finished the new keyboard scanning routine

STATUS.md

@@ -3,8 +3,8 @@
 
 Here are the features of the Open ROMs not found in the original ROMs from the 80s (many of them are [configurable](CONFIG.md)):
 
-* improved keyboard scanning, supports multi-key roll-over and rejection of spurious joystick input
-* joystick (port 1) can be used to move text cursor
+* improved keyboard scanning, supports anti-ghosting and is resistant to joystick interference (one variant even supports multi-keyy rollover)
+* joystick can be used to move text cursor
 * uses RAM under ROM and I/O: 61438 bytes free
 * cold/warm start silences multiple SID chips - all $D4xx and $D5xx addresses
 * wark start due to BRK prints out the instruction address