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Speed tip - "e" notationHi Folks, Whilst reading my "new" Sinclair ZX Spectrum BASIC manual I came across "e" notation again. In MRT I have the following line which is use…
... , the 128K's additional 16K of ROM seemed to add very little ... and found it it's ROM was 128K I was amazed ... -
ROM switch on NMIHello! Please, help me or point in the right direction. I am building a project for 48k spectrum which must activate its rom (actually static ram) …
... it with a valid lower 16K address, in other words before ... port and have their own ROM. -
ROM switch on NMIHello! Please, help me or point in the right direction. I am building a project for 48k spectrum which must activate its rom (actually static ram) …
... the access it to lower 16K (ROM) AND MREQ is low heck ... -
Mervyn J Estcourt?anyone know what he is doing now and where I can contact him? Programmer of such Speccy classics as 3D Deathchase, Luna Crabs, Full Throttle and Spee…
... to release an Interface II 16K ROM version of Deathchase. I have ... what you can do in 16K! It includes information on how ... -
Repairing another Issue 2 48K Spectrum.I said at the start of the other thread that I've got another one of these and I've started investigating it. The board is more-or-less exactly the …
... and captured the moment the ROM's memory test code worked ... then initialised properly as a 16K system. Hurrah!
Sadly ... IC22 still resulted in a 16K Spectrum. POKE and PEEK in ... -
Mervyn J Estcourt?anyone know what he is doing now and where I can contact him? Programmer of such Speccy classics as 3D Deathchase, Luna Crabs, Full Throttle and Spee…
So I guess that is a yes to the 16k rom cart question huh...he doesn't seem to care. -
Mervyn J Estcourt?anyone know what he is doing now and where I can contact him? Programmer of such Speccy classics as 3D Deathchase, Luna Crabs, Full Throttle and Spee…
... is a yes to the 16k rom cart question huh...he doesn ... is the original IF2 test rom. -
SPECTRUM command and 48 BASICAs we (almost) all know, when a young Rupert Goodwins redesigned the Sinclair/Investronica ZX Spectrum 128 ROM 0 in late 1985, he kept the SPECTRUM c…
... any means to burn a ROM, nor the expertise necessary to ... software written for the original 16K and 48K machines to run ... -
How to create .TAP that loads into high memory banks?I want to create a program that uses the extended 128k memory, the banks that can be switched into the 0xc000-0xffff area. For the simple stuff I've…
... of 40K using the standard ROM loader (for divIDE compatibility). There ... C that will assemble eight 16K blocks of code into a ... -
Outrun Europa in colourSwainy suggested that he'd like to try his luck with Outrun Europa colorful graphics and see if they can be improved. Let's give him the chance :) A…
... other component was an enhanced ROM (SE BASIC).
Of ... everything written for any Spectrum 16K/48K/128K, Timex TC2048, Tx2068 ... mode (such as the IF2 ROM carts).
If someone ... -
Would things of been better if the NMI was fixed ?I was just wondering, if the NMI bug was fixed say early on in production, so for instance all issue twos (and late issue ones) and beyond had the "f…
... rushed. This presumes that ROM paging was still proposed for ... firmware, despite a 'finished' ROM that included network/RS232 support ... have fitted into the 16K ROM without some pretty sophisticated ... this, as a more sophisticated ROM (and RAM) paging protocol ... -
Would things of been better if the NMI was fixed ?I was just wondering, if the NMI bug was fixed say early on in production, so for instance all issue twos (and late issue ones) and beyond had the "f…
... have been accommodated within the 16K ROM.
Geoff has ... demonstrated in the SC01 ROM how the RS232/network ... 't be squeezed into the 16K ROM - well, not without sacrificing ... sophisticated interface), a 'shadow' ROM of some description would have ... -
What's going on during a reset?Always wanted to know this. Why does the screen fill with garbage then white lines on black then just a totally black screen? What is happening?
... /> ; Typically, a Spectrum will have 16K or 48K of RAM and ... /> CP H ; Have we reached ROM - $3F ?
JR NZ,L11DC ... . This is what allows a 16k Speccy to [i]know[/i ... ] that it's a 16k Speccy :)
So of ... -
PZX on WOS ?Is the PZX format accepted on WOS, at least for new production ? (Sorry, if this is wrong section, it looks to me as most suitable for the question.)
... made the changes to the ROM for Microdigital had a better ... much more suitable size than 16K and having them available across ... -
OpenSE BASIC 3.1.1The eagle-eyed will have noticed that [url="http://www.worldofspectrum.org/infoseekid.cgi?id=0027510"]SE BASIC[/url] got an update last week. As a te…
... a real machine with this ROM.[/quote]
If you ... />
This is a universal ROM and works on all the ... the RAMTOP below the top 16K of RAM, use OUT commands ... -
OpenSE BASIC 3.1.1The eagle-eyed will have noticed that [url="http://www.worldofspectrum.org/infoseekid.cgi?id=0027510"]SE BASIC[/url] got an update last week. As a te…
... />
This is a universal ROM and works on all the ... the RAMTOP below the top 16K of RAM, use OUT commands ... -
48K/128K classificationI'm sorry if I've looked in the wrong places and not found it, but what are the rules regarding a game being listed as either: ZX Spectrum 48K ZX Sp…
... /> * works on any model (some 16K software)
* requires an issue ... )
* requires the original 48 ROM (at least one version of ... -
Highres Disciple picturesI couldn't find highres pictures on Google, so I was obliged to make them myself. This one had some repairs: defective PAL chips replaced by GAL's, s…
... RAM). Er kan ook 16k ROM in via poort 31 ... /> Dus je kunt 8k of 16k gebruiken.[/QUOTE]
A 16K rom is supported, you can switch ... or 16K"
I have the DISCiPLE rom ... be important routines in the rom (according to the book ... -
Flash Boards UpdateAs per [URL="http://www.worldofspectrum.org/forums/showthread.php?t=36525"]this thread[/URL] I'm still working on the Issue 2 flash rom boards. I re…
... efforts ;)
The ROM chip is an 8 megabit ... hold eight +3 rom sets, or 32 individual 16k rom (there will be ... a rom launcher in the programmer rom as ... before so you can boot any arbitrary rom) -
Received my divide but stumpedAfternoon guys I am now a proud owner of a complete divide (complete with case).I've worked out how to load my tap files but i am assuming .tzx doesn…
... designed to work with a 16K ROM. Long file names are never ... -
ZXDS 1.0.0Hello, new [URL="http://zxds.raxoft.cz/"]ZXDS release[/URL] is out of the door. Now ZXDS has all the features I have only dreamed about 5 years ago,…
... support ZXSTROM nor embedded Betadisk ROM either.
Loading custom ... ROM from external file instead of ... for each save state by 16K, which is something I can ... -
ZXDS 1.0.0Hello, new [URL="http://zxds.raxoft.cz/"]ZXDS release[/URL] is out of the door. Now ZXDS has all the features I have only dreamed about 5 years ago,…
... support ZXSTROM nor embedded Betadisk ROM either.
... Loading custom ROM from external file instead of ... each save state by 16K, which is something I ... the default 48.ROM with an IF2 ROM would suffice ... to have the right ROM in before restoring a ... -
Spectrum30 Show in Cambridge, 08th-09th September 2012Hello Spectrum-fans, after many months of preparation we now proudly present what will be the biggest Spectrum venue of the last 20 years. We manage…
... : 8 rom cartridges and a lot more (yes, even a 16K Spectrum ... -
Replacing Upper RAM in 48KHi Folks Well, my fun continues :) After sorting the display issues with this machine I found I couldn't load software meant for 48K machines. Havin…
... turn the machine into a 16K machine and then getting the ... page or require the editor ROM (which is quite a lot ... -
80x24 mode (Timex required)Hopefully Martijn will be adding this to the archive soon, but until then grab it here: [url]https://dl.dropbox.com/u/15659782/BASIC80.zip[/url] Th…
... not stored in the top 16K of RAM.[/QUOTE]
ROM charset, in 85 column channel ... screen, but can't use ROM commands, you have to use ... -
Another cause for DivIDE problems on 48K'sThe last months some topics were opened to discuss problems with 48K ZX Spectrums and DivIDE. Sofar we found: - Bad Z80's because of poor fanout (si…
... Just tried to read the ROM contents with my universal programmer ... any of the original Spectrum ROM's (tried about 8 ... ).[/QUOTE]
The original ROM expects a LOW on pin ... .
Reading the orig ROM out as 32K or 64K ... contents in one of the 16K blocks. -
Switching 48/128 modes within a BASIC programI'm not sure what use this would be; ie. being able to switch between 48k and 128k modes and back again from within a continuously running BASIC prog…
... et al. for the various ROM disassemblies which were invaluable in ... ;STMT-RET (+2A/+3/+3e ROM.1)
push hl
cp 191
ret z ;16k/48k
bit 4,(iy ... ;address of $FF in BASIC ROM, for report "0 OK"
Switching 48/128 modes within a BASIC programI'm not sure what use this would be; ie. being able to switch between 48k and 128k modes and back again from within a continuously running BASIC prog…
... ;STMT-RET (+2A/+3/+3e ROM.1)
push hl
cp 191
ret z ;16k/48k
ld a,(iy ... ;address of $FF in BASIC ROM, for report "0 OK"
ROM-elHi, I have a bunch of [URL="http://store.go4retro.com/products/ROM%252del-23128%7B47%7D23256-FLASH-ROM-Replacement.html"]these[/URL]. They are 23128…
... transfer new ROM image from PC to ZX RAM (only 16K) and ... write it directly to ZX ROM. Would save ...ROM-elHi, I have a bunch of [URL="http://store.go4retro.com/products/ROM%252del-23128%7B47%7D23256-FLASH-ROM-Replacement.html"]these[/URL]. They are 23128…
... be using this as a 16k rom you don't want to ... you A0-A13 on the rom socket.
If you ...
