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- Wed May 08, 2024 10:58 am
- Forum: ZXDB Discussion
- Topic: Manic Miner/Jet Set Willy no longer available
- Replies: 30
- Views: 1162
- Thu May 02, 2024 9:11 pm
- Forum: Hardware
- Topic: Pico based Spectrum ROM interface (photoessay)
- Replies: 37
- Views: 1620
Re: Pico based Spectrum ROM interface (photoessay)
That's is good and no worries please ask away, glad there is interest.
TomD
TomD
- Thu May 02, 2024 1:02 pm
- Forum: Hardware
- Topic: Pico based Spectrum ROM interface (photoessay)
- Replies: 37
- Views: 1620
Re: Pico based Spectrum ROM interface (photoessay)
First of all, @dfzx and @TomD, thank you so much for your hard work on this! It never ceases to amaze me what can be done with a modern microcontroller! I decided to build a https://github.com/TomDDG/ZXPicoIF2Lite board for my 48K Speccy, as I think it will be the perfect upgrade. I downloaded the ...
- Thu Apr 25, 2024 1:31 pm
- Forum: Emulators
- Topic: Experience with R36S HandHeld
- Replies: 1
- Views: 316
- Wed Apr 24, 2024 11:31 pm
- Forum: Games/Software
- Topic: Jetpac to Microdrive
- Replies: 25
- Views: 1178
Re: Jetpac to Microdrive
Going a bit off topic but how fast is a microdrive? Do you get raster lines during the process? Very fast, well for an 8bit computer anyway. The quoted speed is 15kB/s so if the sectors are defragmented/optimised (i.e. in sequence) you can easily load a 48k game in 3-4 seconds, 128k longer obviousl...
- Tue Apr 23, 2024 8:35 pm
- Forum: Emulators
- Topic: Experience with R36S HandHeld
- Replies: 1
- Views: 316
Experience with R36S HandHeld
Just thought I would post on my experience with one of the new(ish) and inexpensive R36S handhelds which are ubiquitous at the moment, in case anybody is looking for a very cheap handheld for some Spectrum gaming on the go. I know there are loads of videos on it already so this is focused purely on ...
- Sun Apr 21, 2024 2:36 pm
- Forum: Games/Software
- Topic: Jetpac to Microdrive
- Replies: 25
- Views: 1178
Re: Jetpac to Microdrive
Also although not the same game this is how TranzAm from Ultimate was transferred to Cartridge back in the day. Assume a similar approach could be taken for JetPac. https://scontent.flba1-1.fna.fbcdn.net/v/t1.18169-9/21617698_1677724235593492_5794928763791624511_n.jpg?_nc_cat=107&ccb=1-7&_nc...
- Sun Apr 21, 2024 2:11 pm
- Forum: Games/Software
- Topic: Jetpac to Microdrive
- Replies: 25
- Views: 1178
Re: Jetpac to Microdrive
I understand about 25% of that 🤣 Looks like I need lessons.... To complicate things I am using a VDriveZX rather than a traditional microdrive If you are using a vDriveZX then you can use my Z80onMDR utility to create a microdrive cartridge with JetPac on which will do the conversion for you and re...
- Wed Apr 17, 2024 12:11 am
- Forum: Programming
- Topic: pasmo won't compile on my mac
- Replies: 6
- Views: 383
Re: pasmo won't compile on my mac
I had the same issue so thanks for posting as this also solved it for me. One small change is you've missed the = after std.LunarWilly wrote: ↑Tue Apr 16, 2024 9:04 pm Fixed! I had to set the c++ compiler standard flag usingCheers for your helpCode: Select all
./configure CXXFLAGS=-stdc++17
Code: Select all
./configure CXXFLAGS=-std=c++17
- Tue Apr 16, 2024 9:00 am
- Forum: Programming
- Topic: Official result Game of Life -contest
- Replies: 1
- Views: 219
Re: Official result Game of Life -contest
Thanks for sharing the code was a fun compo. If anybody is remotely interested this was my best effort with a "good" editor and a frame iteration counter, a whopping 217bytes :-) TomD ; -------------------------------------------------------------------------------------------- ; Game of L...
- Wed Apr 10, 2024 1:50 pm
- Forum: Other Retro Stuff
- Topic: any suggestion for a good portable device that can play zx spectrum games?
- Replies: 10
- Views: 982
Re: any suggestion for a good portable device that can play zx spectrum games?
I fancy trying one of the new budget handhelds, good video on them here
The R36S uses ArkOS which has a Spectrum emulator, the others probably do as well but not checked.
TomD
The R36S uses ArkOS which has a Spectrum emulator, the others probably do as well but not checked.
TomD
- Tue Apr 09, 2024 9:17 pm
- Forum: Programming
- Topic: Kempston support
- Replies: 16
- Views: 435
Re: Kempston support
Ah right, I realised why I never bothered with Kempston, if no Kempston is present IN31 automatically reads it as fire being pressed. That means the game starts automatically with Kempston controls even though no Kempston is connected. Following code from JetSet Willy checks if Kempston is connecte...
- Tue Apr 09, 2024 8:29 pm
- Forum: Programming
- Topic: Kempston support
- Replies: 16
- Views: 435
Re: Kempston support
Easiest way to implement is:
then check which bit is set in a
fire is bit 4
up is bit 3
down is bit 2
left is bit 1
right is bit 0
Some joysticks can have a second and even third fire button but they are rare.
TomD
Code: Select all
ld bc,0x001f
in a,(c)
fire is bit 4
up is bit 3
down is bit 2
left is bit 1
right is bit 0
Code: Select all
bit 4,a
jr nz,_thefireroutine
TomD
- Fri Apr 05, 2024 10:26 pm
- Forum: Programming
- Topic: Game of Life sizecoding contest
- Replies: 36
- Views: 2502
Re: Game of Life sizecoding contest
WE HAVE A WINNER!!!!! This is a short announcement first. I am working on a full reply but..... The response was low..... 2 entries in the contest. TOM DALBY is the winner with a version in 166 bytes Peter Featherstone is second with a version in 333 bytes , so double the size. Tom's version comes ...
- Thu Apr 04, 2024 2:01 pm
- Forum: Showcase your work!
- Topic: WiP Raspberry Pico Microdrive Hardware Emulator
- Replies: 86
- Views: 4808
Re: WiP Raspberry Pico Microdrive Hardware Emulator
Got a few requests for a larger OLED as the normal 0.96" is too small to read for some. Good news is the much larger SSD1309s work fine, the 4 pin I2C versions, tested with 1.54" and the even larger 2.42". 1.54" shown in case below. I'm popping a few on eBay later if you are inte...
- Wed Feb 28, 2024 10:30 am
- Forum: Emulators
- Topic: Snapshots in Fuse MacOS
- Replies: 8
- Views: 576
Re: Snapshots in Fuse MacOS
Sadly, these weren’t the solutions. Turns out that .szx files are default. As are the joystick settings for snapshots. I’ll keep fiddling with it, but in case anyone else has some suggestions, I’m all ears. I believe this was fixed in the new v1.6.0 version as it has this in the release note Fix ac...
- Tue Feb 27, 2024 10:40 am
- Forum: Programming
- Topic: Bank 7 corruption while loading in Plus2A mode
- Replies: 9
- Views: 555
Re: Bank 7 corruption while loading in Plus2A mode
Yes the best way is to force 48k ROM with paging enabled, I've also found that writing a custom loader helps. You can still use the ROM routines so it works with the SD Card devices but it does help prevent these issues. For more info take a look at a utility I created which does this (https://tomda...
- Mon Feb 26, 2024 3:59 pm
- Forum: Sales/Commercial
- Topic: For Sale: ZX PicoMD Microdrive Hardware Emulator
- Replies: 1
- Views: 479
Re: For Sale: ZX PicoMD Microdrive Hardware Emulator
Sold elsewhere
- Fri Feb 23, 2024 9:01 pm
- Forum: Showcase your work!
- Topic: Replacement Case for Interface 1
- Replies: 5
- Views: 622
- Thu Feb 22, 2024 4:44 pm
- Forum: Showcase your work!
- Topic: Replacement Case for Interface 1
- Replies: 5
- Views: 622
Re: Replacement Case for Interface 1
That's a really nice piece of work, Tom, great job. I was thinking about making something similar to house my recreated ZX Spectrum Expansion System project, but there was a problem I couldn't see an easy answer to: the PCB for a project which is housed in such a case obviously needs an edge connec...
- Wed Feb 21, 2024 9:53 pm
- Forum: Showcase your work!
- Topic: Replacement Case for Interface 1
- Replies: 5
- Views: 622
Replacement Case for Interface 1
I've made a replacement case for the Interface 1 for a project. Fits the PCB fine with all holes etc... in the same place.
https://makerworld.com/en/models/197062 ... eId-217607
TomD
https://makerworld.com/en/models/197062 ... eId-217607
TomD
- Wed Feb 21, 2024 9:50 pm
- Forum: Sales/Commercial
- Topic: For Sale: ZX PicoMD Microdrive Hardware Emulator
- Replies: 1
- Views: 479
For Sale: ZX PicoMD Microdrive Hardware Emulator
For Sale ZXPicoMD Microdrive hardware emulator. Fully made up & tested including Pico flashed with latest v1.6 firmware and 3D printed case (see photo) which includes OLED screen & rubber feet which raise the case to the correct level if you want to attach a real h/w Microdrive. £50 inc. p&a...
- Tue Feb 06, 2024 2:01 pm
- Forum: Programming
- Topic: A library of tap2sna.py recipes
- Replies: 87
- Views: 3401
Re: A library of tap2sna.py recipes
I'll double check it today, but as far as I remember both snapshots were working just fine on grey +2 with DivMMC Future. Not sure if it's relevant, but those 128k snapshots definitely work fine on Next and Sifiz-512. Neither one has "real" DivMMC, though. Looks like we need someone with ...
- Tue Feb 06, 2024 9:21 am
- Forum: Programming
- Topic: A library of tap2sna.py recipes
- Replies: 87
- Views: 3401
Re: A library of tap2sna.py recipes
Fairlight 1 and 2 (128k versions) load and run on emulators but not on real hardware. Fairlight 1 just corrupts the screen and restarts the AY tune. Fairlight 2 doesn’t respond to a keypress after loading, so the game cannot begin. The 48k versions seem to load okay. I've just tested both (created ...
- Mon Jan 15, 2024 11:13 pm
- Forum: Design/Ideas
- Topic: New Case & KeyCaps for Mechanical Keyboard
- Replies: 4
- Views: 969
Re: New Case & KeyCaps for Mechanical Keyboard
I've updated my replacement case model introducing a curved edge as I found the edges a little sharp for prolonged use. I've also added some extra supports for the keyboard to stop it flexing and tweaked the colours (prefer the red logo). https://scontent.flba3-2.fna.fbcdn.net/v/t39.30808-6/41457030...