Alpha
713ee99941
- play_saolei.tcl: k 每执行一个按键动作就存 shots/NNN_<按键>.png，并覆盖 shots/latest.png（在 VS Code 里开着 latest.png 即可每步自动刷新）；新增 view 命令 - fb2png.py: 新增 --quiet（只写 PNG 不打印，供脚本批量截图） - tb_saolei*.v: 仅格式调整（case 分支拆行），无语义变化 实测：k cuuuuc -> shots/001_c.png ... 006_c.png，每张 640x480 正常
456 lines
17 KiB
Verilog
456 lines
17 KiB
Verilog
`timescale 1ns / 1ps
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// =============================================================================
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// tb_saolei —— 没有 VGA 显示器时的"扫雷调试台"
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//
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// 做法：跑真实的板级顶层 cpu21_board_top（宏 SAOLEI_ROM = 扫雷程序），用 5 向按键
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// 模拟鼠标（板上 BTNC = 左键、BTNU/D/L/R = 上下左右，R15=SW3 = 插旗模式），
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// 定期把显存 1200 字节 dump 成文本；再由 saolei/tools/fb2png.py 按 cpu21_vga.v
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// 里的 8x8 字库与 3 位调色板还原成 PNG —— 等价于给 VGA 画面"截图"。
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//
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// 编译（注意两个 -d 都要带 SAOLEI_ROM）：
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// xvlog -d SAOLEI_ROM -i srcs/board -i srcs/rtl srcs/rtl/*.v \
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// srcs/board/cpu21_board_top.v srcs/tb/tb_saolei.v
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// xelab -d SAOLEI_ROM -top tb_saolei -snapshot saolei_sim
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// xsim saolei_sim -tclbatch run_all.tcl
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//
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// 说明：为了在仿真里按键快一点，用 defparam 把 cpu21_pointer 的去抖采样周期
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// 从 50000 个 CPU 周期（1 ms @50 MHz）压到 50（1 us），这样每次"按键"只要几微秒
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// 就能产生一个事件；上板时那个参数仍然是 50000，行为不变。
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// =============================================================================
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module tb_saolei;
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// ---- 板级顶层端口 ----
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reg clk100 = 1'b0;
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reg rst_n = 1'b0;
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reg go = 1'b0;
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reg [ 2:0] irq_sw = 3'b000;
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reg btnu = 1'b0;
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reg btnd = 1'b0;
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reg btnl = 1'b0;
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reg btnr = 1'b0;
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reg sw_flag = 1'b0;
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wire [15:0] led;
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wire led_we;
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wire [ 7:0] an;
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wire [ 6:0] seg;
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wire dp;
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wire [ 3:0] vga_r, vga_g, vga_b;
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wire vga_hs, vga_vs;
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// 100 MHz 参考时钟
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always #5 clk100 = ~clk100;
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cpu21_board_top #(
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.POINTER_SAMPLE_DIV(50) // 仿真里加速按键去抖（上板默认 50000）
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) dut (
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.clk100 (clk100),
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.rst_n (rst_n),
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.go (go),
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.irq_sw (irq_sw),
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.btnu (btnu),
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.btnd (btnd),
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.btnl (btnl),
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.btnr (btnr),
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.sw_flag (sw_flag),
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.led (led),
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.led_we (led_we),
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.an (an),
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.seg (seg),
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.dp (dp),
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.vga_r (vga_r),
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.vga_g (vga_g),
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.vga_b (vga_b),
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.vga_hs (vga_hs),
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.vga_vs (vga_vs),
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.ps2_clk (1'b1),
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.ps2_data(1'b1)
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);
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// （按键去抖已通过上面的 POINTER_SAMPLE_DIV(50) 参数加速，不用 defparam）
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// ---------------------------------------------------------------- 按键
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// which: 0=go(左键) 1=btnu 2=btnd 3=btnl 4=btnr
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task press;
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input integer which;
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input integer us; // 按住时长（微秒）
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begin
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case (which)
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0:
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go = 1'b1;
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1:
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btnu = 1'b1;
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2:
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btnd = 1'b1;
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3:
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btnl = 1'b1;
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4:
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btnr = 1'b1;
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endcase
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#(us * 1000);
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case (which)
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0:
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go = 1'b0;
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1:
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btnu = 1'b0;
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2:
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btnd = 1'b0;
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3:
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btnl = 1'b0;
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4:
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btnr = 1'b0;
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endcase
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#(200 * 1000); // 松开后留 200 us 让 CPU 消费事件
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end
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endtask
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task click; // 左键点一下
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begin
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press(0, 50);
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end
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endtask
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// ---------------------------------------------------------------- 显存 dump
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integer fh, w, b;
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integer cursor_row, cursor_col;
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// ---- 统计：MMIO 显存写脉冲数 + 当前非零格数 ----
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integer fb_we_cnt = 0;
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always @(posedge dut.clk_cpu)
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if (dut.fb_we)
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fb_we_cnt = fb_we_cnt + 1;
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// ---- 鼠标事件链路三个关键节点 ----
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// ptr_ev : cpu21_pointer 产生事件（ev_valid_o 高的周期数）
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// irq_hi : 鼠标中断线 irq_vec[0] 为高的周期数
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// irq_rise: 该线的上升沿次数（CPU 按上升沿响应中断）
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integer ptr_ev = 0, irq_hi = 0, irq_rise = 0;
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reg irq_prev_q;
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initial
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irq_prev_q = 1'b0;
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always @(posedge dut.clk_cpu) begin
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if (dut.g_btn.u_ptr.ev_valid_o)
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ptr_ev = ptr_ev + 1;
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if (dut.irq_vec[0])
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irq_hi = irq_hi + 1;
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irq_prev_q <= dut.irq_vec[0];
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if (dut.irq_vec[0] && !irq_prev_q)
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irq_rise = irq_rise + 1;
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end
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// 每毫秒打一行，观察事件链路
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integer tick_ms;
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initial
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for (tick_ms = 1; tick_ms <= 20; tick_ms = tick_ms + 1) begin
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#1000000;
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$display("[mouse] %0t ns: ptr_ev=%0d irq_hi=%0d irq_rise=%0d", $time, ptr_ev, irq_hi, irq_rise);
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end
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integer nz_cnt = 0; // 当前非零格数（dump 时统计）
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// ---- PC 热点直方图：确定 CPU 此刻卡在哪个循环 ----
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integer pc_hist[0:255];
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integer pi;
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initial
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for (pi = 0; pi < 256; pi = pi + 1)
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pc_hist[pi] = 0;
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always @(posedge dut.clk_cpu)
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pc_hist[dut.u_cpu.pc_q[9:2]] = pc_hist[dut.u_cpu.pc_q[9:2]] + 1;
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// ---- 探针：控制流日志 ----
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// 1) 记录所有非顺序跳转（1 ms 之后、最多 300 条），用来复盘"跑飞"的路径；
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// 2) 单独标出跳进 ISR 段之间空洞（0x194-0x1FF / 0x218-0x2FF）的时刻。
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reg [31:0] pc_prev;
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integer jmp_log;
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initial begin
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pc_prev = 32'hFFFF_FFFF;
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jmp_log = 0;
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end
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always @(posedge dut.clk_cpu) begin
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pc_prev <= dut.u_cpu.pc_q;
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if (dut.u_cpu.pc_q != (pc_prev + 32'd4)) begin
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if ($time > 1000000 && jmp_log < 300) begin
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$display("[jmp] %0t ns: 0x%03h -> 0x%03h", $time, pc_prev, dut.u_cpu.pc_q);
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jmp_log = jmp_log + 1;
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end
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if ((dut.u_cpu.pc_q >= 32'h0000_0194 && dut.u_cpu.pc_q < 32'h0000_0200) ||
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(dut.u_cpu.pc_q >= 32'h0000_0218 && dut.u_cpu.pc_q < 32'h0000_0300))
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$display("[gap] %0t ns: PC 0x%03h -> 0x%03h （跳进空洞）", $time, pc_prev, dut.u_cpu.pc_q);
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end
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end
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task dump_pc;
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integer i1, i2, best, besti;
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begin
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$display(" [pc] 热点（pc, 命中数）:");
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for (i1 = 0; i1 < 3; i1 = i1 + 1) begin
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best = -1;
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besti = -1;
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for (i2 = 0; i2 < 256; i2 = i2 + 1)
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if (pc_hist[i2] > best) begin
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best = pc_hist[i2];
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besti = i2;
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end
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if (besti >= 0 && best > 0) begin
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$display(" pc=0x%03h count=%0d", besti << 2, best);
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pc_hist[besti] = 0;
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end
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end
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end
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endtask
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// ---- RAM 窗口（核对变量地址映射）----
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task dump_ramwin;
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integer i3;
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begin
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$display(" [ram] 0x00..0x3F: %08h %08h %08h %08h %08h %08h %08h %08h",
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dut.ram[0], dut.ram[1], dut.ram[2], dut.ram[3],
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dut.ram[4], dut.ram[5], dut.ram[6], dut.ram[7]);
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$display(" [ram] 0x100..0x11F: %08h %08h %08h %08h %08h %08h %08h %08h",
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dut.ram[32'h0100 >> 2], dut.ram[32'h0104 >> 2],
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dut.ram[32'h0108 >> 2], dut.ram[32'h010C >> 2],
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dut.ram[32'h0110 >> 2], dut.ram[32'h0114 >> 2],
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dut.ram[32'h0118 >> 2], dut.ram[32'h011C >> 2]);
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end
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endtask
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// g_exit=0x04 g_in_level=0x08 acc_y=0x40C acc_x=0x410 cur_c=0x414
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// cur_r=0x418 g_first_done=0x420 g_state=0x424
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// g_evq_lost=0x490 g_evq_tail=0x494 g_evq_head=0x498
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task dump_vars;
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begin
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$display(" [vars] exit=%0d in_level=%0d cur=(r%0d,c%0d) acc=(%0d,%0d) first=%0d state=%0d lost=%0d evq(h=%0d,t=%0d)",
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dut.ram[32'h0004 >> 2], dut.ram[32'h0008 >> 2],
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dut.ram[32'h0418 >> 2], dut.ram[32'h0414 >> 2],
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dut.ram[32'h0410 >> 2], dut.ram[32'h040C >> 2],
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dut.ram[32'h0420 >> 2], dut.ram[32'h0424 >> 2],
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dut.ram[32'h0490 >> 2],
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dut.ram[32'h0498 >> 2], dut.ram[32'h0494 >> 2]);
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end
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endtask
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task dump_fb;
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input [1023:0] fname;
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integer k2, b2;
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begin
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nz_cnt = 0;
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for (k2 = 0; k2 < 300; k2 = k2 + 1)
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for (b2 = 0; b2 < 4; b2 = b2 + 1)
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if (dut.fb[k2][b2*8 +: 8] != 8'h00)
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nz_cnt = nz_cnt + 1;
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cursor_row = dut.u_vga.cursor_i[12:8];
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cursor_col = dut.u_vga.cursor_i[4:0];
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fh = $fopen(fname, "w");
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$fwrite(fh, "# tb_saolei framebuffer dump\n");
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$fwrite(fh, "TIME %0t\n", $time);
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$fwrite(fh, "CURSOR %0d %0d\n", cursor_row, cursor_col);
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$fwrite(fh, "CTRL 0x%02X\n", dut.u_vga.ctrl_i[7:0]);
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$fwrite(fh, "STATS fb_we=%0d nonzero=%0d\n", fb_we_cnt, nz_cnt);
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$fwrite(fh, "FB 1200\n");
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for (w = 0; w < 300; w = w + 1)
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for (b = 0; b < 4; b = b + 1)
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$fwrite(fh, "%02X\n", dut.fb[w][b*8 +: 8]);
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$fclose(fh);
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$display("[tb_saolei] %0t ns dump -> %0s (cursor=%0d,%0d fb_we=%0d nonzero=%0d)",
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$time, fname, cursor_row, cursor_col, fb_we_cnt, nz_cnt);
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dump_vars;
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dump_pc;
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dump_ramwin;
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end
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endtask
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// ---------------------------------------------------------------- 完整一局用的工具
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// 从 RAM 的位图里取一位（mine_bm @0x470 / open_bm @0x450，字内小端）
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function integer bitof;
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input integer base;
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input integer idx;
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begin
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bitof = (dut.ram[(base >> 2) + (idx >> 5)] >> (idx & 31)) & 1;
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end
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endfunction
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// 已揭开格数（直接数 open_bm 的 1），目标 = 256 - 40 = 216
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integer open_n;
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task count_open;
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integer k3;
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begin
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open_n = 0;
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for (k3 = 0; k3 < 256; k3 = k3 + 1)
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open_n = open_n + bitof(32'h0000_0450, k3);
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end
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endtask
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// 快速按键（按住/松开时长都可控）：去抖周期已由 POINTER_SAMPLE_DIV=50 缩短
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task press_t;
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input integer which;
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input integer hold_us;
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input integer gap_us;
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begin
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case (which)
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0:
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go = 1'b1;
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1:
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btnu = 1'b1;
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2:
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btnd = 1'b1;
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3:
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btnl = 1'b1;
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default:
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btnr = 1'b1;
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endcase
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#(hold_us * 1000);
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case (which)
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0:
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go = 1'b0;
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1:
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btnu = 1'b0;
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2:
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btnd = 1'b0;
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3:
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btnl = 1'b0;
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default:
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btnr = 1'b0;
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endcase
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#(gap_us * 1000);
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end
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endtask
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task click_t;
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begin
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press_t(0, 30, 150);
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end
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endtask
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// 把光标移到盘面格 (tr, tc)：每次按键后等软件把事件消化掉再回读位置，
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// 丢了/多了事件都能自动纠正。盘面格 (0,0) 对应网格 (BOARD_R0, BOARD_C0) = (7, 12)。
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task move_to_cell;
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input integer tr;
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input integer tc;
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integer cr, cc2;
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begin
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cr = dut.ram[32'h0418 >> 2];
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cc2 = dut.ram[32'h0414 >> 2];
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while (cr > (7 + tr)) begin
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press_t(1, 20, 120);
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cr = dut.ram[32'h0418 >> 2];
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end
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while (cr < (7 + tr)) begin
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press_t(2, 20, 120);
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cr = dut.ram[32'h0418 >> 2];
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end
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while (cc2 > (12 + tc)) begin
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press_t(3, 20, 120);
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cc2 = dut.ram[32'h0414 >> 2];
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end
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while (cc2 < (12 + tc)) begin
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press_t(4, 20, 120);
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cc2 = dut.ram[32'h0414 >> 2];
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end
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end
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endtask
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// 落位 + 校验：没到位就重试（最多 6 次），彻底避免“以为到了、实际差一格”去点错格
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task goto_cell;
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input integer tr;
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input integer tc;
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integer tries;
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begin
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tries = 0;
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while (((dut.ram[32'h0418 >> 2] != (7 + tr)) || (dut.ram[32'h0414 >> 2] != (12 + tc))) && (tries < 6)) begin
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move_to_cell(tr, tc);
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#(300 * 1000);
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tries = tries + 1;
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end
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if (tries >= 6)
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$display(" [game] !!! 定位 (%0d,%0d) 失败，实际 cur=(%0d,%0d)", tr, tc,
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dut.ram[32'h0418 >> 2], dut.ram[32'h0414 >> 2]);
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end
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endtask
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// 扫完全盘：安全格揭开、雷格插旗；雷区位置直接从 RAM 里的 mine_bm 读
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task sweep_board;
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integer rr, cc, idx;
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begin : sweep_blk
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for (rr = 0; rr < 16; rr = rr + 1) begin
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for (cc = 0; cc < 16; cc = cc + 1) begin
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idx = rr * 16 + cc;
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goto_cell(rr, cc);
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if (bitof(32'h0000_0470, idx) != 0) begin
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sw_flag = 1'b1;
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#(30 * 1000);
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click_t;
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sw_flag = 1'b0;
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#(30 * 1000);
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end
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else
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click_t;
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// 中途退出关卡就立即报警并收手
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if (dut.ram[32'h0008 >> 2] == 0) begin
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$display(" [game] *** 在盘面 (%0d,%0d) 处退出了关卡！cur=(%0d,%0d) state=%0d",
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rr, cc, dut.ram[32'h0418 >> 2], dut.ram[32'h0414 >> 2],
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dut.ram[32'h0424 >> 2]);
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disable sweep_blk;
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end
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// 赢了/输了也收手
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if (dut.ram[32'h0424 >> 2] != 0)
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disable sweep_blk;
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end
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count_open;
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$display(" [game] 第 %0d 行扫完：已揭开 %0d / 216, state=%0d, 旗=%0d, cur=(%0d,%0d)",
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rr, open_n, dut.ram[32'h0424 >> 2], dut.ram[32'h0428 >> 2],
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dut.ram[32'h0418 >> 2], dut.ram[32'h0414 >> 2]);
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if (rr == 3)
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dump_fb("fb_10_sweep_a.txt");
|
||
if (rr == 7)
|
||
dump_fb("fb_11_sweep_b.txt");
|
||
if (rr == 11)
|
||
dump_fb("fb_12_sweep_c.txt");
|
||
end
|
||
end
|
||
endtask
|
||
|
||
// ---------------------------------------------------------------- 主流程
|
||
initial begin
|
||
$display("[tb_saolei] === start (SAOLEI_ROM)：完整一局 ===");
|
||
#2000;
|
||
rst_n = 1'b1;
|
||
|
||
// 1) 开始界面
|
||
#(2 * 1000000);
|
||
dump_fb("fb_00_start.txt");
|
||
|
||
// 2) 点 START（光标初始就停在按钮上）-> 写 LEVEL -> IRQ1 进关卡
|
||
click_t;
|
||
#(2 * 1000000);
|
||
dump_fb("fb_01_level.txt");
|
||
$display(" [game] 进关卡：in_level=%0d state=%0d", dut.ram[32'h0008 >> 2], dut.ram[32'h0424 >> 2]);
|
||
|
||
// 3) 关卡内点盘面中心一格：放雷 + 首次展开（第一下必安全）
|
||
click;
|
||
#(3 * 1000000);
|
||
dump_fb("fb_02_firstclick.txt");
|
||
count_open;
|
||
$display(" [game] 首次点击后：first=%0d 已揭开 %0d / 216 state=%0d",
|
||
dut.ram[32'h0420 >> 2], open_n, dut.ram[32'h0424 >> 2]);
|
||
|
||
// 4) 蛇形扫完全盘：揭开全部 216 个安全格 + 给 40 颗雷插旗 -> 目标通关
|
||
sweep_board;
|
||
#(3 * 1000000);
|
||
dump_fb("fb_13_after_sweep.txt");
|
||
count_open;
|
||
$display(" [game] 扫完后：已揭开 %0d / 216, 旗=%0d, state=%0d, 丢事件=%0d",
|
||
open_n, dut.ram[32'h0428 >> 2], dut.ram[32'h0424 >> 2], dut.ram[32'h0490 >> 2]);
|
||
|
||
// 5) 通关后再点一下 = 返回背景（回到开始界面）
|
||
click_t;
|
||
#(3 * 1000000);
|
||
dump_fb("fb_14_back_to_start.txt");
|
||
|
||
$display(" [game] === 结束：state=%0d（1=WIN 2=LOSE）已揭开 %0d/216 旗=%0d 丢事件=%0d ===",
|
||
dut.ram[32'h0424 >> 2], open_n, dut.ram[32'h0428 >> 2], dut.ram[32'h0490 >> 2]);
|
||
$finish;
|
||
end
|
||
|
||
endmodule
|