Update on 93 Z28 disassembly and question

Bellsouth n5xmt at bellsouth.net
Wed Dec 23 17:18:16 GMT 1998


One other thing to look for...
Sometimes it sets the beginning of a range of addresses (LDX $XXXX)
then uses calls of x,01, x,03 to get the offset to the address it wants.

-----Original Message-----
From: Mike <trinity at golden.net>
To: diy_efi at efi332.eng.ohio-state.edu <diy_efi at efi332.eng.ohio-state.edu>
Date: Monday, December 21, 1998 12:48 PM
Subject: Re: Update on 93 Z28 disassembly and question


>>
>>Hey,
>>
><*snip*>
>>
>>Another things I have not been able to find, I have found where it
>>sets the TCC lockup bit ($0066), but I have not been able to find
>>where it actually sets an output bit to make the TCC lockup.  I did a
>>quick scan of all code reading $0066 (obvious addressing), and checked
>>to see if something set things in the $10xx range based on the
>>settings in $0066, and I did not find anything.  Anyone have any ideas
>>on what I am missing?
>>
>
>Try looking at the logic starting at D1C9. I suspect the TCC is controlled
>here though I've never seen a PWM output at $4008 :)
>
>
>-----
> Mike
>94PGT
>http://www.golden.net/~trinity
>
>





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