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ZX7: an "optimal" LZ77 packerAbout 20 years ago, I started a M.Sc. in Computing, planning to work on data compression. Although I quickly changed to another subject for a number …
... . A test using about 30 128k snapshots took about 2-3 ... a time, optimize() now frees memory allocated to min, max, matches ... from spectrum computing (as WoS page was failing when I tried). -
type in to learn about IM2I'm trying to mess around with learning about IM2 and I found a nice little article in Sinclair User September 1988, issue 78, Page 70-71 [url="https…
Oh, the routine works on the 128k models too, as long as ... .
The 128K editor uses the upper memory so you can ... to use more memory, you could relocate the interrupt routine (not a ... do something special with the 128k memory. -
IM2 on a 128k SpectrumHello: I have found another article on IM2 found in Personal Computer News, Issue 90. In the article "Face up to the Time", I typed up the code (…
... inherent problem using IM2 and 128k machines with BASIC? I already ... so that it doesn’t page out, so losing out on ... keep the page number somewhere. And you cannot expect any memory is ... it can happen just after memory banks have been switched, during ... -
What are editor scratchpads?I've been reading and experimenting with 128 bank switching and using the shadow screen. The technical reference [url="https://worldofspectrum.or…
... slightly different... first 4k of page 1 is used as disk ... default, and almost the entire page 7 is forbidden if you ... interrupt routine (or disable interrupts), you may use the entire 128k without ... , that will use page 7).
- Although page 7 is a minefield ... -
If you had four roms...Just wondering if you were designing a Spectrum from scratch, and you used a 27512 EPROM, which would hold about 4 spectrum roms, what you would inst…
... ’ when not required. Games could page both out if not needed ... much faster.
The 128k editor is nicer than the ... chips across the entire Z80 memory map (all RAM) paging out ... -
Any adventure game frameworks written BASIC ?I remember INPUT published a simple adventure game, with about ten locations. It was all written in BASIC, but it provided a program framework one co…
... . This loads the Machine Code routine (at Addr: 60000) in ... it, but its just in memory, not part of the ... details/ZX-computing-1986-10/page/n49/mode/2up
... details/ZX-computing-1986-11/page/n73/mode/2up
... zxcomputing-magazine-1986-12/page/n75/mode/2up -
How to disable the "scroll?" message?Hello. I'm a beginner Z80 assembly programmer and I decided to make a ZX Spectrum game to practice my skills and gain some more experience. I curr…
... to the end of the page though
call text_out
routine uses and save any registers ... do wacky things and trash memory. A reg will also wrap ... thing faster and uses less memory to do that as well ... -
How to disable the "scroll?" message?Hello. I'm a beginner Z80 assembly programmer and I decided to make a ZX Spectrum game to practice my skills and gain some more experience. I curr…
... to the end of the page though
call text_out
routine uses and save any registers ... do wacky things and trash memory. A reg will also wrap ... thing faster and uses less memory to do that as well ... -
Football Manager revisitedHello everyone The latest version of my Football Manager Revisited game is now available. you can download it free of charge here: [url="http://fm…
... code at all. Converting to 128K Basic, by hand, was part ... where I could.
Memory space was always the biggest ... spare memory - and even that's needed as a buffer to page ... -
XYZ - a multithreaded GUI operating system for SpeccyToday I'm re-starting my unfinished project. A few years ago I wrote the yx multitasking kernel (which includes RAM/ROM versions, threads, memory man…
... is different for 48K and 128K as well
The ... ZX Spectrum 128K / +2:
The 128K machine is similar to ... the 48K machine, but with extra memory ... IM2 service routine has to be in non contended memory as well ... -
New release of ZEsarUXFound today by chance on: [url]https://github.com/chernandezba/zesarux/releases/tag/10.1-13122021[/url] [quote]ZEsarUX-10.1 Beta1 Pre-release che…
... when using View Variables and memory corrupted
Fixed hang pressing ... .ZSF screen previews when using 128k screen page 7
Fixed .DSK ... -
Favourite turbo loaders?Hey, guys. Title says it all. Which were your favourite turbo loaders/fast loaders/protection schemes, whatever you want to call them? I have a so…
... )[/url] or any other custom routine. They allows you to use ... games can't load in 128k mode. Also, some developers "protects ... game loads every byte of memory (speedlock can load only the ... drawbacks disappears when used in 128k games.
Also, I ... -
New release of ZEsarUXFound today by chance on: [url]https://github.com/chernandezba/zesarux/releases/tag/10.1-13122021[/url] [quote]ZEsarUX-10.1 Beta1 Pre-release che…
... Debugging:
-Allow to change memory pointer to a value from ... when using View Variables and memory is corrupted
Fixed hang ... .ZSF screen previews when using 128k screen page 7
Fixed .DSK ... -
Standard Development LibrariesSo after some time away I decided to re-register after a Twitter thread (https://twitter.com/SpectrumNez/status/1578158361236963328) led me to a Visu…
... things such as ports, memory (paging and ROM routines ... setting up interrupt vector tables, page switching, writing to AY, ... variables, managing the stack and memory so forth.
Routines ... suggested implementing a screen fading routine - the like of which ... -
Standard Development LibrariesSo after some time away I decided to re-register after a Twitter thread (https://twitter.com/SpectrumNez/status/1578158361236963328) led me to a Visu…
... up interrupt vector tables, page switching, writing to AY, ... variables, managing the stack and memory so forth.
Routines ... interrupts, AY routines, advanced memory managing, or even sprites ... suggested implementing a screen fading routine - the like of ... -
TZX / TAP of Glider Rider 128K Can anyone help me find a TZX or TAP version of Glider Rider 128k . The only versions I can find are Z80 snapshots or a TAP file which is a version …
... br />
Addams Family 128k - Ocean
Bravestarr - US ... DNA Warrior - Cascade
Earthlight 128K - Firebird
Prison Riot - ... Players Premier
T-Wrecks 128k - Gremlin Graphics
... -
Wanted: TZX of Technician Ted 128k RemixAfternoon again, So anyone have an original or copy of the title mentioned, we only have a Z80 of this one. A TZX of the 128k version would be nice…
line routineWondered if anyone can help me out. I have been programming a 3d graphics library for the spectrum, in Machine code. The line routine that I have i…
... code.
The line routine that I have implemented is ... there have a fast line routine, plese email me.
48k with keyboard of 128k+2 and tapes..ahoi!i worked to make a 48k+ with keiboard of 128k+2 and i want to send it! so i have many tapes with games, workings'n' demo, compilation, fanzine!!!! fo…
i worked to make a 48k+ with keiboard of 128k+2 and i want to send it! so i have many tapes with games, workings'n' demo, compilation, fanzine!!!! for info contact 0347 8783346 or 3478783346.128K+2 & 100+ games ** For Sale **Hi, If anyone is interested I have a 128k+2 for sale. This comes with Sinclair & Other Joystick, and over 100 Games. All is in excellent condition (…
... is interested I have a 128k+2 for sale.
This ...speccy 128kI have a spectrum 128k that seems to work fine and load games ok. When I power it on for the first time I get the usual options screen, no problem. B…
I have a spectrum 128k that seems to work fine ...looking for 128k keypad(spanish. vers.)I am looking for a 128k keypad, spanish version(since these were only supplied with spectrums sold in spain)or english version ;) Estoy buscando un k…
I am looking for a 128k keypad, spanish version(since these ... un keypad para el spectrum 128k. El keypad se vendio en ...THE SPECTRUM QUIZ IS HEREOkay folks, here are 30 questions. The person who EMAILS them to me with the most correct is the winner. No cheating, use your memory and not the W…
... winner. No cheating, use your memory and not the WOS archive ... Bearing
29 What 128k game had a womans voice ...ZX Spectrum 128k +2Hi, can anyone help me out? I'm trying to get a 128k +2 (the black one), im not bothered about it being boxed or anything (as the price is usually …
... 'm trying to get a 128k +2 (the black one), im ...SPIN Public Beta 0.1b Available for downloadHi all, back again, and as just recently announced on CSS, SPIN has been updated. Here's the post to CSS (or the relevant parts): It's been a bu…
... a bug in the keyboard routine - special PC symbol keys work ... a related bug in
128k snap saving.
Fixed Z80 ...Quiz VI - Trident on VESA Local Bus.... Something to keep everyone busy while Arjun sorts out his caboodle of questions.... Ok, 12 quick fire questions.. Some cryptic - you`ll have to un…
... Poked to change memory banks/pages in a 128k Spectrum?
Poke ...
