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Detecting +3 / +2AWhat's a simple but reliable way to detect if code is running on a +2A/+3? My first though was to try switching to ROM2 and then checking for the …
... working, tweaked the timing for 128K/+2, then found the +2A/+3 ... memory on a 48K and 128K both restrict a memory read ... / write to 2 T-states out of every ... work) then a 48K or 128K wouldn't have a problem ... -
Detecting +3 / +2AWhat's a simple but reliable way to detect if code is running on a +2A/+3? My first though was to try switching to ROM2 and then checking for the …
... speeds of the 48K and 128K, and something with no contention ... tell if it's a 128K/+2 or +2A/+3.
No-tearing (“vsync”) Full Screen FadeSeeing as most screen fades exhibit visible tearing, I wrote my own routine which does away with that problem. Simple, effective, short, and fully re…
Well, yes, that’s the gist of it. Keep in mind that you’ll need three different padding loops: one for the 48K machine, one of the 128K/+2, and one for the +2A/+3.Witchcraft: Nirvana, Bifröst and such[url="http://www.rgcd.co.uk/2011/10/buzzsaw-zx-spectrum.html"]"When considering this next to nearly every other ZX Spectrum game though, Buzzsaw is l…
... hardware models, yes. So a 128K running in 48K mode still ... has 128K timing as it's still ... . A real 48K is slowest, 128K/+2 machines run a bit faster ...Redesigning the ZX Spectrum 128k - A lifelong dreamHello, I am myPinballs (Jim) and i run a small business here in the uk making replacement 8-bit hardware pcbs for arcade pinball games as well as…
... out if there is a 128k/+2 Rom that can utilise it ... designs based around the original 128k design unless i've missed ...Got Myself a 128K “Toast Rack”! (Plus a simple audio fix guide.)I got myself a 128K Spectrum off of eBay the other day. It’s in pretty good nick, but the membrane went the way of the dodo sometime during shipping …
... , left only with a grey +2[/quote]
Well, for all ... would have gone for a +2, but since I already had ... . The RGB cable for the 128K/+2 is a little more fiddly ...Nasty vertical pattern on a 128K Toast Rack via RGBI managed to fix the busted membrane on my [url="https://www.worldofspectrum.org/forums/discussion/55755/got-myself-a-128k-toast-rack-plus-a-simple-a…
... but isn't the original 128k still a Sinclair product? I ... machines. The +2 is almost identical to the 128K, the biggest difference ... me check on my grey +2 board issue 1.[/quote]
128K/+2 machine, I could swap the ...Got Myself a 128K “Toast Rack”! (Plus a simple audio fix guide.)I got myself a 128K Spectrum off of eBay the other day. It’s in pretty good nick, but the membrane went the way of the dodo sometime during shipping …
... RGB cable for the 128K/+2 is a little ... In fact, the +2 already has the necessary ... board inside.
The 128K+ does not, hence ... 2's were using the same type of cable for the 128K ... /> "[i]...since the Spectrum +2 already includes components to combine ...Any reason to prefer the 48k version of a game over 128k?Title says all... are there any games for which it makes sense to play the 48k version if there is also a 128k version? To my understanding, the 128k…
... between the three models: 48K, 128K/+2, and +2A/+3. If the ...ATARI 2600 PORTSThere's a few Atrai 2600 games I've loved and would like to see ported to Speccy - anyone fancy? I know 'Yars Revenge' got a great reboot... The gu…
I posted a WIP version of the Speccy version in another thread yesterday. 128K/+2/A/+3 only.
[url="https://dl.dropbox.com/s/dj2tpcb1oz9fgog/Tumult-AlvinDemo.tap?dl=0"]Tumult.tap[/url].The I register pointing to $40–$7f causes ULA snow and a crash. Or does it?I have heard it from numerous sources, including a few members of this forum, that 128K/+2 machines crash if the I register points to a range of $40–…
... he says crashes a real 128k/+2 all the time:
128k/+2 but crashes on a +3 ... between the +3 and regular 128k. So it also needs to ...The I register pointing to $40–$7f causes ULA snow and a crash. Or does it?I have heard it from numerous sources, including a few members of this forum, that 128K/+2 machines crash if the I register points to a range of $40–…
... he says crashes a real 128k/+2 all the time.[/quote]
128K/+2. See, on these machines, the ... $40–7f range, on a 128K/+2 there’s another factor at ... set to $f7, because the 128K machine will switch between banks ...The I register pointing to $40–$7f causes ULA snow and a crash. Or does it?I have heard it from numerous sources, including a few members of this forum, that 128K/+2 machines crash if the I register points to a range of $40–…
... the printer buffer), but on 128K machines, that’s exactly where ... , it differs slightly between a 128K/+2 and a +2A/+3. Sometimes ...The I register pointing to $40–$7f causes ULA snow and a crash. Or does it?I have heard it from numerous sources, including a few members of this forum, that 128K/+2 machines crash if the I register points to a range of $40–…
... he says crashes a real 128k/+2 all the time.[/quote]
The I register pointing to $40–$7f causes ULA snow and a crash. Or does it?I have heard it from numerous sources, including a few members of this forum, that 128K/+2 machines crash if the I register points to a range of $40–…
... he says crashes a real 128k/+2 all the time.[/quote]
ld i,a
im 2
ei
ret
BREAK key on 128k SpectrumWhat happens when BREAK is pressed on a 128k Spectrum? Why is it different from what happens on a 48k Spectrum. Is there a way to disable it or to …
... Bunny, I have attempted the 128k/+2 method, like the last code ... to work on a Grey +2 though (gives a yellow border ...Camelot Warriors (Ariolasoft) Now FixedNot exactly sure where to post this, but, hey, it’s a game, right? ;) @Alessandro Grussu mentioned a few days ago that the Ariolasoft re-release o…
... –86 game.
2. On a 128K/+2, in addition to #1 ... graphics corruption when launched in 128K mode. Not strictly speaking a ... some memory/registers.
#2 affects quite a few games ...Pssst and Sinclair joystickIs there a version of Pssst which allows to use Sinclair joystick (Interface 2)? Or is it possible to add Sinclair joystick control to this game?
Yes, it’s a [i]Pssst[/i]’s “fault.” It was written way before the 128K/+2 Spectrums were introduced. I’ll try to fix that as well. Meanwhile, simply load the game in 48 BASIC mode; it won’t exhibit these problems.Final Fight for 48K spectrum?The original release by US Gold and the Re-release by Erbe state that it's only 128K, but the 2nd re-release by Kixx mentions Spectrum 48K. Was th…
... Gold release says SPECTRUM 48 / 128K, +2 CASSETTE on the sticker on ... tape has SPECTRUM 128 K, +2, +3 CASSETTE printed on it ... the fact that it requires 128k to work past the map ...ZX Spectrum VegaI was looking at getting ZX Spectrum hardware to test my code and found a [url="https://www.amazon.com/Sinclair-Spectrum-Vega-Console-Retro-Computers…
... real Spectrum models—the 48K, 128K/+2, and +2A/+3. Sorry, there ...Introduce yourself[SIZE=3][FONT=Comic Sans MS]This is the thread to stop by & introduce yourself.[/FONT][/SIZE]
... several ZX Spectrum types (16K, 128K +2) and I want to catch ...divIDE interface not workingA while ago I bought a divIDE interface for my two spectrums (one is a 48k rubber keyboard one, the other is a 48k Spectrum plus). Sadly I never actu…
... had this problem with a 128K +2 and swapping the Z80 with ...Which to buy? +2/+2a/+3?Sorry - I did a quick bit of lunchtime googling, it sounds like the grey +2 is the best machine, as it has the board without the reduced chipset. I …
... />
1. 48/16K
2. 128K/+2
3. +2A(B)/+3 ... minimum, a 48K, a 128K (toastrack) or a +2 (grey) and a ...GLUF[url="http://www.retrosouls.net/"]retrosouls.net/[/url] https://youtu.be/P4F4XVbnNDY
... +3 but not on the 128k or +2 (grey)[/quote]
it ... works on any 128k model, where did ... the AUTO PLAY/STOP in 128K/+2 rom you can see the ...GLUF[url="http://www.retrosouls.net/"]retrosouls.net/[/url] https://youtu.be/P4F4XVbnNDY
... +3 but not on the 128k or +2 (grey)[/quote]
it ... works on any 128k model, where did ... the AUTO PLAY/STOP in 128K/+2 rom you can see the ...No video on Spectrum +2BI have a Spectrum +2B that I bought real cheap without any cables. I made a power adapter for it using an old ATX PSU I had laying around, it's curre…
... +2A(B); only on the 128K/+2 machines. I hope you didn ...A Yankee in IraqI'm testing the game on the zx next and it currently hangs right after the game starts no matter what timing regimen and contention pattern is chosen…
... game will run.
2. You’re right, the game ...
ld hl,v_sync+2
ld (hl),$2b ;code ... HL [6] for the 48K/128K/+2
ld a,e ;[4 ...Which emulators can change machine type / hardware without reset?Which emulators can change machine type / hardware without machine-reset? I think WinZ80 v4 by Gerton Lunter can do e.g. change running emulation …
... being moved (think 48k to 128k/+2 where the pages paged in ...
