Assignment

Title : ???????????????????????? 3 ????????�?????????????????? 2 ??�??????
From ธันวาคม 04, 2018 at 11:52 AM until เมษายน 04, 2019 at 11:52 AM
Submission type : File (file required, description text optional)
Submission visibility : Only visible for teacher(s) and submitter(s)
Assignment type : Individual
Allow late upload : Users can submit after end date

?????????????????? portB =%00001111 ????????????????????? ??�?????????????????? ????????? portB ????????????????????�????????????????????�????????????

?? ?? ??B?? ????????????????????? Port ???????????????????????�??????

?? ?? %?? ????????????????????????????????�???????????????

?? ??00001111 ??????????????????????????????????????????????????�?????????????????? Port ???????????�????????????

???????????????????? ?? ?? If [????????????????????????] then [???????????????????????????????????????????????????????????????????????????????????????????????????]

????????????

program

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Main:

?? ?? ??if portc.0 = 0 then goto Step1

?? ?? ??if portc.1 = 1 then goto Step2

goto main

Step1:??

?? ?? portb=$0F?? ?? :?? ?? ??pause 500

?? ?? portb=$F0?? ?? :?? ?? ??pause 500

goto Step1

??

Step2:??

?? ?? portb=$55?? ?? :?? ?? ??pause 500

?? ?? portb=$AA?? ?? :?? ?? ??pause 500

goto Step1

??END

?? ????