Search found 719 matches

by Coeus
Mon Apr 23, 2018 8:28 pm
Forum: emulators
Topic: B-Em
Replies: 365
Views: 18975

Re: B-Em

tricky wrote:...I have a config file with several layouts for each of several joysticks and then select the appropriate one...


Do you have an example config file, please?
by Coeus
Mon Apr 23, 2018 6:46 pm
Forum: emulators
Topic: B-Em
Replies: 365
Views: 18975

Re: B-Em

Is there a way to redefine the BREAK key? There wasn't but I have introduced it in commit 9f4451d4d2807ed5097920f42d063ae5641d9636 It doesn't recognise my joystick (HORI Fighting stick - PS3) and there doesn't seem to be an option to enable joysticks. In my version of b-em, I support mapping joysti...
by Coeus
Mon Apr 23, 2018 5:21 pm
Forum: emulators
Topic: B-Em
Replies: 365
Views: 18975

Re: B-Em

Coeus wrote:I am using MingW, though a slightly later version. I'll check out which when back home and have access to the Windows VM I have it installed on.


It's gcc version 7.2.0 (i686-win32-dwarf-rev1, Built by MinGW-W64 project)
by Coeus
Mon Apr 23, 2018 5:08 pm
Forum: emulators
Topic: B-Em
Replies: 365
Views: 18975

Re: B-Em

Yes, I realized by myself that the screenshot taking place in the code would be a good start, but could not figure out how the struct BITMAP handling in Allegro 4 works. I am not too familiar with graphics or videos at all. By the way, VICE, Versatile Commodore Emulator, contains a whole video libr...
by Coeus
Mon Apr 23, 2018 4:23 pm
Forum: emulators
Topic: B-Em
Replies: 365
Views: 18975

Re: B-Em

I wondered whether the ORIC AVI RLE video encoder could be taken from Oricutron and placed into B-em source tree ... My minimal code is here: https://github.com/KaleviKolttonen/b-em/tree/video-capture I had a quick look at that, looking specifically where I'd expect you to grab the video output, i....
by Coeus
Mon Apr 23, 2018 1:11 pm
Forum: emulators
Topic: B-Em
Replies: 365
Views: 18975

Re: B-Em

I've just built on Ubuntu 16.04 with Allegro 5.2.4 and don't see any evidence of an issue with checkboxes. The issue with check-boxes is Windows-only. On Linux, the native dialog extension uses GTK which handles the checking and unchecking of check-box menu items internally. On Windows this doesn't...
by Coeus
Mon Apr 23, 2018 11:22 am
Forum: emulators
Topic: B-Em
Replies: 365
Views: 18975

Re: B-Em

Steve, I'm currently trying to build the sf/allegro5 on Windows using the MinGW environment I previously used for B-Em and Atomulator. I need to add allegro5 to this. Do you know which version of allegro5 is needed? https://github.com/liballeg/allegro5/releases/tag/5.2.2.0 I have updated the README...
by Coeus
Sun Apr 22, 2018 9:59 pm
Forum: emulators
Topic: B-Em
Replies: 365
Views: 18975

Re: B-Em

I see the bugs I raised have been fixed, but I don't know enough about git to test it. If I clone the repository the last commit I get is from 31 March, but the commit for the bug I raised was "4 days ago", which I assume means 18 April. How do I download this version of the code to test ...
by Coeus
Sun Apr 22, 2018 9:53 pm
Forum: emulators
Topic: Video Timing
Replies: 15
Views: 400

Re: Video Timing

The only difference I’ve noticed between b-em (and jsbeeb) vs real hardware is when setting the screen address registers on the final visible scanline - I’m seeing that new address at the bottom of the screen instead of scanline 0 as I’d expect (as it shouldn’t be latched until the new CRTC cycle.)...
by Coeus
Sun Apr 22, 2018 11:44 am
Forum: off-topic
Topic: Strange Laptop Keyboard Fault
Replies: 11
Views: 419

Re: Strange Laptop Keyboard Fault

Another twist in the keyboard issue - it had been working reliably until I started B-Em and then it stopped working. I had previously noticed that touching a key to interact with the BIOS before the OS has booted increased the chance of it not working. I am now beginning to think that there is a des...
by Coeus
Sun Apr 22, 2018 11:01 am
Forum: emulators
Topic: Video Timing
Replies: 15
Views: 400

Re: Video Timing

Does the 6845 ever test any value for anything other than exactly equal? That's a very good point. How I arrived at the fix was I added a extra: if (vc >= crtc[6]) dispen = 0; comparison which was executed each time through the video_poll code. That seemed to solve the problem. Then I tried moving ...
by Coeus
Sat Apr 21, 2018 12:29 pm
Forum: emulators
Topic: Video Timing
Replies: 15
Views: 400

Re: Video Timing

Thanks, everyone. I have solved it now. What I ad originally thought was a vertical timing issue, because the B-Em was missing the black border above the graphics, turned out to be a blanking issue instead. What eventually gave me the clue was that rhe first few lines of the display were radically d...
by Coeus
Fri Apr 20, 2018 6:10 pm
Forum: emulators
Topic: Video Timing
Replies: 15
Views: 400

Video Timing

Where is the best description of how the CRTC timing registers interact with a typical monitor/TV? I am trying to understand why B-Em and b2 have the image for the NuLA SOTB demo in a different place in the screen. It looks like this demo sets some of the registers to rather novel values where I don...
by Coeus
Fri Apr 20, 2018 10:50 am
Forum: stardot.org.uk
Topic: https certificates?
Replies: 43
Views: 2611

Re: https certificates?

And further to the discussion of not trusting CAs, I found this https://security.googleblog.com/2017/09 ... antec.html
by Coeus
Wed Apr 18, 2018 6:33 pm
Forum: emulators
Topic: B-Em
Replies: 365
Views: 18975

Re: B-Em

That scrolling demo seems to be missing NuLA. Is it the NuLA version? I first saw this as a NuLA demo but I have since discovered there is a version on the B-Em demo disc that came with version 2.2 and is still in the discs directory which does not attempt to make use of NuLA. Interestingly the NuL...
by Coeus
Tue Apr 17, 2018 7:55 pm
Forum: emulators
Topic: B-Em
Replies: 365
Views: 18975

Re: B-Em

tricky wrote:Oops, teletext colours are wrong, maybe NuLA isn't implemented correctly! - not that Centipede uses it!
Testing with the attached centipede build.


I've found the bug. Fixed in https://github.com/stardot/b-em/commit/ ... 61bbdf83a4
by Coeus
Tue Apr 17, 2018 7:53 pm
Forum: emulators
Topic: B-Em
Replies: 365
Views: 18975

Re: B-Em

That is running. Is there an easy way to get the "beeb" layout keyboard? @ is * # is ] actually, it looks like it might only be those two. That is a quirk of Allegro 5. For some strange reason it uses the keymap for the keyboard you actually have on Linux and OS/X but the keymap for the U...
by Coeus
Tue Apr 17, 2018 7:03 pm
Forum: emulators
Topic: B-Em
Replies: 365
Views: 18975

Re: B-Em

when I run it. It seems to be looking for b-em.cfg, but it doesn't look in the current directory (I am running it out of the directory where I compiled it). If I copy the file into ~/.config/b-em it fires up OK. I assume if I did an install it would find stuff OK, but I didn't check. Yes, if you in...
by Coeus
Tue Apr 17, 2018 6:46 pm
Forum: emulators
Topic: B-Em
Replies: 365
Views: 18975

Re: B-Em

tricky wrote:And libstdc++-6.dll


Ok, that's there too now. I did also try linking to a static version of Allegro5 but this complained unrecognised file format. I'll keep working on it.
by Coeus
Tue Apr 17, 2018 5:39 pm
Forum: emulators
Topic: B-Em
Replies: 365
Views: 18975

Re: B-Em

tricky wrote:...For now, I'll re-package with the missing DLL.


Try now.
by Coeus
Tue Apr 17, 2018 5:25 pm
Forum: emulators
Topic: B-Em
Replies: 365
Views: 18975

Re: B-Em

...Somethign odd happening with ROMs on Masters. Will raise an issue once I am sure I am not doing something mad or missed something. Is it the cmos file? If you run *ROMS are they all unplugged? If so the cmos may be all zeros. If it is this issue the proceed as you would with a real master after ...
by Coeus
Tue Apr 17, 2018 12:42 pm
Forum: hardware
Topic: Sideways RAM on the BBC Micro
Replies: 39
Views: 1192

Re: Sideways RAM on the BBC Micro

...For example, I think the assembler I used all those years ago was probably ASM and its counterpart, DISASM. Anyone use those still or has EXMON superseded them? Does anyone have instructions for ASM/DISASM by any chance? I don't remember those but have you tried the 8bs site? Apart from the buil...
by Coeus
Mon Apr 16, 2018 10:44 pm
Forum: emulators
Topic: B-Em
Replies: 365
Views: 18975

Re: B-Em

In a previous thread I mentioned that there have been changes to B-Em since release 2.2. There had also been some discussion about porting it away from Allegro 4 and I believe that was resolved in favour of Allegro 5. I now have an Allegro 5 version which works as far as I can tell but could do with...
by Coeus
Mon Apr 16, 2018 10:20 pm
Forum: emulators
Topic: Which Emulator for BBC Micro on Linux?
Replies: 37
Views: 1175

Re: Which Emulator for BBC Micro on Linux?

There is no error message. It just stops short. One has to press Return to exit anyway, which goes back to the prompt from where it is possible to type and do a RUN. Very strange. Where are you *EXECing the file from? An SSD? if so does it *TYPE correctly? Any weird characters in it? You could try ...
by Coeus
Sun Apr 15, 2018 8:14 pm
Forum: introduce yourself
Topic: New guy
Replies: 16
Views: 452

Re: New guy

Welcome aboard. There is no doubt the BBC micro is a very significant piece of computing history and we like to keep them going. If yours turns out not to be as simple a problem as you think do post on the 8bit hardware forum here where there are plenty of knowledgeable people to help. And good luck...
by Coeus
Sun Apr 15, 2018 7:58 pm
Forum: other vintage computer hardware, software and games
Topic: A special day for a very special computer!
Replies: 13
Views: 655

Re: A special day for a very special computer!

I remember trying a ZX81 when I was younger and being very underwhelmed. It may have come from a boot sale but I can't remember the circ's. It was certainly many years after its heyday. It was hard to the touch, it did nothing (as I thought) and I wondered what a pity it wasn't at least a Spectrum....
by Coeus
Sun Apr 15, 2018 7:56 pm
Forum: other vintage computer hardware, software and games
Topic: A special day for a very special computer!
Replies: 13
Views: 655

Re: A special day for a very special computer!

I remember trying a ZX81 when I was younger and being very underwhelmed. It may have come from a boot sale but I can't remember the circ's. It was certainly many years after its heyday. It was hard to the touch, it did nothing (as I thought) and I wondered what a pity it wasn't at least a Spectrum....
by Coeus
Fri Apr 13, 2018 8:36 pm
Forum: hardware
Topic: Tv display top line problem
Replies: 12
Views: 409

Re: Tv display top line problem

Old doesn't necessarily mean nonadjustable. I remember BITD old valve TV sets having a vertical height adjustment. Ideally you'd want a vertical position adjustment too. If the control is not obviously available on the outside of the set - check round the back too, and is not covered by a menu, I'd ...
by Coeus
Fri Apr 13, 2018 4:54 pm
Forum: stardot.org.uk
Topic: https certificates?
Replies: 43
Views: 2611

Re: https certificates?

I was about to comment about the GNOME Web Brower (on Linux, otherwise known as epiphany) failing to load pages from this site due to an SSL protocol error but the problem seems to have gone away. I think I remember Firefox having a similar problem but that too is now working. What I believe happene...
by Coeus
Fri Apr 13, 2018 4:43 pm
Forum: emulators
Topic: Which Emulator for BBC Micro on Linux?
Replies: 37
Views: 1175

Re: Which Emulator for BBC Micro on Linux?

I've been working on a BASIC program as a refresher and to put into practice the things learned. The program is now approaching 140 lines of code and I am finding that using *EXEC to load from a text file no longer imports all of the lines. I am wondering whether this is down to memory? I am gettin...