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Some ever noticed that +2A/+3 halts Z80 using WAIT?I mean: Anyone ever noticed that the +2A/+3 halts the Z80 using WAIT? All documentation I've read about contention state that the ULA halts the Z80 …
... documentation I've read about contention state that the ULA halts ... at the screen RAM, so contention should be strong here.
DidntXSpectrumoh yes i just found this emulator for the Xbox 1 and boy is it good. It has loads of options loads almost any format going and fairplay is very close…
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Image Type - Auto Detect, Tape, Snapshot, Plus 3 Disk ...detecting 128 mode ?quick question really, someone who programs would know I guess. am I right in thinking some things detect 128 program and adjust accordingly , say i…
... right in thinking some things detect 128 program and adjust accordingly ...An idea for a possible(?) new interfaceDue to the Spectrum's processor speed and the way the ULA works, there are a couple things (among others) that are difficult to do: -Gigascreen or a…
... interface is possible, programs could detect if it was connected and ...incompatible hardware / software list?I'm just curious after a few things won't load up via the DivIde interface / +3 e.g. starstrike 1 & 2 tape via a divIde interface... work fine off s…
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some things either auto-detect 128 machine or fall over ...Reading the Spectrum KeyboardI've been playing around with reading the Spectrum keyboard (in the guise of Spin 0.666) using Z80, and I believe I've discovered that the number of …
... -presses I'm able to detect depends upon which keys I ... , I notice that I can detect all of 'Q', 'A' and ... simultaneous key-presses I can detect depending upon which keys are ...IDE controllerRecent time I have problems with my ide hdds. I turn on the computer, and the bios won't detect both primary ide drives. Then I open case, pull out a…
... , and the bios won't detect both primary ide drives. Then ...Looking for YS column - anyone able to search?Way back in, erm, well, maybe 1986 or 87, or maybe 88, there was an occasional column in Your Sinclair magazine, the name of which I don't remember, …
... tip on how to programmatically detect whether a Kempston joystick was ...CPI emulationI'm currently writing Sinclairean's emulation assembly for the CPI/CPD/CPIR/CPDR instruction group. Does anybody know what exactly the behavior of th…
... write should be checked against contention.Open proxies - should I be worried?For the past few times, I've been brought up short while logging into IRC by a message saying that I've been Z-line due to detection of open proxies …
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1) A way to detect which proxies are open. The ...unusable KEMPSTON JOYSTICK in gamesSome ZX games use bad routine for read kempston joystick port. For example game BLOOD VALLEY read kempston joy from port #DF ( BIN 11011111 ). This s…
... of port #1F, this hardware detect any adress with A5=0 ... fixing this games ?
- detect in ZX emulator instructions for ...iXpectum 1.2 HD (iPad enabled) is out!iXpectrum now supports iPad on jailbroken devices ;) Thanks to Ryosaebaa for his support... You can download by now at: [url]http://code.google.co…
... ones).
- Fixed flags and contention in IND,INDR,INI,INIR ... ,OTDR instructions.
- Improved port contention emulation.
- Only read AY ...Memory mapping: Pentagon compatibility?I'm writing something that will rely heavily on the Spectrum's ability to switch screen buffers in hardware (port 0x7FFD). The original Spectrum 128K…
... 16K bank pageable) and the contention timings on port 0x7FFD are ...Stimulate your senses..?Ok, was mulling this over the other day - it's probably been discussed before but what the heck. I was thinking back to home computers & entertainme…
... , we can use sensors to detect brain activity & use the ...Will the real, *Darth Vader* please stand up.Well, with all this [I]Matrix/Terminator[/I] dispute going on, I was reminded of a [I]Star Wars[/I] contention, with Bob Anderson's claim as being th…
... a [I]Star Wars[/I] contention, with Bob Anderson's claim ...Spectrum 128K RS232 to PC serial cableIf you have read some of my recent posts then you will know that I am eager to link my Spectrum +3 to a PC. This will be done by wiring a standard PC…
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1 DCD Data Carrier Detect
2 RXD Receive Data ...The Idiot's guide to 3.5 inch floppies on a +3All help gratefully received, including blow by blow instructions and tutorials. I am interseted in adding a floppy drive (3.5 inch) to my +3 as an …
... not to cover the density detect hole with tape. I have ...contended memory...so memory contention on the toastrack and the grey +2 is in the wrong place compared to the documentation, yet the +2a/b and +3 it is in the correct …
so memory contention on the toastrack and the grey +2 is in the wrong place compared to the documentation, yet the +2a/b and +3 it is in the correct place
can it be altered on the toastrack and grey +2 to match the the +2a/b and +3?Spectranet updateOK, so I've not written an update here for a while...so here's a quick summary, the gory details are on the Spectranet news page on my wiki. * Hardw…
... reset and being able to detect the link is a useful ...Contention: LDI vs LD (ss), rAccording c.s.s. FAQ: instruction LD (ss),r breakdowns as pc:4,[b]ss:3[/b] and LDI as pc:4,pc+1:4,hl:3,[b]de:3,de:1 x 2[/b] can anyone explain why …
According c.s.s. FAQ:
instruction LD (ss),r breakdowns as pc:4,[b]ss:3[/b]
and LDI as pc:4,pc+1:4,hl:3,[b]de:3,de:1 x 2[/b]
can anyone explain why WRITE operation in LDI introduces two delays? or that [b]de: 1x2[/b] means ...DivIDE+ and the 48k SpeccyI've 3 48k speccies of various revisions and none of them are working with my DivIDE+ yet all my 128's do, yet I'm sure when I first had it I'm sure …
... press space, but doesn't detect the card and the nmi ...Hacking a Joystick InterfaceI have a DK'Tronics twin-port joystick interface that does Kempston and Sinclair 0-6 keys. I know it has only 14 lines connecting it to the edge con…
Emulating the 128KeIt occurs to me that I wasn't frequenting WoSf when I created the 128Ke standard, which means some people haven't heard of it. Here it is: [url]http…
... IF2). Software written for correct contention that crashes the original 128 ...Upgrading the Humble Spectrum 128 +2 (Grey)Hello there my fellow WoS'ers I am at a subtle in-pass in my wants for one of my +2 motherboards. I received this mobo, DOA in a job lot from fleab…
... . The ability to switch memory contention modes (128k / +2A/B)[/B ... 128K to the Amstrad memory contention model sing a simple GAL ...ZX Spectrum 48K clone and test resultsHi! This is my first post, so, first of all, I'd like to say hello to the whole community! I am Alessandro Dorigatti from Italy and I'm developing …
... . some tests in FuseTests, IR-Contention) and others show some glitches ... : Fusetest is OK, IOcontention OK, contention OK, Float48K OK, FloatSpy OK ...Games on more than one platformAre there any games you've loved so much you've bought them on a number of platforms? I adored Sunset Riders and Zombies on my Mega Drive and ultima…
... SNES. Barely a difference to detect, but a sad sign of ...ZXMMC+ emulation added to Z80p48K emulator for the V6Z80p+Hi friends! As time ago I've posted a thread about an FPGA clone for the V6Z80p board, I'd like to give an update about the status of the project. …
... , 14MHz (experimental). The original ULA contention algorithm is always applied. The ...+3e with DivIDE systemsIf we replace old R-GAL chip on original DivIDE with new XR-GAL (this is only firmware for GAL chip) then will possible DISABLE or ENABLE any DivIDE …
... ram, need reset ZX for detect IDE,etc. Yet is possible ...Best game ever?Not sure the best way to do this, thinking top 10s with a sliding scale of 10 points awarded to the game you vote 'best' down to 1 point for your 10t…
... and Soccer Boss in serious contention. I think DTST and Emlyn ...
