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Adding chips to a 128k SpeccyI thought I rememberd reading somewhere once that you can add a second AY sound chip to a speccy. Is this true? And if so, why?
... sharing the same crystal for timing.) I tried to compensate for ... -
Announce: Crap Game Competition 2004The comp.sys.sinclair Crap Game Competition 2004 is now officially open! :roll: [url="http://www.speccyspoilers.co.uk/cgc2004"]www.speccyspoilers.co…
... was never a question of timing your hit of SPACE well ... -
zx32 and Windows XPI like zx32 and I use it for all the games I download from WOS. But does this emulator work under Windows XP ? You see, I am going to upgrade my comp…
... just need to put the Clock Speed slider in the middle ... -
zx32 and Windows XPI like zx32 and I use it for all the games I download from WOS. But does this emulator work under Windows XP ? You see, I am going to upgrade my comp…
... . Where do you have the Clock Speed slider? Does moving it ... -
zx32 and Windows XPI like zx32 and I use it for all the games I download from WOS. But does this emulator work under Windows XP ? You see, I am going to upgrade my comp…
... of course using Windows means timing problems that you won't ... simplest way to solve the timing problem.
You might be ... -
zx32 and Windows XPI like zx32 and I use it for all the games I download from WOS. But does this emulator work under Windows XP ? You see, I am going to upgrade my comp…
... . Where do you have the Clock Speed slider? Does moving it ... not. If I move the Clock Speed slider to the left ... -
Smooth Screen ScrollingHi Everyone, Any suggestions on what is the best way to do horizontal scrolling ie. in Zynaps fashion. I am working on a routine at the moment, whi…
... will add around three hundred clock cycles, but they're nothing ... l, saving an extra 2 clock cycles per byte. If memory ... -
Sparky eZX-BASIC Project in need of FPGA ExpertYou probably are not familiar with this project, but it is a computer system based on Zilog's new eZ80 chip and the OS is a superset of ZX BASIC. Ju…
... just can't hold the clock line high like the Spectrum ... " project. Once you selected a clock frequency and calculated everything to ... -
Can Anyone explain sprites in Jet Pac/Atic Atac etcJet Pac was 16k, and yet the sprites were impressively fast. I notice they had a slight flicker at times, but were notmally pretty flicker free. W…
Just cos the game is 16k didn't mean that the graphics would be any slower... I'm sure you figured that one out.
And yes, it's probably due to XOR'ing during the vertical retrace or pre-frame timing that does it.
D. -
Clone Project feedbackFinally i now have some time to start again with my clone project. I have decided to drop the 48k project and go directly on a 128k clone. This migh…
building a computerFor some reason having come of age (25 last feburary) I've begun to get the itch to build my on computer, i.e. from scratch, not plug together pc par…
... 'll need to know about timing diagrams: these diagrams show how ... to respond properly. Zilog's timing diagrams show what goes on ...I would like to write emulatorHi guys, I'm new to this forum but I realise that you must get loads of posts from people asking "how do I write an emulator" so I'll try and be spe…
... found the FAQ's on timing invaluable.
Although I ...RZX for Sabre WulfI was just about to send an RZX for Sabre Wulf to the RZX Archive when I noticed they don't accept Ultimate's (and other companies' who haven't given…
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I can understand the timing, thing, state of a snap ...RZX for Sabre WulfI was just about to send an RZX for Sabre Wulf to the RZX Archive when I noticed they don't accept Ultimate's (and other companies' who haven't given…
... in that frame. If your timing was off by *any* amount ...Sparky eZX-BASIC Project in need of FPGA ExpertYou probably are not familiar with this project, but it is a computer system based on Zilog's new eZ80 chip and the OS is a superset of ZX BASIC. Ju…
... scare you though. With a clock speed of 50MHz, it is ...Can Anyone explain sprites in Jet Pac/Atic Atac etcJet Pac was 16k, and yet the sprites were impressively fast. I notice they had a slight flicker at times, but were notmally pretty flicker free. W…
... tstates off its worst case timing.
Also the Inc_Row ...Cobra - scrollingHi everyone, I have been studying some of the code in Ocean' Cobra game using a debugger, in the hope of improving my own scrolling routines. In cas…
It seems logical enough - the memory refresh signal is probably linked to everything else, providing another way of getting a timing sync.Graphics in bordersI am 50% certain that I remember a game that had graphics in the borders. This always made we wonder why none of the other games did. Am I right or h…
... machines, but with distorted border timing.
CristiBomb Jack 2Does anyone like this sequel? To me it's a dull, unexciting, badly-designed, visually-horrible mess, even before you consider how great the original …
... '89)
Gregory Loses his Clock 91% Iss. 69 (Oct '89 ...Interesting Custom LoadersHi everyone, I was just thinking about custom loaders on the spectrum and I thought I'd ask you all what you thought was the best one. I'd have to …
... experts. Can I alter the timing data for a block in ...Interesting Custom LoadersHi everyone, I was just thinking about custom loaders on the spectrum and I thought I'd ask you all what you thought was the best one. I'd have to …
[quote]
Can I alter the timing data for a block in a TZX file to produce a double-speed loader?
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Just halve the pulse lengths!Most popular new features? I know some people like a spectrum to be emulated as authentically as possible, while others like myself like features which improve the gfx, sound,…
... are so tricky, and the timing thing (which shocked me, with ...Most popular new features? I know some people like a spectrum to be emulated as authentically as possible, while others like myself like features which improve the gfx, sound,…
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[B]Portability.[/B]
Timing-independent recording logic for maximum ... things are claimed are about timing only, but no words about ...Most popular new features? I know some people like a spectrum to be emulated as authentically as possible, while others like myself like features which improve the gfx, sound,…
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[B]Portability.[/B]
Timing-independent recording logic for [B ...Bomb Jack 2Does anyone like this sequel? To me it's a dull, unexciting, badly-designed, visually-horrible mess, even before you consider how great the original …
... , whether-it be beacuse of timing, memories associated, game content within ...New Turbo-Load version of Tales From A Parallel UniverseNot very interesting to most, but I know some of you still use 'real' Spectrums. While fiddling around with a program I created ages ago to build c…
... , according to my very rough timing (watching my watch while it ...Sir Fred helpAnyone know how to kill guard with the sword? I always get killed during a swordfight, I know that you have to use the sword to get past these guys.…
... , rollback or totally accurate colour timing (all games work, and most ... a few hyper-precise colour timing demos don't work, such ...What's wrong with YS94...Hello, I'm Steve Anderson. You might remember me from such magazines as Your Sinclair and, um, that's it. I was the one who wrote a platform game in …
... to financial woe and importune timing (e.g. the total lack ...OT - PVRsAnyone got one? I'm interested in getting one because my VCR keeps chewing up tapes and shutting down when it tries to record - which is most unhelp…
... now, mine was ?175 - typical timing. Anyway, it's excellent, especially ...
