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IF1bis vs SpectranetSince I will shortly have access to both an IF1bis (which I've bought) and a Spectranet (thanks to a loan from cmonkey), I will be in a position to g…
... of the LDI intruction (16 T states per byte),
- but ... the sense that it doesn't need to be known in ... 'Interface 1bis', in many respects, an edge over comparable devices -
IF1bis vs SpectranetSince I will shortly have access to both an IF1bis (which I've bought) and a Spectranet (thanks to a loan from cmonkey), I will be in a position to g…
... the sense that it doesn't need to be known in ... 'Interface 1bis', in many respects, an edge over comparable devices[/QUOTE ... trivial number of T-states.
I don't think Gasman's ... -
is this a forum for new games ideas as in really new gamesWhat I mean is Nebulous was a new game concept, [cylindrical scrolling?] and I am having difficulty coming up with new concepts. Seems my brain just …
... sure it isn't many. Broadly speaking, when writing for an ancient CPU ... Jon Cauldwell, but I don't think either of them has ... ever taken an idea from this forum. However ... -
My first composite mod.Thought it was about time I gave the composite mod a go. I used a youtube video, the bloke in the video took 10 mins, I took about 2 hours :) but it…
... levelled pads this isn't much of an issue, if you ... oxide and you just can't solder it without excessive ... . A gentle rub with an emery board or a bit ... dull and corroded and won't want to solder easily. ... put mine to shame honestly. Every single join was perfect. ... -
Retro Game Comparison Blog.So, here's a shameless plug for my blog, which should interest some of you. Then again, it's not biased towards any particular system, so it might no…
... PS2 isn't modded, and I haven't come across an emulator that I ... with. Do you have any emulator in mind that would play ... I wasn't clear enough - I was talking about an original copy ... -
Retro Game Comparison Blog.So, here's a shameless plug for my blog, which should interest some of you. Then again, it's not biased towards any particular system, so it might no…
... PS2 isn't modded, and I haven't come across an emulator that I ... with. Do you have any emulator in mind that would play ... I wasn't clear enough - I was talking about an original copy ... -
ULA snow effectIt's wintertime, you know. [quote="http://ramsoft.bbk.org.omegahg.com/floatingbus.html"]when the I register falls in the range 0x40-0x7F then the UL…
... emulation was still something of an approximation, as our granularity for ... 1-TState accuracy. I don't know if Woody improved the ... i,a which is 9 T-states? -
Outputting debug trace to RS232 (assembly)Hi Guys, I'm working on a game at the moment (written in assembly) but I am really needing to write out a debug trace of what is going on with the p…
... in fuse so I can't test it.
0x00BC ... /> That code gets run every time there is an rst8. Hook code ... -
Outputting debug trace to RS232 (assembly)Hi Guys, I'm working on a game at the moment (written in assembly) but I am really needing to write out a debug trace of what is going on with the p…
... )
START-3 detects if an Interface channel has been requested ... (it hasn't) and so jumps to START ... ]That code gets run every time there is an rst8. Hook code ... created by SJASM Plus isn't ready to calling ROM routines ... -
A new full-screen bicolor engine called NIRVANA[I]OK, there's something I need to clarify first: Nowadays if you write [B]"multicolor"[/B] everyone assumes it refers to "multicolor 8x1" (an attri…
... T-states. Also it has a "tolerance" of about 35 T-states ... against interrupt delays.
Notice that, when an ... a NOP instruction (4 T-states) for instance, you will ... instructions take more than 20 T-states, thus causing longer interrupt ... -
A new full-screen bicolor engine called NIRVANA[I]OK, there's something I need to clarify first: Nowadays if you write [B]"multicolor"[/B] everyone assumes it refers to "multicolor 8x1" (an attri…
... T-states. Also it has a "tolerance" of about 35 T-states ... against interrupt delays.
Notice that, when an ... a NOP instruction (4 T-states) for instance, you will ... instructions take more than 20 T-states, thus causing longer interrupt ... -
Why are multicolour engines only able to be made now?Now I'm no programmer, but, how come multicolour engines are only being created/designed now? I know there were Rainbow Graphics used in games in the…
... (albeit that you didn't ask Matthew Smith's permission ... but the author (can't remember who he is, but ... not Harry Price) isn't vilified now, as we ... Internet (actually, I don't know how the Internet works ... the same places every time I release an update and there ... -
Elite Kickstarter ProjectAs some of may know Steve Wilcox of Elite is currently close to raising ?60k via Kickstarter to begin manufacturing a USB spectrum keyboard. I have g…
... trying to claim it as an original title from Elite. Which ... journos who'd sooner spend an afternoon writing up fluff than spending ... himself into a corner, isn't he... -
Idea: New interface 1There are a lot of great new interfaces to plug into the back of the spectrum, but things quickly get rather messy! The interface 1 is a very tidy s…
... =Rorschack;754074]
Isn't it? When you say not ... It doesn't load 128K games directly from emulator compatible files ... It is electronically incompatible (doesn't seem to be, I've ...
Full documentation, updated on an almost daily basis, is available ... -
Z80 Asm EditorHi, I think this goes in here but if not then the mods can move it.... :) I have been knocking up a multi-tabbed, customizable docking editor for w…
... /> Highlight an area and it will tell you how many t-states are ... -
Z80 Asm EditorHi, I think this goes in here but if not then the mods can move it.... :) I have been knocking up a multi-tabbed, customizable docking editor for w…
... stuff! I would suggest adding an integrated hex editor.. and a ... /> Highlight an area and it will tell you how many t-states are ... those sound good. Showing the t-states for a block of code ... /> One question: if there's an error during assembly where will ... -
48k AudioI'm at the point in my game where I could use a few beeps and bloops. Ive been looking at loads of different speccy books, but this whole business of…
... . I just don't know the methodology around writing an audio routine.
Help with 1-bit sampled soundHi all, I've been sent over this way from the CPC Wiki forums as you guys may be able to help me more specifically with a programming query. Firstly…
... sampled sound and so don't really know the theory. I ... , and if you have about an equal amount of 0 and ... pass filter (the Spectrum doesn't really have much in the ... some ability to make it generate an analogue wave form.
THE HOBBIT loading screenHello again, thought I'd have a go at an alternative loading screen for The Hobbit. [IMG]https://dl.dropboxusercontent.com/u/61658082/THE%20HOBBIT%…
... . grabbing em wouldn't take long with a walkthru / emulator and AR6 ... :)
if you want them, pm me an ...JP (HL) confusionokay.... JP nn will jump to memory address nn. JP (HL) ,I assumed would read the contents of memory address HL and jump to the location and be a gre…
... a player colliding with an object. With chained conditions ... nnnn pairs takes 17 t-states to run, so ... you've spent nearly 100 t-states.
(I appreciate ... the process takes 42 t-states, performs the same task ... different addresses. And don't forget that any JP ...JP (HL) confusionokay.... JP nn will jump to memory address nn. JP (HL) ,I assumed would read the contents of memory address HL and jump to the location and be a gre…
... , the process takes 42 t-states, performs the same task ... this will execute in 32 T states, approx. 25% faster. ... even executed in 28 T states while directly using LD ... ZX81, and so doesn't directly apply to the ... /> Well this was only an example in which context JP ...Address bus contents (i.e. PC) during execution of HALTI'm wondering if anyone can tell me what's placed on the address bus during execution of HALT, beyond the initial M1 cycle. The Z80 user manual state…
... serif]executing NOP's until an interrupt is received. Each ... FONT] [FONT=sans-serif]four T states. The CPU will sample the ... ][FONT=sans-serif]). When an interrupt exists on either line ... memory read operation (/NMI) or an interrupt acknowledge (/INT).[/FONT]
New bicolour game coming very soon.And they say budget software houses can't afford to advertise :-D [IMG]http://i1142.photobucket.com/albums/n608/daveyboyhughes/elstompo_advertsmall_…
... T-states. Also it has a "tolerance" of about 35 T-states ... against interrupt delays.
Notice that, when an ... a NOP instruction (4 T-states) for instance, you will ... instructions take more than 20 T-states, thus causing longer interrupt ...What is this Nirvana engine?Ive been trying to look for a thread on this but cant seem to locate one. I downloaded a spanish game called El Stompo that uses this engine which ha…
... the actual Speccy computer (not emulator)[/QUOTE]
Yes, it ... /> Developing games for NIRVANA isn't difficult (although creating great games ... the beginning, you can't just take an existing game and make ...Space Harrier new loading screenHi, The original screen: [IMG]https://dl.dropboxusercontent.com/u/2616449/spectrum/SpaceHarrier.png[/IMG] and my new version: [IMG]https://dl.dro…
[QUOTE=zub;763634]Wow, hadn't realised this — it seems Elite ... started selling it in the States! :o
Even the ... think it could have been an awful lot better than it ... the expense of raster time (t-states?) so you have that trade ...+2 Grey Composite question.Hello all, Long time reader first time poster and all that...... Probably a daft question which has been asked hundreds of times, even though I ca…
The Spectum doesn't even generate one correct field so if ... vertical sync pulses it shouldn't display anything! If it accepts ... +3 that is. I don't think I ever tried on ... was doing various tests when writing chromatrons to see how different ...48k memory dump to 128k???Having problems getting a 48k snapshot to load into 128k mode using ZX Spin. Tried saving 48k memory as a binary file and loading it back in 128k mo…
There is an old DOS emulator X128.
It has ... one trick that no other emulator that I know has.
t cause reset.
So ...48k memory dump to 128k???Having problems getting a 48k snapshot to load into 128k mode using ZX Spin. Tried saving 48k memory as a binary file and loading it back in 128k mo…
[QUOTE=Ralf;767923]There is an old DOS emulator X128.
It ... one trick that no other emulator that I know has.
t cause reset.
So ...48k memory dump to 128k???Having problems getting a 48k snapshot to load into 128k mode using ZX Spin. Tried saving 48k memory as a binary file and loading it back in 128k mo…
[QUOTE=Ralf;767923]There is an old DOS emulator X128.
It has ... one trick that no other emulator that I know has.
t cause reset.[/QUOTE]
Gerton Lunter's WinZ80 emulator ...Half-Life 3There's an interesting item on Computer and Video Games that suggests Valve are working on Half-Life 3. Although Valve have never publically confirme…
Every week or two, an article or post or item ... version's release, which won't please PC gamers.
< ... mods, but offhand I can't remember any. For some ( ... />
Edit: I didn't like HL2 Episode 1 much ... great to use, why wasn't it, or something even ...
