DELAY1: MOV 1,#0H
DJNZ 1,$
DJNZ 0,DELAY1
POP 1 ;恢复现场
POP 0
RET
;LED显示常数表
LEDSEG: DB 3FH,06H,5BH,4FH,66H,6DH,7DH,07H ;'0,1,2,3,4,5,6,7'
DB 7FH,6FH,77H,7CH,39H,5EH,79H,71H ;'8,9,A,B,C,D,E,F'
DB 0BFH,086H,0DBH,0CFH,0E6H,0EDH,0FDH,087H ;'0.,1.,2.,3.,4.,5.,6.,7.'
DB 0FFH,0EFH,0F7H,0FCH,0B9H,0DEH,0F9H,0F1H ;'8.,9.,A.,B.,C.,D.,E.,F.'
DB 6DH,02H,08H,00H,59H,0FH,76H ;'U,-,_, ,I,O,P, '
;键盘键码表
KEYCODE:DB 30H,31H,32H,33H,34H,35H,36H,37H ;'1,2,Q,W,A,S,+,Z'
DB 38H,39H,41H,42H,43H,44H,45H,46H ;'3,4,E,R,D,F,X,C'
DB 47H,48H,49H,4AH,4BH,4CH,4DH,4EH ;'5,6,T,Y,G,H,V,B'
END