fixed interrupt vector regression, updated documentation

STATUS.md

@@ -26,8 +26,9 @@ The following ROM features are currently missing:
 * floating point routines
 * tape support
 * RS-232 support
-* warm start (RUN/STOP + RESTORE) - NMI/BRK handling is not implemented at all
+* NMI cartridge handling and BRK handling are not implemented yet
 * breaking Kernal routines with RUN/STOP key
+* PAL/NTSC is detected, but for now only startup banner uses the result
 
 Features currently being worked on: