// Generated by CIRCT firtool-1.62.0 // VCS coverage exclude_file module regfile_32x32( input [4:0] R0_addr, input R0_en, R0_clk, output [31:0] R0_data, input [4:0] R1_addr, input R1_en, R1_clk, output [31:0] R1_data, input [4:0] W0_addr, input W0_en, W0_clk, input [31:0] W0_data ); reg [31:0] Memory[0:31]; always @(posedge W0_clk) begin if (W0_en & 1'h1) Memory[W0_addr] <= W0_data; end // always @(posedge) assign R0_data = R0_en ? Memory[R0_addr] : 32'bx; assign R1_data = R1_en ? Memory[R1_addr] : 32'bx; endmodule module Core( input clock, reset, output [31:0] io_imem_addr, input [31:0] io_imem_inst, output [31:0] io_dmem_addr, input [31:0] io_dmem_rdata, output io_dmem_wen, output [31:0] io_dmem_wdata, output io_exit ); wire exe_jmp_flg; wire exe_br_flg; wire [31:0] _regfile_ext_R0_data; wire [31:0] _regfile_ext_R1_data; reg [31:0] id_reg_pc; reg [31:0] id_reg_inst; reg [31:0] exe_reg_pc; reg [4:0] exe_reg_wb_addr; reg [31:0] exe_reg_op1_data; reg [31:0] exe_reg_op2_data; reg [31:0] exe_reg_rt_data; reg [4:0] exe_reg_exe_fun; reg [1:0] exe_reg_mem_wen; reg [1:0] exe_reg_rf_wen; reg [2:0] exe_reg_wb_sel; reg [31:0] exe_reg_imm_i_sext; reg [31:0] mem_reg_pc; reg [4:0] mem_reg_wb_addr; reg [31:0] mem_reg_rt_data; reg [1:0] mem_reg_mem_wen; reg [1:0] mem_reg_rf_wen; reg [2:0] mem_reg_wb_sel; reg [31:0] mem_reg_alu_out; reg [4:0] wb_reg_wb_addr; reg [1:0] wb_reg_rf_wen; reg [31:0] wb_reg_wb_data; reg [31:0] if_reg_pc; wire _id_inst_T = exe_br_flg | exe_jmp_flg; wire _id_rt_data_T_2 = exe_reg_rf_wen == 2'h1; wire stall_flg = _id_rt_data_T_2 & (|(id_reg_inst[25:21])) & id_reg_inst[25:21] == exe_reg_wb_addr | _id_rt_data_T_2 & (|(id_reg_inst[20:16])) & id_reg_inst[20:16] == exe_reg_wb_addr; wire [31:0] id_inst = _id_inst_T | stall_flg ? 32'h20000000 : id_reg_inst; wire _id_rt_data_T_8 = wb_reg_rf_wen == 2'h1; wire _exe_alu_out_T = exe_reg_exe_fun == 5'h1; wire [31:0] _exe_alu_out_T_1 = exe_reg_op1_data + exe_reg_op2_data; wire _exe_alu_out_T_3 = exe_reg_exe_fun == 5'h2; wire [31:0] _exe_alu_out_T_4 = exe_reg_op1_data - exe_reg_op2_data; wire _exe_alu_out_T_6 = exe_reg_exe_fun == 5'h3; wire [31:0] _exe_alu_out_T_7 = exe_reg_op1_data & exe_reg_op2_data; wire _exe_alu_out_T_8 = exe_reg_exe_fun == 5'h4; wire [31:0] _exe_alu_out_T_9 = exe_reg_op1_data | exe_reg_op2_data; wire _exe_alu_out_T_10 = exe_reg_exe_fun == 5'h5; wire [31:0] _exe_alu_out_T_11 = exe_reg_op1_data ^ exe_reg_op2_data; wire _exe_alu_out_T_12 = exe_reg_exe_fun == 5'h6; wire [62:0] _exe_alu_out_T_14 = {31'h0, exe_reg_op1_data} << exe_reg_op2_data[4:0]; wire _exe_alu_out_T_16 = exe_reg_exe_fun == 5'h7; wire [31:0] _GEN = {27'h0, exe_reg_op2_data[4:0]}; wire [31:0] _exe_alu_out_T_18 = exe_reg_op1_data >> _GEN; wire _exe_alu_out_T_19 = exe_reg_exe_fun == 5'h8; wire [31:0] _exe_alu_out_T_22 = $signed($signed(exe_reg_op1_data) >>> _GEN); wire _exe_alu_out_T_24 = exe_reg_exe_fun == 5'h9; wire _exe_alu_out_T_28 = exe_reg_exe_fun == 5'hD; wire [31:0] _exe_alu_out_T_29 = _exe_alu_out_T_28 ? exe_reg_op1_data : 32'h0; wire [31:0] _GEN_0 = {31'h0, $signed(exe_reg_op1_data) < $signed(exe_reg_op2_data)}; wire [31:0] exe_alu_out = _exe_alu_out_T ? _exe_alu_out_T_1 : _exe_alu_out_T_3 ? _exe_alu_out_T_4 : _exe_alu_out_T_6 ? _exe_alu_out_T_7 : _exe_alu_out_T_8 ? _exe_alu_out_T_9 : _exe_alu_out_T_10 ? _exe_alu_out_T_11 : _exe_alu_out_T_12 ? _exe_alu_out_T_14[31:0] : _exe_alu_out_T_16 ? _exe_alu_out_T_18 : _exe_alu_out_T_19 ? _exe_alu_out_T_22 : _exe_alu_out_T_24 ? _GEN_0 : _exe_alu_out_T_29; assign exe_br_flg = exe_reg_exe_fun == 5'hB ? exe_reg_op1_data == exe_reg_op2_data : exe_reg_exe_fun == 5'hC & exe_reg_op1_data != exe_reg_op2_data; assign exe_jmp_flg = exe_reg_wb_sel == 3'h3; wire [31:0] mem_wb_data = mem_reg_wb_sel == 3'h2 ? io_dmem_rdata : mem_reg_wb_sel == 3'h3 ? mem_reg_pc + 32'h4 : mem_reg_alu_out; always @(posedge clock) begin if (reset) begin id_reg_pc <= 32'h0; id_reg_inst <= 32'h0; exe_reg_pc <= 32'h0; exe_reg_wb_addr <= 5'h0; exe_reg_op1_data <= 32'h0; exe_reg_op2_data <= 32'h0; exe_reg_rt_data <= 32'h0; exe_reg_exe_fun <= 5'h0; exe_reg_mem_wen <= 2'h0; exe_reg_rf_wen <= 2'h0; exe_reg_wb_sel <= 3'h0; exe_reg_imm_i_sext <= 32'h0; mem_reg_pc <= 32'h0; mem_reg_wb_addr <= 5'h0; mem_reg_rt_data <= 32'h0; mem_reg_mem_wen <= 2'h0; mem_reg_rf_wen <= 2'h0; mem_reg_wb_sel <= 3'h0; mem_reg_alu_out <= 32'h0; wb_reg_wb_addr <= 5'h0; wb_reg_rf_wen <= 2'h0; wb_reg_wb_data <= 32'h0; if_reg_pc <= 32'h0; end else begin automatic logic _id_rt_data_T_5; automatic logic _id_rt_data_T; automatic logic _id_rt_data_T_3; automatic logic _id_rt_data_T_6; automatic logic _id_rt_data_T_9; automatic logic [31:0] id_imm_i_sext; automatic logic _csignals_T_1 = id_inst[31:26] == 6'h23; automatic logic _csignals_T_3; automatic logic [11:0] _GEN_1 = {id_inst[31:26], id_inst[5:0]}; automatic logic _csignals_T_5 = _GEN_1 == 12'h20; automatic logic _csignals_T_7 = id_inst[31:26] == 6'h8; automatic logic _csignals_T_9; automatic logic _csignals_T_11; automatic logic _csignals_T_13; automatic logic _csignals_T_15; automatic logic _csignals_T_17; automatic logic _csignals_T_19; automatic logic _csignals_T_21; automatic logic _csignals_T_23; automatic logic _csignals_T_25; automatic logic [16:0] _GEN_2 = {id_inst[31:21], id_inst[5:0]}; automatic logic _csignals_T_27; automatic logic _csignals_T_29; automatic logic _csignals_T_31; automatic logic _csignals_T_33; automatic logic _csignals_T_35; automatic logic _GEN_3; automatic logic _GEN_4; automatic logic [1:0] csignals_1; automatic logic [2:0] csignals_2; automatic logic _GEN_5; automatic logic _GEN_6; _id_rt_data_T_5 = mem_reg_rf_wen == 2'h1; _id_rt_data_T = id_inst[20:16] == 5'h0; _id_rt_data_T_3 = id_inst[20:16] == exe_reg_wb_addr & _id_rt_data_T_2; _id_rt_data_T_6 = id_inst[20:16] == mem_reg_wb_addr & _id_rt_data_T_5; _id_rt_data_T_9 = id_inst[20:16] == wb_reg_wb_addr & _id_rt_data_T_8; id_imm_i_sext = {{16{id_inst[15]}}, id_inst[15:0]}; _csignals_T_3 = id_inst[31:26] == 6'h2B; _csignals_T_9 = _GEN_1 == 12'h22; _csignals_T_11 = _GEN_1 == 12'h24; _csignals_T_13 = _GEN_1 == 12'h25; _csignals_T_15 = _GEN_1 == 12'h26; _csignals_T_17 = id_inst[31:26] == 6'hC; _csignals_T_19 = id_inst[31:26] == 6'hD; _csignals_T_21 = _GEN_1 == 12'h2A; _csignals_T_23 = id_inst[31:26] == 6'h4; _csignals_T_25 = id_inst[31:26] == 6'h5; _csignals_T_27 = _GEN_2 == 17'h0; _csignals_T_29 = _GEN_2 == 17'h2; _csignals_T_31 = _GEN_2 == 17'h3; _csignals_T_33 = id_inst[31:26] == 6'h3; _csignals_T_35 = _GEN_1 == 12'h8; _GEN_3 = _csignals_T_27 | _csignals_T_29 | _csignals_T_31; _GEN_4 = _csignals_T_21 | _csignals_T_23 | _csignals_T_25 | _GEN_3; csignals_1 = _csignals_T_1 | _csignals_T_3 | _csignals_T_5 | _csignals_T_7 | _csignals_T_9 | _csignals_T_11 | _csignals_T_13 | _csignals_T_15 | _csignals_T_17 | _csignals_T_19 | _GEN_4 | ~_csignals_T_33 ? 2'h1 : 2'h2; csignals_2 = _csignals_T_1 | _csignals_T_3 ? 3'h2 : _csignals_T_5 ? 3'h1 : _csignals_T_7 ? 3'h2 : _csignals_T_9 | _csignals_T_11 | _csignals_T_13 | _csignals_T_15 ? 3'h1 : _csignals_T_17 | _csignals_T_19 ? 3'h2 : _GEN_4 ? 3'h1 : _csignals_T_33 ? 3'h4 : {2'h0, ~_csignals_T_35}; _GEN_5 = _csignals_T_23 | _csignals_T_25; _GEN_6 = _csignals_T_5 | _csignals_T_7 | _csignals_T_9 | _csignals_T_11 | _csignals_T_13 | _csignals_T_15 | _csignals_T_17 | _csignals_T_19 | _csignals_T_21; if (~stall_flg) id_reg_pc <= if_reg_pc; if (_id_inst_T) id_reg_inst <= 32'h20000000; else if (~stall_flg) id_reg_inst <= io_imem_inst; exe_reg_pc <= id_reg_pc; if ((_csignals_T_1 ? 3'h2 : _csignals_T_3 ? 3'h0 : _GEN_6 ? 3'h1 : _GEN_5 ? 3'h0 : _GEN_3 ? 3'h1 : _csignals_T_33 ? 3'h3 : 3'h0) == 3'h1 & id_inst[31:26] == 6'h0) exe_reg_wb_addr <= id_inst[15:11]; else if (id_inst[31:26] == 6'h3) exe_reg_wb_addr <= 5'h1F; else exe_reg_wb_addr <= id_inst[20:16]; if (csignals_1 == 2'h1) begin if (id_inst[25:21] == 5'h0) exe_reg_op1_data <= 32'h0; else if (id_inst[25:21] == exe_reg_wb_addr & _id_rt_data_T_2) begin if (_exe_alu_out_T) exe_reg_op1_data <= _exe_alu_out_T_1; else if (_exe_alu_out_T_3) exe_reg_op1_data <= _exe_alu_out_T_4; else if (_exe_alu_out_T_6) exe_reg_op1_data <= _exe_alu_out_T_7; else if (_exe_alu_out_T_8) exe_reg_op1_data <= _exe_alu_out_T_9; else if (_exe_alu_out_T_10) exe_reg_op1_data <= _exe_alu_out_T_11; else if (_exe_alu_out_T_12) exe_reg_op1_data <= _exe_alu_out_T_14[31:0]; else if (_exe_alu_out_T_16) exe_reg_op1_data <= _exe_alu_out_T_18; else if (_exe_alu_out_T_19) exe_reg_op1_data <= _exe_alu_out_T_22; else if (_exe_alu_out_T_24) exe_reg_op1_data <= _GEN_0; else if (~_exe_alu_out_T_28) exe_reg_op1_data <= 32'h0; end else if (id_inst[25:21] == mem_reg_wb_addr & _id_rt_data_T_5) exe_reg_op1_data <= mem_wb_data; else if (id_inst[25:21] == wb_reg_wb_addr & _id_rt_data_T_8) exe_reg_op1_data <= wb_reg_wb_data; else exe_reg_op1_data <= _regfile_ext_R1_data; end else if (csignals_1 == 2'h2) exe_reg_op1_data <= id_reg_pc; else exe_reg_op1_data <= 32'h0; if (csignals_2 == 3'h1) begin if (_id_rt_data_T) exe_reg_op2_data <= 32'h0; else if (_id_rt_data_T_3) begin if (_exe_alu_out_T) exe_reg_op2_data <= _exe_alu_out_T_1; else if (_exe_alu_out_T_3) exe_reg_op2_data <= _exe_alu_out_T_4; else if (_exe_alu_out_T_6) exe_reg_op2_data <= _exe_alu_out_T_7; else if (_exe_alu_out_T_8) exe_reg_op2_data <= _exe_alu_out_T_9; else if (_exe_alu_out_T_10) exe_reg_op2_data <= _exe_alu_out_T_11; else if (_exe_alu_out_T_12) exe_reg_op2_data <= _exe_alu_out_T_14[31:0]; else if (_exe_alu_out_T_16) exe_reg_op2_data <= _exe_alu_out_T_18; else if (_exe_alu_out_T_19) exe_reg_op2_data <= _exe_alu_out_T_22; else if (_exe_alu_out_T_24) exe_reg_op2_data <= _GEN_0; else exe_reg_op2_data <= _exe_alu_out_T_29; end else if (_id_rt_data_T_6) exe_reg_op2_data <= mem_wb_data; else if (_id_rt_data_T_9) exe_reg_op2_data <= wb_reg_wb_data; else exe_reg_op2_data <= _regfile_ext_R0_data; end else if (csignals_2 == 3'h2) exe_reg_op2_data <= id_imm_i_sext; else if (csignals_2 == 3'h4) exe_reg_op2_data <= {4'h0, id_inst[25:0], 2'h0}; else exe_reg_op2_data <= 32'h0; exe_reg_rt_data <= _id_rt_data_T ? 32'h0 : _id_rt_data_T_3 ? exe_alu_out : _id_rt_data_T_6 ? mem_wb_data : _id_rt_data_T_9 ? wb_reg_wb_data : _regfile_ext_R0_data; if (_csignals_T_1 | _csignals_T_3 | _csignals_T_5 | _csignals_T_7) exe_reg_exe_fun <= 5'h1; else if (_csignals_T_9) exe_reg_exe_fun <= 5'h2; else if (_csignals_T_11) exe_reg_exe_fun <= 5'h3; else if (_csignals_T_13) exe_reg_exe_fun <= 5'h4; else if (_csignals_T_15) exe_reg_exe_fun <= 5'h5; else if (_csignals_T_17) exe_reg_exe_fun <= 5'h3; else if (_csignals_T_19) exe_reg_exe_fun <= 5'h4; else if (_csignals_T_21) exe_reg_exe_fun <= 5'h9; else if (_csignals_T_23) exe_reg_exe_fun <= 5'hB; else if (_csignals_T_25) exe_reg_exe_fun <= 5'hC; else if (_csignals_T_27) exe_reg_exe_fun <= 5'h6; else if (_csignals_T_29) exe_reg_exe_fun <= 5'h7; else if (_csignals_T_31) exe_reg_exe_fun <= 5'h8; else if (_csignals_T_33) exe_reg_exe_fun <= 5'h1; else if (_csignals_T_35) exe_reg_exe_fun <= 5'hD; else exe_reg_exe_fun <= 5'h0; exe_reg_mem_wen <= _csignals_T_1 ? 2'h0 : {1'h0, _csignals_T_3}; if (_csignals_T_1) begin exe_reg_rf_wen <= 2'h1; exe_reg_wb_sel <= 3'h2; end else if (_csignals_T_3) begin exe_reg_rf_wen <= 2'h0; exe_reg_wb_sel <= 3'h0; end else if (_GEN_6) begin exe_reg_rf_wen <= 2'h1; exe_reg_wb_sel <= 3'h1; end else if (_GEN_5) begin exe_reg_rf_wen <= 2'h0; exe_reg_wb_sel <= 3'h0; end else begin exe_reg_rf_wen <= {1'h0, _csignals_T_27 | _csignals_T_29 | _csignals_T_31 | _csignals_T_33}; if (_GEN_3) exe_reg_wb_sel <= 3'h1; else if (_csignals_T_33) exe_reg_wb_sel <= 3'h3; else exe_reg_wb_sel <= 3'h0; end exe_reg_imm_i_sext <= id_imm_i_sext; mem_reg_pc <= exe_reg_pc; mem_reg_wb_addr <= exe_reg_wb_addr; mem_reg_rt_data <= exe_reg_rt_data; mem_reg_mem_wen <= exe_reg_mem_wen; mem_reg_rf_wen <= exe_reg_rf_wen; mem_reg_wb_sel <= exe_reg_wb_sel; mem_reg_alu_out <= exe_alu_out; wb_reg_wb_addr <= mem_reg_wb_addr; wb_reg_rf_wen <= mem_reg_rf_wen; wb_reg_wb_data <= mem_wb_data; if (exe_br_flg) if_reg_pc <= {exe_reg_imm_i_sext[29:0], 2'h0} + exe_reg_pc; else if (exe_jmp_flg) if_reg_pc <= exe_alu_out; else if (~stall_flg) if_reg_pc <= if_reg_pc + 32'h4; end end // always @(posedge) regfile_32x32 regfile_ext ( .R0_addr (id_inst[20:16]), .R0_en (1'h1), .R0_clk (clock), .R0_data (_regfile_ext_R0_data), .R1_addr (id_inst[25:21]), .R1_en (1'h1), .R1_clk (clock), .R1_data (_regfile_ext_R1_data), .W0_addr (wb_reg_wb_addr), .W0_en (_id_rt_data_T_8 & (|wb_reg_wb_addr)), .W0_clk (clock), .W0_data (wb_reg_wb_data) ); assign io_imem_addr = if_reg_pc; assign io_dmem_addr = mem_reg_alu_out; assign io_dmem_wen = mem_reg_mem_wen[0]; assign io_dmem_wdata = mem_reg_rt_data; assign io_exit = id_reg_inst == 32'h114514; endmodule // VCS coverage exclude_file module mem_64x32( input [5:0] R0_addr, input R0_en, R0_clk, output [31:0] R0_data, input [5:0] R1_addr, input R1_en, R1_clk, output [31:0] R1_data, input [5:0] W0_addr, input W0_en, W0_clk, input [31:0] W0_data ); reg [31:0] Memory[0:63]; always @(posedge W0_clk) begin if (W0_en & 1'h1) Memory[W0_addr] <= W0_data; end // always @(posedge) `ifdef ENABLE_INITIAL_MEM_ initial $readmemh("src/hex/mem.dat", Memory); `endif // ENABLE_INITIAL_MEM_ assign R0_data = R0_en ? Memory[R0_addr] : 32'bx; assign R1_data = R1_en ? Memory[R1_addr] : 32'bx; endmodule module Memory( input clock, input [31:0] io_imem_addr, output [31:0] io_imem_inst, input [31:0] io_dmem_addr, output [31:0] io_dmem_rdata, input io_dmem_wen, input [31:0] io_dmem_wdata ); mem_64x32 mem_ext ( .R0_addr (io_imem_addr[7:2]), .R0_en (1'h1), .R0_clk (clock), .R0_data (io_imem_inst), .R1_addr (io_dmem_addr[7:2]), .R1_en (1'h1), .R1_clk (clock), .R1_data (io_dmem_rdata), .W0_addr (io_dmem_addr[7:2]), .W0_en (io_dmem_wen), .W0_clk (clock), .W0_data (io_dmem_wdata) ); endmodule module TopOrigin( input clock, reset, output io_exit ); wire [31:0] _memory_io_imem_inst; wire [31:0] _memory_io_dmem_rdata; wire [31:0] _core_io_imem_addr; wire [31:0] _core_io_dmem_addr; wire _core_io_dmem_wen; wire [31:0] _core_io_dmem_wdata; Core core ( .clock (clock), .reset (reset), .io_imem_addr (_core_io_imem_addr), .io_imem_inst (_memory_io_imem_inst), .io_dmem_addr (_core_io_dmem_addr), .io_dmem_rdata (_memory_io_dmem_rdata), .io_dmem_wen (_core_io_dmem_wen), .io_dmem_wdata (_core_io_dmem_wdata), .io_exit (io_exit) ); Memory memory ( .clock (clock), .io_imem_addr (_core_io_imem_addr), .io_imem_inst (_memory_io_imem_inst), .io_dmem_addr (_core_io_dmem_addr), .io_dmem_rdata (_memory_io_dmem_rdata), .io_dmem_wen (_core_io_dmem_wen), .io_dmem_wdata (_core_io_dmem_wdata) ); endmodule