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Toastrack/Grey +2 physical memory layoutI'm looking to extend the functionality of the test ROM used with Winston's diagnostic board to also properly test the RAM of toastrack and grey 128K…
... clear to me how the memory is physically laid out.
memory.
Could anyone fill ... -
USB Memory stick testA friend of mine is selling some USB memory sticks that he claims are 500gb for ?35! I said that can't be right, so he's given me one to try. When I …
... mine is selling some USB memory sticks that he claims are ... . I thought you "lost" more memory than that with new drives ... (I'm also aware that memory is getting smaller these days ... Sony have developed a 2TB memory card!).
All these ... -
What to use to create a map of the place where I live?I would like to create a map of the area where I live and, ideally, be able to explore it with a game character or at least be able to explore it usi…
... it on the Speccy. Custom maps for a game, even if ... store an isometric map in memory and what routine to use ... -
Loading data from 128 memoryAfter all these years I have come across the LOAD! in 128 basic for storing/restoring data in the 128 memory. How do I go about implementing this in…
After all these years I have come across the LOAD! in 128 basic for storing/restoring data in the 128 memory.
How do I go about implementing this in machine code?
Thanks in advance... -
WOM Memory Signetics 25120 Series 9046NHello, here: [url]http://www.ti.com/ww/en/bobpease/assets/www-national-com_rap.pdf[/url] at pages 128 und 129 you can find information about a very …
... information about a very usefull memory that unfortunately is not (more ... -
Timex contended memory timings, the TS2068 kludge board and EXROM at $4000 - $7FFFI haven't seen this documented anywhere yet so I thought I'd share my findings. I've been investigating contended memory timings on the Timex Sinclai…
... 've been investigating contended memory timings on the Timex Sinclair ... Timex SCLD still applies memory contention at these locations ... 4000 - $7FFF making a memory access at each location during ... in port F4 when applying memory contention; contention is applied ... -
Read Data from memoryHi there. Not been on this scene for a long time. Does anyone know how to do a routine to read data from memory(peek..etc) rather than using lines of…
... routine to read data from memory(peek..etc) rather than using ... -
48k memory dump to 128k???Having problems getting a 48k snapshot to load into 128k mode using ZX Spin. Tried saving 48k memory as a binary file and loading it back in 128k mo…
... .
Tried saving 48k memory as a binary file and ... -
displaying all memory activity in a screenDunno why I keep thinking about this, but here goes Is it easy enough to add a screen to an emulator that shows every memory address' activity.... …
... an emulator that shows every memory address' activity....
Im ... the activity on the dispkay memory?
Does all that ... of every bit in speccy memory
Thst leaves plenty of ... -
Nether Earth ZS Edition`99. 11 alternative maps.Hello, people! I searched this forum but did not find any mention of "Nether Earth ZS Edition` 99. " Incidentally, it deserves attention! It contai…
... attention! It contains 11 alternative maps. Just in it changed some ... -
Repton ManiaHi all, I am the creator, and look after, the Repton Resource Page ([url]www.reptonresourcepage.co.uk[/url]). For the site, I have written a freely …
... are referred to within the maps. There is also the technical ... size)
0x04900 0x5B00 Repton Maps (12 off at 0x400 size ... Lookup table into the screen memory
0x0A826 0xD60A Passwords - 10 ... )
0x0E800 0x5B00 Repton 2 maps, each chr is packed into ... -
Better arrangement for video memory?While doing some documentation work for the ZX-Uno project, I compared the advantages of the weird layout of the ZX Spectrum against a linear layout.…
... of character in video memory
ld b ... Y0
Memory address (ZX Spectrum arrangement)
Memory address (C64 arrangement)
... byte of the display memory address, we increment ... high byte of the video memory address)
Android memory questionErm, I was sure there was already a thread about this before but I couldn't find it, perhaps it's deleted or something. So I'm asking this again. I …
... ), but it fills up its memory pretty fast (and gets real ... the SD card help reduce memory usage?
Thanks in ...Banked memory running slower?I've just compiled a TAP which includes bank6, it loads ok, but the routines that are paged in run slightly slower. The Z80 snapshot has no such pro…
... such problems, the paged in memory behaves itself as it should ...48K Upper memory issues?Having more issues with the 48K spectrum I just fixed that had the black screen in this thread [URL="http://www.worldofspectrum.org/forums/showthread…
... end.
Ran the memory test
PRINT PEEK 23732 ...AGD memoryHow low has anyone got AGD memory showing but still works without crashing or errors. My Monty game is showing 30 and will not allow you to open any…
How low has anyone got AGD memory showing but still works without crashing or errors.
My Monty game is showing 30 and will not allow you to open any events to edit. If I add just one letter to any text it crashes big time, full reset.New Game: Escape from Colony 8[I]I can't really tell what happened, when they first attacked our base or where they came from, but Colony 8 is lost. My only chance is to get to ha…
... animations are cool, but the maps are quite expensive. Also Z88DK ... basically: I run out of memory and I had to cut ...ZX-Paintbrush 2.6 publishedDear readers, today I released a new version 2.6 of ZX-Paintbrush. Before I will go into the details of all changes I made, first let me say thanks …
... .
[*]Added map editing feature. Maps are normal screens with overlayed ... on that screen, which saves memory for storing and increases the ...Spectrum +2a memoryHi all, Happy New Year. A quick question, I have a Spectrum +2a that I am seeing a very intermittent fault, once every 20 - 30 power ups. I plug…
... to fail the lower 16K memory test.
Does anyone ...ZX Evolution -- contended memory and raster emulationFresh bleeding update for [url=http://www.nedopc.com/zxevo/zxevo_eng.php]ZX Evolution[/url] [url=https://code.google.com/p/pentevo/source/list]Baseco…
... -- raster and ULA contended memory emulation for original 48k and ... />
1. Contened memory is emulated as described here ... some help with raster/contended memory
Mike & ... valuable insight into contended memory topic and useful discussions.< ...Contended memory and TritoneQuick question regarding contended memory...<div style="font-style: normal;"><br></div><div style="font-style: normal;">I'm testing ideas with Triton…
Quick question regarding contended memory...
I'm testing ideas ... the player code after 0x7fff memory address and the data in ... contended memory, and it doesn't seem ... being run from non contented memory, so I think it actually ...Memory testersHi, Just wondering which software people are using to test the memory in their spectrum. I have been using Zorn's memory tester as described here:…
... are using to test the memory in their spectrum. I have ... been using Zorn's memory tester as described here:
48k Memory MapIs there a link or info anywhere that explains the 48k memory layout? My game uses double buffering and I'm trying to decide where the best memor…
Is there a link or info anywhere that explains the 48k memory layout?
My game uses double buffering and I'm trying to decide where the best memory location should be.Sinclair QL bad memoryI googled around trying to see if there was a resource for this but didn't really find anything specific. I have a QL with the white screen proble…
... screen problem which indicates bad memory, so I plopped a Minerva ... you addresses of the bad memory...Problem is that doesn't ... help me identify which IC memory chip it is. Is there ... " a good chip on each memory chip but the only result ...Recommend-me-do - memory card devicesSo, both myself (with a +3 that has a dodgy drive) and my friend (with a +2) are looking at the various options for loading from memory card. What…
... various options for loading from memory card.
What do ... to find their way onto memory card?No contended memory?Sorry if this is a stupid question. But I'm trying to learn more about the ZX Spectrum. If I had a stock 48k Speccy and I could wave a magic wa…
... magic wand to remove the memory contention, what software would break ...Incredible mapsI love big maps! Booth artistic and technically. For example: http://www.worldofspectrum.org/pub/sinclair/games-maps/s/Shark_2.png http://www.worl…
I love big maps! Booth artistic and technically.
For example:
http://www.worldofspectrum.org/pub/sinclair/games-maps/s/Shark_2.png
http://www.worldofspectrum.org/pub/sinclair/games-maps/w/WhereTimeStoodStill_4.pngBritsoft - Read-Only Memory Publishing"Britsoft" by Read-Only Memory Publishing is their latest book charting the rise and fall of game development in the UK from the early 80s to the end…
"Britsoft" by Read-Only Memory Publishing is their latest book ...48K Memory MapHi, I'm having some trouble understanding the top of the 48K Memory Map. From reading elsewhere I have this as the memory map: 0 to 16383 - …
... the top of the 48K Memory Map.
From ... /> 0 to 16383 - Read Only Memory
16384 to 22527 - Display ... br /> 23755 to 65367 - Available Memory
65368 to 65535 - User ... area '23755 to 65367 - Available Memory'
Also what ...Speed (nano seconds) of memory chips ZX SpectrumThe ZX Spectrum uses 4116 memory for the lower memory, which can be replaced by other sorts or a whole, modern, module, but when searching for 4116 m…
... ZX Spectrum uses 4116 memory for the lower memory, which can be ... but when searching for 4116 memory, what speed in nano seconds ... refreshed, the contents of the memory will get lost? 15ns? ...
Same for the upper memory:
TMS4532-3 Texas Instruments ...
