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Looking for two games (forgot names?)....1. A game where you bounce around as a little ball. It was like a 2d platform game. You have to collect fruit or something. Later on the platforms di…
... it.
A ZX Spectrum may have been the first ... I'm starting a new Spectrum game project.
... that getting a great looking spectrum game using modern tools (which ... most out of 128k and 3mhz and dealing with contended memory slowing things ... -
My own Home Computer It's true. My company are planning to build a new Home Computer. It will use a Z80 CPU running at 6mhz, 128k Ram and will run all Spectrum and ZX81 …
... +3 ROMs and extra 128k ROM as well as the ... Important Ports
7FFD - 128k paging
D0...D2 ... the VRAM is used as Spectrum contended memory.
D1 - selects ... have to execute in contended memory to do anything and ... -
If you could re-design the Spectrum...Let's suppose you could go back in time to the beginning of the Eighties. The Spectrum is being designed as the revolutionary successor to the alread…
... thus increasing the amount of contended memory needed, making it more ... to modify a 128k Spectrum (or even any Spectrum) to graft on ... modes? Perhaps swap the Spectrum ULA with a Timex one ... the features of the 128k Spectrum, like the ZX Spectrum 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.
... be quite small. ZX Spectrum SE/ZX Spectrum +3/Pentagon/Scorpion.
128K demo then.
[ ... t be an issue. The 128K operates at a faster clock ... brew machine, which has no contended memory. The SE is more compatible ... -
Running code from the display memory?Is it possible to run machine code from the memory area used by the display file? If you were really out of memory and some part of screen is not u…
... SLOWER than the rubber key spectrum when running in lower 16K ... is slower/faster in contended memory than ZX 128k or +2 (grey). ULA ... make simple speed comparison of contended memory? Let's say how much ... -
New Spectrum HardwareHi all. Well its Friday so it seems as good a time as any (business is a bit slack at the moment) to start up a thread about creating new Spectrum ha…
... .e. 3.5hz but no contended memory)
[/QUOTE]
Yes, and ... sell a machine with the Spectrum ROMs. You'll have to ... , i.e. 48K BASIC and 128K BASIC. TR-DOS (by Technology ... -
Quick test (2)Could I ask any 128 / +2 / +2A / +3 owners to test the new version of [url=http://www.shadowmagic.org.uk/spectrum/fusetest.tap]fusetest[/url] on thei…
... detects the difference between the 128K / +2 and the +2A ... tests
Spanish +128K
frame length...0x8000+0x94fc ... failed(0xfd)
Spectrum +2E ( +2A with Garry ... skipped (b=0x01)
contended memory...passed
High port ... -
Brand new River Raid remake?one of my friend is trying to make a riverraid remake on flash just to have fun, I checked zx spectrum port of river raid. it is bad, really bad, jer…
... 't. On a standard 48K Spectrum you can manage about 8 ... clones that don't have contended memory you could theoretically do 12 ... />
You could use the 128K's screen-swapping to do ... -
Memory concerns with z88dkI've retaken my old spectrum project and sadly I've reached a dead end very fast. I'll try to explain my worst problem in a few lines. I'm not a vet…
... just that it's contended memory but it would still ... sp1_ss" (20 bytes in spectrum version) for each sprite ... sp1_cs" (24 bytes in spectrum version) for each sprite ... ahead. On a 128k machine a good approach ... />
First, the 128k spectrums (except the +3/2A ... -
Is there any video input on expansion bus?Imagine you want to build a custom display hardware, for instance, to add hardware sprites to display. Is it possible to design such a device so that…
... is doing something with non contended memory, and no VRAM data at ... a "second monitor" for the Spectrum using a TMS9929 chip. Its ... RGB signals if using a 128K model. I would suggest for ... -
Mistake in the 128K technical FAQ?[url]http://www.worldofspectrum.org/faq/reference/128kreference.htm[/url] [quote]Memory banks 1,3,5 and 7 are contended.[/quote] Really? I thought i…
... technical-docs/ZXSpectrum128K_TechnicalManual.pdf"]ZX Spectrum 128K Technical Manual[/URL], page ... Pages 4-7 are contended in that the Z80 and ... in order to generate the memory
mapped displays.[/ ... books/ZXSpectrum+2Manual.pdf"]ZX Spectrum +2 Manual[/URL], ... -
zx spectrum +2 troubleshootingHi There I am new here and I need some advise as to where to look for issues on my zx spectrum +2 it was working fine this morning .. then while pl…
... memory banks (don't get confused with the 8 banks the Spectrum 128K ... , and some more memory. This bank is contended. The other bank ... contains memory for the sole ... .
If the contended RAM is damaged, the computer ... -
zx spectrum +2 troubleshootingHi There I am new here and I need some advise as to where to look for issues on my zx spectrum +2 it was working fine this morning .. then while pl…
... at this from the Zx Spectrum 128k Technical service manual
I ... /> because according to them the Contended bank is IC's 6 ... ?
so are the memory just striped within a particular ... -
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…
... application that communicates with the Spectrum 128K. I have finished the run ... allow access to the 128K memory banks. The Spectrum link occupies the last ... ]
; *MUST EXECUTE IN NON-CONTENDED RAM*
; *CORRUPTS REGISTER 7 ... -
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…
... final Z80 code so no memory was modified, thus PUSH/POP ... BYTES of memory are left to finish the Spectrum end of the ... ]
; *MUST EXECUTE IN NON-CONTENDED RAM*
; *CORRUPTS REGISTER 7 ... about the development of my Spectrum 128K RS232 link. I'm sure ... -
Recent talk of developing new SpectrumsHi all, I can see from a few threads on here that some Wossers like Vasil and Aien 8 are interested in developing more powerful Spectrums or improvi…
... timings are switchable between 48K Spectrum, 128K Spectrum, Pentagon and Scorpion, so here ... /> Floating bus? failed (0xff)
Contended memory? passed
High port contention ... (B=0x01)[/code]
128K:
[code]Frame length 0x8000 ... -
Push/Pop data copyingWe all know that stack pointer cheese and push/pop is faster to move data than LDIR - which in turn is slower than unrolled LDI's anyway. I rewrote …
... want to synchronise with the contended memory cycles, so as not to ... method and lots of tedious contended cycle counting...
... giving 228T total for the 128K - probably leave this out ... attribute routine on an original Spectrum. I'd be delighted to ... -
The most unique game loaderFor me it has to be Technician Ted, when the stripes give way to walking men and a timer.
... nice. And it runs in contended memory. Thats rare as loaders usually ... rom would be running in contended RAM and a couple of ... ]http://nugget.no-ip.com/spectrum/loaders.rar[/url]
128k memory at the initial loading phase ... -
enJine: a fast tilemap enginetile engine based on excellent work by Joffa Smifff. here you can download first tech demo. [url=http://ketmar.no-ip.org/tmp/enJine.tap]Get It Now![…
... perfectly in FUSE in 48K/128K mode. basically, it should work ... port #FF and timing (including contended memory) and on the real hardware ... [/i]
any standard 48k/128k shell do. if you will ... game will work on any spectrum. for 128k there will be some ... -
Help with Spectrum 128k reparationHi! I have the following symptoms with a 128k unit version 6U - On power on, black and white bars (one char width each), white background - Once po…
... ROM for memory testing. I don't remember if the 128K heatsink ... is in contended or non contended area is to force your Spectrum to ... in non contended memory (and you will have a 16K Spectrum right now ... then the fault is in contended RAM, and the special tester ... -
RFC: Hardware Documentation ProjectI've noticed quite a few threads recently about missing schematics and suchlike. I've also been thinking about the low quality of some of the schemat…
... ]
Forcing a 128K/+2 grey computer to boot ... [/url]
Faulty Spectrum, but not because the usual ... misdiagnosed as having damaged non contended memory.
[url]http://www. ... a colour video on a 128K heatsink, and adding audio ... -
ULA TEST 3 results on real hardwareHi guys, I'm writing small spectrum emulator and I wanna implement precise emulation for different spectrum models :-) I found nice test for conten…
... screenshots taken from a real Spectrum, but at least with my ... on a V6Z80p board) in 128K mode ulatest3 crashes just after ... tests for contended memory was passed successfully for 48 and 128K ULA. Both ... any screenshot from real ZX Spectrum 128, but I hope my ... -
ULA TEST 3 results on real hardwareHi guys, I'm writing small spectrum emulator and I wanna implement precise emulation for different spectrum models :-) I found nice test for conten…
... tests for contended memory was passed successfully for 48 and 128K ULA. Both ... any screenshot from real ZX Spectrum 128, but I hope my ... 't work on a ZX Spectrum 128K. Now I've tried the ... works on both 48K and 128K.
I've tried ... -
No tea vicar on MB02Hello Folks, I have difficulties in getting "More tea vicar" (the free 128k version) running on the MB02. The game starts and you can choose control…
... Are you running on a 128K/+2 or a +2A/+ ... s a problem with contended memory on a 128K/+2, so you ... is used like a normal Spectrum with tape and therefore ... other disc systems on the Spectrum. However, I use just ... is not working on my Spectrum +2, even not with ... -
Setting up an IDE HDD on the +3e helpHello, Just installed a HDD in my +3e (ROM ver. 1.11). When turning on it takes a few seconds longer but then shows 2 IDE (available) as well as 1 fl…
... times.
The 128k Spectrum memory is modelled as 8 pages ... 128K total) depending on if you have an earlier or later spectrum ... will determine what memory pages are contended. Now some ... the moment is to find 128k (+2AB/+3) compatible ... -
Games with Music BugsI know there is already a thread about games with bugs (and indeed its a awesome thread), but I thought maybe it would be nice to open another one ju…
... the game in 128k mode. There is a 128k melody in the ... Amstrad machines, so the original Spectrum 128K doesn't produce the AY ... ]Games that crash because of contended memory.[/thread] -
Games with Music BugsI know there is already a thread about games with bugs (and indeed its a awesome thread), but I thought maybe it would be nice to open another one ju…
... Amstrad machines, so the original Spectrum 128K doesn't produce the AY ... ]Games that crash because of contended memory.[/thread][/QUOTE]
Thanks ... I dont remember hearing the 128k melody in my +2A, but ... work all right in the 128k Sinclair models??
