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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…
... , i could run the VGA timing from the CPU clock but ... support that is in the 128k model. But this was never ... of them with my original 128k (and +2/+3) very easy ... -
ZX-PC InterfaceRight - i'm 34 and I cant take the pain of waiting for tapes to load any more - somethings gotta give ( either the tape deck or me ). I've seen a 'Z…
I believe the 128K LOAD/SAVE commands just call the 48K ROM routines. Of course BASIC doesn't have access to the extra memory so unless you have some client code to deal with the paging issue, I'm not sure how it would work. -
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…
Sprites flickeringI am trying to write a Spectrum game in machine code. I am still a beginner in programming, however I did much progress recently, i believe. Now I am…
... . Timing's vary slightly between models of spectrum and the 128K, +2 ...Sprites flickeringI am trying to write a Spectrum game in machine code. I am still a beginner in programming, however I did much progress recently, i believe. Now I am…
... masked, this is "just" a timing issue -- still a non-trivial ... and slows things down. The 128k Spec has the double buffer ...Games that won't work with the +2a/bIs there a list of all the games that don't work with the +2a/b? Like Fairlight for example. Ta :)
... effect that depends massively on timing and interrupt tricks.
128K ROM?Fuse Emulator & Manic MinerHi All I am trying to run Manic Miner on two different Spectrum emulators on my Mac. Thing is when I load the game in Miner Willy just keeps jumpi…
... analysing all the (non-border) timing oddities of the 48K/128K speccies.Fuse Emulator & Manic MinerHi All I am trying to run Manic Miner on two different Spectrum emulators on my Mac. Thing is when I load the game in Miner Willy just keeps jumpi…
... the (non-border) timing oddities of the 48K/128K speccies.
[/quote ...128k Shadow Screen?When emulating the shadow screen in bank 7 should that bank be switched into address C000? If so, what happens if bank 7 is switched out without canc…
... the +2A/+3. On the 128K/+2, RAM pages 1, 3 ... that this will cause timing problems for timing sensitive programs that use ...Interrupt timingsHow long does the ULA hold /INT low for on interrupt on each of the Spectrum models?
... higher quality than the 48k, 128k black box or TC2048!
timing numbers would be a complete ...More RZX fun and gamesHi guys, as you may or may not be aware, xmikex and myself have been submitting recordings to Daren's archive for quite some time now. We still have …
... guess that it's the 128k RAM paging at fault there - we ... saving a snap of the 128k in the Editor is pretty ...How to detect 48k modeHow can you detect if a 128k machine is in 48k mode (from an emulation point of view, not via BASIC or machine code)? Checking the current rom? But …
... as it would do in 128K mode. Examples of such titles ... most common way to detect 128K mode in commercial games was ... BASIC statement SPECTRUM does disable paging.
Two notable exceptions ... in locked 48K mode on 128K machines) and Lemmings (tests a ...How to detect 48k modeHow can you detect if a 128k machine is in 48k mode (from an emulation point of view, not via BASIC or machine code)? Checking the current rom? But …
... /> 2) When I try Outrun (128k TZX) it crashes after the ... that the machine is a 128K and behave accordingly, trying to ... crash at some point if paging was disabled, eg if loaded ... -3-8912A soundchip used in 128K Spectrums, or its equivalent YM ...How to detect 48k modeHow can you detect if a 128k machine is in 48k mode (from an emulation point of view, not via BASIC or machine code)? Checking the current rom? But …
... checked. I understand this contains paging variables. Depending on the result ... CP instruction 48k models and 128k models then run different code ...Saving BASIC code as CODE... can't start programHi guys! I'm trying to create an adventure game for the Speccy in BASIC, called The Legend Of The Red Dragon. I'm using the excellent BASin to code…
... don't know much about 128k BASIC actually.
Are ... that 128K BASIC actually supported only up to 48k anyway (paging funda ... BASin actually support the full 128K BASIC functionality alongwith the support ...Investronica Inves Spectrum +Hi, Has anyone here ever heard of the Investronica Inves Spectrum +? This site [url="http://www.silicium.org/uk/sinclair/inves.htm"]http://www.sili…
... ROM in the 1985 Spanish 128K ZX Spectrum. There are no ... $0004 in the earlier Spanish 128K editor ROM. Anthony Tebby may ... to the non-existent ROM-paging routine at $5B00.
THE best arcade conversion??After thinking about the ZX Club Hypersports and other games such as Flying Shark what do you think is the best arcade conversion. What makes the gra…
... ... run them off the road, timing turbos around bends and other ... through make this one load 128K version trully a Spectrum racing ...Robocop in Retro Gamer this month.Quote: "Overall, this version provides mixed results. Flawless presentation (including lots of speech) and Jonathan Dunn's well known 128K title mus…
... to fall, but through great timing and luck, your fall is ... Joker. But bloody hell, the 128K version took ages to load ...Spectrum IDE port addressesWith eight standard IDE ports to address and with the common access to information via the internet I would have thought that Spectrum IDE add-on har…
... /> - Bit 1 blocks activation of 128k memory paging port
- At ...z88dk+splib2 sprites question.I'm creating a game and I have several "states" for my main sprite, such as jump, facing left, facing right, etcetera. All those states require a dif…
... future include coding a paging library for the 128K spectrums and attempt ... 'll be coding the first 128K game with AY music and ...z88dk+splib2 sprites question.I'm creating a game and I have several "states" for my main sprite, such as jump, facing left, facing right, etcetera. All those states require a dif…
... future include coding a paging library for the 128K spectrums and attempt ... 'll be coding the first 128K game with AY music and ...z88dk+splib2 sprites question.I'm creating a game and I have several "states" for my main sprite, such as jump, facing left, facing right, etcetera. All those states require a dif…
You are completely right. Before z88dk, I would have never considered stepping into assembly coding. Now I try to convert the most critial parts to assembly within the C skeleton, which is a good thing. We should try and get more people to try z88dk, I ...Emulating the SamRAM on the ZX Spectrum SEGerton Lunter gave me permission to reuse the code, but so far I have not been able to get the software to work in paged RAM banks.
... original Speccy 48/128K (or Pentagon). Demos with strict timing for any ...Emulating the SamRAM on the ZX Spectrum SEGerton Lunter gave me permission to reuse the code, but so far I have not been able to get the software to work in paged RAM banks.
... to watch some multicolour /strict timing 128K demo then.
[quote ... European Timexes have the same timing as the European 48K machine ... 't be an issue. The 128K operates at a faster clock ...Emulating the SamRAM on the ZX Spectrum SEGerton Lunter gave me permission to reuse the code, but so far I have not been able to get the software to work in paged RAM banks.
... safe to assume that the timing issue on the Pentagon stems ... opposed to 70908 on a 128K Spectrum (and the SE?).Emulating the SamRAM on the ZX Spectrum SEGerton Lunter gave me permission to reuse the code, but so far I have not been able to get the software to work in paged RAM banks.
... . Then some paging tests were done to check for 48k/128k. Don ...divIDE issuesI discovered a few issues with the divIDE hardware and FATware software that may be of interest to some people. 1. ROM paging If your Spectrum is a…
Hello.
Such things like paging inhibition must be done internally in all the non-standard machines. I suppose that in the area #0000h-#3fffh is always the vanilla 48k ROM (and for 128k / +3 clones the firmware outs #1ffdhDraft specs for TZX v1.20Hi all! In the attempt to restart the development of the TZX format, I've put online the first version of the draft document [1]. At the moment ther…
... ?
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The timing base is another important point ... the case of 128K tapes (because the 128K has a different clock ...'usr 0 mode'Can anybody explain why some programs can't be just loaded after turning spectrum on but you must type 'usr 0' before loading them?
However, the 128k mode uses the old printer buffer as a "paging swap ... routine", and thus any program that runs in 128k mode ... USR 0 will leave the paging mechanism intact, but won't ...Z80 cycle contentionHi, Does anybody knows exactly when the ula halts the Z80 clock during a memory r/w cycle? I mean which Z80 clock cycle, T1 or T2? Thanks..
... /> Don't forget that the timing is different on the +2a ... .com/cssfaq/reference/128kreference.htm"]128k[/url]. Should give you a ...
