tests/test.sh exit code (0 → resolved); the classification below is post-hoc and cannot change it.module TopModule (
input wire clk,
input wire rst,
input wire start_i,
input wire [3:0] count_i,
input wire [7:0] waddr_i,
input wire [31:0] wseed_i,
input wire susp_req_i,
input wire resume_i,
output reg busy_o,
output reg done_o,
output reg susp_active_o,
output reg susp_ack_o,
output reg [4:0] committed_o,
output reg [7:0] cur_addr_o,
output reg [31:0] cur_data_o
);
localparam [1:0] IDLE = 2'd0,
ACTIVE = 2'd1,
SUSP = 2'd2,
REARM = 2'd3;
reg [1:0] state;
reg [3:0] cnt_lat; // latched count_i
reg [7:0] addr_lat; // latched waddr_i (base address)
reg [31:0] seed_lat; // latched wseed_i
reg [4:0] k; // current word index
reg [1:0] phase; // cycle within the current word's 3-cycle window
reg pending; // pending suspend request
always @(posedge clk) begin
if (rst) begin
state <= IDLE;
busy_o <= 1'b0;
done_o <= 1'b0;
susp_active_o <= 1'b0;
susp_ack_o <= 1'b0;
committed_o <= 5'd0;
cur_addr_o <= 8'd0;
cur_data_o <= 32'd0;
k <= 5'd0;
phase <= 2'd0;
pending <= 1'b0;
cnt_lat <= 4'd0;
addr_lat <= 8'd0;
seed_lat <= 32'd0;
end else begin
// pulse outputs default low
done_o <= 1'b0;
susp_ack_o <= 1'b0;
case (state)
IDLE: begin
if (start_i) begin
// latch inputs and open word 0
cnt_lat <= count_i;
addr_lat <= waddr_i;
seed_lat <= wseed_i;
k <= 5'd0;
phase <= 2'd0;
committed_o <= 5'd0;
pending <= 1'b0;
busy_o <= 1'b1;
susp_active_o <= 1'b0;
cur_addr_o <= waddr_i; // waddr + 0
cur_data_o <= wseed_i ^ 32'd1; // seed ^ (0+1)
state <= ACTIVE;
end
end
ACTIVE: begin
if (phase != 2'd2) begin
// non-closing edge: accumulate suspend request, advance window
if (susp_req_i)
pending <= 1'b1;
phase <= phase + 2'd1;
end else begin
// closing edge for word k
if (k == {1'b0, cnt_lat}) begin
// final close
committed_o <= committed_o + 5'd1;
busy_o <= 1'b0;
done_o <= 1'b1;
cur_addr_o <= 8'd0;
cur_data_o <= 32'd0;
pending <= 1'b0; // discarded on final close
state <= IDLE;
end else begin
// non-final close
committed_o <= committed_o + 5'd1;
if (pending || susp_req_i) begin
// suspend takes effect
susp_active_o <= 1'b1;
susp_ack_o <= 1'b1;
busy_o <= 1'b1;
cur_addr_o <= 8'd0;
cur_data_o <= 32'd0;
pending <= 1'b0;
k <= k + 5'd1; // park before next word
state <= SUSP;
end else begin
// open next word on this same edge
k <= k + 5'd1;
phase <= 2'd0;
cur_addr_o <= addr_lat + (k + 5'd1);
cur_data_o <= seed_lat ^ ({27'd0, k} + 32'd2);
busy_o <= 1'b1;
state <= ACTIVE;
end
end
end
end
SUSP: begin
// ignore start_i and susp_req_i while suspended
if (resume_i) begin
susp_active_o <= 1'b0;
pending <= 1'b0;
busy_o <= 1'b1;
cur_addr_o <= 8'd0;
cur_data_o <= 32'd0;
state <= REARM;
end
end
REARM: begin
// one re-arm cycle already elapsed; open the parked word k
phase <= 2'd0;
cur_addr_o <= addr_lat + k;
cur_data_o <= seed_lat ^ ({27'd0, k} + 32'd1);
busy_o <= 1'b1;
state <= ACTIVE;
end
default: state <= IDLE;
endcase
end
end
endmodule
No file changes, the agent left the workspace untouched.
TEST dut_present: PASS (/app/dut.sv exists) TEST dut_forbidden: PASS (no forbidden constructs) TEST harness_prepare: PASS (harness names nonce-renamed) TEST dut_compiles: PASS (compiled with held-back reference/testbench) TEST simulation_completed: PASS (Mismatches: 0 in 3710 samples) TEST reference_equivalence: PASS (all 3710 samples matched reference)
Reproduce this trial: git checkout 2f94510 && PYTHONPATH=src python3 scripts/build_site.py , then open trial/trial_a37478e978084e34. Re-running the agent live requires EVAL_PLATFORM_ENABLE_OAUTH_SMOKE=1 and is non-deterministic.
Trial trial_a37478e978084e34 · verifier authoritative; classifier explanatory.