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How to contend memoryHow has this been achieved, electronically? Is there a "memory ready"-line for each bank, or something?
How has this been achieved, electronically? Is there a "memory ready"-line for each bank, or something? -
Memory and BasicQuestions 1. How much memory is available for Basic Progs? 2. How do I check how much is left? 3. How much memory does an array take up?
Questions
1. How much memory is available for Basic Progs?
2. How do I check how much is left?
3. How much memory does an array take up? -
Playing 128k music with z88dk ?Hi, I'm amazed how easy seems to make things with z88dk to build spectrum asm programs. After my first approach I miss some way to play 128k music, s…
... seems to make things with z88dk to build spectrum asm programs ... -
z88dk Help neededI'm starting my tests with z88dk from a very simple example from a tutorial in speccy.org. It works fine but when I make the smallest modification t…
... 'm starting my tests with z88dk from a very simple example ... would like to hear from z88dk veterans giving me some advice ... not obvious tips coding with z88dk, maybe you have to set ... -
z88dkHi there, are there any good online-ressorrces (PDF books, tutorials, keyword lists with descriptions, *.chm files etc.) to learn small C (z88dk). I …
... etc.) to learn small C (z88dk). I never previously wrote anything ... !
Something like "Learn complete z88dk small C in 5 minutes ... . any hints? How different is Z88dk to Hisoft C (just downloaded ... -
Utility to read/write to memory cards formatted for +3EThis post comes from [url=http://www.worldofspectrum.org/forums/showthread.php?t=25658]this thread[/url]. I've released a small command-line utility…
... read files from a memory card or HDF image ... 3DOS partition inside the memory card or HDF file ... for handling +3E formatted memory cards without having to ... and file name on your memory card / disk image.
memory card /image disk.
... -
Erase part of memory in SPIN?A question for SPIN (or perhaps Spectaculator). If I have a game loaded in memory and would like to erase part of the memory while keeping the rest …
... have a game loaded in memory and would like to erase ... part of the memory while keeping the rest of ... like to erase the screen memory and watch what will happen ... -
Extended memory and SNApshots in emulatorsExist any snapshot fileformat that support extended memory for ZX (clones) ? I see only Z80 fileformat with 48/128 and 256kB(ZS Scorpion 256) support…
... snapshot fileformat that support extended memory for ZX (clones) ? ... but support only 128kB memory and not contain some other ... STEALTH" support save extra memory in Z80 files (contain added ... one file with length = zx memory size(uncompressed raw) + additional ... -
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…
... problem with one of the memory chips used for the extended ... 128K memory. I've tested the first ... way to determine if the memory is at fault, and which ... -
MemoryWhat is the highest memory location on a 16k spectrum ?
What is the highest memory location on a 16k spectrum ? -
Vauge arcade memory type recolection.This has been bugging me for a couple of weeks now, and id considered starting a thread about it several times and decided against it. As i havent ha…
... worked. Is this a fake memory, did it realy exist can ... -
memory chips spectrum +Hi with regards to memory chips the ones in there are tms4116 in the lower memory.there is some on ebay MCM4116BP20 can i mix these with tms ones or …
Hi with regards to memory chips the ones in there are tms4116 in the lower memory.there is some on ebay MCM4116BP20 can i mix these with tms ones or do they all need replacing.or do i have to use tms ones -
128k memory use in multiloadsIs there a way to play golden axe and turtles coin op game on a real spectrum, without having to multiload and just the load the whole game into the …
Is there a way to play golden axe and turtles coin op game on a real spectrum, without having to multiload and just the load the whole game into the memory at once? -
more memoryi dunno if this has been mentioned, apologies if it has (i cant be arsed to search :P) Ive just been reading about the zx81 and it popped into my he…
... speccy? to give it more memory
if i remmeber ... -
Tape I/O in z88dkAccording to the documentation, z88dk appears to have facilities in its spectrum-specific library for tape i/o - [url]http://www.z88dk.org/wiki/doku.…
According to the documentation, z88dk appears to have facilities in ... i/o - [url]http://www.z88dk.org/wiki/doku.php?id ... -
Faked MP3/memory sticks etcI recently bought an MP3 player on Ebay from jolly old China. I suspected it would be fake as it was advertised as a 16gb MP3/MP4 player and cost me …
... I downloaded that tests flash memory and that came back saying ... -
128kB software with incorrect memory pagingI search all ZX software using incorrect memory paging via OUT (253),A. This software must write to port data value with D6=1 for compatibility with …
... all ZX software using incorrect memory paging via OUT (253),A ... use on this computers different memory pages. -
Learning C for z88dkI've never gone much beyond basic, a little bit of z80 assembler, and some Delphi which I had lots of help with. I've forgotten 99% of what I learne…
... the examples that come with z88dk, it's not quite ... tutorials about or planned for z88dk?
I'm ... common or standard keywords in z88dk, with comments in the ... but it seems like z88dk has so much stuff that ... from what is in the z88dk wiki, printf ("\1\32 ... -
Resolution & Memory Question ...Hi, I'm hoping someone with some experience writing an emulator, or a vast knowledge of all things Spectrum can help me answer the following questio…
... information available on how the memory within the system is mapped ... , but where does the graphics memory sit, and what is its ... and what size is the memory available to the user etc ... -
4164 memoryHi all, I'm looking for 4164 memory, probably 4 chips. If you have some you willing to part with for some cash, let me know how much you want for it…
Hi all,
I'm looking for 4164 memory, probably 4 chips. If you have some you willing to part with for some cash, let me know how much you want for it + postage.
Cheers. -
memoryprobably a dumb question i have 1gb memory in my PC, if i buy another 1gb memory (the same one i bought before.) and plug it into the other slot, do…
...
i have 1gb memory in my PC, if i ... buy another 1gb memory (the same one i bought ... -
+2A extended memory map & ULA bug?The [URL="http://www.worldofspectrum.org/faq/reference/128kreference.htm"]128K reference page[/URL] says: [quote]The ULA bug which causes snow when I…
... set to point to contended memory still occurs, and also appears ... set to point to contended memory.[/quote]
Will the ... , with RAM bank 4 (contended memory) in 0x0000-0x3FFF, and place ... -
z88dk and kempston problemHi, I was working on a new project using z88dk, but when I was testing I found that I got complete strange values if I pressed UP and FIRE simultane…
... on a new project using z88dk, but when I was testing ... at [url]http://z88dk.cvs.sourceforge.net/viewvc/z88dk/z88dk/libsrc/input/spectrum ... -
Embedding external code in Z88DK projects (Beepola related)Hi all, I've been doing a few things in Z88DK, but I was wondering how I could link binary data compiled separately into my projects. Specifically I…
... doing a few things in Z88DK, but I was wondering how ... -
Memory mapping: Pentagon compatibility?I'm writing something that will rely heavily on the Spectrum's ability to switch screen buffers in hardware (port 0x7FFD). The original Spectrum 128K…
... 0x7FFD). The original Spectrum 128K memory map (with only one ... 0x1FFD on the Pentagon switches memory banks as described in [ ... Second category of expansion of memory over 128k.
... Third category of expansion of memory over 128k.[/quote]
< ... -
Using the stack to copy memory blocksA [b]PUSH[/b] and a [b]POP[/b] instruction together take less time than two [b]LDI[/b], so long [b]POP/PUSH[/b] sequences are sometimes used to copy …
... , this requires several kilobytes of memory - it would be much less ... -
Average PC Memory size increasing by 48K every half hourAs I'm absolutely sure everybody here is aware, Moore's law states that the number of transisters in a device will double on average every 2 years. …
... />
As average memory increases, price per megabyte usually ... fractionally, the amount of memory increased in one year would ... Law.
[*]Daily average memory increase == 901,943,132 / ... For Smartphones, the average memory is around 256MB now (48K ... -
Spectrum lost upper memoryHi again, I have a Rubber key Spectrum(issue 4S) which lost it's whole upper memory. It's worked okay, but i forgot it on over last night. My son wa…
... lost it's whole upper memory. It's worked okay, but ... Spectrum which had also upper memory problems. So i wrote PRINT ... 32767. This mean that upper memory is off. I loaded a ... .
Where is my upper memory? -
Memory upgradeHi! I bought a 16K rubber key Spectrum. It's said in the box and memory test program also said it's 16K machine. Strange thing is that there is yell…
... said in the box and memory test program also said it ... (so no soldering needed) for memory upgrade. There is also 4 ...
