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Jet Set Willy 16K (inspired by?)[URL="http://www.worldofspectrum.org/infoseekid.cgi?id=0024336&loadpics=3"]Jet Set Willy 16k[/URL] Inspired by some-game-or-another. Say ... I noti…
... ;loadpics=3"]Jet Set Willy 16k[/URL]
Inspired by ... -
Games that will be 25 years old this year....I thought I would make us all feel old and see what games hit the quarter century this year...[url=http://www.worldofspectrum.org/infoseekadv.cgi?wha…
... =0&players=0&memory=0&language=0& ... 's the best way to read through it)
A ... -
128k memory use in multiloadsIs there a way to play golden axe and turtles coin op game on a real spectrum, without having to multiload and just the load the whole game into the …
Is there a way to play golden axe and turtles coin op game on a real spectrum, without having to multiload and just the load the whole game into the memory at once? -
IDE emulation and delaysA few months ago I was told that IDE emulation, while perfectly usable, isn't accurate enough to compare it to IDE access on real hardware. On some e…
... you do a multiple sector read (the routine requests 256 sectors ... the IDE device (solid state memory, magnetc disc or optic disc ... those based on solid state memory (Compact Flash for instance), ... IDE device is solid state memory (which employs an internal linear ... -
More questions to ponder/argue/ignore as you wish...Just copying some stuff to a memory stick, and I found some old questions I'd intended to post on these forums to provoke debate, that I'd never got …
... copying some stuff to a memory stick, and I found some ... /> 9. Some time back, I read a thread where some people ... consoles CPU(s), graphics card, memory, etc, then you might well ... -
Faked MP3/memory sticks etcI recently bought an MP3 player on Ebay from jolly old China. I suspected it would be fake as it was advertised as a 16gb MP3/MP4 player and cost me …
... I downloaded that tests flash memory and that came back saying ... -
zx spectrum 128K+2(gray)-vanishing colorsHi, I just got "new" zx spectrum 128k+2(gray) made in uk version. Beside tape dead and memory issue - only first 16k RAM works in 48k mode, it has s…
... tape dead and memory issue - only first 16k RAM works in 48k ... ?
P.S. For memory I will open another thread ... -
128kB software with incorrect memory pagingI search all ZX software using incorrect memory paging via OUT (253),A. This software must write to port data value with D6=1 for compatibility with …
... all ZX software using incorrect memory paging via OUT (253),A ... use on this computers different memory pages. -
Problem with Spin 0.7s +3 file I/OI'm currently trying the +3 disk functions in z88dk. I've based my work upon the simple snippet Winston posted a while ago, but doing the contrary. H…
... +3 Disk, mine attempts to read an image to screen. Here ... from the above source at 32768 and runs it.
[b ... -
Modding / repairing a +3I've got a +3 and I'm repairing and enhacing the computer. The enhacements I've done so far: - A slightly buggy video composite output. - Repairing …
... lost the pin that detects read protection. I guess I can ... it's better leave the memory alone and go for the ... -
Spectrum v Amstrad CPC rangeAmstrad seemed to be a rather late starter in the 8 bit micro computer race. I never really saw one outside a shop, only a few people at school had o…
... Speccy?
I have read elsewhere on the internet that ... was roughly double what my 16K expanded Vic 20 displayed, which ... -
Midi Out from machine codeI need to send midi-signals by machine code, while Basic is too slow for my current project. I already read I can use hookcode #11E, but I have some …
... project.
I already read I can use hookcode # ... the 128 and +2, memory is entirely controlled by ... (0-7) to map into memory at 0C000h.
memory between 0x4000 and 0x7fff, ... br /> Bit 5:If set, memory paging will be disabled and ... -
Image to ZX Spec 1.2 Released (Video and high performance support)Yes I know it's only been about three weeks since 1.1 but I've been working very hard on this version and has a major work engine overhaul for multi …
... are needed).
Please read the README Known Issues and ... performance (reduced object overhead).
- Memory settings changed (>512MB contiguous ... aggressive heap mode for better memory use.
Download 1 ... -
Static vs stacked local variables in z88dkHello everyone. I'm doing a program for Spectrum 48KB with z88dk v1.8 (XX Mar 2008), and I eventually discovered that if your local variables in fun…
... functions go beyond the address 32768, far from the ULA's ... bytes, which largely compensates the memory allocated by all static local ... -
converting ZX128 software for SAM COUPESAM COUPE is computer compatible with ZX48 model. Use same ports, same keyboard with compatible membrane, 64kB adress space with possibility connect …
... />
Additional info about 1MB memory and AY ports:
- converted ... 2 is morrored to adress 32768-49151 as on original ZX128 ... ZX128
- in adress space 32768-65535 CPU run at 6 ... for ZX clones with extended memory support. (software for Pentagon ... -
Jumping the sharkBored again, so "inspired" by a post on a forum I read last week (can't find the link, I'm at work now), here's a list of programs that I think have …
... post on a forum I read last week (can't find ... moments. The best criticism I read about it was when someone ... />
Again, going from distant memory here, but if I remember ... -
Looking for a ZX81 gameHi all, I'm trying to find the name of a ZX81 game. It was a sort of maze / adventure game. There would be a maze on the screen, with something like…
... hoping-to-survive part. My memory is rather blurred as to ... game. It was certainly a 16K game, and very possible that ... -
Why only 2 colors ?Maybe this question dont go on this part of the forum, but dont know what other part to ask. Why the Spectrum only can show 2 colors at time in the …
... ask this because lately i read some documents where the Amstrad ... the Spectrum.
I read that, in fact the Spectrum ... +3 the same amount of memory. Maybe not the same ULA ... -
4164 memoryHi all, I'm looking for 4164 memory, probably 4 chips. If you have some you willing to part with for some cash, let me know how much you want for it…
Hi all,
I'm looking for 4164 memory, probably 4 chips. If you have some you willing to part with for some cash, let me know how much you want for it + postage.
Cheers. -
Rom Routines list ?Exist some document that show detailled the routines on the spectrum ROM ? Ad for the Spectrum +3 ? are they the same or exist more ? Example i was …
... and assembled to the 32768 position of memory. When i made the ... Randomize USR 32768, it resets. Why ... -
memoryprobably a dumb question i have 1gb memory in my PC, if i buy another 1gb memory (the same one i bought before.) and plug it into the other slot, do…
...
i have 1gb memory in my PC, if i ... buy another 1gb memory (the same one i bought ... -
+2A extended memory map & ULA bug?The [URL="http://www.worldofspectrum.org/faq/reference/128kreference.htm"]128K reference page[/URL] says: [quote]The ULA bug which causes snow when I…
... set to point to contended memory still occurs, and also appears ... set to point to contended memory.[/quote]
Will the ... , with RAM bank 4 (contended memory) in 0x0000-0x3FFF, and place ... -
testing if speccy is fully functionalHi, There is so much mention of T states but still confused. Does this mean if an instructin is out by a T-state or more then the speccy is faulty?…
... faulty?
Also I read somewhere that speccys have different ... , ULA, and Z80 processor and memory for the 48k and heatsink ... -
Arkos TrackerHi all, I'm proud to present you my Windows-based Tracker : Arkos Tracker, for you to compose for Spectrum, CPC and MSX. It requires .NET 3.5 at lea…
... the same position, why not. Memory saving !
- A Track can ... "Special Tracks" that can be read through the external player while ... -
LDIR timings in contended RAM?The 48K Spectrum technical reference page ([URL="http://www.worldofspectrum.org/faq/reference/48kreference.htm"]here[/URL]) describes the detailed ti…
... LDIR instruction in non-contended memory, and the source (HL) and ... destination (DE) addresses in contended memory.
Machine cycle 3 ... take 3 T-states to read the contents of (HL), but ... -
Broken ram or what?Hi! I own ZX Spectrum 48K. When i run command PRINT PEEK 23732 + 256 * PEEK 23733, I should get answer 65535? But i get 49151. In my machine the upp…
... . In my machine the upper memory chips are in sockets so ... correct because i now had 16K Spectrum.
So i bought ... i remove upper memory chips, test program says memory is OK.
Seeking alternatives to DATA statementsAnyone know of any memory saving alternatives to storing a list of numbers, other than using DATA statements or poking data into addresses?... Im ti…
Anyone know of any memory saving alternatives to storing a ... =1/(51+0)
20 READ L: IF L=0 THEN ... : GO TO 20
25 READ P: BEEP MININ*L,P ...Opinion: Good game design or bad game design?.. thanks to John Elliot for directing me to this series of videos. The below link is a 12 minute playthrough of part 4 of Grannys Garden on the Spe…
... commentory.
My thoughts, read this after viewing the video ... makes it a very good memory test and test of taking ...Best 16k Games?Thought you guys might like this over on Retrofusion :smile: [URL="http://www.retrofusion.org.uk/article/722/1/top-ten-16k-spectrum-games/"]top ten …
Thought you guys might like this over on Retrofusion :smile:
[URL="http://www.retrofusion.org.uk/article/722/1/top-ten-16k-spectrum-games/"]top ten Spectrum 16k games[/URL]Using the stack to copy memory blocksA [b]PUSH[/b] and a [b]POP[/b] instruction together take less time than two [b]LDI[/b], so long [b]POP/PUSH[/b] sequences are sometimes used to copy …
... , this requires several kilobytes of memory - it would be much less ...
