added script to generate init.plc from pb

Signed-off-by: sakundu <sakundu@ucsd.edu>

Flows/util/gen_plc_from_pb.py

+import sys
+import numpy as np
+
+class pb_object:
+  def __init__(self, id):
+    self.name = None
+    self.node_id = id
+    self.height = 0
+    self.width = 0
+    self.weight = 0
+    self.x = -1
+    self.x_offset = 0
+    self.y = -1
+    self.y_offset = 0
+    self.m_name = None
+    self.pb_type = None
+    self.side = None
+    self.orientation = None
+
+pb_file = sys.argv[1]
+print(f'Protocol buffer file {pb_file}')
+
+fp = open(pb_file, "r")
+lines = fp.readlines()
+
+key1 = ['"height"', '"weight"', '"width"', '"x"', '"x_offset"', '"y"', '"y_offset"']
+key2 = ['"macro_name"', '"orientation"', '"side"', '"type"']
+node_list = []
+
+node_id = 0
+key = ""
+keys = set()
+for line in lines:
+  words = line.split()
+  if words[0] == 'node':
+    node_list.append(pb_object(node_id))
+    node_id += 1
+  elif words[0] == 'name:':
+    node_list[-1].name = words[1]
+  elif words[0] == 'key:' :
+    key = words[1]
+    keys.add(key)
+  elif words[0] == 'placeholder:' :
+    if key == key2[0]:
+      node_list[-1].m_name = words[1]
+    elif key == key2[1]:
+      node_list[-1].orientation = words[1]
+    elif key == key2[2]:
+      node_list[-1].side = words[1]
+    elif key == key2[3]:
+      node_list[-1].pb_type = words[1]
+  elif words[0] == 'f:' :
+    if key == key1[0]:
+      node_list[-1].height = words[1]
+    elif key == key1[1]:
+      node_list[-1].weight = words[1]
+    elif key == key1[2]:
+      node_list[-1].width = words[1]
+    elif key == key1[3]:
+      node_list[-1].x = words[1]
+    elif key == key1[4]:
+      node_list[-1].x_offset = words[1]
+    elif key == key1[5]:
+      node_list[-1].y = words[1]
+    elif key == key1[6]:
+      node_list[-1].y_offset = words[1]
+
+fp.close()
+fp = open("init.plc", "w")
+
+hard_macro_list = []
+soft_macro_list = []
+port_list = []
+
+for node in node_list:
+  if node.pb_type == '"MACRO"':
+    hard_macro_list.append(node)
+  elif node.pb_type == '"macro"':
+    soft_macro_list.append(node)
+  elif node.pb_type == '"port"' or node.pb_type == '"PORT"':
+    port_list.append(node)
+
+area1 = 0
+area2 = 0
+for node in port_list:
+  fp.write(f"{node.node_id} {node.x} {node.y} - 1\n")
+for node in hard_macro_list:
+  fp.write(f"{node.node_id} {np.round(float(node.x),3)} {np.round(float(node.y),3)} N 0\n")
+  area1 += float(node.height)*float(node.width)
+
+for node in soft_macro_list:
+  fp.write(f"{node.node_id} {np.round(float(node.x),3)} {np.round(float(node.y),3)} N 0\n")
+  area2 += float(node.height)*float(node.width)
+
+area = area1 + area2
+fp.write(f"# Area: {area}\n")
+fp.close()
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