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id_exe_register.v
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id_exe_register.v
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`timescale 1ns / 1ps
//////////////////////////////////////////////////////////////////////////////////
// Company:
// Engineer:
//
// Create Date: 21:01:40 05/22/2019
// Design Name:
// Module Name: id_exe_register
// Project Name:
// Target Devices:
// Tool versions:
// Description:
//
// Dependencies:
//
// Revision:
// Revision 0.01 - File Created
// Additional Comments:
//
//////////////////////////////////////////////////////////////////////////////////
module id_exe_register(clk,clrn,
id_wreg,id_m2reg,id_wmem,id_aluc,id_aluimm,id_a,id_b,id_imm,id_rn,id_shift,id_wz,
exe_wreg,exe_m2reg,exe_wmem,exe_aluc,exe_aluimm,exe_a,exe_b,exe_imm,exe_rn,exe_shift,exe_wz,
id_adepen, id_bdepen, exe_adepen, exe_bdepen,
id_btaken, exe_btaken
);
input [1:0] id_adepen, id_bdepen;
output [1:0] exe_adepen, exe_bdepen;
input id_btaken;
output exe_btaken;
input [31:0] id_a,id_b,id_imm;
input [4:0] id_rn;
input [2:0] id_aluc;
input id_wreg,id_m2reg,id_wmem,id_aluimm,id_shift,id_wz;
input clk,clrn;
output [31:0] exe_a,exe_b,exe_imm;
output [4:0] exe_rn;
output [2:0] exe_aluc;
output exe_wreg,exe_m2reg,exe_wmem,exe_aluimm,exe_shift,exe_wz;
reg [31:0] exe_a,exe_b,exe_imm;
reg [4:0] exe_rn;
reg [2:0] exe_aluc;
reg exe_wreg,exe_m2reg,exe_wmem,exe_aluimm,exe_shift,exe_wz;
reg [1:0] exe_adepen, exe_bdepen;
reg exe_btaken;
always @(negedge clrn or posedge clk)
if(clrn==0)
begin
exe_wreg<=0; exe_m2reg<=0;
exe_wmem<=0; exe_aluc<=0;
exe_aluimm<=0; exe_a<=0;
exe_b<=0; exe_imm<=0;
exe_rn<=0; exe_shift<=0;
exe_wz<=0;
exe_adepen<=0;
exe_bdepen<=0;
exe_btaken<=0;
end
else
begin
exe_wreg<=id_wreg; exe_m2reg<=id_m2reg;
exe_wmem<=id_wmem; exe_aluc<=id_aluc;
exe_aluimm<=id_aluimm; exe_a<=id_a;
exe_b<=id_b; exe_imm<=id_imm;
exe_rn<=id_rn; exe_shift<=id_shift;
exe_wz<=id_wz;
exe_adepen<=id_adepen;
exe_bdepen<=id_bdepen;
exe_btaken<=id_btaken;
end
endmodule