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Best clone to build ?I'm thinking of building a Spectrum clone but not sure what design that it's best to start from. I prefer to use only standard components and not …
... .
- Use a passive bus backplane,8 or more slots ... -
Ultimate PollIt seems that most people like giving their profiles/opinions, so here's another one... see if I can make a poll out of it :) (some questions may ha…
... ., Spy Hunter, Moon Cresta ( perfect ), Bubble Bobble (?), Puzznic ( except no girlies ... -
Ultimate PollIt seems that most people like giving their profiles/opinions, so here's another one... see if I can make a poll out of it :) (some questions may ha…
... arcade conversion
Pang or Bubble Bobble. Or even Chase HQ ... -
Expanded Profiles - Brief BiosExpanding on the post about Crimewatch style profiles, why not make a biography style profile. And I'll be the first... NAME: Patrick J.K. Furlong A…
... /> LIVES: In my own little bubble where it's nice and ... -
Fairlight 2, once againOK, so I'm determined to make Fairlight 2 crumble and reveal its secrets. I've been running around in part 2 with a "go through all locked doors" POK…
... because of damage from a bubble, you don't die). That ... -
Early Speccy Memories ThreadHiya. Right Ok. I want to start a thread going here and I want to know all about your early days with speccys. I am 31 now. I got involved with spec…
... shop in 'Accrington ' near the bus depot and swooning in amazement ... on the back of the bus on my travels home. There ... -
ZX in FPGA...Hmm..seems nobody is interested in a replacement PCB with FPGA...well..heading towards next FPGA projects then...C64 and others (o; [ This Messag…
What about the expansion bus? Is the good old Z80 bus edge interface on the pipeline, or something more of the style of Sami Vehmaa's ZXBUS?([url]http://user.tninet.se/~vjz762w/[/url] )
/Pedro -
ZX in FPGA...Hmm..seems nobody is interested in a replacement PCB with FPGA...well..heading towards next FPGA projects then...C64 and others (o; [ This Messag…
... and have an original Spectrum Bus slot
2: Use ... slot. But access to the bus is a must. But that ... -
ZX in FPGA...Hmm..seems nobody is interested in a replacement PCB with FPGA...well..heading towards next FPGA projects then...C64 and others (o; [ This Messag…
... ? Like those with VG64/96 bus connectors on backplane?
ZX in FPGA...Hmm..seems nobody is interested in a replacement PCB with FPGA...well..heading towards next FPGA projects then...C64 and others (o; [ This Messag…
... ]
And for the bus this:
[url="http://www ... ? Like those with VG64/96 bus connectors on backplane?
[/quote ...Hardware section....Wonder why here is no specific hardware forum??? No one ever touched a soldering iron here? (o; I'm kinda lost here with my hardware stuff under: "…
Just one connector/Bus interface for all models ?
< ...GP32 speccy emulators and other stuffI'm about to invest in a GP32 BLU as I have a long long long stay in hospital coming up and really want to know if anyone has one of these and can gi…
... believed - full speed, full sound - Bubble bobble in the palm of ...Another Z80 processor questionOK, this time this isn't clearly covered in the FAQ, as far as I can see.... Suppose we have the CB instruction "SET b,r" (b=bit, r=register (differ…
... in ultra-precise stuff (floating bus, contended memory), but I want ...Top 10 Games - All Formats (Pre Playstation era)Without being biased only towards Spectrum games what are your favourite 10 games? (Apologies if this has been asked before) My favourites: 1 Sensi…
... )
Lemmings (Amiga)
Bubble Bobble (Amiga)
Civilization (Amiga ...InterruptsA small piece intended for the FAQ. Comments, corrections, additions welcome. Notably: * How long does the 48K ULA hold /INT low? * What happens i…
... b from the data bus. The memory at location ... random bytes onto the data bus at random times, which ... this will be the idle bus value (0xff), coincidentally the ... bytes onto the data bus means a random opcode ... byte of 'nnnn' from data bus.
* M3: 4 tstates ...Top 10 Games - All Formats (Pre Playstation era)Without being biased only towards Spectrum games what are your favourite 10 games? (Apologies if this has been asked before) My favourites: 1 Sensi…
InterruptsA small piece intended for the FAQ. Comments, corrections, additions welcome. Notably: * How long does the 48K ULA hold /INT low? * What happens i…
... RST n on the data bus, it takes 12 cycles to ... CALL nnnn on the data bus, it takes 19 cycles:
bus.
* M3: 4 tstates: read ...InterruptsA small piece intended for the FAQ. Comments, corrections, additions welcome. Notably: * How long does the 48K ULA hold /INT low? * What happens i…
... PIO by scanning the data bus can tell that the interrupt ...InterruptsA small piece intended for the FAQ. Comments, corrections, additions welcome. Notably: * How long does the 48K ULA hold /INT low? * What happens i…
... PIO by scanning the data bus can tell that the interrupt ...InterruptsA small piece intended for the FAQ. Comments, corrections, additions welcome. Notably: * How long does the 48K ULA hold /INT low? * What happens i…
... 8-bit vector on the bus. Presumably it does this with ... an instruction opcode on the bus is a similar task. Probably ...InterruptsA small piece intended for the FAQ. Comments, corrections, additions welcome. Notably: * How long does the 48K ULA hold /INT low? * What happens i…
... 8-bit vector on the bus. Presumably it does this with ... an instruction opcode on the bus is a similar task. Probably ... instruction / vector on the data bus.
I think the ... vector / RST on the data bus) + 2 cycles of refresh.
Top 10 Games - All Formats (Pre Playstation era)Without being biased only towards Spectrum games what are your favourite 10 games? (Apologies if this has been asked before) My favourites: 1 Sensi…
... love it.
2) Bubble Bobble (Spectrum/Amiga)
Used ...Mysterious bit of codeHi everyone, I found the follow piece of code in a game and was wondering what it does. ld bc,40ffh ld e,40h loop ld a,r …
You may wish to see Ramsoft's "Floating Bus Explained" document for a thorough explanation of what's going on with reads from unattached ports.2 questions regarding partial port decoding1) What happens if the Spectrum reads from a port whose number matches the criteria for more than one device ? Does only one of the devices get to r…
... the state of the data bus is fought over. Strongest drivers ...2 questions regarding partial port decoding1) What happens if the Spectrum reads from a port whose number matches the criteria for more than one device ? Does only one of the devices get to r…
... not put garbage on the bus during an interrupt acknowledge, so ...A few questions regarding EmuZwinI had posted this in the development forum and then remembered there was an emulators forum, so apologies for the repetition. 1. I have been trying …
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4. Floating Bus implementation. I use this to ... test an emulator's floating bus emulation accuracy using Ramsoft's ...AmericaI've been wondering, was the Spectrum released in America? Was it popular? Are there Spectrum games that were made in America? There must be a few A…
... was never available, the BEU (bus expansion unit) was to allow ...Car boot PricesYesterday i went to a well known car boot sale up here in lancashire , i spotted a box of speccy games on a table , its ages since ive seen any at a …
... how long before that particular bubble bursts? :)
Was a ...Manic Miner GBAI just got a game boy advance SP and treated myself to a copy of Manic Miner for it. I'm still not too sure about it though. The cover is nice.... …
Tears of nostalgiaI have to say, playing games again like Fued, Head over Heels, Where time stood still, arkanoid 2, heavy on the magick (list could go on forever), ma…
... , such as Ikari Warriors and Bubble Bobble - though it makes me ...
