Search found 2641 matches
- Mon Mar 27, 2023 9:56 pm
- Forum: Hardware
- Topic: The Joys of a reborn Speccy
- Replies: 8
- Views: 302
Re: The Joys of a reborn Speccy
Have you considered using an old CRT TV instead? Compatibility is virtually guaranteed, and the cables are easy to source.
- Mon Mar 27, 2023 9:30 pm
- Forum: Hardware
- Topic: 128k 6U sound issue
- Replies: 12
- Views: 283
Re: 128k 6U sound issue
What if you disconnect R139, R140, and R141 from the AY’s outputs and retest the oscillograms, just to eliminate and funny business in the analog domain? Any change?
- Mon Mar 27, 2023 5:41 pm
- Forum: Hardware
- Topic: 128k 6U sound issue
- Replies: 12
- Views: 283
Re: 128k 6U sound issue
First things first: have you checked the power rails on the AY?
- Mon Mar 27, 2023 10:40 am
- Forum: Programming
- Topic: Any Key in assembly
- Replies: 35
- Views: 1027
Re: Any Key in assembly
Yup, what Andy said. If you’re just experimenting/learning, then there’s no way to avoid scanning each of the eight half-rows to properly poll the entire keyboard, so you’ll need to read from each port respectively and address it explicitly . But practically, unless you’re planning to release your g...
- Mon Mar 27, 2023 12:55 am
- Forum: Programming
- Topic: Any Key in assembly
- Replies: 35
- Views: 1027
Re: Any Key in assembly
Right.. That works because it testes all rows, and thus also explicitly row $ef. I could do that. Or something like? waitLp: ld bc,$00fe call readKeyRow ret nz ld b,$ef call readKeyRow ret nz jr waitLp readKeyRow: in a,($fe) cpl and $1f ret Once again, a port address is a 16-bit (two-byte) value. A...
- Sun Mar 26, 2023 10:06 pm
- Forum: Programming
- Topic: Any Key in assembly
- Replies: 35
- Views: 1027
- Sun Mar 26, 2023 10:04 pm
- Forum: Programming
- Topic: Any Key in assembly
- Replies: 35
- Views: 1027
Re: Any Key in assembly
Ooh, interesting observation. And, if correct, one I bet emulators haven't picked up on Yeah, but now Robin’s suggestion made me second-guess myself . . . Too much uncertainty, what with all the remote testing and pinout confusion. Besides, it’s cheaper and more reliable to use the ROM call to test...
- Sun Mar 26, 2023 7:38 pm
- Forum: Programming
- Topic: Any Key in assembly
- Replies: 35
- Views: 1027
- Sun Mar 26, 2023 6:53 pm
- Forum: Programming
- Topic: Any Key in assembly
- Replies: 35
- Views: 1027
Re: Any Key in assembly
. . . on my +2B with joystick connected on SJS port 1, the directions or fire-button of the joystick skips out of the routine, as one would expect. On 2 gray +2 Speccies of friends of mine, they do not. Probably, because the +2B has the joystick ports connected directly to the gate array, and the g...
- Sun Mar 26, 2023 4:21 pm
- Forum: Programming
- Topic: Any Key in assembly
- Replies: 35
- Views: 1027
- Sun Mar 26, 2023 3:22 pm
- Forum: Programming
- Topic: Any Key in assembly
- Replies: 35
- Views: 1027
Re: Any Key in assembly
Well, I didn't realise that yet with the in a,(n) method but it does makes sense, as for specific keys(/rows) I usually use something like: ld bc,$effe in a,(c) ; translates actually as in a,(bc) cpl ; invert all bits in a and %00011111 ; fire or directional pressed? jr z,joyAction Right. This is a...
- Sat Mar 25, 2023 11:05 pm
- Forum: Programming
- Topic: Any Key in assembly
- Replies: 35
- Views: 1027
Re: Any Key in assembly
What could be the cause of this? Can’t think of anything off the top of my head—especially, without looking at the actual code—but it’s easier (and, often, faster) to check joystick states bit by bit. And, with a bit of clever bit checking, you can implement checking for both Sinclair joysticks in ...
- Fri Mar 24, 2023 1:04 pm
- Forum: Sinclair Miscellaneous
- Topic: Why isn't it Ear and Mouth?
- Replies: 24
- Views: 520
Re: Why isn't it Ear and Mouth?
This confuses the hell out of me. I mean a mic is an ear! The names (abbreviations, really) are pretty much self-explanatory. What’s really confusing is the way the Spectrum had its input and output labeled. I guess Sinclair’s reasoning was that the EAR jack on the Spectrum should connect to the EA...
- Tue Mar 21, 2023 10:25 pm
- Forum: Announcements
- Topic: Spectrum Analyser release thread
- Replies: 15
- Views: 1261
Re: Spectrum Analyser release thread
Was one of the first things I tried. Still no dice, unfortunately.dpt wrote: ↑Tue Mar 21, 2023 4:23 pm Might be worth giving this a go:
https://stackoverflow.com/questions/545 ... eads-found
- Sun Mar 19, 2023 7:03 pm
- Forum: Brand new software!
- Topic: An Awesome Demo (2023)
- Replies: 10
- Views: 858
Re: An Awesome Demo (2023)
It’s in the video’s description: clickity–click.
- Sun Mar 19, 2023 5:43 pm
- Forum: Brand new software!
- Topic: An Awesome Demo (2023)
- Replies: 10
- Views: 858
An Awesome Demo (2023)
(Sorry, I forget where we post demos. Feel free to move this topic.)
I’m normally not a big fan of demos, but this one sure did catch my eye. Looks damn impressive, if you ask me!
I’m normally not a big fan of demos, but this one sure did catch my eye. Looks damn impressive, if you ask me!
- Sun Mar 19, 2023 5:37 pm
- Forum: Games/Software
- Topic: Guess the screen$
- Replies: 7955
- Views: 251927
Re: Guess the screen$
Right you are! My apologies, I must have misread it.
- Sun Mar 19, 2023 3:17 pm
- Forum: Games/Software
- Topic: Guess the screen$
- Replies: 7955
- Views: 251927
Re: Guess the screen$
Well, let’s zoom out a bit.
- Sun Mar 19, 2023 10:39 am
- Forum: Games/Software
- Topic: Guess the screen$
- Replies: 7955
- Views: 251927
- Sun Mar 19, 2023 10:00 am
- Forum: Games/Software
- Topic: Guess the screen$
- Replies: 7955
- Views: 251927
Re: Guess the screen$
Keep guessing.
- Sat Mar 18, 2023 7:04 pm
- Forum: Games/Software
- Topic: Guess the screen$
- Replies: 7955
- Views: 251927
Re: Guess the screen$
Okay, I’ll start you off easy.
- Sat Mar 18, 2023 2:00 pm
- Forum: Games/Software
- Topic: Guess the screen$
- Replies: 7955
- Views: 251927
Re: Guess the screen$
Zombi.
- Fri Mar 17, 2023 6:41 pm
- Forum: Announcements
- Topic: Spectrum Analyser release thread
- Replies: 15
- Views: 1261
Re: Spectrum Analyser release thread
Hmm. I keep getting this on macOS 10.15: CMake Error at /usr/local/Cellar/cmake/3.12.3/share/cmake/Modules/FindPackageHandleStandardArgs.cmake:137 (message): Could NOT find Threads (missing: Threads_FOUND) Call Stack (most recent call first): /usr/local/Cellar/cmake/3.12.3/share/cmake/Modules/FindPa...
- Thu Mar 16, 2023 7:22 am
- Forum: Music
- Topic: Where did the music from treasure island dizzy come from? Is it a classical piece?
- Replies: 5
- Views: 800
Re: Where did the music from treasure island dizzy come from? Is it a classical piece?
Oh, my god, what have you done? I don’t even need to click the link; a mere mention of that chantey ensures that that earworm will be firmly stuck in my head for the rest of the day (at least). “Earlay in the mornin’ . . .”
- Sun Mar 12, 2023 11:32 am
- Forum: Sinclair Miscellaneous
- Topic: Did you have your own TV/monitor when you got your Speccy?
- Replies: 76
- Views: 1183
Re: Did you have your own TV/monitor when you got your Speccy?
I say television because it was a TV to us, but it were nowt really but a an etch-a-sketch with a power cord rammed in one side and an aerial lead in t'other... You were lucky to have a power cord. We used to have to take turns pedaling the bicycle to power a dynamo! But, you know, we were happy in...