Search found 748 matches
- Tue May 07, 2024 5:04 pm
- Forum: Programming
- Topic: Bank switching issue
- Replies: 38
- Views: 1434
Re: Bank switching issue
was presumably intended for CP/M use. I concur. The banking arrangement has a close correspondence with the suggested internal architecture of the banked version of CP/M 3. CP/M 3 was available in two versions, banked and non-banked, and in the banked version they put some contraints on which parts...
- Sun May 05, 2024 12:58 am
- Forum: ZX Spectrum Next
- Topic: Head Over Heels (Next)
- Replies: 14
- Views: 1245
Re: Head Over Heels (Next)
There was a Facebook post 24 hours ago saying that they’d added more physical stock to the website, which has already sold out. Before that I saw bunch of posts by people sharing pictures of unwrapping their physical editions. If you’re not following Rusty Pixels on social media to get announcement ...
- Sat May 04, 2024 7:03 pm
- Forum: ZX Spectrum Next
- Topic: Next always defaults to YM
- Replies: 2
- Views: 427
Re: Next always defaults to YM
The PSG Mode setting is in the lower half of the boot menu options. The upper half is marked Options (always used) . The lower half is marked Options (not used by NextZXOS) . So this setting is for non-Next boot personalities, and isn't used by NextZXOS. The reason for this is that NextZXOS defaults...
- Sat May 04, 2024 6:45 pm
- Forum: ZX Spectrum Next
- Topic: Checking board type (KS1/KS2) from my code?
- Replies: 2
- Views: 90
Re: Checking board type (KS1/KS2) from my code?
Nextreg 15 : 0x0F (15) => Board ID (R) bits 7:4 = Reserved, 0 bits 3:0 = Board ID 0000 = ZXN Issue 2, XC6SLX16-2FTG256, 128Mbit W25Q128JV, 24bit spi, 64K*8 core size 0001 = ZXN Issue 3, XC6SLX16-2FTG256, 128Mbit W25Q128JV, 24bit spi, 64K*8 core size 0010 = ZXN Issue 4, XC7A15T-1CSG324, 256Mbit MX25...
- Fri Apr 05, 2024 6:36 pm
- Forum: Games/Software
- Topic: C.S.S.C.G.C 2024 is/will be/has open/ing/ed
- Replies: 103
- Views: 5449
Re: C.S.S.C.G.C 2024 is/will be/has open/ing/ed
Anyway - for anyone wanting to write crap Next games, as I am, @Seven.FFF has posted a fully-working MMC image with NextOS 2.08, which I've just tested with CSpect 2.19.4.4 and it has no problems running what I've just written on a real KS2 Next, but was failing horribly with 2.06H still installed....
- Fri Apr 05, 2024 6:20 pm
- Forum: Hardware
- Topic: ZX-VGA-JOY and M30 Bluetooth controller
- Replies: 4
- Views: 213
Re: ZX-VGA-JOY and M30 Bluetooth controller
I know Ben at ByteDelight had some concerns that Megadrive controllers were killing his divMMCs, but I don't know if anything was ever proved. (I know this topic is not about the Next, but after mentioning safety concerns, I can reassure people that the Next IS designed to work safely with Megadrive...
- Thu Apr 04, 2024 10:22 pm
- Forum: ZX Spectrum Next
- Topic: GetIt 1.3 [not working]
- Replies: 10
- Views: 460
Re: GetIt 1.3 [not working]
Thanks, that explains everything. I am wondering if it still makes sense to upgrade firmware in my case, because what I have seems to be really old one. What would be the recommended ESP firmware version for those who are willing to take the risk? I think it should be possible to open the case, rem...
- Thu Apr 04, 2024 10:18 pm
- Forum: Programming
- Topic: Bank switching issue
- Replies: 38
- Views: 1434
- Thu Apr 04, 2024 3:05 pm
- Forum: ZX Spectrum Next
- Topic: GetIt 1.3 [not working]
- Replies: 10
- Views: 460
Re: GetIt 1.3 [not working]
I was just about to ask if ESP reset helps. Frankly, I did not expect that alone to help. Because, there is a thing that makes it interesting. And the thing is the fact that .http alone works. AFAIK, zxdb-dl just uses it internally (am I wrong?), and thus either both should be broken or both should...
- Thu Apr 04, 2024 2:02 pm
- Forum: Programming
- Topic: Bank switching issue
- Replies: 38
- Views: 1434
Re: Bank switching issue
I can't say I've found a use for this so really only use banks 0,1,3,4,6 and 7 which are always appear at $c000 to $ffff One good use is where you have a double buffer using the shadow screen. You display one screen, and draw your updates to the other. When you finish updating, you display the othe...
- Wed Apr 03, 2024 12:42 am
- Forum: ZX Spectrum Next
- Topic: GetIt 1.3 [not working]
- Replies: 10
- Views: 460
Re: GetIt 1.3 [not working]
I've run into a problem with GetIt (a few other users have mentioned same in the comments); it seems to hang after the splash screen with the message "checking wifi…" GetIT is a fairly new application and it can be a bit flaky sometimes. In particular it can leave the ESP WiFi module wedg...
- Tue Apr 02, 2024 3:02 am
- Forum: ZX Spectrum Next
- Topic: Can Currah Microspeech be used with the Next?
- Replies: 7
- Views: 1266
Re: Can Currah Microspeech be used with the Next?
PC desk speakers should be fine, and you should be able to get an extension cable from Amazon for a couple of quid. You probably want something with a stereo socket at the speaker end and a mono plug at the uSpeech end.
- Thu Mar 28, 2024 9:55 pm
- Forum: ZX Spectrum Next
- Topic: Can Currah Microspeech be used with the Next?
- Replies: 7
- Views: 1266
Re: Can Currah Microspeech be used with the Next?
It’s been a couple of days since I watched it, but didn’t he say the OUTs were the same for the uSpeech and the IF1? Basically the aim is to disable any internal hardware that uses the same port decoding, or has an its own ROM if your device also has its own ROM. This conflicting is a basic thing th...
- Tue Mar 26, 2024 7:00 pm
- Forum: ZX Spectrum Next
- Topic: Can Currah Microspeech be used with the Next?
- Replies: 7
- Views: 1266
Re: Can Currah Microspeech be used with the Next?
Once modified (or not), here's a Next tutorial video from Tim Gilberts (of The Quill and PAW fame) including the Next OUT commands you need to type to enable the expansion bus and disable the internal hardware that clashes with the uSpeech:
- Tue Mar 26, 2024 6:51 pm
- Forum: ZX Spectrum Next
- Topic: Can Currah Microspeech be used with the Next?
- Replies: 7
- Views: 1266
Re: Can Currah Microspeech be used with the Next?
It is often repeated that Currah uSpeech isn't compatible with any Spectrums that don't have RF output. Usually people mod them to output audio directly. Here's one such mod: https://www.youtube.com/watch?v=PdAvMTof0jo It is, apparently, possible to get it working without a mod. The audio is availab...
- Sun Mar 24, 2024 11:18 am
- Forum: Games/Software
- Topic: Chuckie Egg Kempston support
- Replies: 12
- Views: 2261
Re: Chuckie Egg Kempston support
I hope it is per game It’s per game, as are all the game load options. That’s why the options exist in the first case,?to allow you to tweak the hardware for the way each game needs - which is often at odds with other games. One game only works on 128K, another game only works on 48K or with USR0 m...
- Sat Mar 23, 2024 7:50 pm
- Forum: Games/Software
- Topic: Chuckie Egg Kempston support
- Replies: 12
- Views: 2261
Re: Chuckie Egg Kempston support
As a proud owner of a ks2 zx next Sounds like you may not be aware you can map keys to your joysticks in all TAP/TZX/Z80/SNA games on the Next. This works similarly to the rewirable ComCon joystick interface you may remember from back in the day. After you’ve pressed enter in the NedtZXOS browser, ...
- Sat Mar 23, 2024 2:24 pm
- Forum: Other Retro Stuff
- Topic: Realms of Antiquity TI-99/4a
- Replies: 7
- Views: 699
Re: Realms of Antiquity TI-99/4a
If it’s licensed under an alternate licence that would indeed be tickety boo. But are there any licence details included in the distribution at all? I’m asking you because I don’t really want to spend $10 to find out.
- Sat Mar 23, 2024 12:06 pm
- Forum: Other Retro Stuff
- Topic: Realms of Antiquity TI-99/4a
- Replies: 7
- Views: 699
Re: Realms of Antiquity TI-99/4a
Is he including the BSD-3 licence for that emulator he’s redistributing as part of what he’s selling?
- Mon Mar 18, 2024 8:47 pm
- Forum: ZX Spectrum Next
- Topic: Atari Driving Controller Games
- Replies: 7
- Views: 454
Re: Atari Driving Controller Games
Surely you need to be reading that at a hell of a rate to detect the switching, to the detriment of the game? It presents constant bit values to, say, IN 31 with a kempston interface, so you only need to read once per frame, just like you would with a joystick. The values only change when the user ...
- Mon Mar 18, 2024 12:36 pm
- Forum: ZX Spectrum Next
- Topic: Atari Driving Controller Games
- Replies: 7
- Views: 454
Re: Atari Driving Controller Games
Now if some boffin could remake Deathchase for the Next & make it compatible with the Driving Controller, that'd be incredible! Atari driving controller will generally work anywhere Spectrum joysticks work, and with any kempston/sinclair/cursor/protek protocol. They only use left/right/gnd pins...
- Sun Mar 17, 2024 7:08 pm
- Forum: Programming
- Topic: what would this be equivilent to in assembler?
- Replies: 33
- Views: 1072
Re: what would this be equivilent to in assembler?
You can detect multiple keys, but you can’t detect that other keys weren’t pressed, because of the way this kind of matrix shorts out a row to a column. And the more extra keys are pressed, the more phantom keypresses register. With carefully crafted fixed defined keys you can get away with a certai...
- Sun Mar 17, 2024 6:54 pm
- Forum: Programming
- Topic: what would this be equivilent to in assembler?
- Replies: 33
- Views: 1072
Re: what would this be equivilent to in assembler?
I'm definitely able to detect at least 4 keys at once (it also depends on the PC keyboard when emulating though I guess, some keyboards have limits to which keys can be pressed simultaneously). Using emulators to derive the hardware characteristics of real spectrums is a bit... counterproductive. I...
- Sun Mar 17, 2024 6:42 pm
- Forum: Programming
- Topic: what would this be equivilent to in assembler?
- Replies: 33
- Views: 1072
Re: what would this be equivilent to in assembler?
The ROM routines (that set LASTK) are great for quick routines when you're typing words and sentences on one key at a time. In most games you're moving up/down and left/right at the same time, or left/right and jump and the same time, or moving and firing at the same time, or rotating and thrusting ...
- Sun Mar 17, 2024 5:45 pm
- Forum: Programming
- Topic: what would this be equivilent to in assembler?
- Replies: 33
- Views: 1072
Re: what would this be equivilent to in assembler?
cool, got that working. so how do i tell the program not to not let 'a' register go passed say 31? If you wanted to wrap X around so it goes 0,1,..,30,31,0,1 you can use a neat trick with and 31 , because 32 is a power of two: Key.SpSsMNB equ $7ffe ; Half row for Space, Sybmbol Shift, M, N, and B X...