Added util to print PS2's ROMDIR

util/print-ps2-romdir.py

@@ -0,0 +1,41 @@
+#!/usr/bin/env python3
+
+import struct
+import sys
+
+assert(len(sys.argv) == 2)
+
+def find_romdir(f):
+	while True:
+		line = f.read(16)
+		if len(line) != 16:
+			return False
+
+		if line[0:10] == b'RESET\0\0\0\0\0':
+			# Unread reset entry
+			f.seek(-16, 1)
+			return True
+
+def print_romdir(f):
+	address = 0xBFC00000
+
+	while True:
+		line = f.read(16)
+		if len(line) != 16:
+			return
+
+		entry = struct.unpack('10sHI', line)
+
+		entry_name = entry[0].rstrip(b'\0').decode('ascii')
+		if len(entry_name) == 0:
+			return
+		print('%10s: %08X' % (entry_name, address))
+
+		address = (address + entry[2] + 0xF) & 0xFFFFFFF0
+
+with open(sys.argv[1], 'rb') as f:
+	if find_romdir(f):
+		print('ROMDIR found at %08X' % f.tell())
+		print_romdir(f)
+	else:
+		print('ROMDIR not found', file=sys.stderr)