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No-tearing (“vsync”) Full Screen FadeSeeing as most screen fades exhibit visible tearing, I wrote my own routine which does away with that problem. Simple, effective, short, and fully re…
... of attr area
halt ;wait for beginning of frame ... -
The I register pointing to $40–$7f causes ULA snow and a crash. Or does it?I have heard it from numerous sources, including a few members of this forum, that 128K/+2 machines crash if the I register points to a range of $40–…
... relocated the code to the contended memory (as was suggested by ... -
SpecIde updated!Hi, all! In these past months I've been brushing up a bit my emulator, SpecIde, a.k.a. the least efficient emulator in the world. At this momen…
... the extras. (Issue 2/3, contended memory, floating bus, snow effect ... Spectrum 128K/+2. (Also with contended memory, floating bus, snow effect ... new; I've implemented the contended memory, floating bus port...)
Z80onDSK now compatible with +3e with ZXMMC or similarJust updated my utility to work on Spectrums equipped with +3e ROMs and IDE storage. I've tested this with ZXMMC at the moment but don't think there …
... upper mem to be
║ contended which may cause issues with ...ZEsarUX 8.1 stableHi! I've uploaded a new ZEsarUX 8.1 stable version. Go to the github released webpage to download it: https://github.com/chernandezba/zesaru…
...
-added copper opcodes NOOP, HALT
-increased tbblue.mmc MMC ...Moritz The Striker for the 48k SpectrumDownload: https://www.dropbox.com/s/bbb7n2ipv7ed4k1/Moritz%20The%20Striker%20-%2048k%20Release.zip?fbclid=IwAR2ZdaHdIFQEKGt5raugVaxeudTcQDJT-nQgSk…
... please STOP the tape or halt the tape image if using ...why am i getting b integer out of range in this code?ive tried running this in spin but thats what i get [code]main org 40000; ; We want a black screen. ld a,71 ; white ink (7) on black paper (0…
... /> call splayr ; show player.
halt ; delay.
; Jump back to ...this code wont give me a random starfieldim using a peice of code that ive copied from a book, ignore most of it as it is redundant. for some reason i get a strange random starfield instead …
... /> call splayr ; show player.
halt ; delay.
; Jump back to ...How to write a simple C+asm horizontal scrolling game (Tutorial, z88dk)[b]How to write a simple C/asm horizontal scrolling game[/b] [b]Note:[/b] This tutorial has multiple parts... I am still writing but this first pa…
... /> scroll_left();
#asm
halt
#endasm
}
HALT instruction, which does nothing much ...specie external keyboard - revision one -[img]https://photos.app.goo.gl/pqeYpXnLqTwYkLvKA[/img] revision one of my external keyboard ... wow it actually worked after a little bit of crash…
... . ???. thinking i may have to halt it as soon as it ...Spud v0.306I hid this in another thread so I suppose I should put it here. Spud v0.306 Read the Changelog for the all exciting new stuff that won't work p…
... than just files).
Proper Halt emulation (who would have thought ...Zero v0.8Pigs can apparently fly because it's the v0.8 update of Zero that no one asked for but is out for public consumption anyway. Grab it [url="https:/…
... snapshot (woody).
- Fixed incorrect HALT implementation (ZjoyKiler).
- Fixed incorrect ...Robospec (new project, hopefully useful as a tutorial as well)Starting a new project after my graphics investigations. * It's gonna be a Robotron clone since that's not too ambitious (although I'd like to hav…
... just draw everything after the halt, update, then wait for the ...Console frameworkStill working on Specotron, but at the point where working out the diagonal lines collision is not good at beer o'clock. In the meantime I've knoc…
... /> call prompt
.loop
halt
call scankeys
call ...Emulator compatibility with real SpectrumHi emulator programmers... Having spotted for the last 6 months that my iPAQ is still missing a Spectrum emulator I started typing last tuesday - an…
... emulation). I don't think contended memory creates many problems (apart ...Your favourite machine apart from The SpectrumI've asked this on a couple of other sites, so now it's time to ask it here: what is your favourite machine, forgetting about the Speccy? For me, it'…
... .5Mhz Z80. The spectrum's contended ram holds up the Z80 ...Your favourite machine apart from The SpectrumI've asked this on a couple of other sites, so now it's time to ask it here: what is your favourite machine, forgetting about the Speccy? For me, it'…
... .
"The spectrum's contended ram holds up the Z80 ... if you execute in the contended RAM - most programmers wouldn't ...Looking for two games (forgot names?)....1. A game where you bounce around as a little ball. It was like a 2d platform game. You have to collect fruit or something. Later on the platforms di…
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…
... put all routines into non-contended memory and make some smart ...Which emulator and assembler?Hi, I am looking to learn z80 assembly language and I feel the best option is a spectrum emulator and an assembler. Can anybody recommend the best …
... don't need all this contended memory and exact ULA stuff ...WANTED: tape replacement for +2?Any tape replacement possible for a +2? My +2 works wonderfully but the incorporated datacorder is simply worn out and won't load ANYTHING. Dirty sig…
... :
ORG 50000
HALT ;synchronize with interrupts
LD ...
OUT (254),A
HALT ;wait 20ms
LD A ...Microdrive woesHi there! Just managed to pick up a 2nd hand Microdrive and interface one... Came with an introductory program which doesn't seem to load. Since its…
... PC is stuck at the HALT instruction at #1303 in the ...Short Z80 QuizQ1) Which program gives different result ? A) XOR A ADD A,A B) XOR A ADC A,A C) SCF ADD A,A D) SCF ADC A,A Q2) What is the equivalent of NEG …
... ) B
6) The HALT state will continue until an ... it will never exit the HALT. Barring an NMI interrupt of ...My own Home Computer It's true. My company are planning to build a new Home Computer. It will use a Z80 CPU running at 6mhz, 128k Ram and will run all Spectrum and ZX81 …
... contains pages 4-7, the contended RAM.
Normal memory ... uncontended RAM, VRAM is the contended RAM.
There seems ... VRAM is used as Spectrum contended memory.
D1 - selects ... have to execute in contended memory to do anything ...ZX Spin 0.4 available for Download.Standard Cut-n-Paste from the CSS post: If all goes well, I'll upload it to WOS on monday. ----------------------------------------- Okay, it's th…
... than true emulation of the contended memory and processor wait states ...Here's a christmas present for you!SE Basic is no longer being developed.
... it can, whilst still maintaining HALT timing and FLASH stuff. PAUSE ...
