Add new file

RISCV_pt.v

+module	RISCV_pt(
+		PTE_address, PTE_valid,
+		PTE_ply,
+		PTE_out, PTE_out_valid,
+		);
+		
+
+input	[31:0]		PTE_address;
+input 				PTE_valid;
+input 	[1:0] 		PTE_ply;
+
+output 	[31:0]		PTE_out;
+output 				PTE_valid;
+
+
+parameter  PTE_1_num = 1024;
+parameter	PTE_2_num = 1024*1024;
+integer i;
+
+wire [31:0] PTE_1[PTE_1_num-1:0];
+wire [31:0] PTE_2[PTE_2_num-1:0];
+
+for(i=0;i<PTE_1;i=i+1)
+	assign PTE_1[i]=i[20:0]+12{{$random}%2};
+for(i=0;i<PTE_2_num;i=i+1)
+	assign PTE_2[i]=i[20:0]+12{{$random}%2};
+if (PTE_valid && PTE_ply==2'b01)
+begin
+	assign PTE_out=PTE_1[PTE_address[31:22]];
+	assign PTE_out_valid=1'b1;
+end
+else if(PTE_valid && PTE_ply==2'b10)
+begin
+	assign PTE_out=PTE_2[PTE_address[31:12]];
+	assign PTE_out_valid=1'b1;
+end
+else
+begin
+	assign PTE_out=32'h00000000;
+	assign PTE_out_valid=1'b0;
+end
+
+
+endmodule
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