Groups > comp.sys.apple2.programmer > #1922

DA statement not registering after running compiled program.

Newsgroups	comp.sys.apple2.programmer
Date	2015-10-25 21:59 -0700
Message-ID	<9106d3b6-6cd3-41d3-bec5-d604f093bd67@googlegroups.com> (permalink)
Subject	DA statement not registering after running compiled program.
From	jamesiwalker77@gmail.com

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It seems to me that the DA statement is somehow not registering.

My code is:
     ORG     $300
     LDA     $6000
     STA     $2000
DONE RTS
     ORG     $6000
     DA      $FFFF

I compiled this program, and Merlin shows correct compilation, with the values of memory addresses $6000 and $6001 both set to $FF.

However, after I save the source and object code (after compiling), I leave the assembler, switch to HGR and BRUN the program.  There should be a white line in the upper left corner of the screen.  There are pixels plotted there, but not a white line.  It seems to be pulling other values from $6000 and $6001 than what my DA statement should put in those addresses.  Even after going to the monitor and examining $6000 and $6001, neither are $FF.

Anyone have any idea what is going on here?  It seems that there's possibly some point about how program memory is saved which I am missing here.

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Thread

DA statement not registering after running compiled program. jamesiwalker77@gmail.com - 2015-10-25 21:59 -0700
  Re: DA statement not registering after running compiled program. John Brooks <jbrooks@blueshiftinc.com> - 2015-10-25 22:55 -0700
  Re: DA statement not registering after running compiled program. Benoit0123 <bgilon@free.fr> - 2015-10-26 10:08 +0000
  Re: DA statement not registering after running compiled program. "Anton Treuenfels" <teamtempest@yahoo.com> - 2015-10-26 08:49 -0500
  Re: DA statement not registering after running compiled program. jamesiwalker77@gmail.com - 2015-10-26 10:23 -0700

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