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Contention and floating bus timingHello, I was recently playing a bit with memory contention and floating bus stuff in ZXDS and there is one thing which puzzles me a bit. It is the d…
... push T3 to after the byte fetches is exactly the same ... etc are pushed after the byte fetches! Nothing of significance happens ... .
I'll get back to you.
Chris -
Retro PC games?Following on from the conversation about Blade Runner and Blood for the PC I thought I would start a thread about other 'retro' PC games Under a kil…
... player to be continually trecking back to the inn at the ... Comet - and don't forget Simon the Sorcerer and Theme Park ... out and no sufficiently far back saved game, and I didn ... -
cronosoft sitei just can't enter cronosoft site at [url]www.cronosoft.co.uk[/url] it give me an error like the site does not exist did the site go down?
... />
I should be back online by 10th October at ... can to get the website back up and running as soon ... :)
cheers,
Simon -
Speccy just snuffed it while playing 3D Pinball :(I have two speccys but the one I use most has just given up the gost! :-( game froze up and now all I get is flashing patterns and lines:-( Everyt…
... for these chips a while back, if not look up the ... />
Kind Regards,
Simon -
Speccy just snuffed it while playing 3D Pinball :(I have two speccys but the one I use most has just given up the gost! :-( game froze up and now all I get is flashing patterns and lines:-( Everyt…
... for sending me that chip back-along and saving the day ... />
Thanks again,
Simon -
Speccy just snuffed it while playing 3D Pinball :(I have two speccys but the one I use most has just given up the gost! :-( game froze up and now all I get is flashing patterns and lines:-( Everyt…
... for sending me that chip back-along and saving the day ... />
Thanks again,
Simon[/QUOTE]
Makes very ... -
Project: M.u.l.e.Wokani came up with a great idea about trying an open-development approach for spectrum games, and I thought why not try with a game I have under dev…
... '
g_scrollPos = g_textBuffer; // loop back to the start of the ... and source address after each byte move (like LDIR) but ... operation #8 (rotate source byte left) which starts at the ... the byte there, rotates it left, writes it back and then ... -
Freeview - interesting timesabc1's gone, and ch15 is still free. FTN's gone, now replaced by Virgin 1, which looks potentially interesting, but restricted to a 4:3 picture. Nu…
... .
A few months back Men and Motors stated showing ... "][SIZE="6"][FONT="Impact"][B]BUTLER!!!!!!!! GET THAT BUS OUT!!!! ehhhhhgghhghghghhh ... -
Freeview - interesting timesabc1's gone, and ch15 is still free. FTN's gone, now replaced by Virgin 1, which looks potentially interesting, but restricted to a 4:3 picture. Nu…
... ]
A few months back Men and Motors stated showing ... "][SIZE="6"][FONT="Impact"][B]BUTLER!!!!!!!! GET THAT BUS OUT!!!! ehhhhhgghhghghghhh ... -
WANTED - Spectrum on/off switch for 48K rubberHi, I am looking for a ON/OFF switch for the 48k spectrum rubber, I could easily make one up myself but for tidyness I'd like a original one. I ca…
... ones preffered! :lol:
Simon[/QUOTE]
I ... is the one I had 'back in the day' and had ... -
WANTED - Spectrum on/off switch for 48K rubberHi, I am looking for a ON/OFF switch for the 48k spectrum rubber, I could easily make one up myself but for tidyness I'd like a original one. I ca…
... is the one I had 'back in the day' and had ... an order now.:-)
Simon -
WANTED - Spectrum on/off switch for 48K rubberHi, I am looking for a ON/OFF switch for the 48k spectrum rubber, I could easily make one up myself but for tidyness I'd like a original one. I ca…
... bet they will mail u back with a better offer.[/QUOTE ... for you help,
Simon -
ZX80 with new ROM?There's an interesting ZX80 on sale from eBay US, with some included software. The ZX80 has the original keyboard, however the ROM appears to be the…
... the keyboard has been reverted back to the original one (assuming ... =320167933109[/url]
Cheers, Simon[/QUOTE]
When Sinclair ... -
Compressors are available for Speccys ?Hi folks, although I was an wasn't strictly a speccy coder in the glory days (amstrad & amiga for the most part), I have secides to arse about with …
... approaches: 1) for each depacked byte, calculate the SCREEN$ line/column ... $ and after depacking, reorder data back from column based to Spectrum ... -
IM instruction - danger Will Robinson!!! :)Here's something I've wondered about for years: On page 102 of "Mastering Machine Code on your Zx Spectrum" by Toni Baker, there's an instruction li…
... lot of IM 2 programming back in the late 80's ... chance that the right 2 byte combination would arrive for one ... -
Vector drawing routines.Anybody could point me to some sort of vector drawing package of routines, callable from BASIC? With "vector drawing" I mean to draw 2D pictures with…
... ]
I take that back, it can fill any shape ... do the initial fill a byte at a time where possible ... that you have to go back and iterate over every single ... -
Vector drawing routines.Anybody could point me to some sort of vector drawing package of routines, callable from BASIC? With "vector drawing" I mean to draw 2D pictures with…
... Anonymous;221853]I take that back, it can fill any shape ... do the initial fill a byte at a time where possible ... that you have to go back and iterate over every single ... -
ZX Spectrum emulators for SAM COUPEI noticed that there is an emulator for the SAM called SPECTRE which can't be found in the total view of all emulators. Also is lacking the emulator…
... , Edwin's Jupiter Ace, and Simon's vast array of other ... that FTP site was started back around 1994 I even uploaded ... -
Rom dumping a Mirage MicrodriverI need to dump the rom of my Mirage Microdriver for Zub and don't know what to do...any help?
... any address in the 256-byte block from $3D00-$3DFF.)
back in and restores the Spectrum ... -
Get "Painting" WoSsersSpeccy/Sinclair themed pics Here's my first (very, very, very, very poor) attempt [url]http://artpad.art.com/?jr7ecj179zf8[/url] I doubt anyone co…
... and you just blasted me back in time! I've just ... I saw the old 'Bug Byte' logo stuffed behind loads of ... -
Battle of the Isometric gamesYes, it is another poll. But I think this one will produce quite an interesting debate. I never really got into these games back in the day but sinc…
... talent really, Andrew Braybrook, Chris Butler, John Twiddy, Tony Crowther and ... wonder if some enterprising guru back in the day couldn't ... -
New (easier) speccy games testI've created a new speccy games test: [url]http://www.sometests.com/tests/Gaming/ZXSpectrumGamesTest_EasierVersion_.html[/url] Again it's 20 questi…
... Spectrum, you first write a byte out to a port and ... just tidiness, and then go back to the old way for ... "new" game, and then revert back for following games. this suggests ... -
The direct bus or indirect one... that is the questionThe Ethernet project continues...and I'm in a quandry. So I've managed to implement enough socket library for the W5100 that socket, bind, listen, a…
... , and try and read it back). Writes with autoincrement appear to ... average - at a minimum each byte will require one OUT and ... -
How does the Z80 work internaly?How does the Z80 work internaly, i.e. how does it actually execute a machine code instruction? When it fetches a byte from the memory and finds, for…
... - give it an address, get back a byte.
- the ALU, which ... perform, and outputs the result byte.
So... it ... in the binary patterns - single-byte INC instructions are always 00rr ... the register store to get back a byte, and feed that into ... -
The direct bus or indirect one... that is the questionThe Ethernet project continues...and I'm in a quandry. So I've managed to implement enough socket library for the W5100 that socket, bind, listen, a…
... ), say you've got the byte sequence:
03F704< ... W5100 briefly output the correct byte than skipped forward.
byte contains a significant number of ... ,05,06... it reads it back perfectly every time. The sequence ... -
Best loading on a gameFor me, it has to be Technician Ted, with all those TT's walking across the screen. 2nd comes Skooldaze, only because I spent many MANY of my evenin…
... music? Eg. 1 byte for music data, 1 byte for actual data ... 've seen of that was back in [URL="http://www.worldofspectrum ... -
Full throttle CPUHello, I was just wondering: do you experts know if any of the 48K games pushes the Z80 CPU to 100%? I mean, every CPU cycle is used? If so, what's t…
... example, writing to a attribute byte is just as quick (modulo ... was certainly an occasional problem back with Gerton Lunter's Z80 ...
