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Results of Di:HALT (music/graphic/demo)Official Online Place Score Place Score [ ZX Spectrum AY/YM TurboAY Music ] 1 6.30 2 5.66 adversary - Cj Splinter […
Official Online
Place Score Place Score
[ ZX Spectrum AY/YM TurboAY Music ]
1 6.30 2 5.66 adversary - Cj Splinter [Trinitrocode/DL Corp]
2 5.97 1 5.98 life movement - ... -
Assembly Programming for IDIOTSOk are there any websites guides for what opcodes do in a z80 or books... but for really really thick people like me :-) Something along the lines …
... />
what does HLT do (HALT = Halts the processor )
halt the processor your program would ... -
contended memory...so memory contention on the toastrack and the grey +2 is in the wrong place compared to the documentation, yet the +2a/b and +3 it is in the correct …
so memory contention on the toastrack and the grey +2 is in the wrong place compared to the documentation, yet the +2a/b and +3 it is in the correct place
can it be altered on the toastrack and grey +2 to match the the +2a/b and +3? -
yeah - unix for zx spectrumI started a new hobby project. An operating system for ZX Spectrum. A unix clone. Talked to my friend about it and he asked me what if after I'm done…
... generating dangerous code (such as HALT, IMn, EI, DI). Assembler shall ... -
Help?Hi All, I wonder if anyone has a few minutes to look at this bit of code I'm working on. I'm trying to move to sprites and want to do it with a scr…
... address
inc (hl)
halt ;just so I can see ... what's going on.
halt
ret
sprite ld ... -
Contention: LDI vs LD (ss), rAccording c.s.s. FAQ: instruction LD (ss),r breakdowns as pc:4,[b]ss:3[/b] and LDI as pc:4,pc+1:4,hl:3,[b]de:3,de:1 x 2[/b] can anyone explain why …
... ] means that DE pointing to contended memory introduces 3 delays ? -
IM2 calls to player routine on 128k?Hi all, Apologies for being crap, and not even in a funky, skillo kind of way but it's been over 20 years since I last wrote anything in machine cod…
... calling the play routine before halt keeps munging my registers around ... -
FAO: Maintainers of ZX Spectrum Technical WikiThere's some odd write-up in French (???) in the contended memory article [URL="http://scratchpad.wikia.com/wiki/Contended_memory"]here[/URL]. I'm …
There's some odd write-up in French (???) in the contended memory article [URL="http://scratchpad.wikia.com/wiki/Contended_memory"]here[/URL].
I'm guessing this has zilch to do with speccy in general and contended memory in particular. ;) -
Jet Set Willy Turbo edition!Improve the speed of the game with just a few pokes! Do the standard CLEAR 32767 : LOAD "" CODE to get at the BASIC loader (see Your Spectrum issue …
... -buffer wasn't kept in contended memory) The LDI instructions are ... -
Issue 3V - anyone got one?As the title says really! :) According to [url]http://www.users.globalnet.co.uk/~jg27paw4/yr07/yr07_33.htm[/url] issue 3V motherboards have 64K RAM …
... - including one bank which is contended - is a major revision, and ... -
Anyone interested in a ZS Scorpion 256 Turbo+?[url]http://zx.pk.ru/showthread.php?t=16169[/url] This guy is producing PCBs and I'd arrange a mass order for europe if there's enough interest. I'd…
... onboard. Has 256k of non-contended RAM in this configuration (runs ... -
128K Contention - How to get it right?With my recent hardware hackery, I've built a 128K (toastrack) clone. I can't quite get the contention right though. What I'm lack is a clear descri…
... B0 implies odd pages are contended, however banks 5-7 should ... be contended on a 128.... or is ... -
128K+2A/+3 RAM layoutDoes anybody know how physical RAM is mapped to ZX 128k+2a/+3 address space ? There are four 64Kx4 chips IC4-IC7. IC4-IC5 seems to be contended (vide…
... . IC4-IC5 seems to be contended (video RAM). It would mean ... -
Justin Beeper - new demo for the unexpanded 16K Speccy[img]http://pouet.net/screenshots/57726.png[/img] This was my entry for this weekend's [url=http://www.sunrisedemoparty.co.uk/]Sunrise[/url] demo pa…
... ROM. And doing everything in contended RAM means you're quite ... -
AGD 2.6 WoesThis was originally in the New Game Ideas section but thought this would be the best place to post this: I'm no programmer, hence i'm using the exce…
... on, then come to a halt at the other higher/lower ... -
What paging scheme is the "standard" for 128K models?Sinclair implemented an arrangement so that even numbered pages are non-contended, and odd numbered pages are contended (quoting from memory, haven't…
... even numbered pages are non-contended, and odd numbered pages are ... contended (quoting from memory, haven't ... 0-3 to be non-contended, and 4-7 to be ... contended. So, regarding this difference, what ... -
A 30th Anniversary ProjectHappy new year (belatedly...) So with the 30th anniversary approaching, I've decided to do a hardware project to celebrate it. Something hands-on (o…
... output gets halted every time contended memory is used (so isn ... -
A z88dk + sp1 demo (with source)Since nowadays people are still wondering about how difficult it is to make something in z88dk, I thought I just put a very simple demo to show how e…
Since nowadays people are still wondering about how difficult it is to make something in z88dk, I thought I just put a very simple demo to show how easy it actually is. (Actually I've already published this one some time ago, but this time the source is ... -
Precisely timed loops in assemblyI'm looking for a way to make my code stop until the raster has reached the lower screen border (right after having drawn the last pixel line). I und…
... ). I understand that I should HALT first to wait until the ... -
A new multicolor engine called BIFROST*I'm glad to announce the release of a new multicolor engine implemented by yours truly, including high quality 16x16 tiles designed by R-Tape: [IMG]…
... it would just need to HALT first to synchronize and avoid ... -
Multicolour demo using z88dk + BIFROST* (+source)This is just a demo to show how to show multicolour using z88dk, using the BIFROST* engine (more info [URL="http://www.worldofspectrum.org/forums/sho…
This is just a demo to show how to show multicolour using z88dk, using the BIFROST* engine (more info [URL="http://www.worldofspectrum.org/forums/showthread.php?p=608777"]here[/URL]).
[IMG]http://www.image-share.com/upload/1337/164.png[/IMG]< ... -
Strange behaviour in real hardware but not in emulatorsWell, at least not in any emulator I've tried. I've been reported by fellow forum member Macc that both our Maritrini Monster Slayer and Retroworks'…
... crashes can happen if a contended RAM page is paged in ... -
28-character wide multicolour(ish) on 48k SpectrumLong-time lurker here... I've always been interested in rainbow effects on the 48k Spectrum, mainly from a perspective of "Just what [I]would [/I]ha…
... /> LD B,L
TSLP3 HALT ; Hang around, modifying the instructions ... -
How do you open a port for a game?Hello all I am trying to get a game running via multiplayer.It doesn't want to let me do this and the customer support has told me to open your port…
... have come to a shuddering halt!.
This is not ... -
What's wrong with this code ?OK, working my way through Jonathan Cauldwells 'How To' tome and I can't get the following to run in either spin or basin. ( iused the assembler in b…
... splayr ; show player.
halt ; delay.
; Jump back ... -
JSpeccy v0.90Hi4all, A new JSpeccy version has been released at my project webpage. This new release have many corrections, some optimizations and a few new feat…
... between 0xC0-0xFF and a contended page is selected on the ... -
ULA TEST 3 results on real hardwareHi guys, I'm writing small spectrum emulator and I wanna implement precise emulation for different spectrum models :-) I found nice test for conten…
... /> I found nice test for contended memory - [URL="http://wizard.ae ...
