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在原先 tb 的基础上增加扩展模块
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lf
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tb/tb_sm3_expnd_top.sv
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254
tb/tb_sm3_expnd_top.sv
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`timescale 1ns / 1ps
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`include "sm3_cfg.v"
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//////////////////////////////////////////////////////////////////////////////////
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// Author: ljgibbs / lf_gibbs@163.com
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// Create Date: 2020/07/26
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// Design Name: sm3
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// Module Name: tb_sm3_expnd_top
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// Description:
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// SM3 填充-扩展模块 testbench
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// 测试 sm3_expnd_core
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// Dependencies:
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// inc/sm3_cfg.v
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// Revision:
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// Revision 0.01 - File Created
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//////////////////////////////////////////////////////////////////////////////////
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module tb_sm3_pad_top (
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);
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`ifdef SM3_INPT_DW_32
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localparam [1:0] INPT_WORD_NUM = 2'd1;
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localparam [31:0] DATA_INIT_PTTRN = 32'h01020304;
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`elsif SM3_INPT_DW_64
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localparam [1:0] INPT_WORD_NUM = 2'd2;
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localparam [63:0] DATA_INIT_PTTRN = 64'h0102030401020304;
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`endif
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//golden pattern
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bit [31:0] gldn_pttrn[15:0];
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bit [60:0] sm3_inpt_byte_num;
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//interface
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sm3_if sm3if();
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//uut with bus wrapper
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sm3_pad_core_wrapper U_sm3_pad_core_wrapper(
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sm3if
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);
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//monitor
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sm3_pad_mntr U_sm3_pad_mntr(
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sm3if,
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gldn_pttrn
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);
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initial begin
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sm3if.clk = 0;
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sm3if.rst_n = 0;
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sm3if.msg_inpt_d = DATA_INIT_PTTRN;
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sm3if.msg_inpt_vld_byte = 0;
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sm3if.msg_inpt_vld = 0;
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sm3if.msg_inpt_lst = 0;
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// sm3if.pad_otpt_ena = 1;//填充模块使能由扩展模块给出
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#100;
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sm3if.rst_n =1;
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while (1) begin
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//complete random
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//sm3_inpt_byte_num = $urandom % (61'h1fff_ffff_ffff_ffff) + 1;
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//medium random
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sm3_inpt_byte_num = $urandom % (64*100) + 1;
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@(posedge sm3if.clk);
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task_pad_inpt_gntr(sm3_inpt_byte_num);
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//生成 golden pattern
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golden_pttrn_gntr(gldn_pttrn,sm3_inpt_byte_num);
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wait(sm3if.pad_otpt_lst);
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@(posedge sm3if.clk);
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end
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end
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always #5 sm3if.clk = ~sm3if.clk;
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//产生填充模块输入
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task automatic task_pad_inpt_gntr(
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input bit [60:0] byte_num
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);
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bit [2:0] unalign_byte_num;
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bit [55:0] data_inpt_clk_num;
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//根据总线位宽计算数据输入时钟数与非对齐的数据数量
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`ifdef SM3_INPT_DW_32
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unalign_byte_num = byte_num[1:0];
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data_inpt_clk_num = unalign_byte_num == 0 ? byte_num[60:2] : byte_num[60:2] + 1'b1;
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`elsif SM3_INPT_DW_64
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unalign_byte_num = byte_num[2:0];
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data_inpt_clk_num = unalign_byte_num == 0 ? byte_num[60:3] : byte_num[60:3] + 1'b1;
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`endif
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//前 N-1 个周期的数据
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sm3if.msg_inpt_vld = 1'b1;
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repeat(data_inpt_clk_num - 1'b1)begin
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@(posedge sm3if.clk);
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end
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sm3if.msg_inpt_lst = 1'b1;
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//准备最后一个周期的数据
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`ifdef SM3_INPT_DW_32
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lst_data_gntr_32(sm3if.msg_inpt_d,sm3if.msg_inpt_vld_byte,unalign_byte_num);
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`elsif SM3_INPT_DW_64
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lst_data_gntr_64(sm3if.msg_inpt_d,sm3if.msg_inpt_vld_byte,unalign_byte_num);
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`endif
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@(posedge sm3if.clk);
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sm3if.msg_inpt_vld = 1'b0;
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sm3if.msg_inpt_lst = 1'b0;
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sm3if.msg_inpt_d = DATA_INIT_PTTRN;
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endtask //automatic
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//产生用于比较的图样，最后 512bit 输出
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function automatic void golden_pttrn_gntr(
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ref bit [31:0] gldn_pttrn[15:0],
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input bit [60:0] byte_num
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);
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int unsigned lst_blk_byte_num;
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int unsigned lst_blk_word_num;
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int unsigned unalign_byte_num;
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int unsigned lst_blk_pad_00_byte_num;//最后一块中的填充数量
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int unsigned lst_blk_pad_10_byte_num;
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longint unsigned bit_num;
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bit [31:0] lst_inpt_data;
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bit flg_new_pad_blk;
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// bit [`INPT_BYTE_DW1:0] vld_byte_mask;
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unalign_byte_num = byte_num[1:0];
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lst_blk_byte_num = byte_num[5:0];
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lst_blk_byte_num = lst_blk_byte_num == 0 ? (byte_num == 0 ? 0 : 64): lst_blk_byte_num;
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//最后一数据块中字的数量
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bit_num = byte_num * 8;
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lst_blk_word_num = unalign_byte_num == 0 ? lst_blk_byte_num[31:2] : lst_blk_byte_num[31:2] + 1'b1;
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//计算填充的字节数量
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if(unalign_byte_num == 0)begin //对齐
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lst_blk_pad_10_byte_num = 1;
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if(lst_blk_word_num < 14) begin
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lst_blk_pad_00_byte_num = 16 - 2 - lst_blk_pad_10_byte_num - lst_blk_word_num;
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flg_new_pad_blk = 0;
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end else if(lst_blk_word_num == 16)begin//lst_blk_word_num == 16
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lst_blk_pad_00_byte_num = 13;
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flg_new_pad_blk = 1;
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end else begin//lst_blk_word_num == 14/15
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lst_blk_pad_00_byte_num = 14;
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flg_new_pad_blk = 1;
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end
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end else begin // 非对齐
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lst_blk_pad_10_byte_num = 0;
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if(lst_blk_word_num < 15) begin
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flg_new_pad_blk = 0;
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lst_blk_pad_00_byte_num = 16 - 2 - lst_blk_word_num;
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end else begin//lst_blk_word_num == 15/16
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flg_new_pad_blk = 1;
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lst_blk_pad_00_byte_num = 14;
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end
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end
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//最后一个周期的数据
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lst_inpt_data = unalign_byte_num == 2'd0 ? {DATA_INIT_PTTRN}
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: unalign_byte_num == 2'd1 ? {DATA_INIT_PTTRN[31-: 8],1'b1, 23'd0}
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: unalign_byte_num == 2'd2 ? {DATA_INIT_PTTRN[31-:16],1'b1, 15'd0}
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: unalign_byte_num == 2'd3 ? {DATA_INIT_PTTRN[31-:24],1'b1, 7'd0}
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: DATA_INIT_PTTRN;
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//填充pattern
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foreach(gldn_pttrn[i])
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if(flg_new_pad_blk)begin//增加填充块的情况
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if (i == 0 && lst_blk_pad_00_byte_num == 13)
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gldn_pttrn[i] = 32'h8000_0000;
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else if (i == 14)
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gldn_pttrn[i] = bit_num[63-:32];
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else if (i == 15)
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gldn_pttrn[i] = bit_num[31-:32];
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else
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gldn_pttrn[i] = 32'h0000_0000;
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end else begin//在原有最后一块的基础上填充
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if(i < lst_blk_word_num - 1)
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gldn_pttrn[i] = DATA_INIT_PTTRN[31:0];
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else if (i < lst_blk_word_num)
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gldn_pttrn[i] = lst_inpt_data;
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else if (i < lst_blk_word_num + lst_blk_pad_10_byte_num)
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gldn_pttrn[i] = 32'h8000_0000;
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else if (i < lst_blk_word_num + lst_blk_pad_10_byte_num + lst_blk_pad_00_byte_num)
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gldn_pttrn[i] = 32'h0000_0000;
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else if (i == 14)
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gldn_pttrn[i] = bit_num[63-:32];
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else if (i == 15)
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gldn_pttrn[i] = bit_num[31-:32];
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else
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gldn_pttrn[i] = 32'hFFFF_FFFF;
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end
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endfunction
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//32bit 生成最后一个周期数据
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`ifdef SM3_INPT_DW_32
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function automatic void lst_data_gntr_32(
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ref logic [31:0] lst_data,
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ref logic [ 3:0] lst_vld_byte,
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input bit [2:0] unalign_byte_num
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);
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lst_vld_byte = unalign_byte_num == 2'd0 ? 4'b1111
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: unalign_byte_num == 2'd1 ? 4'b1000
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: unalign_byte_num == 2'd2 ? 4'b1100
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: unalign_byte_num == 2'd3 ? 4'b1110
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: 4'b1111;
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lst_data = unalign_byte_num == 2'd0 ? {DATA_INIT_PTTRN}
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: unalign_byte_num == 2'd1 ? {DATA_INIT_PTTRN[31-: 8], 24'd0}
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: unalign_byte_num == 2'd2 ? {DATA_INIT_PTTRN[31-:16], 16'd0}
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: unalign_byte_num == 2'd3 ? {DATA_INIT_PTTRN[31-:24], 8'd0}
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: DATA_INIT_PTTRN;
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endfunction
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`elsif SM3_INPT_DW_64
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//64bit 生成最后一个周期数据
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function automatic void lst_data_gntr_64(
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ref logic [63:0] lst_data,
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ref logic [ 7:0] lst_vld_byte,
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input bit [3:0] unalign_byte_num
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);
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lst_vld_byte = unalign_byte_num == 3'd0 ? 8'b1111_1111
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: unalign_byte_num == 3'd1 ? 8'b1000_0000
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: unalign_byte_num == 3'd2 ? 8'b1100_0000
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: unalign_byte_num == 3'd3 ? 8'b1110_0000
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: unalign_byte_num == 3'd4 ? 8'b1111_0000
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: unalign_byte_num == 3'd5 ? 8'b1111_1000
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: unalign_byte_num == 3'd6 ? 8'b1111_1100
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: unalign_byte_num == 3'd7 ? 8'b1111_1110
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: 8'b1111_1111;
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lst_data = unalign_byte_num == 3'd0 ? {DATA_INIT_PTTRN}
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: unalign_byte_num == 3'd1 ? {DATA_INIT_PTTRN[63-: 8], 56'd0}
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: unalign_byte_num == 3'd2 ? {DATA_INIT_PTTRN[63-:16], 48'd0}
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: unalign_byte_num == 3'd3 ? {DATA_INIT_PTTRN[63-:24], 40'd0}
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: unalign_byte_num == 3'd4 ? {DATA_INIT_PTTRN[63-:32], 32'd0}
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: unalign_byte_num == 3'd5 ? {DATA_INIT_PTTRN[63-:40], 24'd0}
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: unalign_byte_num == 3'd6 ? {DATA_INIT_PTTRN[63-:48], 16'd0}
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: unalign_byte_num == 3'd7 ? {DATA_INIT_PTTRN[63-:56], 8'd0}
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: DATA_INIT_PTTRN;
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endfunction
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`endif
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endmodule
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