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toasted soeccysHello, ive jsut bought a pair of speccys on ebay (one 16k issue 2 & a prob 48k issue 3) unfortunaly the genius who sold them tried to see if the wor…
... needs to consist of port decoding (really, in the case of ... -
Currah MicroSource emulationIt appears to be impossible to emualte the MicroSource in software on the ZX Spectrum SE as hardware polling is required. The following patch is not …
... about the full 16 bit decoding (although it *should* fully decode ... -
Adding AY music to your plogramI'd like to add some nice tune to my program written in machine code. I am not new to assembler programming but with music programming I have no expe…
... ; select AY R0
OUT $7ffd,124
OUT $fffd,1 ... ; R1
OUT $7ffd,0
OUT $fffd,8 ... ; R8
OUT $7ffd,13
OUT $fffd,7 ... ; R7
OUT $7ffd,62
[/code] -
Elite LenslockHey Hey, I have just purchased "Elite" for my trusty ZX spectrum, unfortuantly it does not have the "lenslock" thingy with it! arggggggggggghhhhhhhh…
... ] a screenshot I made when decoding the Elite pattern for [url ... -
Anybody fancy coding this?blah de blah de blah Please ignore, poting error.
... ROM never gets selected. Simple decoding logic selects your ROM when ... -
Regarding the interface with USB port[url]http://www.octocom.es/reuniones/art_madridsx07_11.html[/url] [url]http://velesoft.speccy.cz/kmouse/km-doc/kempston_mouse_turbo_interface/km-t_2…
... Z80, the I/O port decoding would see IORQ go low ... -
Regarding the interface with USB port[url]http://www.octocom.es/reuniones/art_madridsx07_11.html[/url] [url]http://velesoft.speccy.cz/kmouse/km-doc/kempston_mouse_turbo_interface/km-t_2…
... Z80, the I/O port decoding would see IORQ go low ... -
It's fitting...... that in the very month that the 25th anniversary of the Speccy falls on, I'm just finishing up making my first ever Spectrum peripheral. It's a …
... how to do the address decoding properly. It will revolve around ... -
It's fitting...... that in the very month that the 25th anniversary of the Speccy falls on, I'm just finishing up making my first ever Spectrum peripheral. It's a …
[QUOTE=Marcelo;181081]. Maybe I should have refrained myself a little... I'm still studying how to do the address decoding properly. [/QUOTE]
Sounds a bit ghastly - what's actually involved? -
Faulty M1 linesI'm sure this has been discussed before, but using the forum search for the word 'M1' pulled back no hits, which surprised the hell out of me. Anywa…
... disable ULA's I/O decoding altogether.
And I ... -
Testing RAM Chips After RemovalHi I am going to use Winstons Hot Air Gun method of removing the RAM chips from a 4S circuit board. I wish to check the RAM chips, I have a Logic Pr…
... 74HC138 - for I/O port decoding
- 2 x 74HC272 - one ... -
Reading the border colorI am building a snap-button to my ZX-PC Interface. Is there a way to read the bordercolor which is set by an OUT-command. (and please don't tell me …
... , the Multiface does this with $7FFD on >= 128 Spectrums so ... -
Reading the border colorI am building a snap-button to my ZX-PC Interface. Is there a way to read the bordercolor which is set by an OUT-command. (and please don't tell me …
... , the Multiface does this with $7FFD on >= 128 Spectrums so ... -
The Unofficial Official 25th Anniversary celebrations and Website announcement threadAs Martijn's going to be away during the festivities, can people report what they're doing here please, as and when they have something to announce. …
... ! 25 years of great fetching, decoding and executing with a screen ... -
What colour is your lenslok?Mine came from Elite and was red.
... ] is my emulator program for decoding the Lenslok letter patterns.
TZX 1.20 block 0x18 questionHi All I am in touch with G?nter Woigk the author of Zxsp emulator for mac os X and we both wondering something about block 0x18 (Sorry if that ques…
... bother with generalized bit stream decoding when it is not going ...TresLucesDeGlaurungLas(conquestador)hello i am trying to get the said title to work,i cannot use the kempston joystick when playing this game(i have tried cycling through all the joyst…
... clones due to relaxed port decoding ($df).
Spectaculator 7 ...Vote for the change of TZX formatThere is an ongoing discussion on the proposal of Patrik Rat to change the current TZX format specification to one that is simpler to implement for e…
... to keep WAVs for future decoding and reference. I also wonder ...New protection systemsAs a follow-up to [URL="http://www.worldofspectrum.org/forums/showthread.php?t=14311&page=2"]this[/URL] thread regarding relatively new protection sy…
... par. Just a bunch of decoding loops utilizing few undocummented Z80 ...New protection systemsAs a follow-up to [URL="http://www.worldofspectrum.org/forums/showthread.php?t=14311&page=2"]this[/URL] thread regarding relatively new protection sy…
... bit later.[/QUOTE]
Those decoding loops? Strange, I find those ...New protection systemsAs a follow-up to [URL="http://www.worldofspectrum.org/forums/showthread.php?t=14311&page=2"]this[/URL] thread regarding relatively new protection sy…
[quote=Patrik Rak;187355]Those decoding loops? Strange, I find those pretty boring.[/quote]
Extremely boring :)
But I think a long, tedious part also presents a certain off-putting element to a would-be hacker.New protection systemsAs a follow-up to [URL="http://www.worldofspectrum.org/forums/showthread.php?t=14311&page=2"]this[/URL] thread regarding relatively new protection sy…
[QUOTE=Patrik Rak;187355]Those decoding loops? Strange, I find those ...PZX file format draft[QUOTE=Andrew Barker;186084]To this date, there is no rival format for TZX, despite people saying they can do better. Well the challenge is on, prov…
... needs for some reason, and decoding application would still understand that ... so uniform anymore, and the decoding application can not use 4 ... it a bit easier for decoding application to detect standard sequences ...PZX file format draft[QUOTE=Andrew Barker;186084]To this date, there is no rival format for TZX, despite people saying they can do better. Well the challenge is on, prov…
... to be checked by the decoding implementation anyway, so it may ...Russian clone of ZX-Spectrum 48kThe classic russian clone of ZX-Spectrum 48k [URL="http://sblive.narod.ru/ZX-Spectrum/Leningrad48k/Leningrad48k.htm"]http://sblive.narod.ru/ZX-Spect…
... (bits 6 and 7 of #7FFD port). This machine has expansion ...They Sold a Million TZX problemHi yes it's me again :) I notice that the "They Sold a Million" TZX file on this site is corrupt. It doesn't load Daley Thompson's Decathlon (tape …
Okie, all done.....
Tape 1 - Side B (Daley's) was missing Day 2, and indeed missing blocks before
the clicky pilots. When decoding this one you have to use -k4 in MakeTZX.
Cheers
AndyRussian clone of ZX-Spectrum 48kThe classic russian clone of ZX-Spectrum 48k [URL="http://sblive.narod.ru/ZX-Spectrum/Leningrad48k/Leningrad48k.htm"]http://sblive.narod.ru/ZX-Spect…
... . "bits 6 and 7 of #7FFD port" is nice to know ...They Sold a Million TZX problemHi yes it's me again :) I notice that the "They Sold a Million" TZX file on this site is corrupt. It doesn't load Daley Thompson's Decathlon (tape …
Just to add. I re-sampled the full compilation, including JSW.
I'll keep the WAVs as well for further inspection and future decoding.
Cheers
AndyPZX file format draft[QUOTE=Andrew Barker;186084]To this date, there is no rival format for TZX, despite people saying they can do better. Well the challenge is on, prov…
... . Would perhaps pseudo code for decoding help? It's just two ...Russian clone of ZX-Spectrum 48kThe classic russian clone of ZX-Spectrum 48k [URL="http://sblive.narod.ru/ZX-Spectrum/Leningrad48k/Leningrad48k.htm"]http://sblive.narod.ru/ZX-Spect…
... "bits 6 and 7 of #7FFD port" is nice to know ... an internal circuit which tracks #7FFD bit 4 state.
... to change RAM pages via #7FFD.
As to IM 2 ... bits 6 and 7 from #7FFD to set additional RAM pages ... mode. Bits 7 and 6 #7FFD port get locked up and ...
