Furthened decomp work

tmp_compare_regret_debugger_export.py

@@ -0,0 +1,72 @@
+from pathlib import Path
+
+exported = Path(r'F:\Apps\Crusader No Regret\REGRET.EXE')
+hand = Path(r'F:\Apps\Crusader No Regret\REGRET-DEBUGGER.EXE')
+original = Path(r'F:\Apps\Crusader No Regret\REGRET - Copy.EXE')
+
+files = {
+    'exported': exported.read_bytes(),
+    'hand': hand.read_bytes(),
+    'original': original.read_bytes(),
+}
+
+for name, data in files.items():
+    print(f'{name}: size={len(data)}')
+
+print('')
+
+pairs = [('exported', 'hand'), ('exported', 'original'), ('hand', 'original')]
+for left, right in pairs:
+    a = files[left]
+    b = files[right]
+    diff_offsets = [index for index, (ba, bb) in enumerate(zip(a, b)) if ba != bb]
+    if len(a) != len(b):
+        print(f'{left} vs {right}: different sizes')
+    print(f'{left} vs {right}: differing byte positions={len(diff_offsets)}')
+    if diff_offsets:
+        preview = diff_offsets[:20]
+        print(f'  first offsets: {preview}')
+    print('')
+
+patterns = {
+    'call_bootstrap': bytes.fromhex('9a00009813'),
+    'call_open_modal': bytes.fromhex('9a0d029813'),
+    'call_old_dialog': bytes.fromhex('9a46005013'),
+}
+
+for name, data in files.items():
+    print(f'Pattern scan in {name}:')
+    for pattern_name, pattern in patterns.items():
+        hits = []
+        start = 0
+        while True:
+            offset = data.find(pattern, start)
+            if offset == -1:
+                break
+            hits.append(offset)
+            start = offset + 1
+        print(f'  {pattern_name}: {len(hits)} hits; first 20={hits[:20]}')
+    print('')
+
+active_branch_context_original = bytes.fromhex(
+    '6aff6affc41e985c268a4705501e68d5306a006a0083ec06c746e800008b46e8f7d08946eac646ec006a006a009a4600501383c414'
+)
+active_branch_context_patched = bytes.fromhex(
+    '6aff6affc41e985c268a4705501e68d5306a006a0083ec06c746e800008b46e8f7d08946eac646ec006a006a009a0d02981383c414'
+)
+
+for name, data in files.items():
+    orig_hit = data.find(active_branch_context_original)
+    patch_hit = data.find(active_branch_context_patched)
+    print(f'{name}: active-branch old-context offset={orig_hit}, patched-context offset={patch_hit}')
+
+print('')
+
+diff_offsets = [506633, 506649, 506665]
+for offset in diff_offsets:
+    print(f'Context around offset {offset}:')
+    start = max(0, offset - 6)
+    end = offset + 10
+    for name, data in files.items():
+        print(f'  {name}: {data[start:end].hex()}')
+    print('')