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128K Contention - How to get it right?With my recent hardware hackery, I've built a 128K (toastrack) clone. I can't quite get the contention right though. What I'm lack is a clear descri…
... 128K (toastrack) clone. I can't quite get the contention ... 0x7ffd, 0xbffd and 0x3ffd port contention behaviour.
... a 128K machine, and passes both High Port contention tests, ... describe accurately the contention behaviour for the 128K ports?
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Another fusetest runWould anyone with a real machine be prepared to try the latest version of [url=http://www.shadowmagic.org.uk/spectrum/fusetest.zip]fusetest[/url], my…
... + 0x94fc
Machine type: 128K
Contention offset: 0x09
High port contention 1... passed
High ... /> Machine type: +3
Contention offset: 0x08
... ... passed
High port contention 1... passed
High ... -
What paging scheme is the "standard" for 128K models?Sinclair implemented an arrangement so that even numbered pages are non-contended, and odd numbered pages are contended (quoting from memory, haven't…
... O contention, I should go for a 128K contention pattern, as the 128K ... ULA does implement I/O contention ... t think that I/O contention is a big issue ... page arranging accordingly? AFAIK, 128K programs just use pages based ... -
What paging scheme is the "standard" for 128K models?Sinclair implemented an arrangement so that even numbered pages are non-contended, and odd numbered pages are contended (quoting from memory, haven't…
... contention, I should go for a 128K contention pattern, as the 128K ... ULA does implement I/O contention ... the 48K/128K ULA applies contention at every available ... /> Also, the basic contention pattern is different between the ... -
A new multicolor engine called BIFROST*I'm glad to announce the release of a new multicolor engine implemented by yours truly, including high quality 16x16 tiles designed by R-Tape: [IMG]…
... seems easy enough to add 128K support. The main reason I ... even started to read how 128K contention works...
As soon ... -
Zymosis -- WTFPL'ed Z80 Emulation Corebreaking news! i'm back with another useless project: new Z80 emulation core written in pure C! i hear you screaming: "oh, no! WHY?!" let me tell yo…
finally got 128k contention right. heh, i was pretty sure that 128k has 'even ... ', but libspectrum (and the actual 128k multicolor software) seems to disagree ... -
New test for finding missing +2A/+3 ULA timing detailsHello, having added the +2A/+3 emulation recently, I want to make sure I got the ULA timing 100% right. We know when the contention pattern starts, …
... the intended duration which the 128K ULA generates - we know for ... latest ptime version with the 128k contention change added? The tap should ... interrupt and thus skewed by contention for some other reason (for ... -
128K memory bank selection to avoid contention issuesI'm currently developing a game and I'm trying to get my head around the memory contention issues of the various 128K/+2/+2A/+3 spectrum models in or…
... around the memory contention issues of the various 128K/+2/+2A/+3 ... FAQ says that for the 128K/+2 models, banks 1,3 ... what is the cause of contention for banks 1,3,4 ... check if the machine is 128K/+2 and if so load ... downs due to this apparent contention issue. -
Contention and floating bus timingHello, I was recently playing a bit with memory contention and floating bus stuff in ZXDS and there is one thing which puzzles me a bit. It is the d…
... *224 (63*228 on 128k) cycles after the ULA ... sense it starts applying the contention a few cycles earlier, ... and 3 cycles on 128k, at least that's ... even 14347 (14364/14368 on 128k). How comes? In either ...
C.S.S. 48k/128k [URL="http://www.worldofspectrum.org ... -
Robocop 3 and Spectrum 128K toast-rackHi all, we are going on with the tests on the new 128K emulator for the V6Z80p board, and we have found something odd: Robocop 3 (designed for the 12…
... the tests on the new 128K emulator for the V6Z80p board ... for the 128K) apparently does port accesses creating IR contention (as, if ... -
Memory Contention: A Hypothetical Fix?I have just had this crazy thought: If one were to wire an additional memory chip, say a 6264 8Kx8 SRAM, in parallel with the main memory so that it …
... reduce the effect of memory contention considerably. Possibly with the addition ... 48K model, but perhaps the 128K machines might have room for ... -
Are 128K games more likely to crash than 48K ones?Hey, guys. I've been doing some experimenting with various games and even some music demos and apps, and I'm beginning to reach a conclusion that …
... reach a conclusion that the 128K versions of the games in ... of the memory contention issues between the Sinclair 128K "Toastrack" model and ... -
TZX / TAP of Glider Rider 128K Can anyone help me find a TZX or TAP version of Glider Rider 128k . The only versions I can find are Z80 snapshots or a TAP file which is a version …
... br />
Addams Family 128k - Ocean
Bravestarr - US ... DNA Warrior - Cascade
Earthlight 128K - Firebird
Prison Riot - ... Players Premier
T-Wrecks 128k - Gremlin Graphics
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Wanted: TZX of Technician Ted 128k RemixAfternoon again, So anyone have an original or copy of the title mentioned, we only have a Z80 of this one. A TZX of the 128k version would be nice…
48k with keyboard of 128k+2 and tapes..ahoi!i worked to make a 48k+ with keiboard of 128k+2 and i want to send it! so i have many tapes with games, workings'n' demo, compilation, fanzine!!!! fo…
i worked to make a 48k+ with keiboard of 128k+2 and i want to send it! so i have many tapes with games, workings'n' demo, compilation, fanzine!!!! for info contact 0347 8783346 or 3478783346.128K+2 & 100+ games ** For Sale **Hi, If anyone is interested I have a 128k+2 for sale. This comes with Sinclair & Other Joystick, and over 100 Games. All is in excellent condition (…
... is interested I have a 128k+2 for sale.
This ...speccy 128kI have a spectrum 128k that seems to work fine and load games ok. When I power it on for the first time I get the usual options screen, no problem. B…
I have a spectrum 128k that seems to work fine ...looking for 128k keypad(spanish. vers.)I am looking for a 128k keypad, spanish version(since these were only supplied with spectrums sold in spain)or english version ;) Estoy buscando un k…
I am looking for a 128k keypad, spanish version(since these ... un keypad para el spectrum 128k. El keypad se vendio en ...ZX Spectrum 128k +2Hi, can anyone help me out? I'm trying to get a 128k +2 (the black one), im not bothered about it being boxed or anything (as the price is usually …
... 'm trying to get a 128k +2 (the black one), im ...128k games wanted.I just got hold of a working +2, and would like some tested and working 128k games for it. Will pay cash, or swap for hardware/software etc... Any 1…
... like some tested and working 128k games for it. Will pay ... /software etc...
Any 128k games considered, as I only ...Plotting - 128k only or was it a 48k game aswellI installed a Speccy emulator on my Psion Series 3c palmtop computer, mainly so I could play games on the move. Rather slow and only emulates a 48k…
... sadly found out it was 128k only - it said so on ...ZX Spin 0.3 ReleasedStandard Cut'n'Paste from CSS post again! I can't get to my webpage, so I've uploaded SPIN0.3 to WOS, Alt.Binaries.Comp.Sinclair, and also Daren Pea…
... .
Fixed an \"Emulate Memory Contention\" bug
Added Magnum Lightgun ...
manner as the real 128k Spectrum (and the same as ...russian pentagon 128k for saleis anybody interested in russian speccy clone: Pentagon 128K, with tr-dos, ay, have a couple of working motherboards.
is anybody interested in russian speccy clone:
Pentagon 128K,
with tr-dos, ay,
have a couple of working motherboards.WANTED: 128k+ or 128k +2(early grey mod.) ULA chipHello, Attempting to repair my 128k+ speccy. Needs a ULA(IC1)chip from either a 128k+ or an early +2 will work also. If anyone has this chip or has a…
... ,
Attempting to repair my 128k+ speccy.
Needs a ULA ... (IC1)chip from either a 128k+ or an early +2 will ...WANTED: Spectrum 128k (Any version) and Interface 1My poor old +2A has come down with Alzheimer's and occasionally forgets to put program names on the screen, so i am now looking for a new 128k and an…
... now looking for a new 128k and an interface 1 to ...[NEW]: Spectaculator 4.0Hi everyone, Finally managed to finish it... enjoy! --- [NEW]: Spectaculator 4.0 Spectaculator is a Sinclair ZX Spectrum emulator for PCs runnin…
... Spectaculator emulates the 16K/48K/128K/+2/+2A Spectrums and plenty ...
o Brand new memory contention system and cycle-accurate display ... the cassette recorder when in 128k mode.
... loading.
o 128k .pok files weren't being ...Kempston Interface Work On 128k +2a Hi need some advise Will a Kempston Interface work on a 128k +2a machine ? ? , if so wish one would be best to use , so looking for one Aswell . …
... Kempston Interface work on a 128k +2a
machine ? ? , if so ...Kempston Interface To Work On 128K +2a ( HELP )Hi need some Advise I'am trying to play games on a 128K +2a Using a (Kempston Interface +3) but it will not work (WHY) , do you need to setup or so…
... to play games on a 128K +2a Using a (Kempston Interface ...
