remove no use file in demo
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// SPDX-License-Identifier: Apache-2.0
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// Copyright 2019 Western Digital Corporation or its affiliates.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//
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`ifdef RV_BUILD_AHB_LITE
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module ahb_sif (
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input logic [63:0] HWDATA,
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input logic HCLK,
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input logic HSEL,
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input logic [3:0] HPROT,
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input logic HWRITE,
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input logic [1:0] HTRANS,
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input logic [2:0] HSIZE,
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input logic HREADY,
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input logic HRESETn,
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input logic [31:0] HADDR,
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input logic [2:0] HBURST,
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output logic HREADYOUT,
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output logic HRESP,
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output logic [63:0] HRDATA
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);
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parameter MAILBOX_ADDR = 32'hD0580000;
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logic write;
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logic [31:0] laddr, addr;
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logic [7:0] strb_lat;
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logic [63:0] rdata;
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bit [7:0] mem [bit[31:0]];
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bit [7:0] wscnt;
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int dws = 0;
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int iws = 0;
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bit dws_rand;
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bit iws_rand;
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bit ok;
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// Wires
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wire [63:0] WriteData = HWDATA;
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wire [7:0] strb = HSIZE == 3'b000 ? 8'h1 << HADDR[2:0] :
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HSIZE == 3'b001 ? 8'h3 << {HADDR[2:1],1'b0} :
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HSIZE == 3'b010 ? 8'hf << {HADDR[2],2'b0} : 8'hff;
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wire mailbox_write = write && laddr==MAILBOX_ADDR;
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initial begin
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if ($value$plusargs("iws=%d", iws));
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if ($value$plusargs("dws=%d", dws));
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dws_rand = dws < 0;
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iws_rand = iws < 0;
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end
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always @ (negedge HCLK ) begin
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if(HREADY)
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addr = HADDR;
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if (write & HREADY) begin
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if(strb_lat[7]) mem[{laddr[31:3],3'd7}] = HWDATA[63:56];
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if(strb_lat[6]) mem[{laddr[31:3],3'd6}] = HWDATA[55:48];
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if(strb_lat[5]) mem[{laddr[31:3],3'd5}] = HWDATA[47:40];
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if(strb_lat[4]) mem[{laddr[31:3],3'd4}] = HWDATA[39:32];
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if(strb_lat[3]) mem[{laddr[31:3],3'd3}] = HWDATA[31:24];
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if(strb_lat[2]) mem[{laddr[31:3],3'd2}] = HWDATA[23:16];
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if(strb_lat[1]) mem[{laddr[31:3],3'd1}] = HWDATA[15:08];
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if(strb_lat[0]) mem[{laddr[31:3],3'd0}] = HWDATA[07:00];
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end
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if(HREADY & HSEL & |HTRANS) begin
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`ifdef VERILATOR
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if(iws_rand & ~HPROT[0])
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iws = $random & 15;
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if(dws_rand & HPROT[0])
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dws = $random & 15;
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`else
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if(iws_rand & ~HPROT[0])
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ok = std::randomize(iws) with {iws dist {0:=10, [1:3]:/2, [4:15]:/1};};
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if(dws_rand & HPROT[0])
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ok = std::randomize(dws) with {dws dist {0:=10, [1:3]:/2, [4:15]:/1};};
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`endif
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end
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end
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assign HRDATA = HREADY ? rdata : ~rdata;
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assign HREADYOUT = wscnt == 0;
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assign HRESP = 0;
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always @(posedge HCLK or negedge HRESETn) begin
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if(~HRESETn) begin
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laddr <= 32'b0;
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write <= 1'b0;
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rdata <= '0;
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wscnt <= 0;
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end
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else begin
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if(HREADY & HSEL) begin
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laddr <= HADDR;
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write <= HWRITE & |HTRANS;
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if(|HTRANS & ~HWRITE)
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rdata <= {mem[{addr[31:3],3'd7}],
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mem[{addr[31:3],3'd6}],
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mem[{addr[31:3],3'd5}],
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mem[{addr[31:3],3'd4}],
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mem[{addr[31:3],3'd3}],
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mem[{addr[31:3],3'd2}],
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mem[{addr[31:3],3'd1}],
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mem[{addr[31:3],3'd0}]};
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strb_lat <= strb;
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end
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end
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if(HREADY & HSEL & |HTRANS)
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wscnt <= HPROT[0] ? dws[7:0] : iws[7:0];
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else if(wscnt != 0)
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wscnt <= wscnt-1;
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end
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endmodule
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`endif
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`ifdef RV_BUILD_AXI4
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module axi_slv #(TAGW=1) (
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input aclk,
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input rst_l,
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input arvalid,
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output reg arready,
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input [31:0] araddr,
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input [TAGW-1:0] arid,
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input [7:0] arlen,
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input [1:0] arburst,
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input [2:0] arsize,
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output reg rvalid,
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input rready,
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output reg [63:0] rdata,
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output reg [1:0] rresp,
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output reg [TAGW-1:0] rid,
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output rlast,
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input awvalid,
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output awready,
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input [31:0] awaddr,
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input [TAGW-1:0] awid,
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input [7:0] awlen,
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input [1:0] awburst,
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input [2:0] awsize,
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input [63:0] wdata,
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input [7:0] wstrb,
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input wvalid,
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output wready,
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output reg bvalid,
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input bready,
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output reg [1:0] bresp,
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output reg [TAGW-1:0] bid
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);
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parameter MAILBOX_ADDR = 32'hD0580000;
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parameter MEM_SIZE_DW = 8192;
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bit [7:0] mem [bit[31:0]];
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bit [63:0] memdata;
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wire [63:0] WriteData;
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wire mailbox_write;
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assign mailbox_write = awvalid && awaddr==MAILBOX_ADDR && rst_l;
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assign WriteData = wdata;
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always @ ( posedge aclk or negedge rst_l) begin
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if(!rst_l) begin
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rvalid <= 0;
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bvalid <= 0;
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end
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else begin
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bid <= awid;
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rid <= arid;
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rvalid <= arvalid;
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bvalid <= awvalid;
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rdata <= memdata;
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end
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end
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always @ ( negedge aclk) begin
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if(arvalid) memdata <= {mem[araddr+7], mem[araddr+6], mem[araddr+5], mem[araddr+4],
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mem[araddr+3], mem[araddr+2], mem[araddr+1], mem[araddr]};
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if(awvalid) begin
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if(wstrb[7]) mem[awaddr+7] = wdata[63:56];
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if(wstrb[6]) mem[awaddr+6] = wdata[55:48];
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if(wstrb[5]) mem[awaddr+5] = wdata[47:40];
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if(wstrb[4]) mem[awaddr+4] = wdata[39:32];
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if(wstrb[3]) mem[awaddr+3] = wdata[31:24];
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if(wstrb[2]) mem[awaddr+2] = wdata[23:16];
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if(wstrb[1]) mem[awaddr+1] = wdata[15:08];
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if(wstrb[0]) mem[awaddr+0] = wdata[07:00];
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end
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end
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assign arready = 1'b1;
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assign awready = 1'b1;
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assign wready = 1'b1;
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assign rresp = 2'b0;
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assign bresp = 2'b0;
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assign rlast = 1'b1;
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endmodule
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`endif
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@ -1,4 +1,3 @@
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+incdir+$RV_ROOT/testbench
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$RV_ROOT/design/swerv_wrapper.sv
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$RV_ROOT/design/swerv_wrapper.sv
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$RV_ROOT/design/mem.sv
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$RV_ROOT/design/mem.sv
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$RV_ROOT/design/pic_ctrl.sv
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$RV_ROOT/design/pic_ctrl.sv
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