Au, acabat

set_contador_armarios.py

@@ -0,0 +1,43 @@
+#!/usr/bin/env python3
+import sys
+
+# Rango del checksum
+desp = 0x2000
+numBytes = 0x2000
+firstByte = desp + 0x200
+lastByte = desp + numBytes - 1
+checksum1 = desp + 0x270
+checksum2 = desp + 0x271
+
+# Offset del contador de armarios
+CONTADOR = 0x0295C
+
+def calc_checksum(buffer):
+    total = 0
+    for i in range(firstByte, lastByte + 1):
+        if i not in (checksum1, checksum2):
+            total += buffer[i]
+    total += 3328
+    buffer[checksum1] = total % 256
+    buffer[checksum2] = (total >> 8) % 256
+
+if len(sys.argv) != 3:
+    print("Uso: python3 set_contador_armarios.py save_in.srm save_out.srm")
+    sys.exit(1)
+
+infile = sys.argv[1]
+outfile = sys.argv[2]
+
+with open(infile, "rb") as f:
+    buf = bytearray(f.read())
+
+# Poner el contador a 0x80
+buf[CONTADOR] = 0x4F
+
+# Recalcular checksum
+calc_checksum(buf)
+
+with open(outfile, "wb") as f:
+    f.write(buf)
+
+print("Hecho:", outfile)