rearrangement
This commit is contained in:
22
iverilog/tobb/labs/lab4/lab4.v
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22
iverilog/tobb/labs/lab4/lab4.v
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module lab4(
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input [8:0] signal,
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output reg [3:0] S
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);
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always@(*) begin
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S = 4'b0000;
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if (signal[8] == 1) begin //First most significant bit -> sum
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S = signal[5:3] + signal[2:0];
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end
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else if (signal[7] == 1) begin
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S = signal[5:3] - signal [2:0];
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end
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else if (signal[6] == 1) begin
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S = signal[5:3] & signal [2:0];
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end
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else if (signal[6] == 0) begin
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S = signal[5:3] | signal [2:0];
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end
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end
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endmodule
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114
iverilog/tobb/labs/lab4/lab4o
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114
iverilog/tobb/labs/lab4/lab4o
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#! /usr/bin/vvp
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:ivl_version "11.0 (stable)";
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:ivl_delay_selection "TYPICAL";
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:vpi_time_precision + 0;
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:vpi_module "/usr/lib/x86_64-linux-gnu/ivl/system.vpi";
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:vpi_module "/usr/lib/x86_64-linux-gnu/ivl/vhdl_sys.vpi";
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:vpi_module "/usr/lib/x86_64-linux-gnu/ivl/vhdl_textio.vpi";
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:vpi_module "/usr/lib/x86_64-linux-gnu/ivl/v2005_math.vpi";
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:vpi_module "/usr/lib/x86_64-linux-gnu/ivl/va_math.vpi";
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S_0x55d6490fdb70 .scope module, "lab4tb" "lab4tb" 2 1;
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.timescale 0 0;
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v0x55d64910fee0_0 .var "s1", 8 0;
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v0x55d64910ffa0_0 .net "s2", 3 0, v0x55d6490c37f0_0; 1 drivers
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S_0x55d6490fdd00 .scope module, "uut" "lab4" 2 6, 3 1 0, S_0x55d6490fdb70;
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.timescale 0 0;
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.port_info 0 /INPUT 9 "signal";
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.port_info 1 /OUTPUT 4 "S";
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v0x55d6490c37f0_0 .var "S", 3 0;
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v0x55d6490c3c00_0 .net "signal", 8 0, v0x55d64910fee0_0; 1 drivers
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E_0x55d6490c2340 .event edge, v0x55d6490c3c00_0;
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.scope S_0x55d6490fdd00;
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T_0 ;
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%wait E_0x55d6490c2340;
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%pushi/vec4 0, 0, 4;
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%store/vec4 v0x55d6490c37f0_0, 0, 4;
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%load/vec4 v0x55d6490c3c00_0;
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%parti/s 1, 8, 5;
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%pad/u 32;
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%cmpi/e 1, 0, 32;
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%jmp/0xz T_0.0, 4;
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%load/vec4 v0x55d6490c3c00_0;
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%parti/s 3, 3, 3;
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%pad/u 4;
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%load/vec4 v0x55d6490c3c00_0;
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%parti/s 3, 0, 2;
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%pad/u 4;
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%add;
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%store/vec4 v0x55d6490c37f0_0, 0, 4;
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%jmp T_0.1;
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T_0.0 ;
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%load/vec4 v0x55d6490c3c00_0;
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%parti/s 1, 7, 4;
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%pad/u 32;
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%cmpi/e 1, 0, 32;
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%jmp/0xz T_0.2, 4;
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%load/vec4 v0x55d6490c3c00_0;
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%parti/s 3, 3, 3;
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%pad/u 4;
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%load/vec4 v0x55d6490c3c00_0;
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%parti/s 3, 0, 2;
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%pad/u 4;
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%sub;
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%store/vec4 v0x55d6490c37f0_0, 0, 4;
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%jmp T_0.3;
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T_0.2 ;
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%load/vec4 v0x55d6490c3c00_0;
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%parti/s 1, 6, 4;
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%pad/u 32;
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%cmpi/e 1, 0, 32;
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%jmp/0xz T_0.4, 4;
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%load/vec4 v0x55d6490c3c00_0;
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%parti/s 3, 3, 3;
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%pad/u 4;
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%load/vec4 v0x55d6490c3c00_0;
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%parti/s 3, 0, 2;
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%pad/u 4;
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%and;
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%store/vec4 v0x55d6490c37f0_0, 0, 4;
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%jmp T_0.5;
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T_0.4 ;
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%load/vec4 v0x55d6490c3c00_0;
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%parti/s 1, 6, 4;
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%pad/u 32;
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%cmpi/e 0, 0, 32;
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%jmp/0xz T_0.6, 4;
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%load/vec4 v0x55d6490c3c00_0;
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%parti/s 3, 3, 3;
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%pad/u 4;
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%load/vec4 v0x55d6490c3c00_0;
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%parti/s 3, 0, 2;
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%pad/u 4;
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%or;
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%store/vec4 v0x55d6490c37f0_0, 0, 4;
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T_0.6 ;
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T_0.5 ;
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T_0.3 ;
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T_0.1 ;
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%jmp T_0;
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.thread T_0, $push;
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.scope S_0x55d6490fdb70;
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T_1 ;
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%vpi_call 2 12 "$dumpfile", "lab4v.vcd" {0 0 0};
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%vpi_call 2 13 "$dumpvars" {0 0 0};
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%pushi/vec4 297, 0, 9;
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%store/vec4 v0x55d64910fee0_0, 0, 9;
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%delay 10, 0;
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%pushi/vec4 169, 0, 9;
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%store/vec4 v0x55d64910fee0_0, 0, 9;
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%delay 10, 0;
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%pushi/vec4 105, 0, 9;
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%store/vec4 v0x55d64910fee0_0, 0, 9;
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%delay 10, 0;
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%pushi/vec4 41, 0, 9;
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%store/vec4 v0x55d64910fee0_0, 0, 9;
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%delay 10, 0;
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%vpi_call 2 19 "$display", "Done" {0 0 0};
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%end;
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.thread T_1;
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# The file index is used to find the file name in the following table.
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:file_names 4;
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"N/A";
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"<interactive>";
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"lab4tb.v";
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"lab4.v";
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22
iverilog/tobb/labs/lab4/lab4tb.v
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22
iverilog/tobb/labs/lab4/lab4tb.v
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module lab4tb();
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reg [8:0] s1;
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wire [3:0] s2;
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lab4 uut(
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.signal(s1),
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.S(s2)
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);
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initial begin
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$dumpfile("lab4v.vcd");
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$dumpvars;
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s1 = 9'b100_101_001; #10;
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s1 = 9'b010_101_001; #10;
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s1 = 9'b001_101_001; #10;
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s1 = 9'b000_101_001; #10;
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$display("Done");
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end
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endmodule
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41
iverilog/tobb/labs/lab4/lab4v.vcd
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41
iverilog/tobb/labs/lab4/lab4v.vcd
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$date
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Fri Jul 5 05:10:51 2024
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$end
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$version
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Icarus Verilog
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$end
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$timescale
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1s
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$end
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$scope module lab4tb $end
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$var wire 4 ! s2 [3:0] $end
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$var reg 9 " s1 [8:0] $end
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$scope module uut $end
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$var wire 9 # signal [8:0] $end
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$var reg 4 $ S [3:0] $end
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$upscope $end
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$upscope $end
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$enddefinitions $end
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#0
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$dumpvars
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b110 $
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b100101001 #
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b100101001 "
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b110 !
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$end
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#10
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b100 !
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b100 $
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b10101001 "
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b10101001 #
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#20
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b1 !
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b1 $
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b1101001 "
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b1101001 #
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#30
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b101 !
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b101 $
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b101001 "
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b101001 #
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#40
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