ATO2-24: Updated python model hash algorithm and updated stimulus

hdl/src/hash_process.sv

@@ -140,7 +140,7 @@ module hash_process (
     logic [31:0] ssig1_next_W [63:0];
     
     generate
-        for (i = 0; i < 64; i ++) begin
+        for (i=0; i < 64; i++) begin
             assign ssig0_next_W[i] = ((next_W[i] << 25) | (next_W[i] >> 7)) ^ ((next_W[i] << 14) | (next_W[i] >> 18)) ^ (next_W[i] >> 3);
             assign ssig1_next_W[i] = ((next_W[i] << 15) | (next_W[i] >> 17)) ^ ((next_W[i] << 13) | (next_W[i] >> 19)) ^ (next_W[i] >> 10);
         end

model/py/hash_model.py

@@ -12,6 +12,8 @@
 import os, sys, random, math, csv
 import subprocess
 import platform
+import binascii
+import hashlib
 
 def main():
     # Check Environment Variables set
@@ -83,14 +85,8 @@ def main():
         out_data_words_last_list += out_data_words_last
         intval = int(data, 2)
         hash_val = 0
-        if (platform.system() == "Darwin"):
-            cmd = f"echo -n {data} | shasum -a 256 -0"
-            hash_process = subprocess.Popen(cmd, stdout=subprocess.PIPE, shell=True)
-            hash_val = (str(hash_process.communicate()[0]).split()[0][2:])
-        else:
-            print("Platform not supported yet")
-            exit()
-        # print(hash_val)
+        h=int(data, 2).to_bytes((len(data) + 7) // 8, byteorder='big')
+        hash_val = binascii.hexlify(hashlib.sha256(h).digest()).decode()
         hash_list.append(hash_val)
 
     # Write out Input Data Stimulus to Text File

simulate/stimulus/model/model_builder_stim.csv

-404785787,32
\ No newline at end of file
+40484783887,100
\ No newline at end of file

simulate/stimulus/testbench/input_cfg_builder_stim.csv

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simulate/stimulus/testbench/output_data_hash_stim.csv

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