OS7 Absolute listings can not be the final set

[Captain Cozmos]

Every listing that I have found out there does not match the latest BIOS.

I've poured over this disassembly and found a few inconsistencies around sound and timers.

 

The listing I have is from 1982.

I have the original manual I purchased back in 85.  All Coleco source code that was made to vendors creating games.

If someone knows anything then please post it.

I will check the bulletins but I am not expecting anything.

 

What I have been creating in my spare time is a BIOS source that you can assemble with a simple drag and drop.

You can change it anyway you like.
I also am incorporating a lot of functionality that was broken in the original as well as remove all PASCAL entries and data to free up space.
 

My initial idea behind this was to learn 100% how the music works so I could incorporate it into another project but I got carried away.

 

Edited July 2 by Captain Cozmos

[youki]

i think a version you can assemble already exists.    I used it few year ago to modify the bios for the Homebrew console HB Vision.   

 

 

[+nanochess]

Colecovision Coding Guide by newcoleco contains a disassembled Coleco BIOS.

 

https://archive.org/details/manualzilla-id-5667325

 

 

[Captain Cozmos]

All of you make valid and true statements.  However, I have completed a thorough disassembly of the BIOS and matched it to all the listings released.  There are differences.
 

Either way, I thought I would ask in case any of you guys had some insight.

[Captain Cozmos]

4 hours ago, youki said:

i think a version you can assemble already exists.    I used it few year ago to modify the bios for the Homebrew console HB Vision.   

 

 

Thanks for the heads up.
I have all the sources.
My exercise in the beginning was to disassemble and make the corrections using the source.

This way I can get intimate with every line of code to learn how it functions.  Read every note, every label and follow the logic.
It has made me a better programmer over the years.

In the process I find things.  Like the hidden patterns in Mr. Do.

Edited July 2 by Captain Cozmos

[ChildOfCv]

What I love about the "Absolute listing" is that it does not disassemble the Pascal to register translator routine.  I wonder if it was bought from elsewhere?

[ColecoFan1981]

14 hours ago, ChildOfCv said:

What I love about the "Absolute listing" is that it does not disassemble the Pascal to register translator routine.  I wonder if it was bought from elsewhere?

And what I love is people like Captain Coz going over the original disassemblies and looking for chunks of code that were written incorrectly that caused numerous bugs/glitches and simplifying other chunks of code, as well as removing unnecessary PASCAL coding.

 

~Ben