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Diffstat (limited to 'verilog/alu/v4/alu4.v')
-rw-r--r-- | verilog/alu/v4/alu4.v | 30 |
1 files changed, 0 insertions, 30 deletions
diff --git a/verilog/alu/v4/alu4.v b/verilog/alu/v4/alu4.v deleted file mode 100644 index a7b9892..0000000 --- a/verilog/alu/v4/alu4.v +++ /dev/null @@ -1,30 +0,0 @@ -`default_nettype none -`timescale 1us/1ns - -`include "aluOp.vh" - -module alu4 -( -input wire [31:0] alu_in_1, -input wire[31:0] alu_in_2, -input wire[3:0] alu_op_i, -output wire[31:0] alu_output -); - - -wire [31:0] diff = alu_in_1 - alu_in_2; - -assign alu_output = - alu_op_i == `ADD ? alu_in_1 + alu_in_2 : - alu_op_i == `SUB ? diff : - alu_op_i == `XOR ? alu_in_1 ^ alu_in_2 : - alu_op_i == `OR ? alu_in_1 | alu_in_2 : - alu_op_i == `AND ? alu_in_1 & alu_in_2 : - alu_op_i == `SLL ? alu_in_1 << alu_in_2 : - alu_op_i == `SRL ? alu_in_1 >> alu_in_2 : - alu_op_i == `SLTU ? (alu_in_1 < alu_in_2 ? 32'b1 : 32'b0) : - alu_op_i == `NONE ? alu_in_1 : - alu_op_i == `SLT ? (alu_in_1[31] == alu_in_2[31] ? (diff[31] == 1'b0 ? 32'b0 : 32'b1) : (alu_in_1[31] == 1'b1 ? 32'b1 : 32'b0) ) : - alu_op_i == `SRA ? (alu_in_1 >> alu_in_2) | (alu_in_1[31] == 1'b0 ? 32'b0 : (32'hFFFFFFFF << {~alu_in_2[4], ~alu_in_2[3], ~alu_in_2[2], ~alu_in_2[1], ~alu_in_2[0]})) : - 32'b0; -endmodule |