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
);
// -----------------------------------------------------------------
// State encoding
// IDLE : waiting for start
// PROG : a word window is open (3-cycle window)
// SUSP : suspended, parked before a word
// REARM : one re-arm cycle after resume, then reopen parked word
// -----------------------------------------------------------------
localparam [1:0] IDLE = 2'd0,
PROG = 2'd1,
SUSP = 2'd2,
REARM = 2'd3;
reg [1:0] state;
reg [1:0] cyc; // position within current 3-cycle window (0..2)
reg [3:0] k; // current / parked word index
reg [3:0] cnt_latched; // latched count_i -> final word index
reg [7:0] addr_base; // latched waddr_i
reg [31:0] seed; // latched wseed_i
reg pending; // pending suspend request
// suspend request seen this edge (or already pending)
wire pend_next = pending | susp_req_i;
// current word is the last one to program
wire is_final = (k == cnt_latched);
always @(posedge clk) begin
// pulse outputs default low
done_o <= 1'b0;
susp_ack_o <= 1'b0;
if (rst) begin
state <= IDLE;
cyc <= 2'd0;
k <= 4'd0;
cnt_latched <= 4'd0;
addr_base <= 8'd0;
seed <= 32'd0;
pending <= 1'b0;
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;
end else begin
case (state)
// ---------------------------------------------------
IDLE: begin
// idle suspend/resume ignored
if (start_i) begin
cnt_latched <= count_i;
addr_base <= waddr_i;
seed <= wseed_i;
k <= 4'd0;
cyc <= 2'd0;
busy_o <= 1'b1;
committed_o <= 5'd0;
pending <= 1'b0;
susp_active_o <= 1'b0;
// open word 0 on this start edge
cur_addr_o <= waddr_i;
cur_data_o <= wseed_i ^ 32'd1;
state <= PROG;
end
end
// ---------------------------------------------------
PROG: begin
if (cyc != 2'd2) begin
// still inside the 3-cycle window
cyc <= cyc + 2'd1;
pending <= pend_next; // sample susp_req while programming
end else begin
// closing edge: commit the current word
committed_o <= committed_o + 5'd1;
if (is_final) begin
// final close: pulse done, drop busy, clear word,
// discard any pending suspend, hold committed
done_o <= 1'b1;
busy_o <= 1'b0;
cur_addr_o <= 8'd0;
cur_data_o <= 32'd0;
pending <= 1'b0;
state <= IDLE;
end else if (pend_next) begin
// non-final close with pending suspend: suspend now
susp_active_o <= 1'b1;
susp_ack_o <= 1'b1;
cur_addr_o <= 8'd0;
cur_data_o <= 32'd0;
pending <= 1'b0;
k <= k + 4'd1; // park the next word
state <= SUSP;
end else begin
// non-final close: open next word on this edge
k <= k + 4'd1;
cur_addr_o <= addr_base + {4'd0, k} + 8'd1; // waddr + (k+1)
cur_data_o <= seed ^ ({28'd0, k} + 32'd2); // seed ^ (k+2)
cyc <= 2'd0;
pending <= 1'b0;
state <= PROG;
end
end
end
// ---------------------------------------------------
SUSP: begin
// while suspended: ignore start_i and susp_req_i
if (resume_i) begin
susp_active_o <= 1'b0;
pending <= 1'b0;
// busy stays high, address/data stay zero for the
// re-arm cycle
state <= REARM;
end
end
// ---------------------------------------------------
REARM: begin
// following edge: open parked word with a full window
cur_addr_o <= addr_base + {4'd0, k}; // waddr + k
cur_data_o <= seed ^ ({28'd0, k} + 32'd1); // seed ^ (k+1)
cyc <= 2'd0;
pending <= 1'b0;
state <= PROG;
end
endcase
end
end
endmodule
Compile-check dut.sv
(iverilog -g2012 -o /tmp/dut_test dut.sv 2>&1 && echo "COMPILE OK") || (verilator --lint-only -Wall dut.sv 2>&1 || echo "no simulator available")
COMPILE OK [stdout] COMPILE OK
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_6c09e5cf458a42c6. Re-running the agent live requires EVAL_PLATFORM_ENABLE_OAUTH_SMOKE=1 and is non-deterministic.
Trial trial_6c09e5cf458a42c6 · verifier authoritative; classifier explanatory.