Just that? In Jal it would be (typing directly, might contain some
problems):

-- quiz
-- a0..a4 are input, active low, pulled high with 10k
-- b0..b3 are outputs, active low

var bit button1 at pin_a0
var bit led1 at pin_b0
...etc
var bit quizmaster at pin_a4

port_a_direction = all_input
port_b_direction = all_output

procedure wait_for_answer is
   forever loop
      if button1 == low then
         led1 = low
         return
      end i
      ...etc
   end loop
end procedure

forever loop
   port_b = 0xFF -- clear leds
   wait_for_answer -- wait for someone to answer
   while quizmaster == high loop end loop -- wait for clear
end loop

regards,
Wouter




----------
From: tens <tens@IDOLA.NET.ID>
To: PICLIST@MITVMA.MIT.EDU
Subject: QUIZ MASTER ( Who is the first?)
Date: Thursday, July 15, 1999 08:33

Hi Piclisters,

I'm newbie in PICs field and still learning for PIC codes..
I like to make a "Quiz Master" circuit for a game by using PIC 16F84, to
replace  the similar circuit function that I made by using  Flip-Flop and
Gates ICs.
The main function of the circuit, that will determine who is  the first to
press a button in response to a question ( there are 4 buttons for 4
contestants ) and  the  coresponding output (LED indicator) to the button
will light ON, while the other contestants that pressing the buttons after
the first, will do not have any response to the ouput LED indicator, until
the system is resetted for new Start.
Does anyone have source codes for PIC 16F84 for that application?
Any help is highly appreciated.

Regards,

Paul H..