 3'd1; // saw 0->1, waiting for 1->0 (first 0 after high)
    localparam S2 = 3'd2; // saw 1->0, waiting one more cycle
    localparam S3 = 3'd3; // saw 0, waiting one more cycle (end of pulse)

    reg data_out_r;

    assign data_out = data_out_r;

    always @(posedge clk or negedge rst_n) begin
        if (!rst_n) begin
            state <= S0;
            data_out_r <= 1'b0;
        end else begin
            data_out_r <= 1'b0;

            case (state)
                S0: begin
                    if (data_in == 1'b1)
                        state <= S1;
                    else
                        state <= S0;
                end
...

[stderr]
/workspace/banchmarks/rtllm/13_rtllm_miscellaneous/task_08/tb.v:10: error: Unknown module type: pulse_detect
3 error(s) during elaboration.
*** These modules were missing:
        pulse_detect referenced 1 times.
***

[error]
None

[
  {
    "stage": "functional",
    "code": "functional.testbench_failed",
    "message": "/workspace/banchmarks/rtllm/13_rtllm_miscellaneous/task_08/tb.v:10: error: Unknown module type: pulse_detect\n3 error(s) during elaboration.\n*** These modules were missing:\n        pulse_detect referenced 1 times.\n***\n",
    "retryable": false,
    "details": {}
  }
]

{
  "llm_ok": true,
  "extract_ok": true,
  "syntax_ok": true,
  "functional_ok": false,
  "openlane_ok": false,
  "syntax_required": true,
  "functional_required": true,
  "openlane_required": true,
  "final_success": false,
  "success": false
}

module verified_pulse_detect (
    input  clk,
    input  rst_n,
    input  data_in,
    output data_out
);

    reg [2:0] state;

    localparam S0 = 3'd0; // waiting for 0->1
    localparam S1 = 3'd1; // saw 0->1, waiting for 1->0 (first 0)
    localparam S2 = 3'd2; // saw 1->0, waiting for next 0 (second 0)
    localparam S3 = 3'd3; // saw 0, waiting for next 0 (third 0) -> pulse ends here

    reg data_out_r;

    assign data_out = data_out_r;

    always @(posedge clk or negedge rst_n) begin
        if (!rst_n) begin
            state <= S0;
            data_out_r <= 1'b0;
        end else begin
            data_out_r <= 1'b0;

            case (state)
                S0: begin
                    if (data_in == 1'b1)
                        state <= S1;
                    else
                        state <= S0;
                end
...

[stderr]
/workspace/banchmarks/rtllm/13_rtllm_miscellaneous/task_08/tb.v:10: error: Unknown module type: pulse_detect
3 error(s) during elaboration.
*** These modules were missing:
        pulse_detect referenced 1 times.
***

[error]
None

[
  {
    "stage": "functional",
    "code": "functional.testbench_failed",
    "message": "/workspace/banchmarks/rtllm/13_rtllm_miscellaneous/task_08/tb.v:10: error: Unknown module type: pulse_detect\n3 error(s) during elaboration.\n*** These modules were missing:\n        pulse_detect referenced 1 times.\n***\n",
    "retryable": false,
    "details": {}
  }
]

{
  "llm_ok": true,
  "extract_ok": true,
  "syntax_ok": true,
  "functional_ok": false,
  "openlane_ok": false,
  "syntax_required": true,
  "functional_required": true,
  "openlane_required": true,
  "final_success": false,
  "success": false
}

module verified_pulse_detect (
    input  clk,
    input  rst_n,
    input  data_in,
    output reg data_out
);

    reg [2:0] state;

    localparam S0 = 3'd0; // waiting for 0->1
    localparam S1 = 3'd1; // saw 1 (first cycle of high)
    localparam S2 = 3'd2; // saw 0 after high (first cycle of low)
    localparam S3 = 3'd3; // saw 0 after that (second cycle of low)
    localparam S4 = 3'd4; // saw 0 after that (third cycle of low) -> assert data_out end of pulse

    always @(posedge clk or negedge rst_n) begin
        if (!rst_n) begin
            state     <= S0;
            data_out  <= 1'b0;
        end else begin
            data_out <= 1'b0;

            case (state)
                S0: begin
                    if (data_in) state <= S1;
                    else         state <= S0;
                end

                S1: begin
                    if (data_in) state <= S1;   // still high
                    else         state <= S2;   // first low after rising
                end
...

[stderr]
/workspace/banchmarks/rtllm/13_rtllm_miscellaneous/task_08/tb.v:10: error: Unknown module type: pulse_detect
3 error(s) during elaboration.
*** These modules were missing:
        pulse_detect referenced 1 times.
***

[error]
None

[
  {
    "stage": "functional",
    "code": "functional.testbench_failed",
    "message": "/workspace/banchmarks/rtllm/13_rtllm_miscellaneous/task_08/tb.v:10: error: Unknown module type: pulse_detect\n3 error(s) during elaboration.\n*** These modules were missing:\n        pulse_detect referenced 1 times.\n***\n",
    "retryable": false,
    "details": {}
  }
]

{
  "llm_ok": true,
  "extract_ok": true,
  "syntax_ok": true,
  "functional_ok": false,
  "openlane_ok": false,
  "syntax_required": true,
  "functional_required": true,
  "openlane_required": true,
  "final_success": false,
  "success": false
}

module verified_pulse_detect (
    input  clk,
    input  rst_n,
    input  data_in,
    output data_out
);

    reg [2:0] state;

    localparam S0 = 3'd0; // idle, waiting for 0->1
    localparam S1 = 3'd1; // saw 1 (first cycle of high)
    localparam S2 = 3'd2; // saw 0 after high (second cycle)
    localparam S3 = 3'd3; // saw 0 after that (third cycle) -> pulse ends here

    reg data_out_r;

    assign data_out = data_out_r;

    always @(posedge clk or negedge rst_n) begin
        if (!rst_n) begin
            state      <= S0;
            data_out_r <= 1'b0;
        end else begin
            data_out_r <= 1'b0;

            case (state)
                S0: begin
                    if (data_in) state <= S1;
                    else         state <= S0;
                end

                S1: begin
...

[stderr]
/workspace/banchmarks/rtllm/13_rtllm_miscellaneous/task_08/tb.v:10: error: Unknown module type: pulse_detect
3 error(s) during elaboration.
*** These modules were missing:
        pulse_detect referenced 1 times.
***

[error]
None

[
  {
    "stage": "functional",
    "code": "functional.testbench_failed",
    "message": "/workspace/banchmarks/rtllm/13_rtllm_miscellaneous/task_08/tb.v:10: error: Unknown module type: pulse_detect\n3 error(s) during elaboration.\n*** These modules were missing:\n        pulse_detect referenced 1 times.\n***\n",
    "retryable": false,
    "details": {}
  }
]

{
  "llm_ok": true,
  "extract_ok": true,
  "syntax_ok": true,
  "functional_ok": false,
  "openlane_ok": false,
  "syntax_required": true,
  "functional_required": true,
  "openlane_required": true,
  "final_success": false,
  "success": false
}

module verified_pulse_detect (
    input  clk,
    input  rst_n,
    input  data_in,
    output data_out
);

    reg [2:0] state;

    localparam S0 = 3'd0; // idle, waiting for 0->1
    localparam S1 = 3'd1; // saw 1 (data_in=1)
    localparam S2 = 3'd2; // saw 0 (data_in=0) after the 1
    localparam S3 = 3'd3; // saw 1 (data_in=1) after the 0
    localparam S4 = 3'd4; // saw 0 (data_in=0) after the 1 => pulse ends here

    reg data_out_r;

    assign data_out = data_out_r;

    always @(posedge clk or negedge rst_n) begin
        if (!rst_n) begin
            state <= S0;
            data_out_r <= 1'b0;
        end else begin
            data_out_r <= 1'b0;

            case (state)
                S0: begin
                    if (data_in) state <= S1;
                    else         state <= S0;
                end
...

[stderr]
/workspace/banchmarks/rtllm/13_rtllm_miscellaneous/task_08/tb.v:10: error: Unknown module type: pulse_detect
3 error(s) during elaboration.
*** These modules were missing:
        pulse_detect referenced 1 times.
***

[error]
None

[
  {
    "stage": "functional",
    "code": "functional.testbench_failed",
    "message": "/workspace/banchmarks/rtllm/13_rtllm_miscellaneous/task_08/tb.v:10: error: Unknown module type: pulse_detect\n3 error(s) during elaboration.\n*** These modules were missing:\n        pulse_detect referenced 1 times.\n***\n",
    "retryable": false,
    "details": {}
  }
]

{
  "llm_ok": true,
  "extract_ok": true,
  "syntax_ok": true,
  "functional_ok": false,
  "openlane_ok": false,
  "syntax_required": true,
  "functional_required": true,
  "openlane_required": true,
  "final_success": false,
  "success": false
}

module verified_pulse_detect (
    input  clk,
    input  rst_n,
    input  data_in,
    output data_out
);

    reg [2:0] state;

    localparam S0 = 3'd0; // idle, waiting for 0->1
    localparam S1 = 3'd1; // saw 0->1, waiting for 1->0 (first 0)
    localparam S2 = 3'd2; // saw 1->0, waiting for 0 (second 0)
    localparam S3 = 3'd3; // saw 0 (second 0), waiting for 0 (third 0) -> pulse end

    reg data_out_r;

    assign data_out = data_out_r;

    always @(posedge clk or negedge rst_n) begin
        if (!rst_n) begin
            state <= S0;
            data_out_r <= 1'b0;
        end else begin
            data_out_r <= 1'b0;

            case (state)
                S0: begin
                    if (data_in == 1'b1)
                        state <= S1;
                    else
                        state <= S0;
                end
...

[stderr]
/workspace/banchmarks/rtllm/13_rtllm_miscellaneous/task_08/tb.v:10: error: Unknown module type: pulse_detect
3 error(s) during elaboration.
*** These modules were missing:
        pulse_detect referenced 1 times.
***

[error]
None

[
  {
    "stage": "functional",
    "code": "functional.testbench_failed",
    "message": "/workspace/banchmarks/rtllm/13_rtllm_miscellaneous/task_08/tb.v:10: error: Unknown module type: pulse_detect\n3 error(s) during elaboration.\n*** These modules were missing:\n        pulse_detect referenced 1 times.\n***\n",
    "retryable": false,
    "details": {}
  }
]

{
  "llm_ok": true,
  "extract_ok": true,
  "syntax_ok": true,
  "functional_ok": false,
  "openlane_ok": false,
  "syntax_required": true,
  "functional_required": true,
  "openlane_required": true,
  "final_success": false,
  "success": false
}

module verified_pulse_detect (
    input  clk,
    input  rst_n,
    input  data_in,
    output reg data_out
);

    // Detect pattern: 0 -> 1 -> 0 with 3 cycles total:
    // data_in sequence over 3 consecutive cycles: 0,1,0
    // data_out is 1 at the end cycle of the pulse (the third cycle), then 0.
    localparam S0 = 2'd0; // waiting for 0
    localparam S1 = 2'd1; // saw 0, waiting for 1
    localparam S2 = 2'd2; // saw 0->1, waiting for 0 (pulse end)

    reg [1:0] state;

    always @(posedge clk or negedge rst_n) begin
        if (!rst_n) begin
            state    <= S0;
            data_out <= 1'b0;
        end else begin
            data_out <= 1'b0; // default

            case (state)
                S0: begin
                    // Expect first cycle of pulse to be 0
                    if (data_in == 1'b0)
                        state <= S1;
                    else
                        state <= S0;
                end
...

[stderr]
/workspace/banchmarks/rtllm/13_rtllm_miscellaneous/task_08/tb.v:10: error: Unknown module type: pulse_detect
3 error(s) during elaboration.
*** These modules were missing:
        pulse_detect referenced 1 times.
***

[error]
None

[
  {
    "stage": "functional",
    "code": "functional.testbench_failed",
    "message": "/workspace/banchmarks/rtllm/13_rtllm_miscellaneous/task_08/tb.v:10: error: Unknown module type: pulse_detect\n3 error(s) during elaboration.\n*** These modules were missing:\n        pulse_detect referenced 1 times.\n***\n",
    "retryable": false,
    "details": {}
  }
]

{
  "llm_ok": true,
  "extract_ok": true,
  "syntax_ok": true,
  "functional_ok": false,
  "openlane_ok": false,
  "syntax_required": true,
  "functional_required": true,
  "openlane_required": true,
  "final_success": false,
  "success": false
}

module verified_pulse_detect (
    input  clk,
    input  rst_n,
    input  data_in,
    output reg data_out
);

    // Detect pattern: 0 -> 1 -> 0 with 3 cycles total:
    // data_in sequence over 3 consecutive cycles: 0,1,0
    // data_out is 1 at the end cycle (third cycle), then returns to 0.
    //
    // Example: data_in = 0 1 0 1 0
    // data_out =       0 0 1 0 1  (aligned to end of each detected 0-1-0)
    //
    // Implementation: FSM with 3 states representing progress through the pattern.

    localparam S0 = 2'd0; // waiting for initial 0
    localparam S1 = 2'd1; // saw 0, waiting for 1
    localparam S2 = 2'd2; // saw 0->1, waiting for 0 (end of pulse)

    reg [1:0] state;

    always @(posedge clk or negedge rst_n) begin
        if (!rst_n) begin
            state     <= S0;
            data_out  <= 1'b0;
        end else begin
            data_out <= 1'b0; // default: only assert on the end cycle

            case (state)
                S0: begin
                    // Need a 0 as the first cycle of the pattern.
...

[stderr]
/workspace/banchmarks/rtllm/13_rtllm_miscellaneous/task_08/tb.v:10: error: Unknown module type: pulse_detect
3 error(s) during elaboration.
*** These modules were missing:
        pulse_detect referenced 1 times.
***

[error]
None

[
  {
    "stage": "functional",
    "code": "functional.testbench_failed",
    "message": "/workspace/banchmarks/rtllm/13_rtllm_miscellaneous/task_08/tb.v:10: error: Unknown module type: pulse_detect\n3 error(s) during elaboration.\n*** These modules were missing:\n        pulse_detect referenced 1 times.\n***\n",
    "retryable": false,
    "details": {}
  }
]

{
  "llm_ok": true,
  "extract_ok": true,
  "syntax_ok": true,
  "functional_ok": false,
  "openlane_ok": false,
  "syntax_required": true,
  "functional_required": true,
  "openlane_required": true,
  "final_success": false,
  "success": false
}

module verified_pulse_detect (
    input  clk,
    input  rst_n,
    input  data_in,
    output reg data_out
);

    // Detect pattern: 0 -> 1 -> 0 over 3 cycles:
    // data_in(t-2)=0, data_in(t-1)=1, data_in(t)=0
    // data_out is 1 at cycle t (end of the pulse), then returns to 0.
    reg d1, d2;

    always @(posedge clk or negedge rst_n) begin
        if (!rst_n) begin
            d1 <= 1'b0;
            d2 <= 1'b0;
            data_out <= 1'b0;
        end else begin
            data_out <= (~d2) & d1 & (~data_in);
            d2 <= d1;
            d1 <= data_in;
        end
    end

endmodule

[stderr]
/workspace/banchmarks/rtllm/13_rtllm_miscellaneous/task_08/tb.v:10: error: Unknown module type: pulse_detect
3 error(s) during elaboration.
*** These modules were missing:
        pulse_detect referenced 1 times.
***

[error]
None

[
  {
    "stage": "functional",
    "code": "functional.testbench_failed",
    "message": "/workspace/banchmarks/rtllm/13_rtllm_miscellaneous/task_08/tb.v:10: error: Unknown module type: pulse_detect\n3 error(s) during elaboration.\n*** These modules were missing:\n        pulse_detect referenced 1 times.\n***\n",
    "retryable": false,
    "details": {}
  }
]

{
  "llm_ok": true,
  "extract_ok": true,
  "syntax_ok": true,
  "functional_ok": false,
  "openlane_ok": false,
  "syntax_required": true,
  "functional_required": true,
  "openlane_required": true,
  "final_success": false,
  "success": false
}

module verified_pulse_detect (
    input  clk,
    input  rst_n,
    input  data_in,
    output data_out
);

    // Pulse definition: data_in goes 0 -> 1 -> 0 with 3 cycles total:
    // Example: 0 1 0 (three consecutive cycles) => data_out asserted at the end cycle.
    //
    // For input sequence 0 1 0 1 0 (01010), data_out = 0 0 1 0 1 (00101).
    //
    // Implement as a 3-state FSM that detects the pattern:
    // S0: waiting for rising edge (0->1)
    // S1: saw '1' (middle of pulse)
    // S2: saw '0' after the '1' (end of pulse) => data_out=1 for this cycle
    //
    // data_out is asserted in S2 only.

    reg [1:0] state;

    localparam S0 = 2'd0;
    localparam S1 = 2'd1;
    localparam S2 = 2'd2;

    reg data_out_r;

    assign data_out = data_out_r;

    always @(posedge clk or negedge rst_n) begin
        if (!rst_n) begin
            state      <= S0;
...

[stderr]
/workspace/banchmarks/rtllm/13_rtllm_miscellaneous/task_08/tb.v:10: error: Unknown module type: pulse_detect
3 error(s) during elaboration.
*** These modules were missing:
        pulse_detect referenced 1 times.
***

[error]
None

[
  {
    "stage": "functional",
    "code": "functional.testbench_failed",
    "message": "/workspace/banchmarks/rtllm/13_rtllm_miscellaneous/task_08/tb.v:10: error: Unknown module type: pulse_detect\n3 error(s) during elaboration.\n*** These modules were missing:\n        pulse_detect referenced 1 times.\n***\n",
    "retryable": false,
    "details": {}
  }
]

{
  "llm_ok": true,
  "extract_ok": true,
  "syntax_ok": true,
  "functional_ok": false,
  "openlane_ok": false,
  "syntax_required": true,
  "functional_required": true,
  "openlane_required": true,
  "final_success": false,
  "success": false
}