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128K - demos from Di Halt 2012Demos: [url]http://zx.pk.ru/attachment.php?attachmentid=36377&d=1341756942[/url] [url]http://zx.pk.ru/attachment.php?attachmentid=36378&d=134175696…
Demos:
[url]http://zx.pk.ru/attachment.php?attachmentid=36377&d=1341756942[/url]
[url]http://zx.pk.ru/attachment.php?attachmentid=36378&d=1341756961[/url]
[url]http://zx.pk.ru/attachment.php?attachmentid=36379&d= ... -
BIFROST* Advanced Programming - part 1In BIFROST*, it's much easier to just make changes in the tile map and let the engine automatically draw & animate everything in multicolor for you. …
In BIFROST*, it's much easier to just make changes in the tile map and let the engine automatically draw & animate everything in multicolor for you. Even so, sometimes experienced developers may decide to access BIFROST* internal routines directly, for ... -
BIFROST* Advanced Programming - part 2This second demo shows animated and moving tiles together, and also how to implement collision detection. This knowledge should be enough to implemen…
... ) {
// frame sync
asm("halt");
}
// erase tiles ... -
BIFROST* Advanced Programming - part 3This new demo demonstrates the BIFROST* built-in sprite support that I mentioned before. In BIFROST*, "sprite tiles" are 2 special tiles that BIFROS…
... />
// frame sync
asm("halt");
// erase and move ... ) {
// frame sync
asm("halt");
}
// erase and ... -
BIFROST* Advanced Programming - part 4In previous posts I demonstrated how to move multicolor tiles up and down smoothly by a single pixel, and sideways by an entire char (8 pixels). Thi…
... ) {
// frame sync
asm("halt");
}
// erase tiles ... -
BIFROST* Advanced Programming - part 5In my [URL="http://www.worldofspectrum.org/forums/showthread.php?t=40437"]previous post[/URL] I demonstrated how to move multicolor images smoothly i…
... ) {
// frame sync
asm("halt");
}
// erase player ... -
BIFROST* Advanced Programming - part 6The purpose of this demo is somewhat different from previous ones. Instead of teaching a new technique, the main goal here is to demonstrate how much…
... 14; ++f) {
asm("halt");
}
... /> // frame sync
asm("halt");
// player ... /> // frame sync
asm("halt");
// erase enemy ... -
JSpeccy v0.92A new JSpeccy version has been released. Summary of changes, - Screen redrawing is a bit optimized now and a bug when speed > 1 has been corrected. …
Using RST 16 and udg flickerHi there! I'm using UDGs and RST 16 to make a simple canyon bomber game. I've got the game mechanics working ( finally ) but now I'd like to make …
... />
I have used a halt instruction before my draw operation ...Tolerable cut scenes!I must be getting old as games with too much talking and/or cut scenes really does my nut in. I prefer it if I can switch off the voice acting and ju…
... the conveyor and it said "halt.. blah blah blah blah blah ...Hacker Chris' Christmas Demo doesn't work[url=http://www.worldofspectrum.org/infoseekid.cgi?id=0007314]Christmas Demo[/url] .z80 file from WOS doesn't work for me. I tested in Fuse and SpecE…
... program is stuck in a HALT instruction with maskable interrupt disabled ...Game loopJust working on my first ever Spectrum game, and am struggling to work out what the game-loop should look like. I've got interrupts enabled (mode 2)…
... (pseudo code):
loop: halt ; wait for interrupt to occur ... I was thinking about the halt instruction I then thought it ... :
loop: update_stuff
halt
clear_sprites (from old position ...Questions about Vortex Tracker II exported songsHi, I have been experimenting with Vortex Tracker II lately and have a couple of questions. By exporting the song to TAP format, a file is generated…
VT2 hobeta player?I am trying to build something with a hobeta with player exported from vortex tracker ii. I want to be able to run the file on a standard 128K. I am …
Retro Computers/Gaming Movies & TV ShowsThere's some really interesting retro computer/gaming related movies and TV shows out there at the moment, with some others in production. I've put t…
... =nv_sr_2[/url]
[b]Halt and Catch Fire (TV SHow ...Slow/fast games - change speedSome ZX games are too slow or too fast. Problem with speed is aslo in russian ZX games or thanks to different memory layout on zx128 and +2a models. …
... games if you remove some HALT instructions. For example in russian ... . One POKE 43315,0 replace HALT instruction with NOP and game ... .
Not always is HALT instruction use for screen synchronisation ...Halt and Catch FireAnyone watching this tv show? a bit like MadMen, but set on the early 80's (83 I think), and spent in the PC industry. bit of the underdog tale a…
Anyone watching this tv show?
a bit like MadMen, but set on the early 80's (83 I think), and spent in the PC industry.
bit of the underdog tale about a small company that wants to rival with IBM.
Finding it quite ...Ensure my interrupt handler begins at the same T-stateHi! Is there a way to ensure that an IM 2 interrupt handler starts always at the same T-state (related to the moment the ULA triggers the INT line, w…
... main loop is full of HALT instructions, with some instructions to ... of instructions that aren't HALT last a number of cycles ...SpecBAS 0.830 Released!Hi guys - A new official release of SpecBAS has been released. The full changelog is below, but for now here's the download: [url]https://sites.goo…
... messages (including 0:OK) would halt all sound when displayed - now ...Playing AY music on the SpeccyCan anyone help with playing AY ripped music on the Speccy? So, let's say I want to play some ripped AY music, such as: [url]ftp://ftp.worldofspect…
... data in tra_0_2.BIN per HALT command (every 50th sec) to ...
EI
LOOP:
HALT
CALL 51802
JR ...TV Pal, odd and even framesI have been researching, but haven't found any real interesting information on this subject, so far. What I mean is, since TV PAL signal is interl…
... ) frame, since they just use HALT to sync on the Spectrum ...z80 assembly helpEver since I was a child I wanted to program my zx81 then my zx spectrum + 2. However, it was such a mystical beast and I only ever used BASIC not kn…
... ; length of delay.
delay0 halt ; wait for an interrupt.
delay0 halt ??
djnz delay0 ??
ret ...Text scroller and custom fontYesterday I was testing this text scroll routine taken from Jonathan Cauldwell's Intro Maker (labels have been inserted to allow partial code relocab…
... /> JR NZ, L_35381
L_35387: HALT
CALL 00654
INC ...20+ years of X128!Hard to believe, but it's true! I was inspired by Gerton Lunter's Z80 (which I had used for years) and I wanted to make my own Spectrum emulator. …
... proper releases ground to a halt with V0.94 on 02 ...ZXDS 1.3.4Hello, to celebrate the 35th Spectrum (and 10th ZXDS) anniversary, I have prepared [url="http://zxds.raxoft.cz/"]new ZXDS release[/url]. It fixes …
... very subtle contention bug in HALT emulation, which no one will ...Double Buffering Artefacts on Real HardwareI have a project that I've played around with for a while and always tested using emulators, either ZX Spin or Spectaculator. It is a 128k game th…
... switch the screen after a HALT instruction.
Of course ...Key repeat weirdness with EI & IYI finally (after 35 years!) decided to write something a) for 48k speccy b) in z80 assembler. It's been over 20 years since I've written anything in …
... because of that I use HALT instruction to wait for vertical ... retrace. And HALT does not seem to work ... wait for vertical retrace without HALT & EI?
