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Spectrum +3 suspected memory faultHi, I've been using my +3 for the first time in a while and found that some games have problems with the display becoming corrupted and sometimes cr…
[QUOTE=Winston;405672]There is a 128K memory testing program, I'd suggest you search for it.....[/QUOTE]
So, the test mode, does not 'completely' test the RAM?
Chris -
Announcing: The +2A/+3 FLASH ROM adapter boardAs I've mentioned in a couple of other threads, this project is coming along quite well now, so I thought I'd post some details up here. I've built …
... any ports at all... the bank selection and write protect switching is ... -
Announcing: The +2A/+3 FLASH ROM adapter boardAs I've mentioned in a couple of other threads, this project is coming along quite well now, so I thought I'd post some details up here. I've built …
... any ports at all... the bank selection and write protect switching is ... - all you need for basic bank switching on an IO port ... -
Spectrum +3 suspected memory faultHi, I've been using my +3 for the first time in a while and found that some games have problems with the display becoming corrupted and sometimes cr…
Dunno if this thread may be of use to you:
[URL="http://www.worldofspectrum.org/forums/showthread.php?t=24467&highlight=128k+memory+test"]128 Memory test[/URL] -
Usr 0I have noted there are some games / applications / demos which have to be loaded in USR 0 mode on a 128K Machine ("Randomize USR 0" in 128K BASIC the…
... can still access the full 128K memory using OUT instructions. Normally, ... some extra housekeeping to tell 128K Basic what's going ... ROM doesn't know about 128K memory paging, you have full ... Basic from the menu, 128K memory paging is completely disabled until ... -
128k musicThis has probably been asked before but I'm going to ask again (just because I can :razz: ) I was playing OutRun2sp on my Xbox360 the other night an…
The 128K memory and the sound chip are ... to check whether there's 128K memory or an AY chip present ... -
128k musicThis has probably been asked before but I'm going to ask again (just because I can :razz: ) I was playing OutRun2sp on my Xbox360 the other night an…
[QUOTE=gasman;414652]The 128K memory and the sound chip are ... to check whether there's 128K memory or an AY chip present ... the music fits in 48K memory (mostly it's easy, like ... -
Double Dragon 128k - The graphicsAs you are all probably aware, I tried gathering a team of people together a few years back to make a totally re-programmed version of Double Dragon …
... be packed somewhere in slow bank, while gfx of tiles will ... completely different place in another memory bank, probably without compression. -
48K -128K upgradeHas anybody ever made, or is it possible to make an upgrade module for a 48K spectrum that will let you operate it like a 128K Spectrum, and back aga…
... that my Divide+ has no 128K functionality anyway, on the face ... , but if it did have 128K facility it would be a ... list:
DivIDE+, with 128K upgrade facility built in for ... not provide the Spectrum with 128K memory, just the 128 Editor and ... -
48K -128K upgradeHas anybody ever made, or is it possible to make an upgrade module for a 48K spectrum that will let you operate it like a 128K Spectrum, and back aga…
... not provide the Spectrum with 128K memory, just the 128 Editor and ... -
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 …
... the Sam, either 48K or 128K ones.
... br />
Tons of 128K games were hacked to run ... /512K SAM with the 128K memory paging code modified so ... no external memory was needed by the ... in fact the 1MB external memory wasn't even out then ... -
Games only possible in 128K mode?In the thread: [url]http://www.worldofspectrum.org/forums/showthread.php?t=30145[/url] the discussion of 128K only games comes up, and it made me w…
... ]
I mean, the 128K memory could have been used to ... technique ever used in any 128K games?
[/QUOTE]
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[QUOTE]
The 128K also intoruced screen flipping, which ... />
basically, 128k offers ay sound, more memory with a bit ... -
Message to all programmersHello folks, more and more programmers in the recent time are using special loading routines for their Homebrew-Software. This makes their game runn…
... how the various ROMs use memory bank 7 (the scratch-pad)? I ... -
SpecOS progressOk, As you can all see, I'm back - and I've been working away on SpecOS for a while now. There's a few videos, which you can see on my blog: [url]h…
... - should be easy enough, the memory bank handler can already do this ... for random chunks of memory, so applying it to the ... -
48K Speccy Repair Log.Some people may know my love for writing up my repairs of arcade PCBs on various forums so thought I would do the same for this little fella. Had th…
... chips to implement the upper memory bank (the last 32KBytes of address ... machine has sockets on upper memory chips, two multiplexers, the 74LS00 ... written to test the low memory bank. It's a very simple ... stop the CPU and see memory contents.
The ... -
48K Speccy Repair Log.Some people may know my love for writing up my repairs of arcade PCBs on various forums so thought I would do the same for this little fella. Had th…
... written to test the low memory bank. It's a very simple ... -
ANN: EsxDos 0.73 released (third party - not mine)Papaya Dezign have finally released their firmware/OS for the DivIDE interface. Go get it from [url]http://www.esxdos.org/files/esxdos073.zip[/url]…
... =ddw;471385]I use Fatware 128k modified by Velesoft on my ... into usr 0 mode, where 128K memory paging is still active, and ... make spurious writes to the memory paging register.
To ... -
SpecOS progressOk, As you can all see, I'm back - and I've been working away on SpecOS for a while now. There's a few videos, which you can see on my blog: [url]h…
... default font is actually a memory bank. I've not added support ... for loading memory banks or assigning fonts yet ... -
SpecOS progressOk, As you can all see, I'm back - and I've been working away on SpecOS for a while now. There's a few videos, which you can see on my blog: [url]h…
... default font is actually a memory bank. I've not added support ... for loading memory banks or assigning fonts yet ... -
Help! Reverse engineering a Spectrum game[deleted]
...
08 - 48K/128K detection
09 - 128K memory management
10 - Sprite ... -
zx spectrum +2 troubleshootingHi There I am new here and I need some advise as to where to look for issues on my zx spectrum +2 it was working fine this morning .. then while pl…
... the total amount of memory for that bank.
On the ... stored in the non contended memory bank. Pages 1,3,5 and ... are stored in the contended memory bank.
So, in the ... address range of all memory chips of the bank the page belongs ... -
The Programmers Development System (PDS)Hi everybody, I recall this system has been mentioned several times on WoS forums. Last time was, I think, when those sources from Maz Spork (Buggy …
... of a Gameboy ROM\RAM memory bank. Obviously the FFh padding is ... -
Spectrum 128K RS232 to PC serial cableIf you have read some of my recent posts then you will know that I am eager to link my Spectrum +3 to a PC. This will be done by wiring a standard PC…
... that communicates with the Spectrum 128K. I have finished the run ... to allow access to the 128K memory banks. The Spectrum link occupies ... 256 BYTES of the Z80 memory map. It is impossible for ... will upload the entire Z80 memory map:
zx232 /u ... -
VIC 20 on the SpectrumThe original "20 Commodes" program released for CSSCGC 2008 has been improved and now has its own entry in WoS. The improved code has been sitting on…
... A LOT of them into 128k Memory ;-)
Edit: A few ... -
Transferring games into MicrodriveLast week a big pack of empty microdrive cartridges arrived, and now I'm ready to playing with my little microdrive equipped speccy. One of my aim w…
... 'm not sure if 128k models are capable of ... micro-drives needing some extra memory, I might be wrong ... able to snapshot the entire 128K memory map.
I ... (182 BYTES) but the 128K model uses 23296 to 23733 ... able to snapshot the memory to disc and create ... -
New tool: ZXBOOT.EXE[B]ASM[/B] is proud to present the first release of ZXBOOT.EXE: [url]http://www.4shared.com/file/NP-FVOSf/zxboot__beta_.html[/url] ZXBOOT is a comma…
... a warning message when the memory safety limit is exceeded. ... requires one BYTE of memory to be added to ... d to disable memory paging for compatibility issues on 128K machines.
/d - Disable 128K memory paging.
/f - Forced +3 ... -
Platformer BAS file?Does anyone have an example of a platformer in BASIC? Specifically one that uses drawn sprites, etc.
... an abstraction on top of 128K memory paging to make it friendlier ... having to reference them by memory address and keep track of ... which memory page is paged in and ... -
The most unique game loaderFor me it has to be Technician Ted, when the stripes give way to walking men and a timer.
... . And it runs in contended memory. Thats rare as loaders usually ... all its multiload parts into 128k memory at the initial loading phase ...
