AAEON AIS-E1 - Manual (Page 50)

Ad v a n c e d S y s t e m
C o n t r o l l e r
A I S - E 1
Appendix A Programming the Watchdog Timer A-7
; game port enable
mov cl, 9
call Set_Logic_Device
Initial_OK:
CALL Exit_Configuration_mode
MOV AH,4Ch
INT 21h
Enter_Configuration_Mode PROC NEAR
MOV SI,WORD PTR CS:[Offset Cfg_Port]
MOV DX,02Eh
MOV CX,04h
Init_1:
MOV AL,BYTE PTR CS:[SI]
OUT DX,AL
INC SI
LOOP Init_1
RET
Enter_Configuration_Mode ENDP
Exit_Configuration_Mode PROC NEAR
MOV AX,0202h
CALL Write_Configuration_Data