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Question about digitized sound and videoI searched the forums and couldn't find the answer, so here it goes. Regarding digitized sound: I remember reading an article long ago about a vid…
... file, and having my player routine just scan all disk sectors ... worked nicely.
My routine's using delta compression, and ... ", so it looks like I pre-empted this conversation about LDIR ... -
Random access, file sizes and more.A few days ago Aowen mentioned that random access to saved data is not a problem. Here are my thoughts, doubts and suggestions regarding this subject…
... some sort of machine code routine or firmware update becomes available ... then call a m.c. routine from Basic that will playback ... , imagine playing back all that pre-rendered data with a few ... -
Skool Daze disassemblyWhile developing [url="http://pyskool.wordpress.com/"]Pyskool[/url], I've also been putting together a disassembly of Skool Daze and Back to Skool, m…
... the top half of the sprite.
That way, you ... is facing. Keeps the plotting routine about the same speed for ... -
Random access, file sizes and more.A few days ago Aowen mentioned that random access to saved data is not a problem. Here are my thoughts, doubts and suggestions regarding this subject…
... some sort of machine code routine or firmware update becomes available ... then call a m.c. routine from Basic that will playback ... , imagine playing back all that pre-rendered data with a few ... have trouble with an AY routine running in the interrupt, but ... -
Hello everyone. (+ a question.)Hello everyone. I have been visiting WOS since 1999 but I have only recently signed up for the forums. So, first of all, thanks to those who are main…
... schematics and looks like the pre +3 models have 5 keyboard ... some internal decoding (of the shifted keys & key combinations I ... -
A scrolling starfield - help needed!I have been messing on my speccy again recently and tried to do a scrolling (parallax - maybe) starfield. I know how to scroll using machine code but…
Here's my routine which draws a random starfield ( ... /> LD A,E ; save the sprite rotation before it gets overwritten ... -
A scrolling starfield - help needed!I have been messing on my speccy again recently and tried to do a scrolling (parallax - maybe) starfield. I know how to scroll using machine code but…
... stars=slower speed. But this routine is not optimised for speed ... /> LD A,E ; save the sprite rotation before it gets overwritten ... -
Do you really want to play a new cool, interesting, but rather hard game?Just thinking about it... For example, someone will create a game. BIG game. BIG BIG game, with multiple loading scheme, numerous rewind blablabla (o…
... -buffer screen, your interrupt routine, pixel address table, pre-shift table (etc ... -
Jetpac questionHi all, I just bought a copy of Jetpac off of Ebay and I'm having problems. To start, I'm trying to play it on an issue 2 Speccy with Interface 1, 2 …
...
;Use embedded custom PRINTING routine for this program
QUICKPRINTSTR ...
; Simplified version of library routine
; This version - no ... 2,1,0 of D shifted left 5 times (rotated ... such that the screen blank routine can use it
... -
Understanding the StackSorry folks. I guess I'm going to be a pain for a little while. Hope it's ok with everyone. I'm currently studying the stack and wrote the little pr…
... may be part of a sprite rendering routine:
[CODE]
POP ... -
Understanding the StackSorry folks. I guess I'm going to be a pain for a little while. Hope it's ok with everyone. I'm currently studying the stack and wrote the little pr…
... may be part of a sprite rendering routine:
[CODE]
POP ... does DE point to - the sprite to be rendered? In which ... -
CSSCGC 2008 has now officially begunFor coming last in the 2007 crap game compo, I have the honour and privilege of hosting CSSCGC 2008! I have now put up the CSSCGC 2008 website at …
... first was the hardware detection routine (very nifty) and second was ... I just liked the car sprite. So that's what happened ... -
Data bus at interrupt timeIt is "well known" that some peripherals can put values other than 0xff on the data bus at interrupt time, thus meaning that IM2 is slightly more fid…
... the peripheral ID is. With Sprite Pack, a good value to ... vector table. The interrupt service routine called will always be at ... -
New Spectrum game - Banger ManagementThe game I produced for the Byte Back event is now available for download: [url]http://www.byte-back.info/hbchallenge.html[/url] Now, does anybody …
... . Do you have any special pre-arrangements in order to make ... copy and paste? Everything from sprite creation to text font and ... -
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 …
... be set up, with each routine being given it's own ... according to what it does (sprite, scroll, keyboard, sound, etc). That ... -
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 …
... HL to DE. In this routine, it's used to save ... draw a bit of the sprite, then POP DE to get ... stack too. Whenever an interrupt routine is called, or someone uses ... stuff within your own interrupt routine anyway. -
Fastest Block Drawing Code?Following on from my scrolling thread [URL="http://www.worldofspectrum.org/forums/showthread.php?p=351304#post351304"](http://www.worldofspectrum.org…
... to go to from a pre-calculated table. It's far ... you try to exit the routine or re-enable interrupts. -
Fastest Block Drawing Code?Following on from my scrolling thread [URL="http://www.worldofspectrum.org/forums/showthread.php?p=351304#post351304"](http://www.worldofspectrum.org…
... block (ie thirds) boundaries. The sprite routines can be equally quick ... a general "next char" address routine to find the screen address ... -
Fastest Block Drawing Code?Following on from my scrolling thread [URL="http://www.worldofspectrum.org/forums/showthread.php?p=351304#post351304"](http://www.worldofspectrum.org…
... to go to from a pre-calculated table. It's far ... you try to exit the routine or re-enable interrupts.[/quote ... -
Brand new River Raid remake?one of my friend is trying to make a riverraid remake on flash just to have fun, I checked zx spectrum port of river raid. it is bad, really bad, jer…
... around 5K for the interrupt routine to do everything in one ... of character line can be pre-setted before screen rendering starts ... never seen the multicolor draw routine, perhaps you could check it ... -
River Raid Tech DemoJust a little something to look at. Enjoy. [URL="http://www.joefish.co.uk/speccy/Joefish_River_Raid_Tech_Demo_01.tap"]Joefish_River_Raid_Tech_Demo_…
... to see is the display routine.
We could make a ... ) and then call a default routine which would make the display ... 's not quite the same routine. The one I listed there ... be possible for the main sprite?[/QUOTE]
Not the ... -
Skool Daze disassemblyWhile developing [url="http://pyskool.wordpress.com/"]Pyskool[/url], I've also been putting together a disassembly of Skool Daze and Back to Skool, m…
... demand
2) Back-port sprite code from BTS so we ... to speed up the scroll routine.
4) Add new characters ... -
Skool Daze disassemblyWhile developing [url="http://pyskool.wordpress.com/"]Pyskool[/url], I've also been putting together a disassembly of Skool Daze and Back to Skool, m…
... demand
2) Back-port sprite code from BTS so we ... to speed up the scroll routine.
4) Add new characters ... -
Back to Skool disassemblyAs mentioned in [url="http://www.worldofspectrum.org/forums/showthread.php?t=22841"]this thread[/url], I've been working on a disassembly of Back to …
... a packed-BCD number is shifted one digit left or right ... multiplication routine for BCD numbers, in which partial results are shifted and ... -
wavide: WAV player for DivIDEPrompted by an email from zxbruno yesterday, cobbled together much quicker than expected... [url]ftp://ftp.untergrund.net/users/gasman/zx/wavide/[/u…
... /> Hmm, it shouldn't... this routine ought to sound better than ... . By comparison, the Samplepack / Wav2ay routine uses 11025Hz samples, so this ... the sample through an intensive pre-processing stage.)
[quote ... -
Where's the border line between a Spectrum and something else?I mean: there are purists out there that consider that anything that is not a true Sinclair Spectrum, with a true Z80 and a true ULA, and at most, 48…
... cases, modern OSs are all pre-emptive, CPUs are very very ... without the slightest frame drop, sprite jerk, occasional flicker, etc. on ... -
New BUZZSAW+ Demo, No.2OK everybody, here's the latest demo of [I]Buzzsaw[/I]. This includes the title screen I wrote in Corfu with control selection, some new sprites and…
... use always black paper for sprite colors ? if then you could ... 36 bytes per monster. depack routine hardly take more than space ... -
New BUZZSAW+ Demo, No.2OK everybody, here's the latest demo of [I]Buzzsaw[/I]. This includes the title screen I wrote in Corfu with control selection, some new sprites and…
... for each row of the sprite. Even with that I can ... can use a bit slower routine for drawing (say 10-11 ... -
New BUZZSAW+ Demo, No.2OK everybody, here's the latest demo of [I]Buzzsaw[/I]. This includes the title screen I wrote in Corfu with control selection, some new sprites and…
... can use a bit slower routine for drawing (say 10-11 ... . It can do one more sprite, which I haven't brought ... it takes to draw one sprite, and varies between machine types ...
