BeebEm version 1.6

the place for discussing bbc micro & electron software, emulators, hardware and other issues
MikeWyatt22
Posts: 6
Joined: Wed Sep 15, 2004 8:50 pm

BeebEm version 1.6

Postby MikeWyatt22 » Sat Oct 16, 2004 8:51 pm

You wait years for a new version of BeebEm then two come along at once! Version 1.6 is on my web site:<br>
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<!--EZCODE AUTOLINK START--><a href="http://www.mikebuk.dsl.pipex.com/beebem/index.html">www.mikebuk.dsl.pipex.com...index.html</a><!--EZCODE AUTOLINK END--><br>
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Thanks go to Ken Lowe for the IntegraB and B Plus support. The other changes are mainly bug fixes.<br>
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Also check out OddJob - I previously unreleased game!<br>
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Mike<br>
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tartartar
Posts: 4
Joined: Sun Sep 05, 2004 10:02 am

B+ support (some problems with configuration)

Postby tartartar » Sat Oct 16, 2004 9:49 pm

You beauty Mike! I've been looking for "64K B Plus" support in BeebEm for aaggggggeesss! Thanks very much.<br>
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A problem I've seen is that there is no easy way to select between a B+64 and a B+128 through the GUI. And there are issues with the Roms.cfg file. It is strange that by default there are 4 sideways RAM pages listed in the B+ configuration section, and yet choosing the B+ through the GUI only reads "Acorn OS 64K". I think this may be to do with using the Watford 1.44 DFS, because when I edit the roms.cfg to specify the Acorn 1770 DFS (version 2.26), suddenly the 4 RAM pages are recognised and the boot up reads "Acorn OS 128K".<br>
Any idea what the problem is here?<br>
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Another problem is that I couldn't select the 1770 DFS through the GUI for the B+ (which would be it's natural filing system). Instead I had to edit the Roms.cfg file and replace in the BPlus section 'WDFS.ROM" with "DFS-2.26.ROM".<br>
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And it would be great if the configuration of the roms.cfg through the emulator GUI options worked 100% too.<br>
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Just an FYI:<br>
Another thing I did notice with "B-Em" and "Model-B" (the other prominent beeb emulators, it that they DON'T accurately emulate the model B+. I'm gonna play around with your B+ support in BeebEm v1.6 to see if it's better than theirs!<br>
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Cheers for the new version. It is very encouraging!<br>
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p.s. maybe you should rename the title bar to read: BBC B/BBC B+ 64/Master 128 emulator! <!--EZCODE EMOTICON START ;) --><img src=http://www.ezboard.com/images/emoticons/wink.gif ALT=";)"><!--EZCODE EMOTICON END--> <br>
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KenLowe
Posts: 157
Joined: Mon Oct 18, 2004 4:35 pm
Location: Scotland

HowTo Switch B+ Modes

Postby KenLowe » Mon Oct 18, 2004 4:35 pm

Selecting between B+64 and B+128 can be done from the GUI. As can another couple of modes in between. It's a matter of knowing what to do <!--EZCODE EMOTICON START :) --><img src=http://www.ezboard.com/images/emoticons/smile.gif ALT=":)"><!--EZCODE EMOTICON END--> <br>
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As you've already noticed, the B+ doesn't work particularly well with the Watford DFS. This isn't a problem with the emulator. It's just that the Watford DFS wasn't written with the B+ in mind.<br>
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The best combination for the B+ is the Acorn 1770 DFS v2.26 (although I'm sure there are other DFSs out there which work correctly with the B+), and the Acorn 1770 floppy controller. To set this up correctly, you need to:<br>
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1. change the DFS rom in the rom.cfg file (perhaps one day, you might be able to switch roms from the GUI instead of altering the roms.cfg file). <br>
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2. select the Acorn1770.dll floppy controller from the Options/Model B Floppy Controller/Select FDC Board... menu in BeebEm.<br>
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Once you've changed your configuration you should get the "Acorn OS 128K" prompt. If not - don't panic... In order to get the 128K prompt, you must 'Allow ROM Writes' to the rom banks 0, 1, C & D.<br>
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If you disable ROM Writes to any of these banks, then the startup prompt will change accordingly. By selectively disabling 1, 2, 3 or all 4 of the rom banks, you can get the following startup prompts:<br>
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"Acorn OS 128K" (with 0 ROM writes disabled)<br>
"Acorn OS 112K" (with 1 ROM write disabled)<br>
"Acorn OS 96K" (with 2 ROM writes disabled)<br>
"Acorn OS 80K" (with 3 ROM writes disabled)<br>
"Acorn OS 64K" (with 4 ROM writes disabled)<br>
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Simple really <!--EZCODE EMOTICON START :) --><img src=http://www.ezboard.com/images/emoticons/smile.gif ALT=":)"><!--EZCODE EMOTICON END--> <br>
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Ken. <p></p><i></i>


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