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Any programmers familiar with Reactor?


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#1 DarthCalvin OFFLINE  

DarthCalvin

    Moonsweeper

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Posted Sat Nov 15, 2008 7:53 AM

I may have just stumbled upon an easter egg but I'm new to this game and have no idea.

Reactor__1982___Parker_Bros__18.png

Notice the CH at the top where there would normally be a square. Anyone have any idea what I did to trigger that?

#2 DarthCalvin OFFLINE  

DarthCalvin

    Moonsweeper

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Posted Sat Nov 15, 2008 8:06 AM

Nevermind, someone just showed me.

#3 Deteacher OFFLINE  

Deteacher

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Posted Sat Nov 15, 2008 8:06 AM

According to DP, the thought is that scoring over 200K triggers the programmer's initials. I posted the link in the HSC thread, but here it is for everyone else:

http://www.digitpres...s/26reactor.htm

Congrats! I hope to trigger it today, but I still have some work to do. ;)

#4 Nukey Shay OFFLINE  

Nukey Shay

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Posted Sat Nov 15, 2008 8:20 AM

lda	$A1		;3 game in progress?

	   bne	LF14C	  ;2 branch if so

	   sta	$F2		;3

	   ldy	#$1C	   ;2 set LSB pointer to square

	   lda	$9D		;3

	   and	#$E0	   ;2 score at least 200,000?

	   beq	LF134	  ;2 branch if not

	   ldy	#$26	   ;2 set LSB pointer to "CH"


#5 Nukey Shay OFFLINE  

Nukey Shay

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Posted Sat Nov 15, 2008 8:25 AM

BTW rolling the score (in the released version that allows it) would deactivate the easter egg...unless you again pass the 200k mark.

#6 DarthCalvin OFFLINE  

DarthCalvin

    Moonsweeper

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Posted Sat Nov 15, 2008 8:35 AM

I almost titled this thread, "Hey! Nukey Shay! Can you help me with this?" :)

You rock. Thanks for the breakdown. Now I don't have to sit and experiment with it.

#7 Rom Hunter OFFLINE  

Rom Hunter

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Posted Sun Nov 16, 2008 5:31 AM

So, now it's a fact that passing the 200K triggers the initials?

I mean: it's not a theory anymore?

8)

#8 Nukey Shay OFFLINE  

Nukey Shay

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Posted Sun Nov 16, 2008 6:00 AM

No theory at all. I believe that there is some uncertainty due to that first check. Ram location $A1 contains various flags that are set during a game in progress. If any residual flags were not cleared somehow, the easter egg will not be shown. I suppose that more investigation is required to find out if these circumstances appear in a game. But yeah, the act of passing 200k will cause the next test to fail - displaying the initials.

#9 Rom Hunter OFFLINE  

Rom Hunter

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Posted Sun Nov 16, 2008 6:10 AM

Ok, thanks Nukey.

8)

#10 Godzilla OFFLINE  

Godzilla

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Posted Tue Nov 18, 2008 5:11 PM

wow all these years later :) I never knew that. When was this one discovered?




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