1 files changed, 64 insertions, 0 deletions
diff --git a/demo/utils.py b/demo/utils.py
new file mode 100644
index 0000000..a1f4db2
--- /dev/null
+++ b/demo/utils.py
@@ -0,0 +1,64 @@
+import time 
+import sys
+
+PY_MAJOR_VERSION = sys.version_info[0]
+
+if PY_MAJOR_VERSION > 2:
+    NULL_CHAR = 0
+else:
+    NULL_CHAR = '\0'
+
+def say(s):
+    who = sys.argv[0]
+    if who.endswith(".py"):
+        who = who[:-3]
+    s = "%s@%1.6f: %s" % (who, time.time(), s)
+    print (s)
+
+def write_to_memory(memory, s):
+    say("writing %s " % s)
+    # Pad with NULLs in case I'm communicating with a C program.
+    #memory.write(s + (memory.size - len(s)) * '\0')
+    s += '\0'
+    if PY_MAJOR_VERSION > 2:
+        s = s.encode()
+    memory.write(s)
+
+def read_from_memory(memory):
+    s = memory.read()
+    if PY_MAJOR_VERSION > 2:
+        s = s.decode()
+    i = s.find('\0')
+    if i != -1:
+        s = s[:i]
+    say("read %s" % s)
+
+    return s
+
+def read_params():
+    params = { }
+    
+    f = open("params.txt", "r")
+    
+    for line in f:
+        line = line.strip()
+        if len(line):
+            if line.startswith('#'):
+                pass # comment in input, ignore
+            else:
+                name, value = line.split('=')
+                name = name.upper().strip()
+            
+                if name == "PERMISSIONS":
+                    value = int(value, 8)
+                else:
+                    value = int(value)
+        
+                #print "name = %s, value = %d" % (name, value)
+            
+                params[name] = value
+
+    f.close()
+    
+    return params
+