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General Category => Other retro => Topic started by: dcdrac on 20:41, 23 April 13

Title: Installing a ROM into a BBC B
Post by: dcdrac on 20:41, 23 April 13
I need to install a ROM chip into a BBC B from the picture I have found it seems the slots are at the front.
The working non smelly BBC B I have has the Watford DFS installed in it, the ROM  I need to install is Floppy drive emulator controller, would this conflict with the Watford DFS?

(http://acorn.chriswhy.co.uk/Pics/BBCB3L.jpg)
Title: Re: Installing a ROM into a BBC B
Post by: dcdrac on 21:56, 23 April 13
ok opened up two of the beebs one has all its rom slots full will have to find out what they are, the other one, one of the smelly but working ones has its rom slots free.
Title: Re: Installing a ROM into a BBC B
Post by: Bryce on 10:27, 24 April 13
Hi dcdrac,
       You can use the *ROMS command to list what ROMs are initialised in the BBC. To disable a ROM you use the *UNPLUG command and to enable a ROM use the *INSERT command. As well as that, you can use the *CO. FILE command to define which ROM is used as default for file-system control. So *CO. FILE, 9 would tell the BBC to direct file system requests to the ROM in slot 9. So both ROMs could be installed and initialised and still not clash.

Bryce.
Title: Re: Installing a ROM into a BBC B
Post by: TheCorfiot on 16:27, 24 April 13
Hi dcdrac,
       You can use the *ROMS command to list what ROMs are initialised in the BBC. To disable a ROM you use the *UNPLUG command and to enable a ROM use the *INSERT command. As well as that, you can use the *CO. FILE command to define which ROM is used as default for file-system control. So *CO. FILE, 9 would tell the BBC to direct file system requests to the ROM in slot 9. So both ROMs could be installed and initialised and still not clash.

Bryce.

This info, although absolutely correct only applies to Master MOS 3.20 or higher not Model B's running OS 1.20 unless of course you fit some utility rom first to provide similar functions....

TC  :)
Title: Re: Installing a ROM into a BBC B
Post by: Bryce on 16:41, 24 April 13
Oops, sorry. I only have Electron and Master experience. I thought those commands worked on all BBCs. :(

I should stick to electronics :)

Bryce.
Title: Re: Installing a ROM into a BBC B
Post by: dcdrac on 20:33, 24 April 13
TheCorfiot I will be getting the BBCs off to you in two weeks time after payday.
Title: Re: Installing a ROM into a BBC B
Post by: TheCorfiot on 20:46, 24 April 13
TheCorfiot I will be getting the BBCs off to you in two weeks time after payday.

That's cool my friend, reckon we can get some nice mods in there for you too...maybe even a Romboard and some roms.

TC   ;)
Title: Re: Installing a ROM into a BBC B
Post by: TFM on 22:26, 24 April 13
WoW. That picture is amazing - what an IC grave!  ;)
Title: Re: Installing a ROM into a BBC B
Post by: Bryce on 22:45, 24 April 13
WoW. That picture is amazing - what an IC grave!  ;)

Why grave? They are all alive and well :)

Bryce.
Title: Re: Installing a ROM into a BBC B
Post by: TFM on 00:18, 25 April 13
Let's hope they stay well. However for best wished a Z80 is a prerequisite here  ;D ;)
Title: Re: Installing a ROM into a BBC B
Post by: TheCorfiot on 00:47, 25 April 13
Let's hope they stay well. However for best wished a Z80 is a prerequisite here  ;D ;)

Ah cmon behave,,, Z80 and 6502 can live together in harmony....
I was brought up on the 6502 but I do enjoy thge Z80 too in my MTX512 and CPC's....
Not that horrid ZX Sphinctum though lol.

The Commodore C128, now that actually has a 6502 and a Z80 on the Mainboard...

My BBC micro system at home also has a Z80 CoProcessor too.....

See it's easy.......

TC  ;)
Title: Re: Installing a ROM into a BBC B
Post by: TFM on 02:09, 25 April 13
Haha, well I was born under the Z80, so it will remain my favorite cpu. And some fun about other cpus.... well, I just can't resist ;-)
But never mind - don't take it serious :-DDD
 
Title: Re: Installing a ROM into a BBC B
Post by: Bryce on 10:35, 25 April 13
I started on the 6800, then moved to the 6502 and then to the Z80. All of the home computer 8 bit processors are great :) It's how they are implemented that makes the difference.

Bryce.
Title: Re: Installing a ROM into a BBC B
Post by: TFM on 18:47, 25 April 13
Even the SCMP  :o