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A couple of random questions......because, why not? (1) USR0 mode on the +3/+2A/B I know of its existence, I know how it's used, and I have some games that require it to work o…
... at address 23611. This, in turn, prevents the ROM’s IRS ... does by paging in and out a couple of RAM banks. This ... corrupt the contents of the RAM and disrupt the game code ... /> You can simply issue a POKE 23611,204 in +3 BASIC ... -
What are editor scratchpads?I've been reading and experimenting with 128 bank switching and using the shadow screen. The technical reference [url="https://worldofspectrum.or…
The silicon disk (also called RAM disk) is an area of ... will be lost when powering off). On +2A and +3 it ... (I mean, using PEEK and POKE to read them), providing you ... break the program (that, in turn, will use the editor and ... -
128 Memory PagingI'm having a problem getting my brain around paging. Well, actually the bit I don't understand is how reading I/O ports works! I hope the collective …
... problem getting my brain around paging. Well, actually the bit I ... /> Port 32765 controls the memory paging. Bits 0-2 determine the ... , so to do a simple RAM page swap, all I want ... -
Sam Coupe - WANTEDWould like Sam Coupe preferably as follows: -512Ram -2 Floppy drives -All original Manuals/Documentation -Disks that came with it -Power supply and…
... great to get me started off.
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All ... i dont think i'd turn it down if it met ... . I can always get extra Ram/Floppy drive ( although little else ... -
POKE, PEEK and RANDOMIZE USRAnyone got a store of useful POKES, or RANDOMIZE USR statements with interesting effects? As a start, try anything from RANDOMIZE USR 1216 to RANDOM…
... . I also had a ZX81 POKE (or, more probably, PEEK) once ... K, so "16" if the RAM pack was on and "1 ... -
HELP 4532 or 4864 RAM wanted !Hello My real spectrum fell off yesterday I know that one RAM memory chip is out of order There was 8 X HM4864P-2 but I saw in the Spectrum schemati…
... spectrum fell off yesterday
I know that one RAM memory chip ... here to set 16K of RAM so 32K are enough to ... -
ZX-81 Ram Pack problemHi! I know this is a ZX Spectrum forum, but I am hoping someone here might be able to help me out... I have posted this to c.s.s. but noone was able…
... which is probably normal since ram
test takes a ... original
Sinclair ZX 16k ram pack issue 3 .
ram pack :
... line :
1 POKE 11,1
... a posibility of faulty RAM somewhere on the lower ... -
ROM paging questionAssuming the Spectrum 128 memory map and port addresses, but two custom ROMs in place of the normal Editor and BASIC, what is the most efficient way …
... ROM-1, which means the paging code needs to skip those ... .
The RAM part of the paging routine should live at ... -
ROM POKE-able emulatorIs there an emulator available where you can POKE the ROM (and also altering it) while running? Thereby making the ROM work like RAM. Preferably a…
Is there an emulator available where you can POKE the ROM (and also altering it) while running?
Thereby making the ROM work like RAM.
Preferably an emulator running on MAC OS! -
Where to get Spectrum RAMSigh. Even obsolete nixie tubes seem to be easier to get hold of than Spectrum RAM. I've tried the usual suspects (eBay and google searches), but not…
... get hold of than Spectrum RAM. I've tried the usual ... dead Spectrums with suspected bad RAM. It'd be nice to ... stock rather than stuff desoldered off other dead computers? -
Spectrum RAM Paks...This jogged my memory (excuse the pun!!) : [url]http://cgi.ebay.co.uk/CURRAH-32K-RAM-PACK-BOXED-SINCLAIR-ZX-SPECTRUM_W0QQitemZ150057889352QQihZ005QQ…
... ebay.co.uk/CURRAH-32K-RAM-PACK-BOXED-SINCLAIR-ZX- ... 16K model with this 32K RAM pak.
It ... was faulty. Take it off and the Speccy worked fine ... them!
16K RAM paks were very popular for ... -
Any interest in new low-cost mass-storage interface with 512K RAM?I've recently added support to ResiDOS and the +3e ROMs for SD/MMC card interfaces; in particular, ZXMMC (which has no onboard RAM and so is only sup…
... , ZXMMC (which has no onboard RAM and so is only supported ... retained in the built-in RAM and are instantly available when ... run from the built-in RAM, including ZX80 and ZX81 emulators ... 128K snapshots
[*]Screenshot and POKE facilities in Task Manager
More general questionsJust some more things that I wonder when I can't sleep... 1. What's the highest score anyone's ever achived when playing snooker? I mean, yes there…
... CPU speed confused with the RAM needed, or whatever.
... Trek and it's spin-off's so successful, when ... s Eastenders when you first turn onto the channel. That ... I know of. You turn onto it and straight ... to make it look slightly off colour, something that only ...Retro Fighter shoot-em-up development updateHi all, Some of you might recall I was developing a little shoot-em-up with the working title of Retro-Fighter. Well after a long hiatus I managed …
... .
You can turn collision detection off if you like (ie ... with background / baddies) using the poke in line 5.
What I hate about computers and/or video gamingYesterday I spent approximately four months (subjecively that is, objectively it was around two to three hours) fixing my mate's PC. I won't bore you…
... , DLL errors at every turn, three weeks boot up ... br />
* Microsoft killing off the XBox, in favour of ... only having 64MB of RAM (which is shared between ... the program and the video RAM). The game authors did ... this tiny amount of RAM, but more would have ...Spectrum ethernet... step 1.1Yeah, a tenth of a step :-) Here's the W5100 board up and WORKING: [url]http://www.alioth.net/tmp/w5100-online.jpg[/url] This is called the "Get Th…
... the ALIAC-2 supports sideways RAM natively, has a CTC which ... thing I did was to poke the oscilloscope probe on one ... really, really easy to rip off the board :-(
It ... 1.8 volt supply traces off the board. No way I ...Testing other ZX roms on DivIDE / DivIDE+This is package of different ZX rom images with DivIDE instalator. Each file contain ROM image at adress 49152 + assembler Prometheus with installati…
... protect, 8192-16383 = writeable divide ram 2). Installator copy high 8kB ... rom image parallel to divide ram page 1 and modify char ... power-on is allram mode off.
[url]http://velesoft ... use full allram mode 16kB paging with write protect, but this ...Turn based games (on/off line)Can you recommend any turn based games? Human vs human, human vs CPU, online/offline/via email. I tried the online UFO-like game made by the origin…
Can you recommend any turn based games?
Human ... />
But I do love turn-based games ... probably my favourite ... />
I've googled for turn based games but haven't ...Another badly behaved RAM upgradeI have a 48K issue 4A board (yellow it is) that was a 48K machine from new, but only reports 16K working with the Sinclair ZX Test ROM in an Int2. H…
... />
Have done the whole poke test and it comes back ... sockets and installed all new RAM. Same problem!
So ... that are part of the RAM upgrade, they all check out ... thats the whole of the RAM upgrade chippery tested!
Skooldaze TooDear WoSsers, Thanks to Skoolkid's disassembly I'm attempting to write a new "improved" version called [B]Skooldaze Too[/B]. As part of the improvem…
... a seat
4 - Get off the floor
5 - Come ... to play again.
40 - Turn to page 123 of your ... doesn't run in contended RAM so much. The new features ...The Goldfinch updates thread([url=http://www.worldofspectrum.org/forums/showthread.php?t=25034]original announcement thread here[/url] - I figured it was worth starting a new to…
... we have 8K ROM + 8K RAM to play with before we ... considering tricks like paging or loading bootstrap images off disk. It's ...Tutorial - learn machine code in 30mins[B][I]Message from the moderators[/I] - bigjon has requested that readers' attention be drawn to a better version of this tutorial, one which is easi…
... 32768) and memorable address in RAM
;initialise score
... 201 at address 33000 in RAM
We'll ... per byte.
Try POKE-ing 255 into bytes within ... in some free bytes in RAM.
Now for the ... the stack first will come off last.
Insert line ...Diagnosing Spectrum 48k (faulty RAM chip?)I have a Spectrum 48k (I believe it may be an upgraded 16k model) that doesn't work, and never has ever since the owner gave it to me. When you turn …
... it to me. When you turn it on, the normal copyright ... joints for the bottom-left RAM chips seem to be very ... physically on the board which RAM chip the display attributes is ... on. This all points towards RAM for me - I don't ...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 …
... :
Bits 0-2: RAM page (0-7) to map ... /> Bit 5:If set, memory paging will be disabled and further ... thus:
Bit 0: Paging mode. 0=normal, 1=special ... : Disk motor; 1=on, 0=off
Bit 4: Printer port ...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…
... the detailed timings of contended RAM. It gives timings for Z80 ... in, or reading/writing, contended RAM.
I can decipher ... in 48K, or double buffered -- paging RAM bank 7 into a 128K ...newbie: on/off and video outputHello, having a lot of 8bit computer I tried the scart cables I have one gave me a scrolling image the other one gave me a good picture but no sound …
... seem to find any on/off button
is that so ... the power supply cable to turn it off and on?:o
Anyone wanna put together a Speccy package for a noob?Hey all, Bought a couple ZX Spectrum tape games off eBay a while back. My whole collection soon went into storage and I hadn't unpacked it until rec…
... couple ZX Spectrum tape games off eBay a while back. My ... of variation and revisions, different RAM amounts etc.) Obviously would need ... development so maybe I could turn around and release a game ...Not worth reading really - unless you have some spare time(Mods if you want to move it please do it does have a sort of hardware theme and a couple of recommendations at the end :) About two years ago now I…
... ago" zx spectrum I bought off ebay did not work. ... weary of. This in turn makes me realise just how ... problem - I swithed it off and on again. It worked ... unplugged - no IF1 and no RAM turbo, swithed her on.... ... worked cycled it on and off typed hard, typed soft ...Spectrum 48k on/off switchWanted: Spectrum 48k on/off switch... These originally fitted to the back of the Spectrum, in which the PSU lead plugged into. They incorporated a r…
... :
Spectrum 48k on/off switch... These originally fitted to ... rocker switch to turn the Speccy on or off. I'm after ...
