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IN and OUT in hardware terms... what are 'ports'?Hi all, I understand PEEK and POKE, but have never managed to get my head around IN and OUT. The books all go on about how they read from and wri…
... it either does not change at all (ROM), or, when ... The +D or Multiface ROM cannot simply ask the Spectrum ... together with /IORQ to detect access to this I/ ... of the keyboard, but not the exact row. Similarly, ... , these upper bits are not relevant to our discussion, ... -
Interface 1 - RS232 question.I am thinking about doing some Spectrum stuff based around the RS232 port used on the Interface 1. Has anyone had any joy doing this with an emulator…
... at the point the ROM routine is called to ... ROM routine to complete - much like the way it would detect ... the LOAD routine being called in the ROM, ... this thinking, you would not see direct pin control. ... speed as the Spectrum ROM routine can manage, but ... -
Interface 1 - RS232 question.I am thinking about doing some Spectrum stuff based around the RS232 port used on the Interface 1. Has anyone had any joy doing this with an emulator…
... the ROM routine to complete - much like the way it would detect ... the LOAD routine being called in the ROM, inject ... by this thinking, you would not see direct pin control. You ... /> Possibly for most emulators, but not for Fuse. It simply counts ... -
ZX Spectrum CartridgesI have been thinking of "cloning" ZX Cartridges for a while (case, board and silicon skirt), to be able to make new releases or replace damaged cartr…
... signal, which IF2 socket does not, hence pattern recognition is just ... inputs, like: set bank, disable ROM, activate write mode, etc... using ... m going for is to detect the Z80 instruction address and ... a regular READ address from ROM address space, from a special ... -
ZX Spectrum CartridgesI have been thinking of "cloning" ZX Cartridges for a while (case, board and silicon skirt), to be able to make new releases or replace damaged cartr…
... pattern that is easy to detect in hardware and control in ... pattern.
Read/write ROM addresses with I and R ... write is 3 clock cycles (not counting IO).
Since ... -
ZX Spectrum CartridgesI have been thinking of "cloning" ZX Cartridges for a while (case, board and silicon skirt), to be able to make new releases or replace damaged cartr…
[quote="RMartins;863221"]A - Detect R7 toggle to trigger detection ... to check which value, the ROM typically sets it to)
[/quote]
I'm not sure this assumption is true ... -
ZX Spectrum CartridgesI have been thinking of "cloning" ZX Cartridges for a while (case, board and silicon skirt), to be able to make new releases or replace damaged cartr…
... br />
The problem to detect a REFRESH cycle is that ... />
It's not that easy to detect this behaviour after all ... specific location in RAM or ROM, so that all consecutive bus ... of being very easy to detect (exactly consecutive addresses, signaled ... -
ZX Spectrum CartridgesI have been thinking of "cloning" ZX Cartridges for a while (case, board and silicon skirt), to be able to make new releases or replace damaged cartr…
... flash in it as the "rom", for instance.
[quote ... data bus.
NOTE 2: ROM is usually used for RANDOM ... to somehow detect the refresh reads, and I'm not sure if ... -
ZX Spectrum CartridgesI have been thinking of "cloning" ZX Cartridges for a while (case, board and silicon skirt), to be able to make new releases or replace damaged cartr…
... to somehow detect the refresh reads, and I'm not sure if ... ]
Could it not be avoided by simply not setting I to ... IM mode 1, the ZX ROM default, so I register might ... simple fixed address ist just not secure enough. -
ZX Spectrum CartridgesI have been thinking of "cloning" ZX Cartridges for a while (case, board and silicon skirt), to be able to make new releases or replace damaged cartr…
... , we can use an address not in the cartridge address range ... address like #FFFF (easy to detect, a simple AND will do ... tricky to remain compatible with not fully decoded logic interfaces (joystick ... 's easy to connect to ROM socket signals), so that I ... -
ZX Spectrum CartridgesI have been thinking of "cloning" ZX Cartridges for a while (case, board and silicon skirt), to be able to make new releases or replace damaged cartr…
... in this case the usable ROM is more reduced. With this ... the ones that do not use the Spectrum ROM.
Maybe ... you could do a simple change, to detect ... : I'm assuming that Menu ROM is always included.
This ... -
ZX Spectrum CartridgesI have been thinking of "cloning" ZX Cartridges for a while (case, board and silicon skirt), to be able to make new releases or replace damaged cartr…
... the methods described above are not practical.
So ... a waiting loop between timed ROM page switches.
... />
This would allow to detect if other interfaces are driving ... other interface that replaces ZX ROM like DIV-MMC.
... -
ZX Spectrum CartridgesI have been thinking of "cloning" ZX Cartridges for a while (case, board and silicon skirt), to be able to make new releases or replace damaged cartr…
... you have lots of pageable ROM, you typically don't need ... , some programs might fail to detect the extra memory, depending on ... 's a 128K machine or not.
If they test ... 128K model ROM specific validation, they will fail to detect the extra ... -
ZX Spectrum CartridgesI have been thinking of "cloning" ZX Cartridges for a while (case, board and silicon skirt), to be able to make new releases or replace damaged cartr…
... some programs might fail to detect the extra memory, depending on ... 's a 128K machine or not.
If they ... 128K model ROM specific validation, they will fail to detect the extra ... quickly from ROM cartridge then I guess additional RAM is not needed ... -
ZX Spectrum CartridgesI have been thinking of "cloning" ZX Cartridges for a while (case, board and silicon skirt), to be able to make new releases or replace damaged cartr…
... some programs might fail to detect the extra memory, depending on ... 's a 128K machine or not.
If they ... 128K model ROM specific validation, they will fail to detect the extra ... quickly from ROM cartridge then I guess additional RAM is not needed ... -
I'm writing an Operating SystemOkay this might seem like a bait thread, but I am legitamately interested in figuring out how to write a multi-process system for the ZX Spectrum (no…
... information, the relocator might not know if the relocated binary ... form and BSS sections removed (rom model compiles). In both cases ... binary size, not the runtime size, but it can detect overflow of ... patched code. But this is not foolproof (imagine the last ... -
Super Wonder Boy antimultiface[url="http://bizzley.com/"]Bob Pape's book[/url] mentioned that Rob Hylands put Multiface protection in Super Wonder Boy. The program can detect whe…
... this...
- Multiface RAM and ROM can be paged using specific ... that even transfers that do not corrupt the screen must do ... mind that most packers can detect sequences of bytes like that ... -
128K memory bank selection to avoid contention issuesI'm currently developing a game and I'm trying to get my head around the memory contention issues of the various 128K/+2/+2A/+3 spectrum models in or…
... ]here[/url] which suggests checking ROM address 19 which will give ... />
Checking ROM contents to determine model is not a great solution ... use. If you want to detect that a machine uses the ... . It's not perfect because it uses the ROM's interrupt service ... -
ROM emulation in softwareHi, first of all -- I only have shallow / uni knowledge of hardware, electronics, and physics. So forgive me for asking things that are out of that …
... other words the original Hitachi ROM chip was way too powerful ... Spectrum.
142ns is not a problem for an instruction ... possibility to switch and possibly detect a signal every 1 / 41 ... -
Picked up a broken Interface 1...It locks up the Spectrum when an Interface 1 command is issued. Anyone want to have a guess as whether it's the ULA or the ROM or something else c…
Turns out it was the ROM...
After ... desoldering the old ROM, and realizing it's an ... turn off the pin detect when I realized there ... Looking through the hex, not a single value in the ... even if it's not pretty... Makes that dead ... -
DISCOVERY ...Hi, I have just bought a DISCOVERY drive for Spectrum, but i have not the documentation with it... Do you think that i can find it on this "marvelous…
... for Spectrum, but i have not the documentation with it... Do ... 1/2 disks...
If not, do you know someone who ... know how to transfer some "ROM" from this site to Discovery ... -
Shadow of the UnicornI've written a program to run Shadow of the Unicorn on a +2A/+3. Is there anywhere it can be put to be available to anyone wanting to play the game?…
... play the game? It is not quite perfected yet. I need ... work its best with any rom. At the least I can ... -
New WoS CD-ROM Project[url="http://neuro.zensoft.net/woscd/"]http://neuro.zensoft.net/woscd/[/url] I'm about to embark on an ambitious project ... to create new up-to-dat…
... />
- WoS Basic Archive CD-ROM (1 disc) - UKP 5 inc ... ;P
1x CD-ROM incl. Games, Emulators, Remakes & ... also considering a tech CD-ROM, excluding the games, but including ... -
2 days Meeting in Holland 27-04-2002 and 28-04-2002For you who were not there, a short compilation! "Moorhuhn", the addictive internetgame which keeps 1000's of Germans out of work is released for th…
For you who were not there, a short compilation!
< ... be rebuilt with RAM at ROM adresses on the connector to ... /> Rudy Biesma cleaning up Disciple ROM.
a lot of ... -
SPIN Public Beta 0.1b Available for downloadHi all, back again, and as just recently announced on CSS, SPIN has been updated. Here's the post to CSS (or the relevant parts): It's been a bu…
... list of new stuff is not *very* big, but ... /> disk support, it's not 100% complete, but works for ... emulations.
Fixed folders not using the ones you selected ... thanks Neuro, (I'm not sure about it
... it loads and runs the ROM, but not much else.
No ... -
ANNOUCE: Spin Public Beta 0.1d now availableWell, after the overwhelming response to the previous announcement here on WOS Forums, I thought I'd best post that SPIN 0.1d is up. Here's the CSS …
... list of new stuff is not large,
there's quite ... are using the standard ROM loader and ROM timings.
Fixed various ... a pause (user requested or not, such as
when the ... open). I know why, just not how to fix.
Loads ... -
ROM cartridgeI forgot, I'm also after a cardridge to fit into my RAM Turbo interface, mainly to see if it works really. An ultimate one would be nice, but would …
I forgot, I'm also after a cardridge to fit into my RAM Turbo interface, mainly to see if it works really. An ultimate one would be nice, but would consider anything that works, Horace & the Spiders or whatever. Again, not desparate to pay a fortune! -
Can someone help me found those games...... that seem to do not work ? I downloaded them from WOS but for many reason they don't function with my zx32 emulator: Androids, Boxing Manager 2,…
... that seem to do not work ? I downloaded them from ... emulator is necessary to work ".rom" file ? -
A Question about something that has been bothering me for a while ..First off, I'm new to this forum, so please don't all flame me at once >:) I've had a Speccy since about '85 and started with the rubberkey Spec 48K…
... know cricket you might still not understand.)
The second ... fake review, but I'm not sure of my memory anymore ... where I can obtain a rom (snapshot, whatever) of the game ... publishers (if they exist) did not expressly forbid the distribution of ...
