fix1
Co-authored-by: cxy004 <cxy004@qq.com> Co-authored-by: Hooo1941 <Hooo1941@users.noreply.github.com>
This commit is contained in:
parent
834f6e446b
commit
b33c1a2297
@ -89,6 +89,8 @@ wire [3 :0] debug_wb1_rf_wen;
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wire [4 :0] debug_wb1_rf_wnum;
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wire [31:0] debug_wb1_rf_wdata;
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wire debug_wb_pc_A;
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//clk and resetn
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wire cpu_clk;
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wire sys_clk;
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@ -378,7 +380,9 @@ mycpu_top u_cpu(
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.debug_wb1_pc (debug_wb1_pc ),
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.debug_wb1_rf_wen (debug_wb1_rf_wen ),
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.debug_wb1_rf_wnum (debug_wb1_rf_wnum ),
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.debug_wb1_rf_wdata(debug_wb1_rf_wdata)
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.debug_wb1_rf_wdata(debug_wb1_rf_wdata),
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.debug_wb_pc_A (debug_wb_pc_A)
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);
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//cpu axi wrap
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axi_wrap u_cpu_axi_wrap(
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@ -1,5 +1,6 @@
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`timescale 1ns / 1ps
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`define SIMULATION_PC
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`define TRACE_REF_FILE "../../../../../../../cpu132_gettrace/golden_trace.txt"
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`define CONFREG_NUM_REG soc_lite.u_confreg.num_data
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`define CONFREG_OPEN_TRACE soc_lite.u_confreg.open_trace
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@ -113,7 +114,6 @@ module tb2_top ();
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TRACE_INFO ref_trace[$];
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initial begin
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ref_trace.clear();
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while (!$feof(
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trace_ref
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)) begin
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@ -135,7 +135,7 @@ module tb2_top ();
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logic [ 4:0] dbg_1_rf_wnum;
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logic [31:0] dbg_1_rf_wdata;
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always_ff @(posedge cpu_clk) begin
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always @(posedge cpu_clk) begin
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#2;
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if (!resetn) begin
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debug_wb_err <= 1'b0;
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@ -163,16 +163,16 @@ module tb2_top ();
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end
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if (|dbg_0_rf_wen && dbg_0_rf_wnum != 5'd0) begin
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if ( (dbg_0_pc !== ref_trace[0].ref_wb_pc )
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|| (dbg_0_rf_wnum !== ref_trace[0].ref_wb_rf_wnum )
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|| (dbg_0_rf_wdata !== ref_trace[0].ref_wb_rf_wdata_v)
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if ( (dbg_0_pc !== ref_trace[0].ref_wb_pc )
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|| (dbg_0_rf_wnum !== ref_trace[0].ref_wb_rf_wnum )
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|| (dbg_0_rf_wdata !== ref_trace[0].ref_wb_rf_wdata)
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)
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begin
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$display("--------------------------------------------------------------");
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$display("[%t] Error!!!", $time);
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$display(" reference: PC = 0x%8h, wb_rf_wnum = 0x%2h, wb_rf_wdata = 0x%8h",
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ref_trace[0].ref_wb_pc, ref_trace[0].ref_wb_rf_wnum,
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ref_trace[0].ref_wb_rf_wdata_v);
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ref_trace[0].ref_wb_rf_wdata);
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$display(" mycpu : PC = 0x%8h, wb_rf_wnum = 0x%2h, wb_rf_wdata = 0x%8h", dbg_0_pc,
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dbg_0_rf_wnum, dbg_0_rf_wdata);
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$display("--------------------------------------------------------------");
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@ -181,16 +181,16 @@ module tb2_top ();
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$finish;
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end else ref_trace.pop_front();
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end else if (|dbg_1_rf_wen && dbg_1_rf_wnum != 5'd0) begin
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if ( (dbg_1_pc !== ref_trace[0].ref_wb_pc )
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|| (dbg_1_rf_wnum !== ref_trace[0].ref_wb_rf_wnum )
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|| (dbg_1_rf_wdata !== ref_trace[0].ref_wb_rf_wdata_v)
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if ( (dbg_1_pc !== ref_trace[0].ref_wb_pc )
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|| (dbg_1_rf_wnum !== ref_trace[0].ref_wb_rf_wnum )
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|| (dbg_1_rf_wdata !== ref_trace[0].ref_wb_rf_wdata)
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)
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begin
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$display("--------------------------------------------------------------");
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$display("[%t] Error!!!", $time);
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$display(" reference: PC = 0x%8h, wb_rf_wnum = 0x%2h, wb_rf_wdata = 0x%8h",
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ref_trace[0].ref_wb_pc, ref_trace[0].ref_wb_rf_wnum,
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ref_trace[0].ref_wb_rf_wdata_v);
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ref_trace[0].ref_wb_rf_wdata);
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$display(" mycpu : PC = 0x%8h, wb_rf_wnum = 0x%2h, wb_rf_wdata = 0x%8h", dbg_1_pc,
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dbg_1_rf_wnum, dbg_1_rf_wdata);
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$display("--------------------------------------------------------------");
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@ -246,7 +246,7 @@ module tb2_top ();
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end
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end
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//模拟串口打印
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//妯℃嫙涓插彛鎵撳嵃
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logic uart_display;
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logic [7:0] uart_data;
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assign uart_display = `CONFREG_UART_DISPLAY;
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@ -265,7 +265,7 @@ module tb2_top ();
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//test end
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logic global_err = debug_wb_err || (err_count != 8'd0);
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logic test_end = (dbg_0_pc == `END_PC) || (dbg_1_pc == `END_PC) || (uart_display && uart_data == 8'hff);
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always_ff @(posedge cpu_clk) begin
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always @(posedge cpu_clk) begin
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if (!resetn) begin
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debug_end <= 1'b0;
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end else if (test_end && !debug_end) begin
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@ -87,6 +87,9 @@ module AXI (
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inst.addr_ok = 1'b0;
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rdata.addr_ok = 1'b0;
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end
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end else begin
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inst.addr_ok = 1'b0;
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rdata.addr_ok = 1'b0;
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end
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end
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@ -17,8 +17,8 @@ module Controller (
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);
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mux3 #(32) imm_mux (
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{{16{inst[15]}}, inst[15:0]},
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{16'b0, inst[15:0]},
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{{16{inst[15]}}, inst[15:0]},
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{inst[15:0], 16'b0},
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{inst[28] & inst[27] & inst[26], inst[31] | ~inst[28]},
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imm
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@ -34,18 +34,16 @@ module Controller (
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assign ctrl.RS = inst[25:21];
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assign ctrl.RT = inst[20:16];
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assign ctrl.PFCtrl.PCS = {
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assign ctrl.PFCtrl.PCS = PCS_t'({
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~inst[28] & (~inst[27] & ~inst[26] & ~inst[31] & ~inst[30] & ~inst[29] & inst[3] & ~inst[4] & ~inst[5] | inst[27] & ~inst[29] & ~inst[31]),
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~inst[26] & (~inst[27] & inst[28] & ~inst[31] & ~inst[29] & eq | inst[27] & ~inst[29] & (~inst[28] | eq & ltz)) | inst[26] & ~inst[29] & ~inst[31] & (~inst[27] & ~inst[30] & (~inst[28] & (~ltz & inst[16] | ltz & ~inst[16]) | inst[28] & ~eq) | inst[27] & (~inst[28] | ~eq | ~ltz))
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};
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});
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assign ctrl.PFCtrl.BJRJ = ~inst[26] & (~inst[27] & (~inst[28] & ~inst[30] & ~inst[31] & ~inst[29] & inst[3] & ~inst[4] & ~inst[5] & ~inst[2] | inst[28] & ~inst[31] & ~inst[29]) | inst[27] & ~inst[29]) | inst[26] & ~inst[29] & ~inst[31];
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assign ctrl.PFCtrl.BJR = ~inst[26] & (~inst[28] & ~inst[30] & ~inst[29] & ~inst[31] & ~inst[27] & inst[3] & ~inst[4] & ~inst[5] & ~inst[2] | inst[28] & ~inst[29] & ~inst[31]) | inst[26] & ~inst[29] & ~inst[31] & (~inst[27] | inst[27] & inst[28]);
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assign ctrl.PFCtrl.BE = inst[28] & ~inst[29] & ~inst[31] & ~inst[27];
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assign ctrl.DCtrl.DP0 = ~inst[31];
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assign ctrl.DCtrl.DP1 = ~inst[30] & (~inst[26] & (~inst[29] & (~inst[28] & (~inst[31] & (~inst[27] & ~inst[4] | inst[27]) | inst[31]) | inst[28]) | inst[29]) | inst[26]) | inst[30] & inst[25];
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assign ctrl.DCtrl.UI = inst[28] & inst[27] & inst[26];
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assign ctrl.DCtrl.IX = ~inst[28] | inst[28] & inst[31];
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assign ctrl.ECtrl.OP.f_sr = ~inst[31] & ~inst[29] & ~inst[28] & ~inst[27] & ~inst[26] & ~inst[5] & ~inst[3] & (~inst[2] | inst[1]);
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assign ctrl.ECtrl.OP.f_sl = ~inst[31] & ~inst[29] & ~inst[28] & ~inst[27] & ~inst[26] & ~inst[5] & ~inst[3] & inst[2] & ~inst[1];
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@ -56,25 +54,25 @@ module Controller (
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assign ctrl.ECtrl.OP.f_xor = ~inst[31] & ~inst[26] & (~inst[28] & ~inst[27] & ~inst[29] & inst[5] & inst[2] & ~inst[0] & inst[1] | inst[28] & inst[27]);
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assign ctrl.ECtrl.OP.f_or = ~inst[31] & (~inst[26] & ~inst[28] & ~inst[27] & ~inst[29] & inst[5] & inst[2] & inst[0] | inst[26] & inst[29] & inst[28] & ~inst[27]);
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assign ctrl.ECtrl.OP.alt = ~inst[31] & (~inst[26] & (~inst[29] & inst[1] & (inst[0] | inst[5]) | inst[27]) | inst[26] & inst[27] & inst[29] & ~inst[28]);
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assign ctrl.ECtrl.SA = {
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assign ctrl.ECtrl.SA = SA_t'({
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((~inst[26] & ~inst[28] & (~inst[27] & ((~inst[2] & inst[3] & inst[4] | inst[2] & ~inst[3]) | inst[5]) | inst[30]) | inst[31]) | inst[29]),
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~inst[30] & ((~inst[29] & (inst[3] | inst[2] | inst[4] | inst[5] | inst[27] | inst[28] | inst[26]) | inst[29] & (~inst[28] | ~inst[27] | ~inst[26])) | inst[31])
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};
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assign ctrl.ECtrl.SB = {
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});
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assign ctrl.ECtrl.SB = SB_t'({
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((inst[30] | inst[31]) | inst[29]),
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(~inst[5] & (~inst[1] & (~inst[0] & (~inst[3] & inst[4] | inst[3] & ~inst[4]) | inst[0] & (~inst[4] | ~inst[3])) | inst[1] & inst[4] & ~inst[3]) | inst[27] | inst[31] | inst[28] | inst[30] | inst[29] | inst[26])
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};
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});
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assign ctrl.MCtrl0.HW = ~inst[26] & ~inst[29] & ~inst[30] & ~inst[28] & ~inst[27] & inst[4] & (~inst[1] & inst[0] | inst[3]);
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assign ctrl.MCtrl0.LW = ~inst[26] & ~inst[29] & ~inst[30] & ~inst[28] & ~inst[27] & inst[4] & (inst[1] & inst[0] | inst[3]);
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assign ctrl.MCtrl0.HLS = {~inst[3], inst[1:0]};
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assign ctrl.MCtrl0.HLS = HLS_t'({~inst[3], inst[1:0]});
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assign ctrl.MCtrl0.C0D = inst[15:11];
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assign ctrl.MCtrl0.C0W = inst[30] & inst[23];
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assign ctrl.MCtrl0.RS0 = {
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assign ctrl.MCtrl0.RS0 = RS0_t'({
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(~inst[29] & ~inst[26] & inst[4] & ~inst[1] | inst[30]),
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(~inst[28] & (~inst[4] | inst[26]) | inst[29])
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};
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});
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assign ctrl.MCtrl1.MR = inst[31];
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assign ctrl.MCtrl1.MWR = inst[29];
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@ -55,6 +55,9 @@ module Datapath (
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word_t PF_pcjr;
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word_t PF_pc0;
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// F
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logic F_valid;
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// Instr Queue
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logic IQ_IA_valid;
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word_t IQ_IA_inst;
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@ -175,11 +178,6 @@ module Datapath (
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logic M_I0_FT_W_I1;
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word_t M_I0_ForwardT;
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logic M_I1_FT_M_I0;
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logic M_I1_FT_W_I0;
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logic M_I1_FT_W_I1;
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word_t M_I1_ForwardT;
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word_t HI;
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word_t LO;
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@ -205,7 +203,7 @@ module Datapath (
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C0_EPC,
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`PCEXC,
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`PCRST,
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{rst, C0_exception.ExcValid, C0_exception.ERET, ~D_IA_valid},
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{~F_valid, C0_exception.ExcValid, C0_exception.ERET, ~D_IA_valid},
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PF.pc
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);
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@ -216,7 +214,12 @@ module Datapath (
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assign PF_go = PF.pc[1:0] == 2'b00
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& ~D.IA_ExcValid & ~D.IB_ExcValid
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& ~E.I0.ExcValid & ~E.I1.ExcValid;
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assign fetch_i.req = rst | C0_exception.ExcValid | C0_exception.ERET | ~D_IA_valid | F.en & PF_go;
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assign fetch_i.req = rst | C0_exception.ExcValid | C0_exception.ERET | ~D_IA_valid | PF_go
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& ~IQ_valids[3]
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| ~IQ_valids[2] & (PF.pc[2] | F.pc[2] | D_en0f)
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| ~IQ_valids[1] & (~D_en0f & PF.pc[2] & F.pc[2] | D_en0f & (PF.pc[2] | F.pc[2] | D.en1))
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| ~IQ_valids[0] & D_en0f & (~PF.pc[2] & F.pc[2] & D.en1 | PF.pc[2] & (F.pc[2] | D.en1))
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| IQ_valids[0] & PF.pc[2] & F.pc[2] & D_en0f & D.en1;
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assign fetch_i.addr = PF.pc;
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//---------------------------------------------------------------------------//
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@ -224,19 +227,22 @@ module Datapath (
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//---------------------------------------------------------------------------//
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// F.FF
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ffenr #(1) F_valid_ff (
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clk, rst,
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1'b1,
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1'b1,
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F_valid
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);
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ffenr #(32) F_pc_ff (
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clk,
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rst | rstD | rstM,
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rst,
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PF.pc,
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F.en,
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F.pc
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);
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assign F.en = ~IQ_valids[3]
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| ~IQ_valids[2] & (PF.pc[2] | F.pc[2] | D_en0f)
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| ~IQ_valids[1] & (~D_en0f & PF.pc[2] & F.pc[2] | D_en0f & (PF.pc[2] | F.pc[2] | D.en1))
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| ~IQ_valids[0] & D_en0f & (~PF.pc[2] & F.pc[2] & D.en1 | PF.pc[2] & (F.pc[2] | D.en1))
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| IQ_valids[0] & PF.pc[2] & F.pc[2] & D_en0f & D.en1;
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assign F.en = fetch_i.addr_ok;
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//---------------------------------------------------------------------------//
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// Instr Queue //
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@ -322,7 +328,7 @@ module Datapath (
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assign debug_wb1_rf_wnum = W.I1.RD;
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assign debug_wb1_rf_wdata = W.I1.RDataW;
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`ifndef SIMULATION
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`ifndef SIMULATION_PC
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assign debug_wb_pc = 32'hFFFFFFFF;
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assign debug_wb1_pc = 32'hFFFFFFFF;
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`else
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@ -373,6 +379,8 @@ module Datapath (
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| E.I1.WCtrl.RW & D.IA.RS == E.I1.RD & D.IA.ECtrl.SA == RS & E.I1.MCtrl.MR
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| E.I0.WCtrl.RW & D.IA.RT == E.I0.RD & D.IA.ECtrl.SB == RT & E.I0.MCtrl.RS0 != ALUOut
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| E.I1.WCtrl.RW & D.IA.RT == E.I1.RD & D.IA.ECtrl.SB == RT & E.I1.MCtrl.MR
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| E.I0.WCtrl.RW & D.IA.RT == E.I0.RD & ~D.IA.DCtrl.DP0 & D.IA.MCtrl1.MR & D.IA.MCtrl1.MWR & E.I0.MCtrl.RS0 != ALUOut
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| E.I1.WCtrl.RW & D.IA.RT == E.I1.RD & ~D.IA.DCtrl.DP0 & D.IA.MCtrl1.MR & D.IA.MCtrl1.MWR & E.I1.MCtrl.MR
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| E.I1.WCtrl.RW & D.IA.RS == E.I1.RD & D.IA.PFCtrl.BJR
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| E.I0.WCtrl.RW & D.IA.RS == E.I0.RD & D.IA.PFCtrl.BJR
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| E.I0.WCtrl.RW & D.IA.RT == E.I0.RD & D.IA.PFCtrl.BE
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@ -386,8 +394,11 @@ module Datapath (
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| E.I1.WCtrl.RW & D.IB.RS == E.I1.RD & D.IB.ECtrl.SA == RS & E.I1.MCtrl.MR
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| E.I0.WCtrl.RW & D.IB.RT == E.I0.RD & D.IB.ECtrl.SB == RT & E.I0.MCtrl.RS0 != ALUOut
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| E.I1.WCtrl.RW & D.IB.RT == E.I1.RD & D.IB.ECtrl.SB == RT & E.I1.MCtrl.MR
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| E.I0.WCtrl.RW & D.IB.RT == E.I0.RD & ~D.IB.DCtrl.DP0 & D.IB.MCtrl1.MR & D.IB.MCtrl1.MWR & E.I0.MCtrl.RS0 != ALUOut
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| E.I1.WCtrl.RW & D.IB.RT == E.I1.RD & ~D.IB.DCtrl.DP0 & D.IB.MCtrl1.MR & D.IB.MCtrl1.MWR & E.I1.MCtrl.MR
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| D.IA.WCtrl.RW & D.IB.RS == D.IA.RD & D.IB.ECtrl.SA == RS
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| D.IA.WCtrl.RW & D.IB.RT == D.IA.RD & D.IB.ECtrl.SB == RT
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| D.IA.WCtrl.RW & D.IB.RT == D.IA.RD & ~D.IB.DCtrl.DP0 & D.IB.MCtrl1.MR & D.IB.MCtrl1.MWR
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| D.IA.WCtrl.RW & D.IB.RS == D.IA.RD & ~D.IB.DCtrl.DP1 & (D.IB.MCtrl0.HW | D.IB.MCtrl0.LW) & D.IB.MCtrl0.HLS == HLRS & ~D.IA.DCtrl.DP0 & D.IA.MCtrl1.MR
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| D.IA.WCtrl.RW & D.IB.RT == D.IA.RD & ~D.IB.DCtrl.DP1 & D.IB.MCtrl0.C0W & ~D.IA.DCtrl.DP0 & D.IA.MCtrl1.MR;
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@ -511,7 +522,7 @@ module Datapath (
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{D.I0.ExcValid, D.I0.ERET, D.I0.ExcCode, D.I0.Delay, D.I0.OFA},
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E.en,
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~D_go,
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{E.I0.ExcValid, E.I0.ERET, E.I0.ExcCode, E.I0.Delay, E.I0.OFA}
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{E_I0_PrevExcValid, E.I0.ERET, E_I0_PrevExcCode, E.I0.Delay, E.I0.OFA}
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);
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ffen #(5 + 5 + 32 + 32) E_I0_ST_ff (
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clk,
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@ -523,7 +534,7 @@ module Datapath (
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clk,
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{D.I0.imm, D.I0.sa},
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E.en,
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{E.I0.imm, D.I0.sa}
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{E.I0.imm, E.I0.sa}
|
||||
);
|
||||
ffenrc #(13) E_I0_ECtrl_ff (
|
||||
clk,
|
||||
@ -562,7 +573,7 @@ module Datapath (
|
||||
{D.I1.ExcValid, D.I1.ERET, D.I1.ExcCode, D.I1.Delay, D.I1.OFA},
|
||||
E.en,
|
||||
~D_go,
|
||||
{E.I1.ExcValid, E.I1.ERET, E.I1.ExcCode, E.I1.Delay, E.I1.OFA}
|
||||
{E_I1_PrevExcValid, E.I1.ERET, E_I1_PrevExcCode, E.I1.Delay, E.I1.OFA}
|
||||
);
|
||||
ffen #(5 + 5 + 32 + 32) E_I1_ST_ff (
|
||||
clk,
|
||||
@ -574,7 +585,7 @@ module Datapath (
|
||||
clk,
|
||||
{D.I1.imm, D.I1.sa},
|
||||
E.en,
|
||||
{E.I1.imm, D.I1.sa}
|
||||
{E.I1.imm, E.I1.sa}
|
||||
);
|
||||
ffenrc #(13) E_I1_ECtrl_ff (
|
||||
clk,
|
||||
@ -681,6 +692,7 @@ module Datapath (
|
||||
assign mem_i.req = E.I1.MCtrl.MR & ~E_I1_go & M.en;
|
||||
assign mem_i.wr = E.I1.MCtrl.MWR;
|
||||
assign mem_i.addr = E.I1.ALUOut;
|
||||
assign mem_i.wdata = E_I1_ForwardT;
|
||||
|
||||
assign E.en = E_go & M.en;
|
||||
assign E_go = ~mem_i.req | mem_i.addr_ok;
|
||||
@ -751,13 +763,13 @@ module Datapath (
|
||||
M.en,
|
||||
M.I0.pc
|
||||
);
|
||||
ffenrc #(1 + 1 + 5 + 32 + 1) M_I0_Exc_ff (
|
||||
ffenrc #(1 + 1 + 5 + 1) M_I0_Exc_ff (
|
||||
clk,
|
||||
rst | rstM,
|
||||
{E.I0.ExcValid, E.I0.ERET, E.I0.ExcCode, E.I0.BadVAddr, E.I0.Delay},
|
||||
{E.I0.ExcValid, E.I0.ERET, E.I0.ExcCode, E.I0.Delay},
|
||||
M.en,
|
||||
~E_go,
|
||||
{M.I0.ExcValid, M.I0.ERET, M.I0.ExcCode, M.I0.BadVAddr, M.I0.Delay}
|
||||
{M.I0.ExcValid, M.I0.ERET, M.I0.ExcCode, M.I0.Delay}
|
||||
);
|
||||
ffen #(5 + 5 + 32 + 32) M_I0_ST_ff (
|
||||
clk,
|
||||
@ -851,6 +863,7 @@ module Datapath (
|
||||
);
|
||||
|
||||
// M.Exc
|
||||
assign M.I0.BadVAddr = M.I0.pc;
|
||||
assign C0_exception = M.I1.ExcValid & M.A ? {
|
||||
M.I1.ExcValid, M.I1.Delay, M.I1.ExcCode, M.I1.BadVAddr, M.I1.pc, M.I1.ERET
|
||||
} : {
|
||||
@ -966,17 +979,6 @@ module Datapath (
|
||||
M_I0_ForwardT
|
||||
);
|
||||
|
||||
assign M_I1_FT_M_I0 = ~M.A & M.I0.WCtrl.RW & M.I1.RT == M.I0.RD;
|
||||
assign M_I1_FT_W_I0 = W.I0.WCtrl.RW & M.I1.RT == W.I0.RD;
|
||||
assign M_I1_FT_W_I1 = W.I1.WCtrl.RW & M.I1.RT == W.I1.RD;
|
||||
mux3 #(32) M_I1_ForwardT_mux (
|
||||
M.I1.T,
|
||||
(~M_I1_FT_W_I0 | M_I1_FT_W_I1 & W.A) ? W.I1.RDataW : W.I0.RDataW,
|
||||
M.I0.ALUOut,
|
||||
{M_I1_FT_M_I0, M_I1_FT_W_I0 | M_I1_FT_W_I1},
|
||||
M_I1_ForwardT
|
||||
);
|
||||
|
||||
//----------------------------------------------------------------------------//
|
||||
// Write-Back Stage //
|
||||
//----------------------------------------------------------------------------//
|
||||
@ -1016,7 +1018,7 @@ module Datapath (
|
||||
~M_go,
|
||||
{W.I1.RD, W.I1.WCtrl}
|
||||
);
|
||||
`ifdef SIMULATION
|
||||
`ifdef SIMULATION_PC
|
||||
ffenrc #(64) W_I01_pc_ff (
|
||||
clk,
|
||||
rst,
|
||||
|
@ -8,7 +8,7 @@ module MMU (
|
||||
input clk, rst,
|
||||
input inst_rst,
|
||||
|
||||
input logic [1:0] K0,
|
||||
input logic [2:0] K0,
|
||||
|
||||
ICache_i.mmu ic,
|
||||
DCache_i.mmu dc,
|
||||
@ -429,7 +429,7 @@ module MMU (
|
||||
if (~wdata_axi.data_ok) dwNextState = DW_WB;
|
||||
else begin
|
||||
// fixme: AXI3 wait WA
|
||||
if (drState == DR_REFILL) $error("drState == DR_REFILL");
|
||||
// if (drState == DR_REFILL) $error("drState == DR_REFILL");
|
||||
dwNextState = DW_WAITR;
|
||||
end
|
||||
end
|
||||
@ -454,7 +454,7 @@ module MMU (
|
||||
if (~wdata_axi.data_ok) dwNextState = DW_WB;
|
||||
else begin
|
||||
// fixme: AXI3 wait WA
|
||||
if (drState != DR_REFILL) $error("drState != DR_REFILL");
|
||||
// if (drState != DR_REFILL) $error("drState != DR_REFILL");
|
||||
dwNextState = DW_IDLE;
|
||||
end
|
||||
end
|
||||
@ -590,7 +590,7 @@ module MMU (
|
||||
endmodule
|
||||
|
||||
module mapping (
|
||||
input logic [1:0] K0,
|
||||
input logic [2:0] K0,
|
||||
input word_t addr_in,
|
||||
output word_t addr_out,
|
||||
output logic cached
|
||||
@ -604,7 +604,7 @@ module mapping (
|
||||
cached = 0;
|
||||
end else begin // kseg0 -> CP0.K0 default: uncached
|
||||
addr_out = addr_in & 32'h1FFF_FFFF;
|
||||
cached = (K0 == 2'b11);
|
||||
cached = (K0 == 3'b011);
|
||||
end
|
||||
end
|
||||
endmodule
|
||||
|
49
src/MyCPU.sv
49
src/MyCPU.sv
@ -67,18 +67,18 @@ module mycpu_top (
|
||||
output wire debug_wb_pc_A
|
||||
);
|
||||
|
||||
AXIRead_i axi_read ();
|
||||
AXIRead_i axi_read ();
|
||||
AXIWrite_i axi_write ();
|
||||
|
||||
SRAM_RO_AXI_i inst_axi ();
|
||||
SRAM_RO_AXI_i rdata_axi ();
|
||||
SRAM_W_AXI_i wdata_axi ();
|
||||
SRAM_W_AXI_i wdata_axi ();
|
||||
|
||||
ICache_i icache ();
|
||||
DCache_i dcache ();
|
||||
|
||||
sramro_i inst ();
|
||||
sram_i data ();
|
||||
sram_i data ();
|
||||
|
||||
logic [4:0] C0_addr;
|
||||
word_t C0_rdata;
|
||||
@ -86,7 +86,9 @@ module mycpu_top (
|
||||
word_t C0_wdata;
|
||||
EXCEPTION_t C0_exception;
|
||||
word_t C0_EPC;
|
||||
logic [1:0] K0;
|
||||
logic [2:0] K0;
|
||||
|
||||
logic inst_rst;
|
||||
|
||||
|
||||
AXI axi (
|
||||
@ -102,6 +104,7 @@ module mycpu_top (
|
||||
MMU mmu (
|
||||
.clk (aclk),
|
||||
.rst (~aresetn),
|
||||
.inst_rst (inst_rst),
|
||||
.K0 (K0),
|
||||
.ic (icache.mmu),
|
||||
.dc (dcache.mmu),
|
||||
@ -112,13 +115,13 @@ module mycpu_top (
|
||||
.wdata_axi(wdata_axi.master)
|
||||
);
|
||||
|
||||
ICache icache (
|
||||
ICache ICache (
|
||||
.clk (aclk),
|
||||
.rst (~aresetn),
|
||||
.port(icache.cache)
|
||||
);
|
||||
|
||||
DCache dcache (
|
||||
DCache DCache (
|
||||
.clk (aclk),
|
||||
.rst (~aresetn),
|
||||
.port(dcache.cache)
|
||||
@ -137,18 +140,28 @@ module mycpu_top (
|
||||
);
|
||||
|
||||
Datapath datapath (
|
||||
.clk (aclk),
|
||||
.rst (aresetn),
|
||||
.fetch_i (inst.master),
|
||||
.mem_i (data.master),
|
||||
.C0_addr (C0_addr),
|
||||
.C0_rdata (C0_rdata),
|
||||
.C0_we (C0_we),
|
||||
.C0_wdata (C0_wdata),
|
||||
.C0_exception(C0_exception),
|
||||
.C0_EPC (C0_EPC),
|
||||
.test_addr (),
|
||||
.test_data ()
|
||||
.clk (aclk),
|
||||
.rst (~aresetn),
|
||||
.fetch_i (inst.master),
|
||||
.mem_i (data.master),
|
||||
.inst_rst (inst_rst),
|
||||
.C0_addr (C0_addr),
|
||||
.C0_rdata (C0_rdata),
|
||||
.C0_we (C0_we),
|
||||
.C0_wdata (C0_wdata),
|
||||
.C0_exception (C0_exception),
|
||||
.C0_EPC (C0_EPC),
|
||||
.debug_wb_pc (debug_wb_pc),
|
||||
.debug_wb_rf_wen (debug_wb_rf_wen),
|
||||
.debug_wb_rf_wnum (debug_wb_rf_wnum),
|
||||
.debug_wb_rf_wdata (debug_wb_rf_wdata),
|
||||
.debug_wb1_pc (debug_wb1_pc),
|
||||
.debug_wb1_rf_wen (debug_wb1_rf_wen),
|
||||
.debug_wb1_rf_wnum (debug_wb1_rf_wnum),
|
||||
.debug_wb1_rf_wdata(debug_wb1_rf_wdata),
|
||||
.debug_wb_pc_A (debug_wb_pc_A),
|
||||
.test_addr (),
|
||||
.test_data ()
|
||||
);
|
||||
|
||||
assign axi_read.AXIReadData.arready = arready;
|
||||
|
@ -83,8 +83,6 @@ typedef struct packed {
|
||||
typedef struct packed {
|
||||
logic DP0;
|
||||
logic DP1;
|
||||
logic UI;
|
||||
logic IX;
|
||||
} DCtrl_t;
|
||||
|
||||
typedef struct packed {
|
||||
@ -229,7 +227,6 @@ typedef struct packed {
|
||||
logic ExcValid;
|
||||
logic ERET;
|
||||
logic [4:0] ExcCode;
|
||||
word_t BadVAddr;
|
||||
logic Delay;
|
||||
logic OFA;
|
||||
|
||||
@ -340,7 +337,7 @@ typedef struct packed {
|
||||
logic A;
|
||||
|
||||
struct packed {
|
||||
`ifdef SIMULATION
|
||||
`ifdef SIMULATION_PC
|
||||
word_t pc;
|
||||
`endif
|
||||
word_t RDataW;
|
||||
@ -350,7 +347,7 @@ typedef struct packed {
|
||||
} I0;
|
||||
|
||||
struct packed {
|
||||
`ifdef SIMULATION
|
||||
`ifdef SIMULATION_PC
|
||||
word_t pc;
|
||||
`endif
|
||||
word_t RDataW;
|
||||
|
Loading…
Reference in New Issue
Block a user