规律：键盘从左到右，从上到下
; KBXXXX Alt-Letter Key Codes
; Constant Value
KBAltA EQU 1EH
KBAltB EQU 30H
KBAltC EQU 2EH
KBAltD EQU 20H
KBAltE EQU 12H
KBAltF EQU 21H
KBAltG EQU 22H
KBAltH EQU 23H
KBAltI EQU 17H
KBAltJ EQU 24H
KBAltK EQU 25H
KBAltL EQU 26H
KBAltM EQU 32H
KBAltN EQU 31H
KBAltO EQU 18H
KBAltP EQU 19H
KBAltQ EQU 10H
KBAltR EQU 13H
KBAltS EQU 1FH
KBAltT EQU 14H
KBAltU EQU 16H
KBAltV EQU 2FH
KBAltW EQU 11H
KBAltX EQU 2DH
KBAltY EQU 15H
KBAltZ EQU 2CH
; KBXXXX Alt-Number Key Codes
; Constant Value
KBAlt1 EQU 78H
KBAlt2 EQU 79H
KBAlt3 EQU 7AH
KBAlt4 EQU 7BH
KBAlt5 EQU 7CH
KBAlt6 EQU 7DH
KBAlt7 EQU 7EH
KBAlt8 EQU 7FH
KBAlt9 EQU 80H
KBAlt0 EQU 81H