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9e3525fcac
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3145dd6a21 | ||
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179eb469c4 |
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@@ -0,0 +1,4 @@
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start_full_compilation:s
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start_assembler:s-start_full_compilation
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start_timing_analyzer:s-start_full_compilation
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start_eda_netlist_writer:s-start_full_compilation
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@@ -0,0 +1,14 @@
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`include "rom.sv"
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module ByteIM #(parameter m=5,n=2) (
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input logic [m-1:0] Ad,
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output logic [(2**n)*8-1:0] Dout );
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// 2**n byte wide words
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// m bit wide byte address
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// 2**m bytes of memory
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// 2**(m-n) memory words
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// 2**(n+3) bit wide words
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// Reads the whole word that contains the addressed byte
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ROM #(m-n,2**(n+3)) wordrom(Ad[m-1:n],Dout)
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endmodule
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+1
-19
@@ -3,31 +3,19 @@
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`include "asu.sv"
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`include "asu.sv"
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`include "lu.sv"
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`include "lu.sv"
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`include "seven_seg.sv"
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// flags[0:0] = Cout
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// flags[0:0] = Cout
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// flags[1:1] = Overflow
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// flags[1:1] = Overflow
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module alu #(parameter width=2)(input logic [3:0] op,
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module alu #(parameter width=2)(input logic [3:0] op,
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input logic [2**width-1:0] A, input logic [2**width-1:0] B,
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input logic [2**width-1:0] A, input logic [2**width-1:0] B,
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output logic [2**width-1:0] OUT_1, output logic[1:0] flags
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output logic [2**width-1:0] OUT_1, output logic[1:0] flags
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`ifdef SYNTHESIS
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, output logic [7:0] out_seg1);
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`else
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);
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);
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`endif
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// intermediate logic for handling asu output
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// intermediate logic for handling asu output
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logic [0:0] asu_op;
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logic [0:0] asu_op;
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logic [2**width-1:0] asu_out;
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logic [2**width-1:0] asu_out;
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logic [1:0] asu_flags;
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logic [1:0] asu_flags;
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logic [7:0] asu_seven_seg_out;
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// NOTE: For demo only
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asu #(width) adder_unit(asu_op[op[1]], A, B, asu_out, asu_flags[0], asu_flags[1]);
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// TODO: Strip this for assignment 2
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`ifdef SYNTHESIS
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asu #(width) adder_unit(asu_op[op[1]], A, B, asu_out, asu_flags[0], asu_flags[1], asu_seven_seg_out);
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`else
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asu #(width) adder_unit(asu_op[op[1]], A, B, asu_out, asu_flags[0], asu_flags[1]);
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`endif
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logic [2**width-1:0] lu_out;
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logic [2**width-1:0] lu_out;
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lu #(width) logic_unit(op[1:0], A, B, lu_out);
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lu #(width) logic_unit(op[1:0], A, B, lu_out);
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@@ -47,11 +35,5 @@ module alu #(parameter width=2)(input logic [3:0] op,
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default: begin OUT_1 = {(2**width){1'b0}}; flags = asu_flags; end
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default: begin OUT_1 = {(2**width){1'b0}}; flags = asu_flags; end
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endcase
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endcase
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end
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end
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// NOTE: For demo only
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// TODO: Strip this for assignment 2
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`ifdef SYNTHESIS
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seven_seg dut(OUT_1, 1'b1, out_seg1);
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`endif
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endmodule
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endmodule
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`endif
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`endif
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+2
-13
@@ -1,20 +1,14 @@
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`ifndef ASU_H_SV
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`ifndef ASU_H_SV
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`define ASU_H_SV
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`define ASU_H_SV
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`include "seven_seg.sv"
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module asu #(parameter width = 2)(
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module asu #(parameter width = 2)(
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input logic [0:0] op,
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input logic [0:0] op,
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input logic[2**width-1:0] A, input logic[2**width-1:0] B,
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input logic[2**width-1:0] A, input logic[2**width-1:0] B,
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output logic[2**width-1:0] OUT_1, output logic[0:0] COUT, output logic[0:0] OUT_CIN
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output logic[2**width-1:0] OUT_1, output logic[0:0] COUT, output logic[0:0] OUT_CIN
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// Used to switch between demo mode and testbench mode
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// TODO: Strip for assignment 2
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`ifdef SYNTHESIS
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, output logic[7:0] out_seg_1);
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`else
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);
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);
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`endif
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logic [2**width-1:0] operand;
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logic [2**width-1:0] operand;
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always_comb begin
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always_comb begin
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// A + (sub) ? B : -B
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// A + (sub) ? B : -B
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// Adds an extra bit to all operands to calculate the carry bit. Not optimal for hardware synthesis
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// Adds an extra bit to all operands to calculate the carry bit. Not optimal for hardware synthesis
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@@ -27,10 +21,5 @@ module asu #(parameter width = 2)(
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// Cin for final bit in adder to later be xor'ed with COUT to determine if a signed overflow occured for the MIPS architecture
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// Cin for final bit in adder to later be xor'ed with COUT to determine if a signed overflow occured for the MIPS architecture
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assign OUT_CIN = A[2**width-1] ^ operand[2**width-1] ^ OUT_1[2**width-1];
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assign OUT_CIN = A[2**width-1] ^ operand[2**width-1] ^ OUT_1[2**width-1];
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// Include seven segment visual output for hardware builds only
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// TODO: Strip this for assignment 2 outright
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`ifdef SYNTHESIS
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seven_seg dut(OUT_1, 1'b1, out_seg_1);
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`endif
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endmodule
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endmodule
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`endif
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`endif
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@@ -0,0 +1,15 @@
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module ROM #(parameter m=7,p=4) (
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input logic [m-1:0] Ad,
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output logic [p-1:0] Dout
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);
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logic [p-1:0] mem[2**m-1:0];
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assign Dout = mem[Ad];
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//Load the program in memory
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// The machine code stored in text file program.dat written in Hex format
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initial begin
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$readmemh("program.dat",mem); //$readmemb for binary
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end
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endmodule // end ROM module
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