diff --git a/main.py b/main.py
index 0d8abff..4c0192d 100644
--- a/main.py
+++ b/main.py
@@ -119,18 +119,41 @@ def parse_registers():
     next(it)
     return it
 
+def interpret_field(field):
+    bit_pattern = re.compile(r'(\d+)(:(\d+))?')
+    m = bit_pattern.fullmatch(field['bits'][0])
+    if m is None:
+        raise ValueError(field['bits'])
+    high = int(m.group(1))
+    low = high
+    if m.group(3) is not None:
+        low = int(m.group(3))
+    result = {}
+    result['name'] = field['name'][0]
+    result['bits'] = [low, high]
+    result['type'] = field['type'][0]
+    return result
+
 def interpret(reg):
     pattern = re.compile(r'(.+\w)\d+')
+    width_pattern = re.compile(r'(\d+)\s?bits')
     result = {}
     name_pattern = None
-    expected = ['Name', 'Relative Address', 'Absolute Address', 'Width',
-                'Access Type', 'Reset Value', 'Description']
+    expected = [
+        ['Name', 'name', lambda v: ''.join(v)],
+        ['Relative Address', 'rel', lambda v: int(v[0], 16)],
+        ['Absolute Address', 'abs', lambda v: int(v[0], 16)],
+        ['Width', 'width', lambda v: int(width_pattern.fullmatch(v[0]).group(1))],
+        ['Access Type', 'access', lambda v: v[0]],
+        ['Reset Value', 'reset', lambda v: v[0]],
+        ['Description', 'description', lambda v: ' '.join(v)]
+    ]
     for v in reg['def']:
         a = v['key']
         b = v['value']
         key = a[0].strip()
-        if len(expected) > 0 and key == expected[0]:
-            result[key] = b
+        if len(expected) > 0 and key == expected[0][0]:
+            result[expected[0][1]] = expected[0][2](b)
             expected = expected[1:]
             if key == 'Name':
                 m = pattern.fullmatch(b[0].strip())
@@ -139,10 +162,24 @@ def interpret(reg):
         elif name_pattern != None and key.startswith(name_pattern):
             if 'similar' not in result:
                 result['similar'] = []
-            result['similar'].append({'name': key, 'address': b[0].strip()})
-    result['fields'] = reg['fields']
+            result['similar'].append({'name': key, 'abs': int(b[0], 16)})
+    result['fields'] = [interpret_field(f) for f in reg['fields']]
+    assert len(expected) == 0
     return result
 
+def snake_to_camel(name: str):
+    result = []
+    start = True
+    for c in name:
+        if c == '_':
+            start = True
+        elif start:
+            start = False
+            result.append(c.upper())
+        else:
+            result.append(c.lower())
+    return ''.join(result)
+
 def emit_rust(base_addr, ending_addr, registers):
     current_addr = base_addr
     reserved_id = 0
@@ -188,4 +225,4 @@ for line in sys.stdin:
 v = end_iterator(parser)
 for reg in v:
     reg = interpret(reg)
-    print(json.dumps(reg, indent = 4))
+    print(reg)