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Spectrum 48K - upper memory MIAI have recently acquired a ZX Spectrum which, according to the sticker on the bottom, should be a 48K model. It's an Issue 3 board, with upper memory…
... Issue 3 board, with upper memory chips (8xTI4532) and supporting logic ... does not see the extended memory. PRINT PEEK 23732 + PEEK 23733 ... -
Memory move routine?Hi Folks, I have been searching for the thread that covers the memory move routine that uses a$=b$ via DEF FN. I thought it was written by Battle B…
... the thread that covers the memory move routine that uses a ... -
Poking a string to memory...I'm looking to poke a string of characters including colour control codes to memory, I'm currently doing it by hand: 16,2,19,1,22,1,1,144 That equa…
... including colour control codes to memory, I'm currently doing it ... -
ZX81 Internal Memory UpgradeAnyone here ever done it? Im looking to add 16k of internal memory, pretty sure I know how to do it, just what parts do I need? (and where to get t…
Anyone here ever done it? Im looking to add 16k of internal memory, pretty sure I know how to do it, just what parts do I need? (and where to get them?) -
Difficult to find upper RAM fault.I've recently repaired an issue 3B 48K Spectrum that had a tricky to diagnose upper RAM fault, so I thought I'd post a report of what I found here. …
... First, the section named RAM-FILL loops over all possible RAM ... starts again, testing the next memory location. Otherwise, the loop ... as written by the RAM-FILL routine). Because the second DEC ... manage to capture the RAM-FILL routine passing from lower ... -
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) …
... very fast. The time available between M1 goes
low and memory ... -
Inefficient code in ROM, from ram-check to RAM-DONEHere is the inefficient code: [CODE] ;; ram-check L11DA: LD H,D ; Transfer the top value to the HL register LD L,E …
... /> ;; RAM-FILL
L11DC: LD (HL),$02 ; Load memory with $02 ... br /> DEC HL ; Decrement memory address.
CP H ... /> ;; RAM-FILL
L11DA: LD (HL),$01 ; Load memory with $01 ... -
What if there was no memory or space limitation?What if there was no memory or space limitation? We've had topics about the limitations of the Speccy's hardware, topics where we discussed how good …
... a low amount of memory, how some programmers showed ... had an extreme amount of memory, paginated, at the ... if the available free memory was not a problem, ... but strongly believe that if memory wasn't a problem, ... a virtual amount of "memory" at our disposal. How ... -
Spectrum 48K - upper memory problemsHi I have a ZX Spectrum 48K issue 3B which does not see upper memory. On PRINT PEEK 23732+256*PEEK 23733 i got result 32767. POKE 32768,85 and PRINT …
... which does not see upper memory.
On PRINT PEEK 23732 ... -
Fast n Furious and Interceptor in-game screenshotsare not consistent with the ones displayed in their own entries (not the compilations). As far as I can see, the screenshots displayed in the compil…
... .worldofspectrum.org/infoseek.cgi?regexp=^Fast+%27n%27+Furious+%2b+Thunderceptor ... -
Oooyaah! This came from nowhere......There's a new console in the works, and it's already massively popular, despite not existing... [url]http://www.kickstarter.com/projects/ouya/ouya-a…
... on Kickstarter. To refresh your memory, the $99 system (which was ... : If you thought that was fast, you'd be right: Kickstarter ... -
Attribute-based 3D?I remember seeing some demos where an attribute-based map was explored in some sort of flying mode. No idea if the whole thing was pre-calculated or …
... the Speccy can handle 3D fast enough by using attributes instead ... terms of speed, math and memory usage.
Imagine a ... -
Interview with Steve Wetherill (Odin)Hi you all!!! Here is the interview done to STEVE WETHERILL (Nodes of Yesod, Robin of The Wood, Arc of Yesod, Heartland... ?Odin!) and published at […
... get the game to run fast enough on the CPC and ... fit in memory, and that the update rate was fast enough. I ... -
TESTROM3 - utility/rom for test your ZXHere is TESTROM3 utility as 16kB ROM file + flasher for install this rom to divide eeprom (or mapram mode). Work also on ZX Spectrum without ROM and …
... - utility for test your ZX memory
==========================================
... br /> Test only first videoram memory (16384-32767).
At end ... /> =============
Test only fast ram memory (32768-65535). During test show ... -
Some more PC questions1. Since we ended up discussing Linux in another thread, it made me wonder is Linux really, objectively faster than Windows? I mean, can you run, say…
... Linux when it comes to memory? It has to be more ... 4GB), but to be fair, memory is so cheap now that ... the answer to this could fill pages of text and barely ... -
WIP: ULAPlus hardware implementationThis aims to be an "almost" plug-in replacement for the Sinclair ULA chip fitted in Spectrum 16K/48K/Plus machines. It comes in a form of a small PC…
... , bigger than the FPGA)
Fast SRAM: 2 EUR
[B ... , and enough fast block RAM to implement an extra memory page (if ... /> Despite that, the process is fast and the result is not ... -
How much memory on sprites, maps etc.I've been tinkering with shifting & pre-shifting sprites recently, but as I haven't had that much experience with Z80 assembly I sometimes find it ha…
... too much" as far as memory allocation is concerned.
memory for different aspects of a ... -
Spectranet hard disk moduleI figure it's about time for a public announcement now that people are starting to get their hands on spectranets. Some of you will be aware that fo…
... the memory correctly etc but simply returning so that people can "fill ... -
Multicolor/RGB3/3color fast low flicker software available?After giving myself a near migraine looking at 3 colour image (3 frames, red, green blue) anim gifs in a test version of image to zx spec I'd like to…
... that can display these images fast enough along the lines of ... -
PCL / PS driver questionsDon't know if this ever happened to any of you. I've been searching but I've yet to find a practical, permanent solution. Let's say I have a 1.4M P…
... give me an "out of memory" message and refuse to ... s already stored in its memory and then resume data ... up printing and clears its memory without any error, as ... use PCL it's extremely fast but the print queue ... does it use so much memory? Why does it create ... -
Everdrive 64 (N64 backup device)Since I can't get N64 emulation to work right (unlike every other machine I try to emulate, why is N64 emulation still so riddled with incompatibilit…
... that encodes them across uneven memory addresses (or page boundaries, or ... listed, as they sell out fast). For more information see:
More memoryHi all... can anyone help, Is it possible to get more memory for basic pref' in Basin.... 40 odd k is just not enough !
Hi all... can anyone help,
Is it possible to get more memory for basic
pref' in Basin.... 40 odd k is just not enough !A Memory of Light (Wheel of Time Book 14) (Final Book)I started reading the Wheel of Time series 17 years ago, when one of my friends in school was reading the first five books in the series. I remember…
... ]http://www.amazon.co.uk/Memory-Of-Light-Wheel-Time/dp ...Interview with Clive Townsend (Saboteur)Here you have at [URL="http://www.elmundodelspectrum.com"]www.elmundodelspectrum.com[/URL] this exclusive interview with Clive Townsend. Don?t forget…
... get the backgrouds to scroll fast enough. Rob White suggested I ... an actual Spectrum. So in memory I had the source code ... of speed, graphical quality, and memory constraints. The trick is to ...How to check the whole memory on a +2 greyHi everybody!!! I suspect that i have a bad memory chip on my +2 Grey. Does anybody know if exist any utility to check the whole memory? Thanks a …
Hi everybody!!!
I suspect that i have a bad memory chip on my +2 Grey.
Does anybody know if exist any utility to check the whole memory?
Thanks a lot!!!MB02+ memory tester[url]http://velesoft.speccy.cz/other/mb02-ram-tester.zip[/url] This is tester of sram 512kB memory in MB02+ interface. Data in tested memory are not…
[url]http://velesoft.speccy.cz/other/mb02-ram-tester.zip[/url]
This is tester of sram 512kB memory in MB02+ interface. Data in tested memory are not erased.Zero 0.5 ReleasedAfter a bit of a hiatus, the next update of Zero is now available [URL="www.ramtop.wordpress.com"]here[/URL]. Feedback and bug-reports appreciated! …
... specific values read/write from memory, ports etc.
+ Monitor can ... tape file, when doing a Fast Load.
- Fixed EI prefixed ... view to reflect the latest memory state.
- Fixed incorrect emulation ...Hidden message in Down To EarthJust found this in the Down To Earth code. I like reading these old messages left behind by programmers. [code]WELCOME TO ORIFICE Credits Darren B…
... . It's
really fast.
-How fast ?
140000 ... ;
effectively takes up no memory.
Why is Orifice ...
