Search found 109 matches
- Thu Nov 28, 2019 6:16 am
- Forum: hardware
- Topic: WE EPROM Programmer. ROM images etc
- Replies: 9
- Views: 284
Re: WE EPROM Programmer. ROM images etc
They were all LS types. The 7400 still is, the 74138s are currently HCT types. Thanks for the floating info; I did refer back to 74 series data sheets yesterday and didn't chance upon any that said what happened to voltage levels of unused gates. From what you say, following best practice may defini...
- Wed Nov 27, 2019 9:24 pm
- Forum: hardware
- Topic: WE EPROM Programmer. ROM images etc
- Replies: 9
- Views: 284
Re: WE EPROM Programmer. ROM images etc
Here's a just-completed schematic for the programmer. Please let me know if something looks wrong. WE-Eprom-Programmer.pdf It should be a help in sorting it out and vital for working out the correct FCxx addresses to use. It was not possible to extract the 8255 without damage to the socket. Having r...
- Mon Nov 25, 2019 8:57 pm
- Forum: hardware
- Topic: WE EPROM Programmer. ROM images etc
- Replies: 9
- Views: 284
Re: WE EPROM Programmer. ROM images etc
Thanks, but the design of the WE programmer is such that an internal 8255 is programmed by the ROM software to route the pins properly.
Alan
Alan
- Mon Nov 25, 2019 7:50 pm
- Forum: hardware
- Topic: WE EPROM Programmer. ROM images etc
- Replies: 9
- Views: 284
Re: WE EPROM Programmer. ROM images etc
Thanks Dave. For completeness there is this v4 posted elsewhere in this forum: 8ccf49a17e39f2d9ce22c03afbf99147 "EPROM V4 Mark David (C) MDM Software 1984" WTFEPRM.ROM The ROMS on http://archive.retro-kit.co.uk/bbc.nvg.org/rom/Watford/util/index.html are covered in your zip (as v4 and v8). The ROM i...
- Mon Nov 25, 2019 10:17 am
- Forum: introduce yourself
- Topic: Hi, from Katikati New Zealand!
- Replies: 13
- Views: 389
Re: Hi, from Katikati New Zealand!
Please pass on our regards to The 3rd Disgusting Fusiliers.
Coincidentally some of your kit is in the post to me. Good to see you on here.
Alan
Coincidentally some of your kit is in the post to me. Good to see you on here.
Alan
- Mon Nov 25, 2019 9:57 am
- Forum: hardware
- Topic: WE EPROM Programmer. ROM images etc
- Replies: 9
- Views: 284
WE EPROM Programmer. ROM images etc
I recently acquired a Watford Electronics Eprom programmer from eBay. It's not an Adder and doesn't say 'Mk II' on the case (though it does look like one). I assume it may be a 'Mk I'. It was in a bit of a state. Ultra-thin mains cable, blown chassis fuse, shorted bridge rectifier, the leads of some...
Re: EPROM?
I'm assuming you mean the "TL866 II plus", in which case the command line tool 'minipro' appears to work under Fedora Linux after doing a "dnf install minipro" dmesg then shows: [ 6406.745914] usb 1-13: new full-speed USB device number 11 using xhci_hcd [ 6406.874020] usb 1-13: New USB device found,...
- Wed Nov 13, 2019 9:43 am
- Forum: bbcmicro.co.uk
- Topic: Games with problems
- Replies: 50
- Views: 2533
Re: Games with problems
"Johnny" is showing some minor consequences of tape to disc conversion. First, the instruction screen disappears too quickly. Secondly the 'SAVE' command gives the option of "Tape or Memory" whereas disc is the permanent storage medium used. Thirdly, the save to disc bombs out owing to write protect...
- Tue Nov 05, 2019 6:50 pm
- Forum: bbcmicro.co.uk
- Topic: Games with problems
- Replies: 50
- Views: 2533
Re: Games with problems
International Megasports is the next misbehaving title. Under, at least, the following circumstances it crashes with an "at line" error. a) Press space bar to get through to "World Records" b) Press '1' to start c) Press 's' thrice to get past the player name screen (with name "AAA") d) Press 'N' at...
- Sat Oct 19, 2019 6:38 pm
- Forum: hardware
- Topic: Master underside port clips
- Replies: 2
- Views: 142
Re: Master underside port clips
It's worth contacting Mark at RetroClinic, suppling the photo. He's provided me with a latch in the past.
- Wed Oct 16, 2019 5:16 pm
- Forum: software: other
- Topic: DataCentre RCOPY
- Replies: 0
- Views: 218
DataCentre RCOPY
The original RCOPY utility (v1.00) supplied with the DataCentre doesn't work on, at least, a Master 128 as it needs to operate from an initialised DFS whereas it always contrives to start up from a RAMFS environment. This caused "Bad string" errors at track 00. Having disassembled the program I've c...
- Mon Oct 14, 2019 7:44 am
- Forum: hardware
- Topic: Master to VGA or DVI monitor
- Replies: 7
- Views: 300
Re: Master to VGA or DVI monitor
Another common configuration is an RGB to SCART cable plus an Elephas SCART to HDMI converter plus an HDMI to DVI cable.
- Sun Oct 13, 2019 1:51 pm
- Forum: bbcmicro.co.uk
- Topic: Games with problems
- Replies: 50
- Views: 2533
Re: Games with problems
The uploaded file was a completely untouched original, so it must not have worked correctly out of the box?! :roll: I guess that must be true then. The handling of shadow screen RAM is incorrect. An obvious consequence is that the bottom of the screen gets corrupted as the title page displays fee, ...
- Sun Oct 13, 2019 12:07 pm
- Forum: bbcmicro.co.uk
- Topic: Games with problems
- Replies: 50
- Views: 2533
- Sun Oct 13, 2019 6:21 am
- Forum: bbcmicro.co.uk
- Topic: Games with problems
- Replies: 50
- Views: 2533
Re: Games with problems
Thanks for that.
- Sat Oct 12, 2019 9:59 pm
- Forum: bbcmicro.co.uk
- Topic: Games with problems
- Replies: 50
- Views: 2533
Re: Games with problems
The latest interesting case I've come across is Giant Killer. Though the program works on a Model B, and of course that may fulfil all your criteria, the code was written with Master compatibility in mind. If it detects a Model B it chains a file called "GIANT" whereas if it detects a Master then a ...
- Fri Oct 11, 2019 2:46 pm
- Forum: general
- Topic: Today I received.....
- Replies: 5526
- Views: 451354
Re: Today I received.....
sc126.JPG A rather nice out-of-the-blue gift. A Z180 kit with the CPU clocked at 18MHz. 512K ROM WBW, 512K ROM Monitor, 512K of RAM and a sprinkling of useful interface ports (serial, SD, USB etc). The homepage is here: https://www.tindie.com/products/tindiescx/sc126-z180-sbc-motherboard-kit/ All I...
- Sat Oct 05, 2019 2:58 pm
- Forum: bbcmicro.co.uk
- Topic: Games with problems
- Replies: 50
- Views: 2533
Re: Games with problems
Thanks Bill for sorting the Y and N For that misattribution let me suggest another title. Flint's Gold. I wouldn't mention it, given that the program works for tape. However, you did alter Vampire Island so it'd load/save to disc. I got Flint's Gold working with discs on the Master by shifting it u...
- Sat Oct 05, 2019 12:17 pm
- Forum: bbcmicro.co.uk
- Topic: Games with problems
- Replies: 50
- Views: 2533
Re: Games with problems
but the game has that W and T key thing when you quit. I have tried looking through the code to change it to Y and N but no luck. Can anyone else find it? Mick. The game looks to use: .loop lda $ec bpl loop cmp #$a1 beq xxx cmp #$a3 bne loop The A1 and A3 are where W & T are coming from. They presu...
- Thu Oct 03, 2019 3:52 pm
- Forum: hardware
- Topic: Fixed: Mode 7 intermittent lines
- Replies: 45
- Views: 1518
Re: Fixed: Mode 7 intermittent lines
I am mystified by R102 and C42 on the input of IC40, one input of the two input NAND gets the 16MHz clock and the other input is connected to the 16MHz clock and this little RC circuit. Anyone know why this is fitted? Is it a Furber finger of god mod? The intent of the circuit appears to be to impr...
- Wed Oct 02, 2019 9:10 am
- Forum: bbcmicro.co.uk
- Topic: Games with problems
- Replies: 50
- Views: 2533
Re: Games with problems
I'm not sure what your policy is on bbcmicro.co.uk for handling saved games via PLAY. I've reported one such problem recently in a PM before this topic was set up. A new case in point is "Five Spheres of Goliath". If you type QUIT you have the option to save the game. This bombs-out because the file...
- Wed Oct 02, 2019 6:15 am
- Forum: hardware
- Topic: Fixed: Mode 7 intermittent lines
- Replies: 45
- Views: 1518
Re: Fixed: Mode 7 intermittent lines
I am wondering if this is like a RIFA scenario, replace on sight? I'll have to give the VideoNULA another try! When I first pointed out this fix in a different thread I noted that the problem has affected all my Model Bs but, so far, none of my Master 128s. The oscillator has the same linear design...
- Tue Oct 01, 2019 9:26 pm
- Forum: hardware
- Topic: My Master is back from the dead
- Replies: 19
- Views: 2798
Re: My Master is back from the dead
I've just got round to looking at a mobo with the Tinsley EPROMs that's been put aside in a cupboard for a couple of years. Having done MD5SUMs of mine and the ones zipped-up earlier in this thread I can report that they match i.e. this is just a confirmation that the data are OK.
- Sat Sep 28, 2019 6:40 am
- Forum: bbcmicro.co.uk
- Topic: Games with problems
- Replies: 50
- Views: 2533
Re: Games with problems
I am interested in what you are doing - Do you have notes on which programs are Master compatible? I would like to note this on bbcmicro. As you see most programs haven't been tested on a master. If you can supply me a list of which programs work and don't I would love to update the website with th...
- Wed Sep 25, 2019 1:07 pm
- Forum: bbcmicro.co.uk
- Topic: Games with problems
- Replies: 50
- Views: 2533
Re: Games with problems
Thanks. Good stuff. The original tape set PAGE to E00 so I left it at that. If shifting it up in memory has meant that disc saves now work then so much the better.Michael Brown wrote: ↑Wed Sep 25, 2019 12:51 pm
PS As for Dracula, due to finding an issue, we now have a version that saves to disc.
Alan
- Wed Sep 25, 2019 9:06 am
- Forum: bbcmicro.co.uk
- Topic: Games with problems
- Replies: 50
- Views: 2533
Re: Games with problems
Hi. I was just wondering if it was possible that variables set up in my !BOOT menu interfer with the games in such a way that they work fine via the menu but not from a different !BOOT loader such as the one used on the website. Also, I can see that some changes to your copy were made REMing out the...
- Tue Sep 24, 2019 6:29 pm
- Forum: bbcmicro.co.uk
- Topic: Games with problems
- Replies: 50
- Views: 2533
Re: Games with problems
Just to be clear, is my copy failing under BBC B settings or Master 128? All my games have been copied to work on a BBC B and I have not tried them in 128 mode. I'm only reporting problems doing a PLAY on the web site and running the provided download within BeebEm 4.14 configured as a Model B. The...
- Mon Sep 23, 2019 9:18 am
- Forum: bbcmicro.co.uk
- Topic: Games with problems
- Replies: 50
- Views: 2533
Games with problems
I'm opening this thread by request of Lee. As I work my way through the list doing conversions I've been spotting a few problems I've PMd Lee with. This thread allows me to report them so they can be fixed openly. So, starting with 767 Advanced Flight Simulator. The program hangs at the external coc...
- Sun Sep 22, 2019 2:43 pm
- Forum: general
- Topic: Issue booting BBC Micro for first time
- Replies: 1
- Views: 147
Re: Issue booting BBC Micro for first time
*ST is an abbreviation and, as such, needs to end with a full stop i.e. *ST.
Of course you can always use the full command *STATUS
Of course you can always use the full command *STATUS
- Sun Sep 22, 2019 11:21 am
- Forum: software: classic games
- Topic: Anyone fancy cracking Dracula Island?
- Replies: 8
- Views: 937
Re: Anyone fancy cracking Dracula Island?
My usual preference is, for uncracked programs, to make the operation of the program and loader as clear as possible, within reason. Hence, for personal use, I'd go with the version you've derived from what I posted (leaving K just displaying its title info). However, I know there are purists out th...