DFS mode doesn't work

[Maverick-Shark]

Hi,
I modified the BBC.ROM file by replacing the MMFS with the DFS ROM.

But when core boots, selecting DFS v0.9 ROM, prompt and BASIC ROM message aren't displayed on the screen:

BBC Computer 32K
Acorn DFS
_

Same happens if I use WDFS v1.44 ROM.

And if I use a DNFS ROM, the ROM message isn't displayed but I got BASIC and prompt:

BBC Computer 32K
BASIC
>

When I use a MMFS ROM it works fine:

BBC Computer 32K
Model B MMFS
BASIC
>

Could you please fix it?

Thanks and Best Regards,
Shark

[Maverick-Shark]

Hi,
I think the issue is in this signal assignment:

beeb/rtl/bbc.v

Line 962 in 0a0f283

io_sheila ? 8'b11111110 :

If I comment out this line, everything works fine.

Regards,
Shark

[gyurco]

Thanks, I'll check

[Maverick-Shark]

Hi,
Finally I solved the wd1772 issue (Poseidon board) using DFS v2.26 ROM on Model B. Now we have wd1772 on Model B!!!
But nowadays I'm still working to add the Acorn z80...

You can see my progress (z80 branch):
https://github.com/Maverick-Shark/beeb/tree/z80

Regards,
Shark