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New project: CargandoLeches. Ultraloads with ROMHi This project has started months ago, between decicoder, macleod and me. Uses the best modulation of k7zx (throwing shavings). But this ultraloa…
... that allows RAM in lower memory (so it works by emulating ... 16kB ram page in external DIVIDE PLUS memory 512kB.
If you ... -
MB02 Ramdrive issues - can anyone help?I've upgraded an MB02 to 512KB memory. I'm trying to create a ramdrive to check if the 512KB is functioning correctly. First I'm setting up a ramdri…
... upgraded an MB02 to 512KB memory.
I'm trying to ... .
You can also upgrade MB02 rom to 512kB (FLASH ... -
3D Deathchase on the Commodore 643D Deathchase has been ported to the C64, at least according to Micro-Mart. According to this week's MM, the port is called Hell Racer, and here's a …
... , yet hampered by less memory? Surely if Commodore's ... from not using an external colour RAM like the ... It was hampered with less memory because it was meant ... C16 have literally 16k of memory? If so, then ... large percentage of the memory, leaving little space for ... -
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) …
...
To page your memory, intercept the M1 cycle at ... you can activate your memory at the leading edge ... cycle and therefore your memory can supply the instruction ... recommended to use an external P-channel MOSFET or ... to 1 when your memory is paged in). This ... -
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) …
... ;617766]
To page your memory, intercept the M1 cycle at ... the address to the
memory has had time to stabilize ... 's recommended to use an external P-channel MOSFET or PNP ... -
Help pleeease "Proving Emulator OpCode flags are correct"So I had a cunning plan... I wanted to write a test harness for Emulators that could "prove" that all opcode flags were correct. I wanted something m…
... poking the value in three memory addresses takes 6 seconds. Multiply ... . There are bound to be external factors which [I]can [/I ... a while...
The memory between 65024 and 65535 will ... -
The new Superfo cloneHi In the spanish forum speccy.org some guys and me have optimized the superfo clon to have less ICs. The actual design has 39 ICs versus the 45 ICs…
... ?.. Mouse support?... USB support (Mouse, Memory Sticks - a la ZX Matrix ... it's done) and then upgrade capabilities, maintaining the original PCB ... -
The most powerful 8-bit machine, and CPU?Further to the discussion in: [url]http://www.worldofspectrum.org/forums/newreply.php?do=newreply&p=621787[/url] What actually is the best 8-bit ma…
... (in other words, instruction memory and data memory are completely separate, and ... possible to load programs from external storage as is possible with ... -
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 …
... large dictionaries require large memory and supporting quick tokenizers ... One last caveat :- bankswitched memory is hard to deal with ... with access to unlimited bankswitched memory.[/QUOTE]
... limitation. Even with unlimited external store, you've still ... -
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 …
... 625237]One last caveat :- bankswitched memory is hard to deal with ... not easy like a flat memory model. The hard 64k limit ... bankswitched memory.[/QUOTE]
[QUOTE=aowen;625313]Even with unlimited external ... the need to think about memory as we do when ... -
Internal ROM expansionHas anybody designed a multiple-ROM interface that plugs into the internal ROM socket instead of plugging onto the edge connector? It would be useful…
... ). Also is implement DivIDE memory paginga and MB02+ memory paging (true allram ... external devices. PROFI INTERFACE is full reprogrammable from PC via cable = memory ... -
In Java for ZXHi All I am glad to notify you that I have opened the sources of my J2Z80 translator (0.1 version) which allows to use Java toolchain to generate Z8…
... something else? What about dynamic memory, is it allocated top-down ... memory area? Is it possible for a compiled program to use external ... , and how can it reserve memory areas for them? What about ... -
In Java for ZXHi All I am glad to notify you that I have opened the sources of my J2Z80 translator (0.1 version) which allows to use Java toolchain to generate Z8…
... something else? What about dynamic memory, is it allocated top-down ... memory area? Is it possible for a compiled program to use external ... , and how can it reserve memory areas for them? What about ... -
ESXDOS v0.8.0 released (with NMI Browser)Hello, To celebrate the speccy's 30th birthday, here's the latest version of ESXDOS for DivIDE users. The full changelog is too long to post here, s…
... sound down when using an external MIDI device). The SPECTRUM command ... doesn't have to do memory paging in odrer to tokenize ... -
ESXDOS v0.8.0 released (with NMI Browser)Hello, To celebrate the speccy's 30th birthday, here's the latest version of ESXDOS for DivIDE users. The full changelog is too long to post here, s…
... br />
well, programming external command for esxdos is quite ... easy task. external program is binary file, ... demand, as all external commands shares the same memory area.
... variables and expressions, as external command is executed from ... -
Help with a Moded Xbox (original) I think?Help! I have purchased an Xbox crystal (Boxed) off Ebay and upon receiving it I noticed it had been moded well I say moded it has three switches s…
... executer mod chip with an external switch (hence the led's ... a chip,but if my memory serves me correctly them chips ... -
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…
... ;640452]A link to 128K upgrade of 16K, please.
I ... thing about the 'upgrade' is it's an external plug-in, so ... -
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…
... 48K. I can remove upper memory and use it to repair ... the lower memory and then use the upgrade to 128K (make ... 128k software works with this upgrade and what does not? -
T-States?Can anyone point me to any good reading (or summarise) that will explain exactly what a tstate is? At the moment for me, tstates are a useful gauge …
... tasks like read to memory, write to memory, acknowledge interrupt, etc, are ... hardware designers as external hardware has to recognize when memory is read ... -
Car doors, Windows (Microsoft) incompatibilities, and other ponderablesJust some things I've been wondering about recently.. 1) Following the death of Eric Sykes (RIP), I downloaded and re-watched (the very funny) The P…
... Sim City. It frees some memory and then later attempts to ... ' got chance to reuse the memory and thus the bug was ... this and the memory manager secretly keeps the memory around after the ... that applications need as versions upgrade and there is a comprehensive ... -
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…
... -Res mode, AY sound chip, memory banks, new commands... way ahead ... -spectrum though, even with an upgrade to the Spectrum SE prototype ... -
Stealth AllRAM SpectrumHaving just received a couple of new keyboard membranes to fix a couple of machines with, the thought crossed me that I should do a special project w…
... load easy select number of memory page with rom. In rom ... writeprotect can be active MB02 memory mode (512kB flash eeprom + 512kB ... rom, then can disable memory access for all external devices (PROFI set ... and ignore ROMCS line from external devices) -
Issue 2 Failed 48k to 128k upgradeI have been trying to upgrade my Issue 2 with the help of Velesoft, using this schematic; [IMG]http://i764.photobucket.com/albums/xx284/arioch1973/4…
... having from the days when memory & turbo upgrades where popular ... -working parts used in the upgrade.
Also fixed a ... -
Something that just occured to me (Windows 8 related)Even though personally I probably won't be putting Windows 8 on any of my PCs, as it offers no real advantage for me, I have to keep my hand in with …
... faster, uses less boot-up memory, runs less services, etc.
external hard-drive they run concurrently ... so that the external hard drive is constantly having ... -
Average age of a Spectrum fanHi! I'm wondering what's the average age of us, readers of this forum. I'm 29 and started playing and programming on the Spectrum when I was 13 (infl…
... there... :-D My very first memory is of me sat in ... next year I got a upgrade the +3!!!!! I was the ... -
Dedicated Spectrum Emulation Machine Based on Raspberry PiI've mentioned this in another thread, so I thought I'd give it a thread of its own. I've wanted to build a dedicated Spectrum emulator for a long t…
... HDMI only.
External power supply with Spectrum-type ... unnecessary, and that an external adaptor was just one more ... mechanical switches, like those upgrade keyboards that were available for ... wrong feel.
External usb ports; why bother? :D ... -
Over clocking cpu desktop pc.Is it easy? any good online guides? is it worth doing?
... mentioned is the amount of memory used by the c*ap ... /> Put another way you could upgrade a Spectrum to 16gig of ... -
Spectrum 16K Issue 3Hi! I just received a Spectrum 16K, which turns out to be an Issue 3. Is it really that rare? If not, I?d like to upgrade it to 48K. There are 12 em…
... memory expansion.
[QUOTE]If not, I?d like to upgrade ... -
INTERFACE 2 - light versionSmall interface (adapter) compatible with INTERFACE 2. Contain only slot for IF2 cartridges and reset button (for rubber speccy). Not contain joystic…
... MB02+ memory, cartridge with 48kB upgrade (for ZX16), cartridge with 128kB upgrade (for ... -
The new Superfo cloneHi In the spanish forum speccy.org some guys and me have optimized the superfo clon to have less ICs. The actual design has 39 ICs versus the 45 ICs…
... /> 000xxxxx Kempston
xxxxxx0x AY/Memory Paging
xxx0xxxx ZXCF
0001xx1x Kempston
xxx1xx0x AY/Memory Paging
xxx0xx1x ZXCF
External Divide will possible connect only ...
