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tom-seddon / b2

BBC Micro emulator for Windows, OS X, and Linux
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Watford DDFS in DD mode #114

Open tom-seddon opened 4 years ago

tom-seddon commented 4 years ago

It seems to work OK for single density stuff, but I've never seen any DDFS images to test it with.

https://stardot.org.uk/forums/viewtopic.php?f=3&t=19792 links to a Master-compatible DDFS ROM, which seems to work.

Make some DD disks, get some images of them, and check it works!

jamesyoungman commented 4 years ago

In case it's useful, here is a basic double-density WDFS image. The *CAT output should be:

             (02)   Double density
Drive 0             Option 0 (off)
Directory :0.$      Library :0.$
Work file $.

     WHATIS

01 files of 62 on 80 tracks

The contents of WHATIS are:

000000 54 48 49 53 20 49 53 20 THIS IS 
000008 41 20 57 44 46 53 20 36 A WDFS 6
000016 32 2D 46 49 4C 45 20 4D 2-FILE M
000024 46 4D 20 44 49 53 43 2E FM DISC.
000032 0D ** ** ** ** ** ** ** ........

wdfs-dd.hfe.gz