Acorn BBC B OS ROMs
Most emulators require the BASIC and OS ROMs to operate correctly:
basic2.zip - BBC Basic 2
os12.zip - Operating System 1.2
Once extracted, these may need to be renamed to work, as shown in the table below.
| pcBBC 1.2 | BeebEm 1.02 | BeebINC 0.99f | Horizon 1.10 | Model B 0.3 | |
| OS ROM | OS12.ROF | OS12 | OS.ROM | OSROM | OS12.ROM |
| BASIC ROM | BASIC2.ROE | BASIC2 | BASIC.ROM | BASIC | BASIC2.ROM |
| DISK ROM | DFS.ROD | WATFORD.ROM | N/A | N/A | N/A |
Disk OS ROMs
As shown above, some emulators also require DFS ROMs, the most popular of which are:
acorndfs.zip - Acorn’s 1770 DFS ROM for images stored in 31 catalogue format (1770 FDC in pcBBC). All images from this site are in this format. Use this for pcBBC (rename as on table above).
watford.zip - Watford Electronics DFS ROM. Some images, although none from my site, are stored in 62-file catalogues as opposed to the normal 31 of Acorn DFS. You would need this image to read them properly (8271 FDC in the pcBBC configuration screen). This ROM is also required for BeebEm. It is also useful in pcBBC, because it contains the *MRUN and *MLOAD commands, which allows some games that were originally from tape to work, although there is now a workaround for this– see the BBCIM guide page.
acp_e00.zip – ACPs ROM which allows PAGE to be set at E00 by locating the DFS workspace into RAM. This ROM will only work in pcBBC, and must be renamed as a RAM file instead, e.g. ACP_E00.RAF. Remember to remove your DFS ROM from the ROMIMG directory before you load pcBBC first!
acoradfs.zip - Acorn’s 1770 ADFS ROM – Advanced DFS support only works in pcBBC. Use this if you have some ADFS images– it wasn’t as popular as plain DFS, although a lot more advanced.
Other Acorn OS ROMs
Acorn BBC Master 128 ROMs
mast128.zip – Contains OS 3.20 and BASIC, DFS 2.24, Terminal 1.00, Edit 1.00 and ADFS 1.50 – might be useful for a future pcBBC?
Acorn BBC Master Compact ROMs
bbcmastc.zip – Contains OS 5.1, BASIC 4.86, ADFS 2.1 and utility ROMs.
Acorn Electron ROMs
electron.zip – Contains BASIC 2, OS and Plus 3 ADFS ROMs.
Acorn Application ROMs
view21.zip - View: Acorn’s word processor (shipped with most BBC Masters)
viewpro2.zip - View Professional containing both ROMs.
viewsht.zip - Viewsheet: Acorn’s spreadsheet.
viewstor.zip - Viewstore: Acorn’s database.
Acorn Language ROMs
comal.zip - Extended BBC Basic.
bcplrom.zip - Rom required to compliment the disk image (available on the Acornsoft page).
hibasic.zip - ROM which will run BASIC on the optional second processor (TUBE).
logorom.zip - Version 1.0 Single ROM.
lisprom.zip - Version 1.0 Single ROM.
pascrom.zip - Version 1.10 of Pascal containing both ROMs. Also disk image on Acornsoft page.
Superior Application ROMs
speech.zip - Speech! version 1.03.
Archimedes System ROMs
riscos31.zip - RISC OS 3.11 for use with Archie, the Archimedes emulator.
