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Address bus contents (i.e. PC) during execution of HALTI'm wondering if anyone can tell me what's placed on the address bus during execution of HALT, beyond the initial M1 cycle. The Z80 user manual state…
... interrupt acknowledgement not to deal with HALT as a special case, ... contains the following code for HALT:
[CODE] case ... stuck with the approach of only advancing PC after the HALT ... the opcode fetch after a HALT could actually trigger paging ... -
New game: Krunel[IMG]http://www.speccy.pl/images/news/krunel_00.png[/IMG] Game name: Krunel Type: logical Author/group: [url]speccy.pl[/url] Platform: ZX Spectrum …
... ) instructions (in kemp.joy routines) with LD A,0 then game ... ). Can help add game timing via HALT instructions and game speed will ... add manual selection on autodetection (HALT, IN A,(1F), INC A ... -
New version emulator ZEsarUX-1.1Hi I have uploaded a new version of my ZX80/81/Spectrum emulator on [url]http://sourceforge.net/projects/zesarux/[/url] Changes are: Added suppo…
... support for loading .z80 snapshots with unsupported machines like Spectrum +3 ... /> Improved view cpu registers option with opcode dissassemble
Fixed opcodes ... /IY(h/l)
Fixed timing with some opcodes. Better display of ... -
New version emulator ZEsarUX-2.0Hi I have uploaded a new version of my ZX80/81/Spectrum/Z88 emulator on [url]http://sourceforge.net/projects/zesarux/[/url] Changes are: Added Ca…
... memory paging enabled
Fixed timing with CALL opcodes, better ZX80/81 ... -
Sprites flickeringI am trying to write a Spectrum game in machine code. I am still a beginner in programming, however I did much progress recently, i believe. Now I am…
... sure...
1. I start with HALT command to begin my routine ... with new interrupt
2. Then ... -
Mayhem Accelerator - Prototype Complete [Sam CoupI am now pleased to announce that on the 8th June the prototype of the Mayhem Accelerator was finally completed. With work on the accelerator start…
... the border area for sample timing with the likes of the Quazar ... run normally on the Sam with or without the Mayhem, even ... phase is now finally over with the prototype completed a few ... -
ZXSpin 0.62 Available nowAs promised (and only a [i]little[/i] past the deadline) here is the latest version of ZXSpin. Many bugs have been fixed, and a few new features add…
[QUOTE=omega;188830]Fuse and EightyOne are out of timing completely...[/QUOTE]
Is this with the latest version of Fuse? I know that one of the recent changes was an alteration of the timing with regards scanlines and wotnot. -
ZXSpin 0.62 Available nowAs promised (and only a [i]little[/i] past the deadline) here is the latest version of ZXSpin. Many bugs have been fixed, and a few new features add…
[QUOTE=icabod;188836]Is this with the latest version of Fuse? ... was an alteration of the timing with regards scanlines and wotnot.[/QUOTE ... -
Oneliner contestHello to you all, I dare you to make a program on 1 BASIC line. Here is the place to sent your ONELINERS [url]http://www.zxspectrum.00freehost.co…
... faster than the original. On timing with a watch, "method 1& ... good at playing speccy games with the sinclair key layout. ... home and often use emulators with the default settings). Sorry ... now has the best chance (with hopefully further optimisations) of ... -
George Carlin is Dead. No, I'm Not Kidding.This has officially ruined my day. [url]http://www.nytimes.com/2008/06/24/arts/24carlin.html?ex=1371960000&en=38c143a26174e026&ei=5124&partner=perma…
... ;281562]I am quite familiar with how much you Brits love ... happened years ago. His comic timing with partner Les Dennis was the ... -
George Carlin is Dead. No, I'm Not Kidding.This has officially ruined my day. [url]http://www.nytimes.com/2008/06/24/arts/24carlin.html?ex=1371960000&en=38c143a26174e026&ei=5124&partner=perma…
... happened years ago. His comic timing with partner Les Dennis was the ... -
George Carlin is Dead. No, I'm Not Kidding.This has officially ruined my day. [url]http://www.nytimes.com/2008/06/24/arts/24carlin.html?ex=1371960000&en=38c143a26174e026&ei=5124&partner=perma…
... happened years ago. His comic timing with partner Les Dennis was the ... -
Custom SAVE Routine work on emulators?Hi, I'm developing a SAVE routine derived from the one present in ROM 48K, and I'm trying to get it work on several emulators (X128, Spectaculator, …
... easy to mess up the timing with writing LOAD/SAVE routines.
with the video display and the ... -
Spectrum AssemblyHi All, Thanks for letting me in... lol Over the last couple of days I started playing my spectrum emu again and then I started thinking about lear…
I wish to have a smooth visible scroll :) With HALT after each pixel string scroll. Like in demo scrolls. That's look nice. So printing in buffer and then moving it cannot be used. I need real screen scroll. -
Spectrum AssemblyHi All, Thanks for letting me in... lol Over the last couple of days I started playing my spectrum emu again and then I started thinking about lear…
... have a smooth visible scroll :) With HALT after each pixel string scroll ... -
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 …
...
Movement can be done with keypresses (like displayed earlier) or ... with the reading of (joystick) ... pixelsized what do you do with the attributes?
timing with OUT-commands.
Dragon Slaying games.St Georges Day. Need to kill Dragons! Games ideas please? NB: Dragons are not our friends, so nothing involving co-operating with the beasts! T…
... the right one) and the timing with which you have to press ... programmed by a sadist....even with multiple save states, I can ... get past the final screen with Singe. :( I've completed the ...How to Write ZX Spectrum Games As some of you may know, it has long been my intention to produce a document which explains pretty much everything I have learned - and am still lea…
...
Chapter Twelve - Timing
The Halt Instruction
The Spectrum ...Bruce lee moviesSo i watched bruce lee "game of death" yesterday,i couldn't help laughing at how bad it looks now,with random clips being inserted and obvious differ…
... I found tricky was the timing with the jumping bits where it ...Bruce lee moviesSo i watched bruce lee "game of death" yesterday,i couldn't help laughing at how bad it looks now,with random clips being inserted and obvious differ…
... I found tricky was the timing with the jumping bits where it ...How to jump in Jungle Trouble?Please can someone help me? I've seen the rzx. I'm sure it's possible. I can't get off the bottom right hand corner. The instructions say to press t…
it's all timing with jungle trouble.. I liked it ...
don't play the pc remake if you think the original is tough :lol:Chip's Challenge rzx incompleteAs the title says, the rzx of Chip's Challenge is incomplete. I know the rzx site is completely seperate to wos but I thought I'd post here anyways.…
... . And it's pretty good timing with your travels.
[quote ...BIFROST* ENGINE 1.2 released!Another improved version of the BIFROST* ENGINE is now available! Download it here: [url]http://www.worldofspectrum.org/infoseekid.cgi?id=0027405[/u…
... -character wide fairly easily now with looped code and a moveable ... if I really push the timing with everything unrolled and fixed addresses ... you 1 in 8 lines with nothing to do so you ...SPECTRA New from Paul FarrowLooks good! Read about it [URL="http://www.fruitcake.plus.com/Sinclair/Spectrum/Spectra/SpectraInterface.htm"]here[/URL]
... /> Then you could try it with the Spectranet first.[/QUOTE]
timing with ULA).
The SPECTRA manual ...SPECTRA New from Paul FarrowLooks good! Read about it [URL="http://www.fruitcake.plus.com/Sinclair/Spectrum/Spectra/SpectraInterface.htm"]here[/URL]
... for SPECTRA to operate (sync timing with ULA).
The SPECTRA manual ... are other things to do with the 128K machine which ... br />
To be compatible with 128K machines more easily, a ... suitable FPGA or CPLD implementation (with some changes it'll be ...Getting PC into HLHello, here's a conundrum for you... Is there a way to obtain the value of the PC register (say into HL) without using absolute addressing such as C…
... 's anything to beat the HALT idea. To get the runtime ... of a USR routine, start with:
HALT : DEC SP : DEC SP ... by starting the USR routine with:
PUSH BC : POP HL ...Surely not Buzzsaw+ Already..?But this game has had such a short development time, how can this be? Free version of [I]Buzzsaw+ (Foxton Locks Mix)[/I] available here: [url]http:…
... the border to align the timing, with the intention of converting them ... . (This comes from mucking about with our radar gear at work ... much more you can do with the beeper without devoting 100 ...
