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detecting 128 mode ?quick question really, someone who programs would know I guess. am I right in thinking some things detect 128 program and adjust accordingly , say i…
... interrupts disabled, page in ROM 0, copy some bytes ... a checksum routine for both ROM 0 and ROM 1 and ... be ROM 1 for a 128K machine, or ROM 3 for a ... +2A/+3 machine) iwth a true Sinclair ROM ... . The 128K ROM ... -
Creating a Spectrum game that won't load...Dear All, I have recently been using my ZX Spectrum as a reference for the production of a new body of art work and something I keep coming back to …
... but the ROM routine can easily be copied and changed for processing known ... (with the character set in ROM) showed only an 'approximation' ... Spectrum ROM
LD DE,768 ;length (6912 for screen)
for screen)
LD ... -
POKING graphicsI remember using binary code (in BASIC) to POKE graphics (thanks Input magazine!) Using a FOR..NEXT loop you would POKE each square in the 8X8 charac…
... memory space and use it for another 'graphic'?[/QUOTE]
... do. You can't - for example - Print the Letter A ... change and the same goes for the UDGs. If you ... time the BASIC PRINT (or ROM routine that handles PRINT) is ... pixel X, Y values for you and writes the 8 ... -
AY programming and notes frequencyHello everybody, I'm Targhan from the french CPC group Arkos, perhaps you've heard of us. I'm currently working on a music tool and I'd like to k…
... that the timing constants for the ROM routine in the TS match ... those in the standard Spectrum ROM ... (I think I have confirmed this but can't recall for ... 1.007660577489688 faster than expected for a 3.5MHz machine, multiplied ... -
Adjusting your code for screen refreshingOk, I'm aware that I should know it already after writing 5 Spectrum games in machine code but interrupts and screen refreshes were always my weaker …
... run the MASK-INT routine.
-------------------------------------------------------------------
For testing this the ... states
for the MASK-INT routine in a no-key situation.
Keeping a key pressed ... -
Skooldaze TooDear WoSsers, Thanks to Skoolkid's disassembly I'm attempting to write a new "improved" version called [B]Skooldaze Too[/B]. As part of the improvem…
... lower-case letters part of key table - saves 64 bytes
routine for "Please turn to page xyz ... the modified score / lines string routine.
[*]Removed the odd JR ... br /> [/LIST]
The Kiss routine has not been fully implemented ... -
more memoryi dunno if this has been mentioned, apologies if it has (i cant be arsed to search :P) Ive just been reading about the zx81 and it popped into my he…
... -16384). Diag-Board uses the ROM area for adding switcheable 'banks' and ... this area, used by ResiDOS for storage. The 'messy' situation is ... the ROM area, and 'room' must be found somewhere for the routine that ... -
Official CSSCGC 2010 Competition ThreadDear Wossers, As 'loser' of the 2009 competition, I am now obliged to host the 2010 competition. I have created a site which will provide a hub for …
... least part of) the ROM beeper routines are actually ... and is consulted by the ROM beeper routine.
Of ... br />
But for now, as a workaround I ... to $00 however, the ROM routine will instead change it ( ... /> EDIT: I use a routine like this now to set ... -
Spectrum 128+ (No TV picture)I got a Spectrum 128+ which is not generating any picture. I checked the TEA2000, and it gets not 12 Volt, but only 1.4, so this is the problem, I gu…
... working machines) and I hear key click through the headphones.
What ... transistor are equivalent.
[For this reason when I repaired ... -
Mistake in the 128K technical FAQ?[url]http://www.worldofspectrum.org/faq/reference/128kreference.htm[/url] [quote]Memory banks 1,3,5 and 7 are contended.[/quote] Really? I thought i…
... routines in ROM makes things quicker for emulator users.)[/ ... ROM routine runs, then (possibly contended) RAM should only be accessed once for ... of the ROM routine. And tape loading is very forgiving for (small ... you're using the ROM routines, even when loading ... -
Midi Out from machine codeI need to send midi-signals by machine code, while Basic is too slow for my current project. I already read I can use hookcode #11E, but I have some …
... get back from that routine at all, out'ing ... different, but the correct rom is being selected by ... banks / rom banks for the duration of the routine. If they ... be enabled while the routine is running then sys ... .
The rom IM1 interrupt, upon hitting an ... -
Broken or upgraded ZX Spectrum 48kHello First i want to say hello to everybody. I have a new ZX Spectrum 48k in my collection. Seller said that it is broken (no picture). I have this…
... powersupply was advised by Sinclair for all machines that were ... turned in for repair. So your machine ... of a key still should result in an audible key click, repeating ... when the key is held down. -
Machine Code Routine of the weekHow about a thread that has a routine each week that is in [B]assembly language[/B] and is also described in great detail what the hell is going on …
Thanks for answering the questions I brought ... use the the ROM Print routines via your Routine to Print ... honest I've never used ROM Calls because I think ... a fast(ish), compact, no-ROM routine to print text anywhere on ... etc. amendments to the routine if needs be. -
converting ZX128 software for SAM COUPESAM COUPE is computer compatible with ZX48 model. Use same ports, same keyboard with compatible membrane, 64kB adress space with possibility connect …
... same might even be possible for AY sound too, since we ... as single routine ? I need more info about implement it. For example ... jump to modified ZX rom. Routine in ZX rom set extra memory page ... convertor fast ? Use big table for convert registers ? Is source code ... -
converting ZX128 software for SAM COUPESAM COUPE is computer compatible with ZX48 model. Use same ports, same keyboard with compatible membrane, 64kB adress space with possibility connect …
... know only ROBOCOP 2 conversion for SAM COUPE (with AY ... space. Exist one easy way for conversion:
- ZX memory ... page 15
- rewrite paging routine for work with SAM ram
rom). This routines must work ... be emulated in ZX rom. -
+3 how to detect if a file exist ?Need help. I am making a generic menu to my compilations over the spectrum +3. Exist some way programatically to detect if some file exists on the d…
... RES 4,A ;Set bit for ROM LSB to 0 (switching ROM3 ... the code is responsible for calling the ROM routine.
;This attempts ... SET 4,A ;Set bit for ROM LSB to 1 (switching ROM2 ... and were done.
;For details of the following block ... -
'Hello World' in ASM ?Can someone show how to make the classic 'Hello World' print with ASM code ? I cant figure at this moment how to insert and handle strings with the s…
... is doing...
check for key press
move character/sprite ... /> update timers
check for collisions
update score etc ... )
so the rom routinues aren't as optimised ... or other machines.. the inbuilt rom routinues aren't as quick ... -
zxs v0.2 releasedI have released v0.2 of zxs if anyone is interested, judging by the response to the first release, I'd say not, but I'm gonna do it anyway!. It has h…
Another very curious port-related issue for you...
IN 254 always seems to return 255. Even when I'm clicking away on the keyboard image! How have you implemented the keyboard support? Are you hooking a ROM routine or something? -
Beepola v1.01A new version of Beepoa, v1.01, is now available for download from:- [URL]http://freestuff.grok.co.uk/beepola/Beepola_v1.01.00.zip[/URL] (650KiB) …
... only solution is to use ROM routine, and you can use arpeggio ... really need one (I mean, for some actual use), you can ... -
Beepola v1.01A new version of Beepoa, v1.01, is now available for download from:- [URL]http://freestuff.grok.co.uk/beepola/Beepola_v1.01.00.zip[/URL] (650KiB) …
... only solution is to use ROM routine, and you can use ... need one (I mean, for some actual use), you ... you made anytghing like that for Spectrum16, I would use ... it too, for 100%, for some intros of the ... . Also I would advertize it for people with ZX16.
Do a load "file" with ASMFollowing the idea to build a menu with asm, now i need to know how to do a load "file". I can use the Rom routine but i am not sure if the rom rout…
... am not sure if the rom routine accept the filename. I mean ... that the rom routine that is exposed in the ... use the Rom routine. But with or without is valid for me.
The ROM-routine reads a number of bytes ...Beepola v1.01A new version of Beepoa, v1.01, is now available for download from:- [URL]http://freestuff.grok.co.uk/beepola/Beepola_v1.01.00.zip[/URL] (650KiB) …
... channel of tone (without arpeggio) for 16K, because contention pattern is ... -timed code, and ROM routine is the only possible option for tone. Well ... code with Interface 2 Cartridge for 16K - the ROM has no contention.Message to all programmersHello folks, more and more programmers in the recent time are using special loading routines for their Homebrew-Software. This makes their game runn…
... machines and a .tap version for emulators.[/QUOTE]
ROM routine, and starts loading as normal ... and continues loading without pausing for a header tone.
... this create any additional problems for converting to disk (+3DOS / ...Message to all programmersHello folks, more and more programmers in the recent time are using special loading routines for their Homebrew-Software. This makes their game runn…
... coupled with a plea for other Spectrum programmers to ... Basic instead of the Rom-Routine and loaded the main ... the Call of the Rom-Routine. That?s very simple ... I am here just asking for that. Every programmer can ... First I got asked for copyright issues and now ...Message to all programmersHello folks, more and more programmers in the recent time are using special loading routines for their Homebrew-Software. This makes their game runn…
... , something I'm writing for the 128K Spectrum may well ... It then jumps to the ROM routine, and starts loading as normal ... "), and continues loading without pausing for a header tone.
< ... this create any additional problems for converting to disk (+3DOS / ...Message to all programmersHello folks, more and more programmers in the recent time are using special loading routines for their Homebrew-Software. This makes their game runn…
... redistribute the games should ask for permission first, remembering that ... the download stats, particularly for the first few weeks after ... sometimes my games are written for other people or organisations and ... to jump instead of the ROM routine I jump to Basic ...Message to all programmersHello folks, more and more programmers in the recent time are using special loading routines for their Homebrew-Software. This makes their game runn…
... to Basic instead of the Rom-Routine and loaded the main ... one who created the loaders for King's Valley. I ... is the one we used for physical tapes. Turbo speeds ... BASIC loader leaves more memory for the main game. This ... is not a problem for King's Valley, but ...JSpeccy new releaseA new version of my Java based ZX Spectrum emulator has been released. The summary of new features is: - 128k/+2 ZX Spectrum emulation - AY-3-8912 …
... , when the program uses the ROM save routine. For non-standard routines, can ...Beepola v1.01A new version of Beepoa, v1.01, is now available for download from:- [URL]http://freestuff.grok.co.uk/beepola/Beepola_v1.01.00.zip[/URL] (650KiB) …
... only solution is to use ROM routine, and you can use arpeggio ... really need one (I mean, for some actual use), you can ... to have some music-program for it. :) Even very simple (no ...
