mirror of
https://github.com/retroSoC/retroSoC.git
synced 2026-11-06 14:55:14 +00:00
maksyuki
39bc1c84b4
- Implemented tests for the deterministic baseline JPEG reference model in , covering encoding, decoding, quality scaling, and error handling. - Created to ensure synchronization between RTL and C register constants for JPEG. - Updated to reflect changes in the number of APB interfaces and IRQ mappings, ensuring the topology generates correct bindings.
90 lines
2.5 KiB
Systemverilog
90 lines
2.5 KiB
Systemverilog
// Copyright (c) 2026 Yuchi Miao <miaoyuchi@ict.ac.cn>
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// retroSoC is licensed under Mulan PSL v2.
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module jpeg_bit_packer_tb;
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logic clk;
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logic rst_n;
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logic [127:0] token_bits;
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logic [ 23:0] token_length;
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logic [ 2:0] token_count;
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logic token_valid;
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logic token_ready;
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logic flush;
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logic flush_ready;
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logic flush_done;
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logic [ 63:0] byte_data;
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logic [ 7:0] byte_keep;
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logic byte_valid;
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logic byte_last;
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logic byte_ready;
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logic error_flag;
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jpeg_bit_packer u_dut (
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.clk_i (clk),
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.rst_n_i (rst_n),
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.token_bits_i (token_bits),
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.token_length_i(token_length),
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.token_count_i (token_count),
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.token_valid_i (token_valid),
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.token_ready_o (token_ready),
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.flush_i (flush),
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.flush_ready_o (flush_ready),
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.flush_done_o (flush_done),
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.byte_data_o (byte_data),
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.byte_keep_o (byte_keep),
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.byte_valid_o (byte_valid),
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.byte_last_o (byte_last),
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.byte_ready_i (byte_ready),
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.error_o (error_flag)
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);
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always #5 clk = ~clk;
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initial begin
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clk = 1'b0;
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rst_n = 1'b0;
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token_bits = '0;
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token_length = '0;
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token_count = 3'd0;
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token_valid = 1'b0;
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flush = 1'b0;
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byte_ready = 1'b0;
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repeat (3) @(negedge clk);
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rst_n = 1'b1;
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token_bits[0+:32] = 32'hff;
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token_length[0+:6] = 6'd8;
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token_bits[32+:32] = 32'ha;
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token_length[6+:6] = 6'd4;
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token_count = 3'd2;
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token_valid = 1'b1;
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@(negedge clk);
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if (!token_ready) $fatal(1, "token input was not accepted");
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token_valid = 1'b0;
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while (!flush_ready) @(negedge clk);
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flush = 1'b1;
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@(negedge clk);
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flush = 1'b0;
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while (!byte_valid) @(negedge clk);
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repeat (2) begin
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@(negedge clk);
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if (byte_data[23:0] != 24'haf00ff || byte_keep != 8'h07 || !byte_last) begin
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$fatal(1, "stuffed output changed under backpressure");
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end
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end
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byte_ready = 1'b1;
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#1;
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if (!flush_done || error_flag) $fatal(1, "flush completion mismatch");
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@(negedge clk);
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byte_ready = 1'b0;
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if (!flush_ready) $fatal(1, "packer did not return to running state");
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flush = 1'b1;
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@(negedge clk);
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flush = 1'b0;
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if (!flush_done || byte_valid) $fatal(1, "empty flush completion mismatch");
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@(negedge clk);
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$display("JPEG bit packer tests passed");
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$finish;
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end
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endmodule
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