Search found 6468 matches

by hoglet
Sat Nov 18, 2017 1:08 pm
Forum: acorn atom
Topic: ICE T65/Z80/6809
Replies: 584
Views: 26992

Re: ICE T65/Z80/6809

Can you point me at a schematic for your Apple II?
by hoglet
Fri Nov 17, 2017 10:01 am
Forum: acorn atom
Topic: ICE T65/Z80/6809
Replies: 584
Views: 26992

Re: ICE T65/Z80/6809

Prime wrote:Has someone made the level converter boards or are a schematic / board layout available that I could use?

Jason Flynn has, and if you ask quickly he might be able to bring one to ABUG.
http://www.xeropage.co.uk/shop/index.ph ... er=product

Dave
by hoglet
Thu Nov 16, 2017 10:15 pm
Forum: hardware
Topic: New 65C02/W65C816 copro
Replies: 71
Views: 3336

Re: New 65C02/W65C816 copro

Does hoglet's OSWORD test help at all? http://stardot.org.uk/forums/viewtopic.php?p=106198#p106198 http://stardot.org.uk/forums/viewtopic.php?p=106346#p106346 I downloaded the ZIP and opened the file in a text editor. It looks like a BASIC program so I fired up BeebEm and imported it to a new SSD i...
by hoglet
Wed Nov 15, 2017 10:12 am
Forum: hardware
Topic: MMFS Development and Support
Replies: 693
Views: 31354

Re: MMFS Development and Support

Sorry, should have mentioned that in my initial post. I'm running the model B, sideways ram version V1.36 Hmm, I've tried and haven't been able to replicate this. Which probably just means there is some small but significant difference between your setup and mine. Could you possibly post a screen s...
by hoglet
Tue Nov 14, 2017 10:08 pm
Forum: hardware
Topic: MMFS Development and Support
Replies: 693
Views: 31354

Re: MMFS Development and Support

I'm running SWMMFS in one of my SWRAM banks and generally it works very well. However, I've noticed that immediately after a BREAK, the *FREE command doesn't work. If I do a *CAT first, it then works. Is this a problem with my setup, or can others replicate this? What version are you running? I'll ...
by hoglet
Tue Nov 14, 2017 10:07 pm
Forum: acorn atom
Topic: CMT Rom Board
Replies: 2
Views: 90

Re: CMT Rom Board

The manual and schematic are posted here:
http://www.stardot.org.uk/forums/viewto ... 44&t=13337

Try ?#A000=N where N is 1..4 to select ROM 1..4

Dave
by hoglet
Mon Nov 13, 2017 10:54 pm
Forum: hardware
Topic: EEPROM - the Holy Grail of Sideways Rom?
Replies: 340
Views: 25458

Re: EEPROM - the Holy Grail of Sideways Rom?

Are your 28C256s from a reputable source? There are lots of fakes on ebay.

Dave
by hoglet
Mon Nov 13, 2017 8:31 pm
Forum: other vintage computer hardware, software and games
Topic: Apple II problem.....
Replies: 6
Views: 182

Re: Apple II problem.....

Doh! That's caught be out a couple of times as well.

It should be only the STA that is doing the dummy read (unless you are crossing a page boundary, which I don't think you are).

Dave
by hoglet
Mon Nov 13, 2017 8:25 pm
Forum: emulators
Topic: MAME: Tube devices
Replies: 66
Views: 2558

Re: MAME: Tube devices

I tried changing how the device starts, by copying the ROM into RAM instead of paging it, and now it works. This isn't how the hardware works so I still need to find out why it failed before and fix it, but I now know where to look. Thanks for the help, but no need to continue comparing traces. Tha...
by hoglet
Mon Nov 13, 2017 6:08 pm
Forum: emulators
Topic: MAME: Tube devices
Replies: 66
Views: 2558

Re: MAME: Tube devices

Thanks, I'll work with that trace for now.

It looks like it is actually from v100, as the reset vector jumps to 0x3001730

But that's fine, as we have a disassembly for this version.

Dave
by hoglet
Mon Nov 13, 2017 4:34 pm
Forum: emulators
Topic: MAME: Tube devices
Replies: 66
Views: 2558

Re: MAME: Tube devices

Ah, it's this one: https://github.com/hoglet67/b-em/blob/master/roms/tube/ARMeval_100.rom Brazil version -.005 (8th August 1986) I'm now slightly confused as to what this is exactly.... But it does seem to work OK in PiTubeDirect. To make comparing traces easier, is there any chance you could make a...
by hoglet
Mon Nov 13, 2017 4:25 pm
Forum: emulators
Topic: MAME: Tube devices
Replies: 66
Views: 2558

Re: MAME: Tube devices

Just noticed something a little strange.... Your Client ROM trace doesn't seem to match the disassembly on JGH's site for v1.00: http://mdfs.net/Software/Tube/ARM/v100.zip And the SHA-1 sum is different: dmb@greenhog:~$ wget http://mdfs.net/Software/Tube/ARM/Eval100.rom dmb@greenhog:~$ sha1sum Eval1...
by hoglet
Mon Nov 13, 2017 1:15 pm
Forum: emulators
Topic: MAME: Tube devices
Replies: 66
Views: 2558

Re: MAME: Tube devices

Hmm, can't see anything obvious.

Do you get the same results with the v1.01 client ROM?

It might be worth trying to generate an address trace from the Co Processor, and we could compare that with a similar trace from PiTubeDirect.

Dave
by hoglet
Mon Nov 13, 2017 11:54 am
Forum: emulators
Topic: MAME: Tube devices
Replies: 66
Views: 2558

Re: MAME: Tube devices

Can you post a link to your Co Processor emulation code? We're using the ARM2 from MAME in PiTubeDirect and it's working fine. So it has to be something amiss in how you have wrapped it as a Co Processor. Here's the PiTubeDirect wrapper: https://github.com/hoglet67/PiTubeDirect/blob/master/src/copro...
by hoglet
Mon Nov 13, 2017 11:32 am
Forum: emulators
Topic: MAME: Tube devices
Replies: 66
Views: 2558

Re: MAME: Tube devices

Does escape have any effect?
by hoglet
Sun Nov 12, 2017 9:40 am
Forum: software: other
Topic: Acornsoft Workshop inlay instructions?
Replies: 4
Views: 155

Re: Acornsoft Workshop inlay instructions?

pau1ie wrote:Hoglet may have had it at some stage?
hoglet wrote:E23 Workshop (BBC 198?, Electron 1984)


Sorry Paul, I just checked (and looked at the pictures in the thread above again), and I don't think I ever had this.

The list I quoted seems to be the full list from here.
by hoglet
Sat Nov 11, 2017 4:30 pm
Forum: hardware
Topic: HEEEELLLLPPPPP!!!!!
Replies: 4
Views: 289

Re: HEEEELLLLPPPPP!!!!!

You asked this same question earlier, in a different thread, and both Charlie and myself replied:
http://www.stardot.org.uk/forums/viewto ... 62#p185462

It's best to ask a the question once, otherwise it gets confusing for everyone!
by hoglet
Sat Nov 11, 2017 8:25 am
Forum: for sale / freebies
Topic: Beeb SD card interfaces for sale
Replies: 31
Views: 3013

Re: Beeb SD card interfaces for sale

Do you already have a SD card filesystem ROM (e.g. MMFS or SmartSPI?) The latest versions of MMFS and SmartSPI work with: - FAT16 - FAT32 - SD cards (upto 2GB) - SDHC cards (4GB-16GB) Just avoid huge (32GB+ and/or SDXC cards) as these probably won't work. To get started, download a stock BEEB.MMB fi...
by hoglet
Fri Nov 10, 2017 6:51 pm
Forum: acorn atom
Topic: Need an AtoMMC board
Replies: 7
Views: 236

Re: Need an AtoMMC board

John Ferguson wrote:AtoMMC now received from Sirmorris.

You can find the latest Atom Software Archive here:
https://github.com/hoglet67/AtomSoftwar ... e/releases
(the first of the Zip files is the one you want to use on a normal AtoMMC)
by hoglet
Fri Nov 10, 2017 5:15 pm
Forum: hardware
Topic: Open Source Logic Analyzer Experiments
Replies: 29
Views: 1503

Re: Open Source Logic Analyzer Experiments

Hi Phill, Which driver are you using for your LCsoft board? I used fx2lafw-cypress-fx2.ihx which was what the sigrok page suggested, but I see in your screenshots that it's listed as "sigrok FX2 (16ch)" and in mine as "Cypress FX2". I'm not sure how it works on Windows, but on Li...
by hoglet
Fri Nov 10, 2017 3:25 pm
Forum: hardware
Topic: Unix on the Beeb
Replies: 36
Views: 988

Re: Unix on the Beeb

I've been looking at building the PDP11 emulator for the native Pi copro and have now figured out how to build C executables for it and have the stubs library connected up. Unfortunately, the emulator needs more than the current limit of 2MB as it is complaining that it can't allocate enough memory...
by hoglet
Fri Nov 10, 2017 1:23 pm
Forum: hardware
Topic: Beeb FPGA
Replies: 378
Views: 22150

Re: Beeb FPGA

vanfanel wrote:Ah, perfect! Where should we check for important updates on your codebase? For future reference I mean.

https://github.com/hoglet67/BeebFpga/commits/master
by hoglet
Fri Nov 10, 2017 10:06 am
Forum: software: other
Topic: BBC Basic for Z80
Replies: 19
Views: 492

Re: BBC Basic for Z80

Darn it .... of course !! no wonder it doesn't flippin' work ... Yes, that's the one, thing is I can't put a 128 onto the WE 12 rom board can I. I could pull the board out and use the standard beeb sockets and switch S33 over but I still wouldn't have enough sockets .... You should be able to use a...
by hoglet
Fri Nov 10, 2017 7:30 am
Forum: software: other
Topic: BBC Basic for Z80
Replies: 19
Views: 492

Re: BBC Basic for Z80

So is the Z80ROM corrupted, is my Pi zero software corrupted? I bought a micro sd ready programmed with the software from Kjell so I'm assuming it's correct but hey ... you never know. So has anyone got any ideas at all ? Is this the ROM we are talking about? http://mdfs.net/Software/BBCBasic/Z80Ba...
by hoglet
Thu Nov 09, 2017 8:24 pm
Forum: off-topic
Topic: What is the average age on here??
Replies: 207
Views: 14664

Re: What is the average age on here??

KayjayUK wrote:Am I the oldest on here ? I'm 66 next month, December. I was born in 1951.

Not even close:
http://www.stardot.org.uk/forums/viewto ... 71#p147271
by hoglet
Thu Nov 09, 2017 8:21 pm
Forum: off-topic
Topic: MiniPro TL866 Eprom Programmer
Replies: 11
Views: 178

Re: MiniPro TL866 Eprom Programmer

Many modern Chinese EPROM Programmers struggle with original 21V EPROM. I have a Genius G540 and it has the same issue.

Do you have any 27C64 / 27C128 / 27C256 EPROMs you could try instead?
by hoglet
Thu Nov 09, 2017 2:47 pm
Forum: hardware
Topic: Beeb FPGA
Replies: 378
Views: 22150

Re: Beeb FPGA

vanfanel wrote:@hoglet: can you build from this file's contents? That's what Azesmbog uploaded himself:
http://www.zxuno.com/forum/download/file.php?id=1555

Yes, I can.
by hoglet
Thu Nov 09, 2017 12:34 pm
Forum: hardware
Topic: Beeb FPGA
Replies: 378
Views: 22150

Re: Beeb FPGA

vanfanel wrote:@hoglet: the sources are now on the ZX-UNO svn here, in case you want to take a look:
http://svn.zxuno.com/svn/zxuno/cores/BBCMicro/test3/

Just tried building the Xilinx project, it seems a file is missing:
zxuno/cores/BBCMicro/test3/src/sn76489.vhd

Dave
by hoglet
Thu Nov 09, 2017 9:26 am
Forum: hardware
Topic: Beeb FPGA
Replies: 378
Views: 22150

Re: Beeb FPGA

Glad you got it sorted...

Dave
by hoglet
Wed Nov 08, 2017 6:23 pm
Forum: hardware
Topic: Beeb FPGA
Replies: 378
Views: 22150

Re: Beeb FPGA

@Hoglet: I was using the old version on the BEEB.MMB file, sorry. Using Bill Carr's version, audio during gameplay is perfect , but tittle screen music sounds distorted at some notes. Is that supposed to happen? Azesmbog did a single-game MMB version from Bill Carr's release, available here: http:/...

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