Spectrum Computing

It hurts my brain trying to work out whether to use F & 01 = 1 or F & 01 = 0 to check the different NZ, Z, NC, C combinations but the principle is sound :) It's easy. Mask is a 2^position of needed flag in register F : 76543210 SZ-H-PNC, NC is for CF=0, Mask for CF is 2^0 = 1, Value=0; C is...

You surely can't do it in Spectaculator. I can't say about ZXSpin, I don't know how breakpoints works in it. You can do it in UnrealSpeccy with conditional breakpoint setted with expression (pc==address) && (f&1==0) (the emulator has brief help documentation). Also you can do it in EmuZW...

I'm far from NedoOS, I know that this system is only for advanced russian clones compatible with ATM-Turbo 2 (ZX-Evo(baseconf), Pentagon 2.666, ATM3,...). Maybe you'll find something there: Overview (seems like you already found this): https://habr.com/ru/post/521012/ google translation: https://tra...

Russian Spectrum memes from https://vk.com/zxmemes https://sun9-59.userapi.com/impg/TkGjrfb5lfVIYe53TYdjR2csGouhPn4BtHHwvQ/tfqcO8u-XnY.jpg?size=1165x844&quality=96&proxy=1&sign=b8d4410aa7a99723a8c5605528032541 "Spectrum fans earlier: wrote assembler code on a paper and translated it...

Thanks again, [mention]Luzie[/mention]. What to say, "live and learn"

Here: http://retroasylum.com/bomb-munchies-on-the-zx-spectrum/ it´s listed as 55 decimal. Thanks, [mention]Luzie[/mention]. From there at the end of the text: "* Kempston IN55 is a custom made interface." I´ve also found on FB that SpecNext supports this "Kempston 2": Phoebus Do...

Thank you @Weiv, All changed. I appreciate the corrections and checking. The mention system uses Javascript. Maybe your browser is blocking it? I checked in Chrome and Firefox desktop versions. Thanks. No, Javascript is on, it change @nickname to [mentiоn]nickname[/mentiоn] in the message text, but...

Hi @Weiv, Firstly, welcome to the forums. Thanks for joining. Thanks but I'm here since 2018, rather "welcome back". Sorry, about the wrong name against your emulator. Please could you provide your name and I will make the changes. Is everything else correct against the entry for Spectram...

Where did you find this information? All I have found is that port FF3B returns the last colour written to the palette. I guessed from this: "Reading from port FF3B returns the last data byte written to the currently selected register. This can be used to read back the current palette or deter...

Also, Peter, I'm not Cesar Nicolas-Gonzalez, as it is stated in your Spectrum Emulator Features Spreadsheet for the author of Spectramine.
I wonder why it is stated so?

(Also, Peter, how to appeal by nickname? If I put @ before nickname, it is still black in a message.)

Hi Peter, mine is Spectramine.

About KeyJoyTest v.003.025 - as I know there is no such thing like "In 55 Kempston Joystick" (unless 55 is a hexadecimal number) because all Kempston interface issues have bit 5=0 in the Kempston joystick port address, but 55 is #37=%00110111 with bit 5=1.

Thanks for the topic. I also have found and fixed a bug in my emulator related to ULAplus. The bug is incorrect realization of port #FF3B reading (due to fuzzy specification of ULAplus) - seems like it returns either color of the last color register or last ULAplus mode, depending on the last value ...

Woodster wrote: ↑Sun Feb 09, 2020 1:16 pm

Weiv wrote: ↑Sat Feb 08, 2020 10:01 pm Hello Mark. Seems like the emulator or its libraries are compiled with dependences, because it needs a lot of absent libraries.

Whoops, is it better now? Same link in original post.

Yes, it's fine now. Thanks!

Hello Mark. Seems like the emulator or its libraries are compiled with dependences, because it needs a lot of absent libraries.

Can I clarify that the game is called "Snake" (not "Python")? The original game from Firestarter is called "Snake", but I called my editions of the game as "Python" (even as Rainbow Pythons :) ), because 1) game mechanics is different from Firestarter's origi...

Very last versions: http://zx-pk.ru/attachment.php?attachme ... 1523991090

Updated versions of Pythons: http://zx-pk.ru/attachment.php?attachm ... 1523918827

I corrected 3 little bugs, so control is even more responsive now : http://zx-pk.ru/attachment.php?attachme ... 1523918827

No, I don't have a real Spectrum (well, I have a clone, Orel BK-08, but as a nostalgy item, even without a power supply).

Thanks, it's interesting. I'll try to use it.

Thanks for the info, we have missed the current ZXDB update (which will hopefully appear on this site tonight), but we can make these changes for the next update in about a week. Nice screenshots but if you want to use them as part of ZXDB could you make them available as .scr please? (it is best i...

Advertised 93 bytes length version of Snake: http://zx-pk.ru/threads/29039-snake-v-93-bajt.html?p=959198&viewfull=1#post959198 (At least I hope for it. I got the version from start post of the thread, and 95 bytes length was in the thread caption initially). And even 84 bytes edition by krt17: h...

Great. How about the snow effect? I don’t think I’ve seen an emulator that mimics it exactly yet. Not that it’s the most useful feature, but it would be nice to have it for completeness. Hmmm, I emulated already the snow effect in last version of Spectramine. I think it's the most exact emulation o...