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gpt-5.4-nano | RAG on

13_rtllm_arithmetic / task_17 | fixed_point_subtractor

benchmarkrtllm
task_idrtllm/13_rtllm_arithmetic/task_17
samples_total10
final_success_samples8
final_success_rate_samples80.0%
functional_pass_rate_samples80.0%
synth_pass_rate_samples80.0%
source_runsrun_20260426_070416_680227_376b99

Что показывает эта страница

Здесь перечислены все реальные попытки этой модели на одной задаче. По каждой попытке можно увидеть, до какой стадии она дошла, где именно сломалась и какое сообщение об ошибке вернулось из syntax, functional или synthesis.

Samples

sample run extract_ok syntax_ok functional_ok openlane_ok final_success failure_stage failure_reason details
sample_1 run_20260426_070416_680227_376b99 ok failed failed skipped failed syntax /data/eval/out/run_20260426_070416_680227_376b99/tmp/gpt5_4_nano/rtllm__13_rtllm_arithmetic__task_17/sample_1/generated.v:35: syntax error
Open details
sample_dir: E:\Work\MIEM\VKR\Analyse\data\model_dataset\models\gpt-5-4-nano\rag_on\benchmarks\rtllm\tasks\rtllm__13_rtllm_arithmetic__task_17\samples\run_20260426_070416_680227_376b99__sample_1
generated.v preview
module fixed_point_subtractor
#(
    parameter integer Q = 8,
    parameter integer N = 16
)
(
    input  wire [N-1:0] a,
    input  wire [N-1:0] b,
    output wire [N-1:0] c
);

    reg [N-1:0] res;

    wire sign_a = a[N-1];
    wire sign_b = b[N-1];

    wire [N-1:0] abs_a = sign_a ? (~a + {{(N-1){1'b0}},1'b1}) : a;
    wire [N-1:0] abs_b = sign_b ? (~b + {{(N-1){1'b0}},1'b1}) : b;

    wire same_sign = (sign_a == sign_b);

    wire [N:0] diff_abs = {1'b0, abs_a} - {1'b0, abs_b};
    wire abs_a_ge_abs_b = (diff_abs[N] == 1'b0);

    always @* begin
        if (same_sign) begin
            if (sign_a == 1'b0) begin
                res = a - b;
            end else begin
                res = a - b;
            end
        end else begin
...
syntax details
[stderr]
/data/eval/out/run_20260426_070416_680227_376b99/tmp/gpt5_4_nano/rtllm__13_rtllm_arithmetic__task_17/sample_1/generated.v:35: syntax error
/data/eval/out/run_20260426_070416_680227_376b99/tmp/gpt5_4_nano/rtllm__13_rtllm_arithmetic__task_17/sample_1/generated.v:35: error: Malformed statement
/data/eval/out/run_20260426_070416_680227_376b99/tmp/gpt5_4_nano/rtllm__13_rtllm_arithmetic__task_17/sample_1/generated.v:38: syntax error
/data/eval/out/run_20260426_070416_680227_376b99/tmp/gpt5_4_nano/rtllm__13_rtllm_arithmetic__task_17/sample_1/generated.v:38: error: Malformed statement
/data/eval/out/run_20260426_070416_680227_376b99/tmp/gpt5_4_nano/rtllm__13_rtllm_arithmetic__task_17/sample_1/generated.v:48: syntax error
/data/eval/out/run_20260426_070416_680227_376b99/tmp/gpt5_4_nano/rtllm__13_rtllm_arithmetic__task_17/sample_1/generated.v:48: error: Malformed statement
/data/eval/out/run_20260426_070416_680227_376b99/tmp/gpt5_4_nano/rtllm__13_rtllm_arithmetic__task_17/sample_1/generated.v:50: syntax error
/data/eval/out/run_20260426_070416_680227_376b99/tmp/gpt5_4_nano/rtllm__13_rtllm_arithmetic__task_17/sample_1/generated.v:50: error: Malformed statement
/data/eval/out/run_20260426_070416_680227_376b99/tmp/gpt5_4_nano/rtllm__13_rtllm_arithmetic__task_17/sample_1/generated.v:55: syntax error
/data/eval/out/run_20260426_070416_680227_376b99/tmp/gpt5_4_nano/rtllm__13_rtllm_arithmetic__task_17/sample_1/generated.v:55: error: Malformed statement
/data/eval/out/run_20260426_070416_680227_376b99/tmp/gpt5_4_nano/rtllm__13_rtllm_arithmetic__task_17/sample_1/generated.v:57: syntax error
/data/eval/out/run_20260426_070416_680227_376b99/tmp/gpt5_4_nano/rtllm__13_rtllm_arithmetic__task_17/sample_1/generated.v:57: error: Malformed statement
functional details
[stderr]
/data/eval/out/run_20260426_070416_680227_376b99/tmp/gpt5_4_nano/rtllm__13_rtllm_arithmetic__task_17/sample_1/functional/generated.v:35: syntax error
/data/eval/out/run_20260426_070416_680227_376b99/tmp/gpt5_4_nano/rtllm__13_rtllm_arithmetic__task_17/sample_1/functional/generated.v:35: error: Malformed statement
/data/eval/out/run_20260426_070416_680227_376b99/tmp/gpt5_4_nano/rtllm__13_rtllm_arithmetic__task_17/sample_1/functional/generated.v:38: syntax error
/data/eval/out/run_20260426_070416_680227_376b99/tmp/gpt5_4_nano/rtllm__13_rtllm_arithmetic__task_17/sample_1/functional/generated.v:38: error: Malformed statement
/data/eval/out/run_20260426_070416_680227_376b99/tmp/gpt5_4_nano/rtllm__13_rtllm_arithmetic__task_17/sample_1/functional/generated.v:48: syntax error
/data/eval/out/run_20260426_070416_680227_376b99/tmp/gpt5_4_nano/rtllm__13_rtllm_arithmetic__task_17/sample_1/functional/generated.v:48: error: Malformed statement
/data/eval/out/run_20260426_070416_680227_376b99/tmp/gpt5_4_nano/rtllm__13_rtllm_arithmetic__task_17/sample_1/functional/generated.v:50: syntax error
/data/eval/out/run_20260426_070416_680227_376b99/tmp/gpt5_4_nano/rtllm__13_rtllm_arithmetic__task_17/sample_1/functional/generated.v:50: error: Malformed statement
/data/eval/out/run_20260426_070416_680227_376b99/tmp/gpt5_4_nano/rtllm__13_rtllm_arithmetic__task_17/sample_1/functional/generated.v:55: syntax error
/data/eval/out/run_20260426_070416_680227_376b99/tmp/gpt5_4_nano/rtllm__13_rtllm_arithmetic__task_17/sample_1/functional/generated.v:55: error: Malformed statement
/data/eval/out/run_20260426_070416_680227_376b99/tmp/gpt5_4_nano/rtllm__13_rtllm_arithmetic__task_17/sample_1/functional/generated.v:57: syntax error
/data/eval/out/run_20260426_070416_680227_376b99/tmp/gpt5_4_nano/rtllm__13_rtllm_arithmetic__task_17/sample_1/functional/generated.v:57: error: Malformed statement
synthesis details
[error]
None
errors[]
[
  {
    "stage": "syntax",
    "code": "syntax.iverilog_failed",
    "message": "/data/eval/out/run_20260426_070416_680227_376b99/tmp/gpt5_4_nano/rtllm__13_rtllm_arithmetic__task_17/sample_1/generated.v:35: syntax error\n/data/eval/out/run_20260426_070416_680227_376b99/tmp/gpt5_4_nano/rtllm__13_rtllm_arithmetic__task_17/sample_1/generated.v:35: error: Malformed statement\n/data/eval/out/run_20260426_070416_680227_376b99/tmp/gpt5_4_nano/rtllm__13_rtllm_arithmetic__task_17/sample_1/generated.v:38: syntax error\n/data/eval/out/run_20260426_070416_680227_376b99/tmp/gpt5_4_nano/rtllm__13_rtllm_arithmetic__task_17/sample_1/generated.v:38: error: Malformed statement\n/data/eval/out/run_20260426_070416_680227_376b99/tmp/gpt5_4_nano/rtllm__13_rtllm_arithmetic__task_17/sample_1/generated.v:48: syntax error\n/data/eval/out/run_20260426_070416_680227_376b99/tmp/gpt5_4_nano/rtllm__13_rtllm_arithmetic__task_17/sample_1/generated.v:48: error: Malformed statement\n/data/eval/out/run_20260426_070416_680227_376b99/tmp/gpt5_4_nano/rtllm__13_rtllm_arithmetic__task_17/sample_1/generated.v:50: syntax error\n/data/eval/out/run_20260426_070416_680227_376b99/tmp/gpt5_4_nano/rtllm__13_rtllm_arithmetic__task_17/sample_1/generated.v:50: error: Malformed statement\n/data/eval/out/run_20260426_070416_680227_376b99/tmp/gpt5_4_nano/rtllm__13_rtllm_arithmetic__task_17/sample_1/generated.v:55: syntax error\n/data/eval/out/run_20260426_070416_680227_376b99/tmp/gpt5_4_nano/rtllm__13_rtllm_arithmetic__task_17/sample_1/generated.v:55: error: Malformed statement\n/data/eval/out/run_20260426_070416_680227_376b99/tmp/gpt5_4_nano/rtllm__13_rtllm_arithmetic__task_17/sample_1/generated.v:57: syntax error\n/data/eval/out/run_20260426_070416_680227_376b99/tmp/gpt5_4_nano/rtllm__13_rtllm_arithmetic__task_17/sample_1/generated.v:57: error: Malformed statement\n",
    "retryable": false,
    "details": {}
  },
  {
    "stage": "functional",
    "code": "functional.testbench_failed",
    "message": "/data/eval/out/run_20260426_070416_680227_376b99/tmp/gpt5_4_nano/rtllm__13_rtllm_arithmetic__task_17/sample_1/functional/generated.v:35: syntax error\n/data/eval/out/run_20260426_070416_680227_376b99/tmp/gpt5_4_nano/rtllm__13_rtllm_arithmetic__task_17/sample_1/functional/generated.v:35: error: Malformed statement\n/data/eval/out/run_20260426_070416_680227_376b99/tmp/gpt5_4_nano/rtllm__13_rtllm_arithmetic__task_17/sample_1/functional/generated.v:38: syntax error\n/data/eval/out/run_20260426_070416_680227_376b99/tmp/gpt5_4_nano/rtllm__13_rtllm_arithmetic__task_17/sample_1/functional/generated.v:38: error: Malformed statement\n/data/eval/out/run_20260426_070416_680227_376b99/tmp/gpt5_4_nano/rtllm__13_rtllm_arithmetic__task_17/sample_1/functional/generated.v:48: syntax error\n/data/eval/out/run_20260426_070416_680227_376b99/tmp/gpt5_4_nano/rtllm__13_rtllm_arithmetic__task_17/sample_1/functional/generated.v:48: error: Malformed statement\n/data/eval/out/run_20260426_070416_680227_376b99/tmp/gpt5_4_nano/rtllm__13_rtllm_arithmetic__task_17/sample_1/functional/generated.v:50: syntax error\n/data/eval/out/run_20260426_070416_680227_376b99/tmp/gpt5_4_nano/rtllm__13_rtllm_arithmetic__task_17/sample_1/functional/generated.v:50: error: Malformed statement\n/data/eval/out/run_20260426_070416_680227_376b99/tmp/gpt5_4_nano/rtllm__13_rtllm_arithmetic__task_17/sample_1/functional/generated.v:55: syntax error\n/data/eval/out/run_20260426_070416_680227_376b99/tmp/gpt5_4_nano/rtllm__13_rtllm_arithmetic__task_17/sample_1/functional/generated.v:55: error: Malformed statement\n/data/eval/out/run_20260426_070416_680227_376b99/tmp/gpt5_4_nano/rtllm__13_rtllm_arithmetic__task_17/sample_1/functional/generated.v:57: syntax error\n/data/eval/out/run_20260426_070416_680227_376b99/tmp/gpt5_4_nano/rtllm__13_rtllm_arithmetic__task_17/sample_1/functional/generated.v:57: error: Malformed statement\n",
    "retryable": false,
    "details": {}
  }
]
outcome
{
  "llm_ok": true,
  "extract_ok": true,
  "syntax_ok": false,
  "functional_ok": false,
  "openlane_ok": false,
  "syntax_required": true,
  "functional_required": true,
  "openlane_required": true,
  "final_success": false,
  "success": false
}
sample_2 run_20260426_070416_680227_376b99 ok ok ok ok ok success Full pipeline success
Open details
sample_dir: E:\Work\MIEM\VKR\Analyse\data\model_dataset\models\gpt-5-4-nano\rag_on\benchmarks\rtllm\tasks\rtllm__13_rtllm_arithmetic__task_17\samples\run_20260426_070416_680227_376b99__sample_2
generated.v preview
module fixed_point_subtractor
#(
    parameter integer Q = 8,
    parameter integer N = 16
)
(
    input  wire [N-1:0] a,
    input  wire [N-1:0] b,
    output wire [N-1:0] c
);

    wire sign_a = a[N-1];
    wire sign_b = b[N-1];

    wire [N-1:0] abs_a = sign_a ? (~a + {{(N-1){1'b0}},1'b1}) : a; // two's complement abs
    wire [N-1:0] abs_b = sign_b ? (~b + {{(N-1){1'b0}},1'b1}) : b; // two's complement abs

    wire same_sign = (sign_a == sign_b);

    reg [N-1:0] res;

    always @* begin
        if (same_sign) begin
            // Same sign: subtract magnitudes; result sign follows inputs
            // For two's complement fixed-point, this matches: a - b when signs are equal.
            res = $signed(a) - $signed(b);
        end else begin
            // Different signs: add magnitudes; sign depends on which magnitude is larger
            if (abs_a == {N{1'b0}} && abs_b == {N{1'b0}}) begin
                res = {N{1'b0}};
            end else if (abs_a >= abs_b) begin
                // positive result
...
functional details
[stdout]
=========== Your Design Passed ===========
/workspace/banchmarks/rtllm/13_rtllm_arithmetic/task_17/tb.v:73: $finish called at 1000000 (1ps)
synthesis details
[error]
None
outcome
{
  "llm_ok": true,
  "extract_ok": true,
  "syntax_ok": true,
  "functional_ok": true,
  "openlane_ok": true,
  "syntax_required": true,
  "functional_required": true,
  "openlane_required": true,
  "final_success": true,
  "success": true
}
sample_3 run_20260426_070416_680227_376b99 ok failed failed skipped failed syntax /data/eval/out/run_20260426_070416_680227_376b99/tmp/gpt5_4_nano/rtllm__13_rtllm_arithmetic__task_17/sample_3/generated.v:37: syntax error
Open details
sample_dir: E:\Work\MIEM\VKR\Analyse\data\model_dataset\models\gpt-5-4-nano\rag_on\benchmarks\rtllm\tasks\rtllm__13_rtllm_arithmetic__task_17\samples\run_20260426_070416_680227_376b99__sample_3
generated.v preview
module fixed_point_subtractor
#(
    parameter integer Q = 8,
    parameter integer N = 16
)
(
    input  wire [N-1:0] a,
    input  wire [N-1:0] b,
    output wire [N-1:0] c
);

    reg [N-1:0] res;

    wire sign_a = a[N-1];
    wire sign_b = b[N-1];

    wire [N-1:0] abs_a = sign_a ? (~a + {{(N-1){1'b0}},1'b1}) : a;
    wire [N-1:0] abs_b = sign_b ? (~b + {{(N-1){1'b0}},1'b1}) : b;

    wire [N:0] add_abs = {1'b0, abs_a} + {1'b0, abs_b};
    wire [N:0] sub_abs = {1'b0, abs_a} - {1'b0, abs_b};

    always @* begin
        if (sign_a == sign_b) begin
            // Same sign: subtract magnitudes, result sign follows inputs
            // res = a - b (two's complement subtraction), but implemented per spec
            if (sign_a == 1'b0) begin
                // both positive: abs_a - abs_b
                res = (abs_a >= abs_b) ? sub_abs[N-1:0] : (~sub_abs[N-1:0] + {{(N-1){1'b0}},1'b1});
            end else begin
                // both negative: (-abs_a) - (-abs_b) = -(abs_a - abs_b)
                // magnitude subtraction then negate
...
syntax details
[stderr]
/data/eval/out/run_20260426_070416_680227_376b99/tmp/gpt5_4_nano/rtllm__13_rtllm_arithmetic__task_17/sample_3/generated.v:37: syntax error
/data/eval/out/run_20260426_070416_680227_376b99/tmp/gpt5_4_nano/rtllm__13_rtllm_arithmetic__task_17/sample_3/generated.v:37: error: Malformed statement
functional details
[stderr]
/data/eval/out/run_20260426_070416_680227_376b99/tmp/gpt5_4_nano/rtllm__13_rtllm_arithmetic__task_17/sample_3/functional/generated.v:37: syntax error
/data/eval/out/run_20260426_070416_680227_376b99/tmp/gpt5_4_nano/rtllm__13_rtllm_arithmetic__task_17/sample_3/functional/generated.v:37: error: Malformed statement
synthesis details
[error]
None
errors[]
[
  {
    "stage": "syntax",
    "code": "syntax.iverilog_failed",
    "message": "/data/eval/out/run_20260426_070416_680227_376b99/tmp/gpt5_4_nano/rtllm__13_rtllm_arithmetic__task_17/sample_3/generated.v:37: syntax error\n/data/eval/out/run_20260426_070416_680227_376b99/tmp/gpt5_4_nano/rtllm__13_rtllm_arithmetic__task_17/sample_3/generated.v:37: error: Malformed statement\n",
    "retryable": false,
    "details": {}
  },
  {
    "stage": "functional",
    "code": "functional.testbench_failed",
    "message": "/data/eval/out/run_20260426_070416_680227_376b99/tmp/gpt5_4_nano/rtllm__13_rtllm_arithmetic__task_17/sample_3/functional/generated.v:37: syntax error\n/data/eval/out/run_20260426_070416_680227_376b99/tmp/gpt5_4_nano/rtllm__13_rtllm_arithmetic__task_17/sample_3/functional/generated.v:37: error: Malformed statement\n",
    "retryable": false,
    "details": {}
  }
]
outcome
{
  "llm_ok": true,
  "extract_ok": true,
  "syntax_ok": false,
  "functional_ok": false,
  "openlane_ok": false,
  "syntax_required": true,
  "functional_required": true,
  "openlane_required": true,
  "final_success": false,
  "success": false
}
sample_4 run_20260426_070416_680227_376b99 ok ok ok ok ok success Full pipeline success
Open details
sample_dir: E:\Work\MIEM\VKR\Analyse\data\model_dataset\models\gpt-5-4-nano\rag_on\benchmarks\rtllm\tasks\rtllm__13_rtllm_arithmetic__task_17\samples\run_20260426_070416_680227_376b99__sample_4
generated.v preview
module fixed_point_subtractor
#(
    parameter integer Q = 8,
    parameter integer N = 16
)
(
    input  wire [N-1:0] a,
    input  wire [N-1:0] b,
    output wire [N-1:0] c
);

    reg [N-1:0] res;

    wire sign_a = a[N-1];
    wire sign_b = b[N-1];

    wire [N-1:0] abs_a = sign_a ? (~a + {{(N-1){1'b0}}, 1'b1}) : a;
    wire [N-1:0] abs_b = sign_b ? (~b + {{(N-1){1'b0}}, 1'b1}) : b;

    wire [N:0] diff_same_sign = {1'b0, a} - {1'b0, b};

    wire abs_a_ge_abs_b = (abs_a >= abs_b);

    wire [N:0] abs_sum = {1'b0, abs_a} + {1'b0, abs_b};
    wire [N:0] abs_sub = {1'b0, abs_a} - {1'b0, abs_b};

    always @* begin
        res = {N{1'b0}};

        if (sign_a == sign_b) begin
            // Same sign: subtract magnitudes directly in two's complement domain
            res = diff_same_sign[N-1:0];
...
functional details
[stdout]
=========== Your Design Passed ===========
/workspace/banchmarks/rtllm/13_rtllm_arithmetic/task_17/tb.v:73: $finish called at 1000000 (1ps)
synthesis details
[error]
None
outcome
{
  "llm_ok": true,
  "extract_ok": true,
  "syntax_ok": true,
  "functional_ok": true,
  "openlane_ok": true,
  "syntax_required": true,
  "functional_required": true,
  "openlane_required": true,
  "final_success": true,
  "success": true
}
sample_5 run_20260426_070416_680227_376b99 ok ok ok ok ok success Full pipeline success
Open details
sample_dir: E:\Work\MIEM\VKR\Analyse\data\model_dataset\models\gpt-5-4-nano\rag_on\benchmarks\rtllm\tasks\rtllm__13_rtllm_arithmetic__task_17\samples\run_20260426_070416_680227_376b99__sample_5
generated.v preview
module fixed_point_subtractor
#(
    parameter integer Q = 8,
    parameter integer N = 16
)
(
    input  wire [N-1:0] a,
    input  wire [N-1:0] b,
    output wire [N-1:0] c
);

    reg [N-1:0] res;

    wire sign_a = a[N-1];
    wire sign_b = b[N-1];

    wire [N-1:0] abs_a = sign_a ? (~a + {{(N-1){1'b0}},1'b1}) : a; // two's complement abs
    wire [N-1:0] abs_b = sign_b ? (~b + {{(N-1){1'b0}},1'b1}) : b;

    wire [N:0] diff_abs = {1'b0, abs_a} - {1'b0, abs_b}; // magnitude difference
    wire        diff_sign = diff_abs[N]; // 1 if abs_a < abs_b

    always @* begin
        if (sign_a == sign_b) begin
            // Same sign: subtract magnitudes, sign follows inputs
            // res = a - b in two's complement, but implemented per spec
            res = a - b;
        end else begin
            // Different signs: add magnitudes, sign depends on which magnitude is larger
            // Equivalent to: res = abs_a - abs_b with sign = sign_a (if abs_a>=abs_b) else invert
            if (diff_abs[N-1:0] == {N{1'b0}}) begin
                res = {N{1'b0}};
...
functional details
[stdout]
=========== Your Design Passed ===========
/workspace/banchmarks/rtllm/13_rtllm_arithmetic/task_17/tb.v:73: $finish called at 1000000 (1ps)
synthesis details
[error]
None
outcome
{
  "llm_ok": true,
  "extract_ok": true,
  "syntax_ok": true,
  "functional_ok": true,
  "openlane_ok": true,
  "syntax_required": true,
  "functional_required": true,
  "openlane_required": true,
  "final_success": true,
  "success": true
}
sample_6 run_20260426_070416_680227_376b99 ok ok ok ok ok success Full pipeline success
Open details
sample_dir: E:\Work\MIEM\VKR\Analyse\data\model_dataset\models\gpt-5-4-nano\rag_on\benchmarks\rtllm\tasks\rtllm__13_rtllm_arithmetic__task_17\samples\run_20260426_070416_680227_376b99__sample_6
generated.v preview
module fixed_point_subtractor
#(
    parameter integer Q = 8,
    parameter integer N = 16
)
(
    input  wire [N-1:0] a,
    input  wire [N-1:0] b,
    output wire [N-1:0] c
);

    reg [N-1:0] res;

    wire sign_a = a[N-1];
    wire sign_b = b[N-1];

    wire [N-1:0] abs_a = sign_a ? (~a + {{(N-1){1'b0}},1'b1}) : a;
    wire [N-1:0] abs_b = sign_b ? (~b + {{(N-1){1'b0}},1'b1}) : b;

    wire [N-1:0] mag_sub = abs_a - abs_b;
    wire [N-1:0] mag_add = abs_a + abs_b;

    always @* begin
        if (sign_a == sign_b) begin
            // Same sign: subtract magnitudes, keep sign
            // res = a - b (two's complement subtraction) but implemented per spec
            res = (sign_a ? (~(abs_a - abs_b) + {{(N-1){1'b0}},1'b1}) : (abs_a - abs_b));
        end else begin
            // Different signs: add magnitudes, sign depends on which magnitude is larger
            if (abs_a == abs_b) begin
                res = {N{1'b0}}; // zero handling
            end else if (abs_a > abs_b) begin
...
functional details
[stdout]
=========== Your Design Passed ===========
/workspace/banchmarks/rtllm/13_rtllm_arithmetic/task_17/tb.v:73: $finish called at 1000000 (1ps)
synthesis details
[error]
None
outcome
{
  "llm_ok": true,
  "extract_ok": true,
  "syntax_ok": true,
  "functional_ok": true,
  "openlane_ok": true,
  "syntax_required": true,
  "functional_required": true,
  "openlane_required": true,
  "final_success": true,
  "success": true
}
sample_7 run_20260426_070416_680227_376b99 ok ok ok ok ok success Full pipeline success
Open details
sample_dir: E:\Work\MIEM\VKR\Analyse\data\model_dataset\models\gpt-5-4-nano\rag_on\benchmarks\rtllm\tasks\rtllm__13_rtllm_arithmetic__task_17\samples\run_20260426_070416_680227_376b99__sample_7
generated.v preview
module fixed_point_subtractor
#(
    parameter integer Q = 8,
    parameter integer N = 16
)
(
    input  wire [N-1:0] a,
    input  wire [N-1:0] b,
    output wire [N-1:0] c
);

    reg [N-1:0] res;

    wire sign_a = a[N-1];
    wire sign_b = b[N-1];

    wire [N-1:0] abs_a = sign_a ? (~a + {{(N-1){1'b0}},1'b1}) : a;
    wire [N-1:0] abs_b = sign_b ? (~b + {{(N-1){1'b0}},1'b1}) : b;

    wire [N:0] diff_same_sign = {1'b0, a} - {1'b0, b};

    wire abs_a_gt_abs_b = (abs_a > abs_b);
    wire [N:0] abs_sum = {1'b0, abs_a} + {1'b0, abs_b};

    wire [N:0] abs_diff = abs_a_gt_abs_b ? ({1'b0, abs_a} - {1'b0, abs_b}) : ({1'b0, abs_b} - {1'b0, abs_a});

    wire [N-1:0] abs_diff_n = abs_a_gt_abs_b ? abs_diff[N-1:0] : abs_diff[N-1:0];

    always @* begin
        if (sign_a == sign_b) begin
            res = diff_same_sign[N-1:0];
        end else begin
...
functional details
[stdout]
=========== Your Design Passed ===========
/workspace/banchmarks/rtllm/13_rtllm_arithmetic/task_17/tb.v:73: $finish called at 1000000 (1ps)
synthesis details
[error]
None
outcome
{
  "llm_ok": true,
  "extract_ok": true,
  "syntax_ok": true,
  "functional_ok": true,
  "openlane_ok": true,
  "syntax_required": true,
  "functional_required": true,
  "openlane_required": true,
  "final_success": true,
  "success": true
}
sample_8 run_20260426_070416_680227_376b99 ok ok ok ok ok success Full pipeline success
Open details
sample_dir: E:\Work\MIEM\VKR\Analyse\data\model_dataset\models\gpt-5-4-nano\rag_on\benchmarks\rtllm\tasks\rtllm__13_rtllm_arithmetic__task_17\samples\run_20260426_070416_680227_376b99__sample_8
generated.v preview
module fixed_point_subtractor
#(
    parameter integer Q = 8,
    parameter integer N = 16
)
(
    input  wire [N-1:0] a,
    input  wire [N-1:0] b,
    output wire [N-1:0] c
);

    reg [N-1:0] res;

    wire sign_a = a[N-1];
    wire sign_b = b[N-1];

    wire [N-1:0] abs_a = sign_a ? (~a + {{(N-1){1'b0}}, 1'b1}) : a;
    wire [N-1:0] abs_b = sign_b ? (~b + {{(N-1){1'b0}}, 1'b1}) : b;

    wire [N-1:0] abs_diff = (abs_a >= abs_b) ? (abs_a - abs_b) : (abs_b - abs_a);
    wire          abs_diff_sign = (abs_a >= abs_b) ? sign_a : sign_b;

    wire [N-1:0] same_sign_sub = a - b;

    always @* begin
        if (sign_a == sign_b) begin
            res = same_sign_sub;
        end else begin
            if (abs_diff == {N{1'b0}}) begin
                res = {N{1'b0}};
            end else begin
                if (abs_diff_sign == 1'b0) begin
...
functional details
[stdout]
=========== Your Design Passed ===========
/workspace/banchmarks/rtllm/13_rtllm_arithmetic/task_17/tb.v:73: $finish called at 1000000 (1ps)
synthesis details
[error]
None
outcome
{
  "llm_ok": true,
  "extract_ok": true,
  "syntax_ok": true,
  "functional_ok": true,
  "openlane_ok": true,
  "syntax_required": true,
  "functional_required": true,
  "openlane_required": true,
  "final_success": true,
  "success": true
}
sample_9 run_20260426_070416_680227_376b99 ok ok ok ok ok success Full pipeline success
Open details
sample_dir: E:\Work\MIEM\VKR\Analyse\data\model_dataset\models\gpt-5-4-nano\rag_on\benchmarks\rtllm\tasks\rtllm__13_rtllm_arithmetic__task_17\samples\run_20260426_070416_680227_376b99__sample_9
generated.v preview
module fixed_point_subtractor
#(
    parameter integer Q = 8,
    parameter integer N = 16
)
(
    input  wire [N-1:0] a,
    input  wire [N-1:0] b,
    output wire [N-1:0] c
);

    reg [N-1:0] res;

    wire sign_a = a[N-1];
    wire sign_b = b[N-1];

    wire [N-1:0] abs_a = sign_a ? (~a + {{(N-1){1'b0}},1'b1}) : a;
    wire [N-1:0] abs_b = sign_b ? (~b + {{(N-1){1'b0}},1'b1}) : b;

    wire [N:0] diff_abs = {1'b0, abs_a} - {1'b0, abs_b}; // magnitude difference

    always @* begin
        if (sign_a == sign_b) begin
            // Same sign: subtract magnitudes, sign follows inputs
            res = (sign_a == 1'b0) ? (a - b) : (a - b);
        end else begin
            // Different signs: add magnitudes, sign depends on which magnitude is larger
            if (diff_abs == { (N+1){1'b0} }) begin
                res = {N{1'b0}};
            end else if (diff_abs[N] == 1'b0) begin
                // abs_a > abs_b => positive result
                res = diff_abs[N-1:0];
...
functional details
[stdout]
=========== Your Design Passed ===========
/workspace/banchmarks/rtllm/13_rtllm_arithmetic/task_17/tb.v:73: $finish called at 1000000 (1ps)
synthesis details
[error]
None
outcome
{
  "llm_ok": true,
  "extract_ok": true,
  "syntax_ok": true,
  "functional_ok": true,
  "openlane_ok": true,
  "syntax_required": true,
  "functional_required": true,
  "openlane_required": true,
  "final_success": true,
  "success": true
}
sample_10 run_20260426_070416_680227_376b99 ok ok ok ok ok success Full pipeline success
Open details
sample_dir: E:\Work\MIEM\VKR\Analyse\data\model_dataset\models\gpt-5-4-nano\rag_on\benchmarks\rtllm\tasks\rtllm__13_rtllm_arithmetic__task_17\samples\run_20260426_070416_680227_376b99__sample_10
generated.v preview
module fixed_point_subtractor
#(
    parameter integer Q = 8,
    parameter integer N = 16
)
(
    input  wire [N-1:0] a,
    input  wire [N-1:0] b,
    output wire [N-1:0] c
);

    reg [N-1:0] res;

    wire sign_a = a[N-1];
    wire sign_b = b[N-1];

    wire [N-1:0] abs_a = sign_a ? (~a + {{(N-1){1'b0}}, 1'b1}) : a;
    wire [N-1:0] abs_b = sign_b ? (~b + {{(N-1){1'b0}}, 1'b1}) : b;

    wire [N:0] sum_abs = {1'b0, abs_a} + {1'b0, abs_b};

    wire abs_a_ge_abs_b = (abs_a >= abs_b);

    wire [N:0] diff_abs = abs_a_ge_abs_b ?
                            ({1'b0, abs_a} - {1'b0, abs_b}) :
                            ({1'b0, abs_b} - {1'b0, abs_a});

    wire [N-1:0] diff_abs_n = diff_abs[N-1:0];

    always @* begin
        if (sign_a == sign_b) begin
            // Same sign: subtract magnitudes, keep sign
...
functional details
[stdout]
=========== Your Design Passed ===========
/workspace/banchmarks/rtllm/13_rtllm_arithmetic/task_17/tb.v:73: $finish called at 1000000 (1ps)
synthesis details
[error]
None
outcome
{
  "llm_ok": true,
  "extract_ok": true,
  "syntax_ok": true,
  "functional_ok": true,
  "openlane_ok": true,
  "syntax_required": true,
  "functional_required": true,
  "openlane_required": true,
  "final_success": true,
  "success": true
}