Jump to content
manterola

1050 Duplicator: Duplicated

Recommended Posts

Hi,

 

   I'm a bit behind with my firmware efforts, I think @manterolais now in the lead!

 

   The DW START pair at the end of the sources specifies the 6502 power up/ reset vector(s) at the very top of memory for the firmware, so I don't think it should be removed.

 

   I think the problem is that the object file produced by the Macro Assembler would have gotten loaded into the 8-bits memory, then written out to an EPROM directly - maybe this is an undocumented step? The LOC and ORG directives allow assembling code with a given base address, but stored at another address (if I recall correctly).

 

   I only found one file had extra characters at the end, but it was enough to cause problems. Maybe this is an issue with the archive.

Share this post


Link to post
Share on other sites

Yep. I needed to move the last four bytes (Start address twice) to the end of the 8kb by inserting zeros right after the DTI version and copyright text stuff (stamp?). Then I compared the files and the only difference was an FF instead 00.

So, we have the sources working. 

 

 

  • Like 2

Share this post


Link to post
Share on other sites

That's great news!

 

There's an option in ATASM that will build a pure binary (no headers), but I'm not sure this can be done with AMA. On the other hand, writing a simple program to consolidate all the segments into 1 block should be easy, but for a ROM I think you should only have 2 segments in the object file, e.g. block of code plus start address.

Share this post


Link to post
Share on other sites

Has anyone thought of converting the source for being used in mads or ca65...  

I only mention this since we have the OS sources compilable in CA65 and the 1050 SRC in mads.

Making changes and burning on the TL866 is much faster that way :)

 

 

 

Share this post


Link to post
Share on other sites
37 minutes ago, kheller2 said:

Has anyone thought of converting the source for being used in mads or ca65... 

Not for mads or ca65 but I did that for atasm a while ago.

 

I've attached my sources, see Makefile for atasm command line flags used to build (the sources can both build 3.10 and 3.00).

 

so long,

 

Hias

duplicator-3.00-3.10-atasm.zip

Share this post


Link to post
Share on other sites
5 hours ago, HiassofT said:

Not for mads or ca65 but I did that for atasm a while ago.

 

I've attached my sources, see Makefile for atasm command line flags used to build (the sources can both build 3.10 and 3.00).

 

so long,

 

Hias

duplicator-3.00-3.10-atasm.zip 30.51 kB · 6 downloads

Fantastic! The sources assembled at the first try, without any problem. 

Much appreciated!

Share this post


Link to post
Share on other sites

HI,

 

   Can anyone with a Duplicator 1050 and also a US Doubler try/test the attached Duplicator 1050 firmware? Version upped to 3.20 to avoid confusion.

 

   The (fixed?) bug is described by @ijor in: 

 

 

@manterola has kindly tested the 3.20 firmware, and it seems to work fine, but he doesn't have a US Doubler to test with for this bug fix. This should also work for MegaSpeedy owners (though I have no idea how to update the firmware for the Duplicator 1050 slot on a MegaSpeedy). Possibly any clones of the Duplicator 1050 too, but obviously a little less certain of that. 

 

Sources are at: https://github.com/e474/Disk-Duplicator-1050-Firmware

 

 

duplicator-3.20.rom

  • Like 2

Share this post


Link to post
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...