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help needed :) how to rotate a 3 x 3 array 90 degreesI just cant seem to get this sorted in my head ( or on paper ) , I've found multiple examples in C , python , etc but cant find any z80 examples any …
I just cant seem to get this sorted in my head ( or on paper ) , I've found multiple examples in C , python , etc but cant find any z80 examples any one have any thing to offer or best practices etc
Cheers
CodenameV -
divIDE +3e: How can I put games into hard disk?I've got a +3, a divIDE and the +3e ROMs. I want to copy some games in the CF card so my +3e could execute them from BASIC ("disabled" divIDE, loadin…
... Parapshock (Microhobby) won't work in 128k mode.
- They ... some games that came unprotected in Microhobby magazine (i.e.: ... that the only transfers supported in emulators are Multiface... but ... same floppy? Converted programs work in C:?
And some ... -
New Game: Advanced Premiership SimulatorHi Friends, I discovered BASin last Saturday, and I've found it rather fun to play with. I ended up producing this; It's basically (no pun intended)…
... simulates football matches between teams in the English Premiership and ... 's no betting limit. In addition to winning (or ... I was considering entering it in the Crap Games Competition, ... Years of professional programming in C/Java and hobbyist machine coding ... -
.Z80 File Format when exported by SpecEmuI'm trying to parse a .Z80 file generated by SpecEmu but am getting a few discrepancies from [url=http://www.worldofspectrum.org/faq/reference/z80for…
... but the snapshot is 4K in side (i.e. compressed) but ... ReadWord() method implementation (see below) in C# is the cause of the ... -
Circumspect - A Spectrum Emulator for learningThis is a project that I have been playing around with for a while. It must be said, I tend to have problems getting things finished where hobbies a…
... :
[LIST]
[*]Written in C
[*]As portable as possible ... -
The Great Escape disassemblyHi, Over the past few months I've been steadily chipping away at reverse engineering Denton Designs' classic 48K title, The Great Escape. I'm now a…
... the beginnings of a reimplementation in C.
The current code ... -
"Your Game" - a ZX Spectrum game making competitionHello! Here is an interesting information from Alone Coder: **************************************** "Your Game" ZX Spectrum game making competi…
... /> Turbo 2 / ZX Evolution computers in your games. But if you ... (plus SD card interface added in ZX
Evolution). You ... far, from 6 sponsors interested in the development
of ZX ... for writing sprite based games in C: [url]http://shiru.untergrund.net ... -
Looking for haunting classical musicI'm currently transcribing classical piano pieces to be played as a duet on classical guitar. I've started with [url=http://en.wikipedia.org/wiki/Pr…
... -sharp_minor_(Rachmaninoff)]Rachmaninoff's Prelude in C# Minor[/url]
Any ... -
New 48K Spectrum EmulatorHi there, After a year in the making the first version of my emulator is available at [url]www.specwin48.co.uk[/url] Written in C# the source is al…
... ,
After a year in the making the first version ... .uk[/url]
Written in C# the source is also available ... -
MGT Two-Face and DivIDEI've got a [url=http://www.worldofspectrum.org/infoseekid.cgi?id=1000247]MGT Two-Face[/url] that I used to connect to my Spectrum 48K and then a DivI…
... At a retro gaming event in c:a 2009, the DivIDE ... slot the DivIDE is plugged in, usually the rear one ... Are there any collectors interested in a MGT Two-Face, ... given it may not be in perfect working condition? (I ... be asked in a different forum section in case I ... -
Movin And A Groovin Horizontal Flip improvementOn the left is the flip horizontal portion from Andy Pennell'S excellent Movin' & a Groovin' machine code screen routines from Your Spectrum #19 (Oct…
... IX+#00) LD C,(IX+0) ; bung it in C instead
LD ... (HL),A LD (HL),C ; and ... ; hah!
DEC C DEC C
JR NZ,FLIPH ;do ... -
Can a guy that traveled on the short bus learn machine code...Hmmm So after some soul searching I figured it was time to finaly nail spectrum machine code. Its so frustrating to sit infront of a basic listing w…
... function has returned, you type in PRINT USR 61440 (or ... want to address a value in C, why use 03 at all ... beaten but know than live in ignorance.
*some ... br /> 48 = LD C,B
49 = LD C,C
4A = LD ... C,D
4B = LD C,E
LZ4 decoderI encountered the [URL="http://code.google.com/p/lz4/"]LZ4 compressor[/URL] a few weeks ago. Reading the [URL="http://fastcompression.blogspot.co.uk…
... length
ld c,a ; save in byte counter
... ;; at this point, we have in C a token with only
ld c,a ; store in byte counter
... 7T)
ld c,a ; store in byte counter (4T)
Self modifying code ??I made a game in C that was mostly accessing arrays and using FOR NEXT loops, I ran out of memory, so I was thinking would it be possible to use sel…
I made a game in C that was mostly accessing arrays ... code?
When using C the interpreters always write out ...About how z88dk generates code and makes room for variables.When you attempt to code games for the 128K models using z88dk in C you need to somewhat control where variables are stored in memory. I thought tha…
... 128K models using z88dk in C you need to somewhat ... control where variables are stored in memory.
... 8 bits variables) are stored in $5EF1 and $5EF2, which ... when I was paging in different ram pages, but ... created above $C000 I'm in trouble.
...Autoloading bin2tap out there?Hello, my will for coming out with a game of my own seems back somehow, so I've been setting up my developing environment *again* on my new PC. Afte…
... my old test code written in C, but I can't use ...FBSThis is one of those things that is more like an experiment than a real project. I was trying to do this in BASIC, then realised my BASIC was too ru…
... was trying to do this in BASIC, then realised my BASIC ... I ended up written it in C and assembly, but it still ...Fast and easy read/write of attributes?What are the fastest or easiest ways to check the attributes of tiles on the screen, in BASIC? It seems to be a great way of storing object info. …
... of tiles on the screen, in BASIC? It seems to be ... flags on the cell (documented in the manual [URL="http://www ... think I would use MOD in C#, but I don't know ... how to grab the remainder in ZX BASIC.
Is ...ZX-Art graphics updatesWe are gathering a large collection of in-game graphics on ZX-Art at the moment. The ultimate purpose would be to make an easily browsable online arc…
... a large collection of in-game graphics on ZX ... of best ZX Spectrum in-game screenshots, which will ... write something like "trees, in-game graphics", and will get ... really best samples of in-game tree sprites/tiles. ... may be most interested in C?sar D?ez gallery, ...Fast Condition TestingHello my friends, I have been writing some input and string handling routines in BASIC lately - yeah I could write them super fast in C/ASM via z88d…
... could write them super fast in C/ASM via z88dk, but - ... there is something wholesome in writing them in BASIC
in the list. So I ... "[B]c$[/B]" contains a restricted character in the first ... 1[/B]" is put in its place which is then ...Floating Point Package Math48<br>I came across a neat little floating point package for the z80 and I'm adapting it now to work with z88dk and sdcc. There is an interesting…
...
As mentioned in those readmes, this package is ... keeps the floating point operands in registers. The floating point ... requires a floating point accumulator in memory and keeps another ... />
The version in sdcc is written in C and is based on ...Lisp InterpretterStefano came across a Lisp interpretter written in C and had a go at compiling it. I decided to try to make an if2 cartridge for it and was succes…
... a Lisp interpretter written in C and had a go ... ve included all the goodness in one zip:
... There's a tap file in there along with an ... psychologist game that was everywhere in the 80s.
One big flaw in this implementation is there is ...Spectrum Screen RAM layoutHi there The spectrum screen layout is rather odd. It seems to be arranged into 3 256 byte groups. If I have an x (horizontal) coordinate (from…
... be the formula (say, in C, or in ZX BASIC) to generate the ...New Game: CastawayI've released my entry for ZX Dev 2015 ([url="http://zx-dev-2015.proboards.com/post/748"]announcement here[/url]), a platformer for the ZX Spectrum 4…
... ]
It was programmed in C and ASM (more assembler that ...Emulator developmentHi, Could anyone explain or direct to a link that explains in not to technical terms how an emulator is developed. It has always blown my mind eve…
... to a link that explains in not to technical terms how ... the coder have to write in C or whatever language every possible ... /> Yours mystified
Thanks in advance
jonesyNew disc image format: LDBS... Yes, I'm doing exactly the same thing that [url="https://xkcd.com/927/"]XKCD 927[/url] portrays. Don't worry, I have my reasons. LDBS is an at…
... br /> a) more easily rewritable in-place
b) extensible, allowing ... put out a proper definition in case anyone wants to ... an X11-licensed reference implementation in C, utilities to convert to/from ... switch over to LDBS tomorrow -- in fact, please don't, ...Spectrumising a pictureHi, I have been knocking up a quick app to take screenshots and uploading them to my webserver (mainly for the Fallout 4 thread heh), and decided to …
... heh), and decided to add in some filters to the app ... should be done? (I write in c# btw).
[img]http ...Empire - port of trs80 basic programBack when I was a little kid, I had the opportunity to play around with a trs80 model 1 with level 2 basic. One of the games I often played was call…
... decided to port it over in C. Basic being basic, there's ... /> of European land way back in the medieval ages. Your country ... army to be killed off in battle.
Nevertheless, ... year to invest your earnings in
different types of ...Some Graphic Coding & Audio help.Hello my fellow WoS'ers I am in the process of writing some code for graphical purposes - I have Z88DK raring to go but I do not know how to take…
...
I am in the process of writing some ... not know where they go in regards to the +3 ... friendly coder out there (C is preferred but I can ... learn drawing routines, perhaps starting in C and then to ASM - ... only using C as a wrapper for the ASM in the ...Project: ZX OpusHello my friends, I have been in need of a push lately so I thought if I post some of the work for this project here you guys (and gals) can help me …
... yes I said WIMP as in Windows, Icons, Menus and ... which I have truly falling in love with) I have ... I am working on in hardware to combine with ... graphics to the screen either in C or ASM, There are ... help#latest"]some great resources in this thread[/url] that ...
