95 lines
3.7 KiB
VHDL
95 lines
3.7 KiB
VHDL
|
-------------------------------------------------------------------------------
|
||
|
|
-- Title :
|
||
|
|
-- Project :
|
||
|
|
-------------------------------------------------------------------------------
|
||
|
|
-- File : packet_injector_package.vhd
|
||
|
|
-- Author : Behnam Razi Perjikolaei <raziperj@uni-bremen.de>
|
||
|
|
-- Company :
|
||
|
|
-- Created : 2019-06-20
|
||
|
|
-- Last update: 2019-06-24
|
||
|
|
-- Platform :
|
||
|
|
-- Standard : VHDL'87
|
||
|
|
-------------------------------------------------------------------------------
|
||
|
|
-- Description:
|
||
|
|
-------------------------------------------------------------------------------
|
||
|
|
-- Copyright (c) 2019
|
||
|
|
-------------------------------------------------------------------------------
|
||
|
|
-- Revisions :
|
||
|
|
-- Date Version Author Description
|
||
|
|
-- 2019-06-20 1.0 behnam Created
|
||
|
|
-------------------------------------------------------------------------------
|
||
|
|
|
||
|
|
library ieee;
|
||
|
|
use ieee.std_logic_1164.all;
|
||
|
|
use ieee.math_real.all;
|
||
|
|
use ieee.numeric_std.all;
|
||
|
|
use work.NOC_3D_PACKAGE.all;
|
||
|
|
------------------------------------------------------------------------------------------
|
||
|
|
|
||
|
|
package packet_injector_package is
|
||
|
|
constant max_packet_num : positive := 31;
|
||
|
|
function rand_destination (seed_1 : positive; seed_2 : positive; layer_prob : integer_vec)
|
||
|
|
return address_inf;
|
||
|
|
function find_int (int_vec : integer_vec; int_val : integer)
|
||
|
|
return boolean;
|
||
|
|
|
||
|
|
|
||
|
|
end packet_injector_package;
|
||
|
|
|
||
|
|
------------------------------------------------------------------------------------------
|
||
|
|
|
||
|
|
package body packet_injector_package is
|
||
|
|
|
||
|
|
-- purpose: generate random node address by considering probability of each layer
|
||
|
|
function rand_destination (
|
||
|
|
seed_1 : positive;
|
||
|
|
seed_2 : positive;
|
||
|
|
layer_prob : integer_vec)
|
||
|
|
return address_inf is
|
||
|
|
variable x_rand, y_rand, z_rand : real;
|
||
|
|
variable x_range : real := real(max_x_dim);
|
||
|
|
variable y_range : real := real(max_y_dim);
|
||
|
|
variable z_range : real := 100.0;
|
||
|
|
variable z_prob_min, z_prob_max : integer range 0 to 100;
|
||
|
|
variable x_rand_num, y_rand_num, z_rand_num : integer range 0 to 100;
|
||
|
|
variable dest_addr : address_inf;
|
||
|
|
variable seed1, seed2 : positive;
|
||
|
|
begin -- rand_destination
|
||
|
|
seed1 := seed_1;
|
||
|
|
seed2 := seed_2;
|
||
|
|
uniform(seed1, seed2, z_rand);
|
||
|
|
z_rand_num := integer(z_rand*z_range);
|
||
|
|
uniform(seed1, seed2, y_rand);
|
||
|
|
y_rand_num := integer(y_rand*y_range);
|
||
|
|
uniform(seed1, seed2, x_rand);
|
||
|
|
x_rand_num := integer(x_rand*x_range);
|
||
|
|
z_prob_max := 0;
|
||
|
|
for i in layer_prob'range loop
|
||
|
|
z_prob_min := z_prob_max;
|
||
|
|
z_prob_max := z_prob_min+layer_prob(i);
|
||
|
|
if z_rand_num <= z_prob_max and z_rand_num >= z_prob_min then
|
||
|
|
dest_addr.z_dest := std_logic_vector(to_unsigned(i, positive(ceil(log2(real(max_z_dim))))));
|
||
|
|
dest_addr.y_dest := std_logic_vector(to_unsigned(y_rand_num, positive(ceil(log2(real(max_y_dim))))));
|
||
|
|
dest_addr.x_dest := std_logic_vector(to_unsigned(x_rand_num, positive(ceil(log2(real(max_x_dim))))));
|
||
|
|
end if;
|
||
|
|
end loop; -- i
|
||
|
|
return dest_addr;
|
||
|
|
end rand_destination;
|
||
|
|
|
||
|
|
-- purpose: find an integer value in an integer vector and return true or false
|
||
|
|
function find_int (
|
||
|
|
int_vec : integer_vec;
|
||
|
|
int_val : integer)
|
||
|
|
return boolean is
|
||
|
|
variable find_result : boolean := false;
|
||
|
|
begin -- find_int
|
||
|
|
for i in 0 to int_vec'length-1 loop
|
||
|
|
if int_vec(i) = int_val then
|
||
|
|
find_result := true;
|
||
|
|
end if;
|
||
|
|
end loop; -- i
|
||
|
|
return find_result;
|
||
|
|
end find_int;
|
||
|
|
end packet_injector_package;
|
||
|
|
------------------------------------------------------------------------------------------
|