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//******************************************************************************************************
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// Copyright (c) 2007 TooMuch Semiconductor Solutions Pvt Ltd.
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//File name : bench_generic_ahb_arbiter.v
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//Designer :Ankur Rawat
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//Date : 20 Sep, 2007
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//Test Bench description : Test bench for the Generic AMB AHBA complain Arbiter:- .
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//Revision : 1.0
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//******************************************************************************************************
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module bench_generic_arbiter_full();
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reg [2:0]k1;
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integer i1;
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integer i2;
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integer i;
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parameter size=9;
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parameter size_out=4;
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reg [8*size-1:0]data_in;
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reg [8*size-1:0]addr_in;
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reg [3*size-1:0]hburst;
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reg [2*size-1:0]htrans;
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reg clock;
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reg reset;
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reg hready;
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reg [size-1:0]busreq;
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reg [size-1:0]hlock_main;
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wire [2:0]hburst_out;
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wire [1:0]htrans_out;
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wire hmaster_lock;
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wire [size_out-1:0]hgrant;
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wire [size_out-1:0]hmaster;
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wire [7:0]data_out;
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wire [7:0]addr_out;
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always
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begin
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#5 clock=~clock;
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end
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initial
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begin
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#2000 $finish;
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end
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always@(posedge clock)
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begin
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#10 $display("data_out = %d addr_out = %d ",data_out,addr_out);
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end
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initial
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begin
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data_in[7:0]=8'b0000_0001;
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data_in[15:8]=8'b0000_0010;
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data_in[23:16]=8'b0000_0011;
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data_in[31:24]=8'b0000_0100;
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data_in[39:32]=8'b0000_0101;
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data_in[47:40]=8'b0000_0110;
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data_in[55:48]=8'b0000_0111;
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data_in[63:56]=8'b0000_1000;
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data_in[71:64]=8'b0000_1001;
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addr_in[7:0]=8'b0000_0001;
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addr_in[15:8]=8'b0000_0010;
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addr_in[23:16]=8'b0000_0011;
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addr_in[31:24]=8'b0000_0100;
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addr_in[39:32]=8'b0000_0101;
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addr_in[47:40]=8'b0000_0110;
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addr_in[55:48]=8'b0000_0111;
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addr_in[63:56]=8'b0000_1000;
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addr_in[71:64]=8'b0000_1001;
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reset=0;
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busreq=0;
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hburst=0;
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htrans=0;
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hready=1;
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clock=0;
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#25 reset=1;
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#1 busreq[0]=0;
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hlock_main=9'b0_0000_0000;
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fork
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wrap_8_m0;
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wrap_16_m1;
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join
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#10 wrap_4_m0;
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$display("time1 ******************");
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#10 wrap_16_m0;
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$display("time2 ************************ %5d" ,$time);
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#10 wrap_16_m1;
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$display("time3 ************************ %5d" ,$time);
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#10 wrap_8_m1;
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$display("time4 ************************ %5d" ,$time);
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#10 wrap_8_m2;
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$display("time5 ************************ %5d" ,$time);
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#10 wrap_8_m3;
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$display("time6 ************************ %5d" ,$time);
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#10 wrap_8_m4;
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$display("time7 ************************ %5d" ,$time);
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end
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task wrap_8_m4;
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begin
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$display("wrap_8_m4");
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#50 htrans=0;
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htrans[7:6]=2'b00;hburst[11:9]=3'b100;hlock_main[3]=1;busreq[3]=1'b1;data_in[39:32]=data_in[39:32]+2'b11;
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wait(hgrant==4'b0011);
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for(i=0;i<=4;i=i+1)
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begin
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#10 htrans[7:6]=2'b01;hburst[11:9]=3'b100;hlock_main[3]=0;busreq[3]=1'b1;data_in[39:32]=data_in[39:32]+1;
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end
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#10 htrans[7:6]=2'b01;hburst[11:9]=3'b000;hlock_main[3]=0;busreq[3]=1'b0;data_in[39:32]=data_in[39:32]+1;
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#10 htrans[7:6]=2'b01;hburst[11:9]=3'b000;hlock_main[3]=0;busreq[3]=1'b0;data_in[39:32]=data_in[39:32]+1;
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end
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endtask
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task wrap_8_m3;
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begin
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htrans=0;
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$display("wrap_8_m4");
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htrans[7:6]=2'b00;hburst[11:9]=3'b100;hlock_main[3]=1;busreq[3]=1'b1;data_in[31:24]=data_in[31:24]+2'b11;
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wait(hgrant==4'b0011);
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for(i=0;i<=4;i=i+1)
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begin
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#10 htrans[7:6]=2'b01;hburst[11:9]=3'b100;hlock_main[3]=0;busreq[3]=1'b1;data_in[31:24]=data_in[31:24]+1;
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end
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#10 htrans[7:6]=2'b01;hburst[11:9]=3'b000;hlock_main[3]=0;busreq[3]=1'b0;data_in[31:24]=data_in[31:24]+1;
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#10 htrans[7:6]=2'b01;hburst[11:9]=3'b000;hlock_main[3]=0;busreq[3]=1'b0;data_in[31:24]=data_in[31:24]+1;
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end
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endtask
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task wrap_8_m2;
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begin
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htrans=0;
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htrans[5:4]=2'b00;hburst[8:6]=3'b100;hlock_main[2]=1;busreq[2]=1'b1;data_in[23:16]=data_in[23:16]+2'b11;
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wait(hgrant==4'b0010);
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for(i=0;i<=4;i=i+1)
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begin
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#10 htrans[5:4]=2'b01;hburst[8:6]=3'b100;hlock_main[2]=0;busreq[2]=1'b1;data_in[23:16]=data_in[23:16]+1;
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end
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#10 htrans[5:4]=2'b01;hburst[8:6]=3'b000;hlock_main[2]=0;busreq[2]=1'b0;data_in[23:16]=data_in[23:16]+1;
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#10 htrans[5:4]=2'b01;hburst[8:6]=3'b000;hlock_main[2]=0;busreq[2]=1'b0;data_in[23:16]=data_in[23:16]+1;
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end
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endtask
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task wrap_8_m0;
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begin
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htrans=0;
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htrans[1:0]=2'b00;hburst[2:0]=3'b100;hlock_main[0]=1;busreq[0]=1'b1;data_in=data_in;addr_in=addr_in+2'b11;
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wait(hgrant==4'b0000);
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for(i=0;i<=4;i=i+1)
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begin
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#10 htrans[1:0]=2'b01;hburst[2:0]=3'b100;hlock_main[0]=0;busreq[0]=1'b1;data_in=data_in+1'b1 ;addr_in=addr_in+2'b01;
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end
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#10 htrans[1:0]=2'b01;hburst[2:0]=3'b000;hlock_main[0]=0;busreq[0]=1'b0;data_in=data_in+1;addr_in=addr_in+2'b01;
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#10 htrans[1:0]=2'b01;hburst[2:0]=3'b000;hlock_main[0]=0;busreq[0]=1'b0;data_in=data_in+1;addr_in=addr_in+2'b01;
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end
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endtask
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task wrap_4_m0;
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begin
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htrans=0;
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$display("wrap_4_mo");
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htrans[1:0]=2'b00;hburst[2:0]=3'b010;hlock_main[0]=1;busreq[0]=1'b1;data_in=data_in+2'b11;
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wait(hgrant==4'b0000);
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#10 htrans[1:0]=2'b01;hburst[2:0]=3'b000;hlock_main[0]=0;busreq[0]=1'b0;data_in=data_in+1;
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#10 htrans[1:0]=2'b01;hburst[2:0]=3'b000;hlock_main[0]=0;busreq[0]=1'b0;data_in=data_in+1;
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#10 htrans[1:0]=2'b01;hburst[2:0]=3'b000;hlock_main[0]=0;busreq[0]=1'b0;data_in=data_in+1;
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end
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endtask
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task wrap_16_m0;
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begin
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htrans=0;
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$display("wrap_16_mo");
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htrans[2:0]=2'b00;hburst[2:0]=3'b111;hlock_main[0]=1;busreq[0]=1'b1;data_in=data_in+2'b11;
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wait(hgrant==4'b0000);
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for(i=0;i<13;i=i+1)
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begin
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#10 htrans[1:0]=2'b01;hburst[2:0]=3'b111;hlock_main[0]=1;busreq[0]=1'b0;data_in=data_in+1;
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end
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#10 htrans[1:0]=2'b01;hburst[2:0]=3'b000;hlock_main[0]=0;busreq[0]=1'b0;data_in=data_in+1;
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#10 htrans[1:0]=2'b01;hburst[2:0]=3'b000;hlock_main[0]=0;busreq[0]=1'b0;data_in=data_in+1;
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end
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endtask
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task wrap_16_m1;
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begin
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htrans=0;
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$display("wrap_16_m1");
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busreq[1]=1'b1;htrans[3:2]=2'b00;hburst[5:3]=3'b111;hlock_main[1]=1;data_in[15:8]=data_in[15:8]+2'b11;addr_in[15:8]=addr_in[15:8]+2'b11;
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wait(hgrant==4'b0001);
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#10 busreq[1]=1'b1;htrans[3:2]=2'b01;hburst[5:3]=3'b111;hlock_main[1]=1;data_in[15:8]=data_in[15:8]+1;addr_in[15:8]=addr_in[15:8]+1'b1 ;
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for(i=0;i<12;i=i+1)
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begin
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#10 busreq[1]=1'b0;htrans[3:2]=2'b01;hburst[5:3]=3'b000;hlock_main[1]=0;data_in[15:8]=data_in[15:8]+1;addr_in[15:8]=addr_in[15:8]+1'b1 ;
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end
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#10 busreq[1]=1'b0;htrans[3:2]=2'b11;hburst[5:3]=3'b000;hlock_main[1]=0;data_in[15:8]=data_in[15:8];addr_in[15:8]=addr_in[15:8];
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#10 busreq[1]=1'b0;htrans[3:2]=2'b11;hburst[5:3]=3'b000;hlock_main[1]=0;data_in[15:8]=data_in[15:8];addr_in[15:8]=addr_in[15:8];
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#10 busreq[1]=1'b0;htrans[3:2]=2'b01;hburst[5:3]=3'b000;hlock_main[1]=0;data_in[15:8]=data_in[15:8]+1;addr_in[15:8]=addr_in[15:8]+1'b1 ;
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#10 busreq[1]=1'b0;htrans[3:2]=2'b01;hburst[5:3]=3'b000;hlock_main[1]=0;data_in[15:8]=data_in[15:8]+1;addr_in[15:8]=addr_in[15:8]+1'b1 ;
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end
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endtask
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task wrap_8_m1;
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begin
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htrans=0;
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$display("wrap_16_m1");
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busreq[1]=1'b1;htrans[3:2]=2'b00;hburst[5:3]=3'b100;hlock_main[1]=1;data_in[15:8]=data_in[15:8]+2'b11;
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wait(hgrant==4'b0001);
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for(i=0;i<4;i=i+1)
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begin
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#10 busreq[1]=1'b0;htrans[3:2]=2'b01;hburst[5:3]=3'b100;hlock_main[1]=1;data_in[15:8]=data_in[15:8]+1;
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end
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#10 busreq[1]=1'b0;htrans[3:2]=2'b01;hburst[5:3]=3'b000;hlock_main[1]=0;data_in[15:8]=data_in[15:8]+1;
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#10 busreq[1]=1'b0;htrans[3:2]=2'b01;hburst[5:3]=3'b000;hlock_main[1]=0;data_in[15:8]=data_in[15:8]+1;
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end
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endtask
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task wrap_4_m1;
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begin
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htrans=0;
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$display("wrap_4_m1");
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htrans[1:0]=2'b00;hburst[2:0]=3'b100;hlock_main[1]=1;busreq[1]=1'b1;data_in[15:8]=data_in[15:8]+2'b11;
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wait(hgrant ==4'b0000);
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for(i=0;i<=1;i=i+1)
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begin
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#10 htrans[1:0]=2'b01;hburst[2:0]=3'b010;hlock_main[1]=1;busreq[1]=1'b1;data_in[15:8]=data_in[15:8]+1;
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end
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#10 htrans[1:0]=2'b01;hburst[2:0]=3'b000;hlock_main[1]=0;busreq[1]=1'b0;data_in[15:8]=data_in[15:8]+1;
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end
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endtask
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generic_arbiter_full g1(.busreq(busreq),.hlock(hlock_main),.hclk(clock),.hreset(reset),.hmaster_lock(hmaster_lock),.hgrant(hgrant),.hready(hready),.hwdata(data_in),.data_out(data_out),.haddr(addr_in),.addr_out(addr_out),.htrans(htrans),.hburst(hburst),.htrans_out(htrans_out),.hburst_out(hburst_out),.hmaster(hmaster) );
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295 |
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|
|
296 |
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endmodule
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