Jump to content
IGNORED

An example of Why preserving original source code is essential.


tschak909

Recommended Posts

#ColecoAdam Another example of why original listings are essential for preservation and study: 


This is a page from the master 6801 listing used for AdamNet communication.

 

unknown.png

 

At this point, it has already determined that the Adam wants to do a read from the AdamNet, and does some additional checks before issuing the command on the wire. If any of these checks fail, the command is not sent, nor is any indication that the command is invalid. 


One of these checks is that the requested message size is the same as the maximum message size reported in the initial device roll call (which happens at boot or any time EOS asks for a scan of devices), and it was the reason I wasn't seeing my requested RECEIVE commands so I could retrieve the response from the #FujiNet.


So I will need to design the control protocol with this in mind.

 

-Thom

  • Like 2
Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Loading...
  • Recently Browsing   0 members

    • No registered users viewing this page.
×
×
  • Create New...