bit name 

 bit abbreviation 

 Address 

 bit 

 Map (for scrolling scrolling) 

 RBMPK 

 18006AH 

 5 ~ 0 

 Rotation parameter B screen plane K 

 Map (for rotating scroll) 

 RBMPL 

 18006AH 

 13-8 

 For plane L of screen with rotation parameter B 

 Map (for rotating scroll) 

 RBMPM 

 18006CH 

 5-0 

 For plane M of screen with rotation parameter B 

 Map (for rotating scroll) 

 RBMPN 

 18006CH 

 13-8 

 For plane N of screen with rotation parameter B 

 Map (for rotating scroll) 

 RBMPO 

 18006EH 

 5-0 

 For plane O of screen with rotation parameter B 

 Map (for rotating scroll) 

 RBMPP 

 18006EH 

 13-8 

 For plane P of screen with rotation parameter B 

 Screen scroll value 

 N0SCXI 

 180070H 

 10-0 

 NBG0 horizontal direction (integer part) 

 Screen scroll value 

 N0SCXD 

 180072H 

 15-8 

 NBG0 horizontal direction (decimal part) 

 Screen scroll value 

 N0SCYI 

 180074H 

 10-0 

 NBG0 vertical direction (integer part) 

 Screen scroll value 

 N0SCYD 

 180076H 

 15-8 

 NBG0 vertical direction (decimal part) 

 Screen scroll value 

 N1SCXI 

 180080H 

 10-0 

 NBG1 horizontal direction (integer part) 

 Screen scroll value 

 N1SCXD 

 180082H 

 15-8 

 NBG1 horizontal (decimal part) 

 Screen scroll value 

 N1SCYI 

 180084H 

 10-0 

 NBG1 vertical direction (integer part) 

 Screen scroll value 

 N1SCYD 

 180086H 

 15-8 

 NBG1 vertical direction (decimal part) 

 Screen scroll value 

 N2SCX 

 180090H 

 10-0 

 NBG2 horizontal use 

 Screen scroll value 

 N2SCY 

 180092H 

 10-0 

 NBG2 vertical use 

 Screen scroll value 

 N3SCX 

 180094H 

 10-0 

 NBG3 horizontal use 

 Screen scroll value 

 N3SCY 

 180096H 

 10-0 

 NBG3 vertical direction 

 Coordinate increment 

 N0ZMXI 

 180078H 

 2 to 0 

 NBG0 horizontal direction (integer part) 

 Coordinate increment 

 N0ZMXD 

 18007AH 

 15-8 

 NBG0 horizontal direction (decimal part) 

 Coordinate increment 

 N0ZMYI 

 18007CH 

 2 to 0 

 NBG0 vertical direction (integer part) 

 Coordinate increment 

 N0ZMYD 

 18007EH 

 15-8 

 NBG0 vertical direction (decimal part) 

 Coordinate increment 

 N1ZMXI 

 180088H 

 2-0 

 NBG1 horizontal direction (integer part) 

 Coordinate increment 

 N1ZMXD 

 18008AH 

 15-8 

 NBG1 horizontal (decimal part) 

 Coordinate increment 

 N1ZMYI 

 18008CH 

 2-0 

 NBG1 vertical direction (integer part) 

 Coordinate increment 

 N1ZMYD 

 18008EH 

 15-8 

 NBG1 vertical direction (decimal part) 

 Reduce Enable 

 N0ZMHF 

 180098H 

 0 

 For NBG0 

 Reduce Enable 

 N0ZMQT 

 180098H 

 1 

 For NBG0 

 Reduce Enable 

 N1ZMHF 

 180098H 

 8 

 NBG1 

 Reduce Enable 

 N1ZMQT 

 180098H 

 9 

 For NBG1 

 Vertical cell scrolling enabled 

 N0VCSC 

 18009AH 

 0 

 For NBG0 

 Vertical cell scrolling enabled 

 N1VCSC 

 18009AH 

 8 

 For NBG1 

 Line scroll enable 
 (For horizontal screen scroll value) 

 N0LSCX 

 18009AH 

 1 

 For NBG0 

 Line scroll enable 
 (For horizontal screen scroll value) 

 N1LSCX 

 18009AH 

 9 

 NBG1 

 Line scroll enable 
 (for vertical screen scroll value) 

 N0LSCY 

 18009AH 

 2 

 For NBG0