From 249d1b9c1d8323571acfd6f67974c75f1a8d0a7e Mon Sep 17 00:00:00 2001
From: Bugra Onal <onalbugra@gmail.com>
Date: Fri, 24 Feb 2023 16:42:39 -0800
Subject: [PATCH] Moved sram_op and bit_polarity

---
 compiler/characterizer/bit_polarity.py | 14 ------------
 compiler/characterizer/charutils.py    | 31 ++++++++++++++++++++++++++
 compiler/characterizer/sram_op.py      | 15 -------------
 3 files changed, 31 insertions(+), 29 deletions(-)
 delete mode 100644 compiler/characterizer/bit_polarity.py
 delete mode 100644 compiler/characterizer/sram_op.py

diff --git a/compiler/characterizer/bit_polarity.py b/compiler/characterizer/bit_polarity.py
deleted file mode 100644
index 5a6b6a06..00000000
--- a/compiler/characterizer/bit_polarity.py
+++ /dev/null
@@ -1,14 +0,0 @@
-# See LICENSE for licensing information.
-#
-# Copyright (c) 2016-2023 Regents of the University of California and The Board
-# of Regents for the Oklahoma Agricultural and Mechanical College
-# (acting for and on behalf of Oklahoma State University)
-# All rights reserved.
-#
-
-from enum import Enum
-
-class bit_polarity(Enum):
-    NONINVERTING = 0
-    INVERTING = 1
-
diff --git a/compiler/characterizer/charutils.py b/compiler/characterizer/charutils.py
index 872901b7..1c365fd5 100644
--- a/compiler/characterizer/charutils.py
+++ b/compiler/characterizer/charutils.py
@@ -7,6 +7,7 @@
 #
 import os
 import re
+from enum import Enum
 from openram import debug
 from openram import OPTS
 
@@ -107,3 +108,33 @@ def check_dict_values_is_float(dict):
         if type(value)!=float:
             return False
     return True
+
+
+def bidir_search(func, upper, lower, time_out=9):
+    """
+    Performs bidirectional search over given function with given
+    upper and lower bounds.
+    """
+    time_count = 0
+    while time_count < time_out:
+        val = (upper + lower) / 2
+        if func(val):
+            return (True, val)
+        time_count += 1
+    return (False, 0)
+
+
+class bit_polarity(Enum):
+    NONINVERTING = 0
+    INVERTING = 1
+
+
+class sram_op(Enum):
+    READ_ZERO = 0
+    READ_ONE = 1
+    WRITE_ZERO = 2
+    WRITE_ONE = 3
+    DISABLED_READ_ZERO = 4
+    DISABLED_READ_ONE = 5
+    DISABLED_WRITE_ZERO = 6
+    DISABLED_WRITE_ONE = 7
diff --git a/compiler/characterizer/sram_op.py b/compiler/characterizer/sram_op.py
deleted file mode 100644
index 3aeca925..00000000
--- a/compiler/characterizer/sram_op.py
+++ /dev/null
@@ -1,15 +0,0 @@
-# See LICENSE for licensing information.
-#
-# Copyright (c) 2016-2023 Regents of the University of California and The Board
-# of Regents for the Oklahoma Agricultural and Mechanical College
-# (acting for and on behalf of Oklahoma State University)
-# All rights reserved.
-#
-
-from enum import Enum
-
-class sram_op(Enum):
-    READ_ZERO = 0
-    READ_ONE = 1
-    WRITE_ZERO = 2
-    WRITE_ONE = 3