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Convert AT co-ordinates to PLOT co-ordinatesHow do you convert the 2 from MC? I don't know how to convert the vertical value as they're differently ordered... Heres what I have so far: [CODE]…
...
x defb 0
y defb 0 ;calculated plot points
ld (x),a ;store vertical plot point
ret[/CODE] -
Better arrangement for video memory?While doing some documentation work for the ZX-Uno project, I compared the advantages of the weird layout of the ZX Spectrum against a linear layout.…
... the X,Y coordinates of a pixel needs some rotate and mask ... often, except maybe for the PLOT, DRAW and CIRCLE routines, which ... uk/
;INPUT: C=coordinate X, B=coordinate Y.
;OUTPUT ... /> [code]
;INPUT: C=coordinate X, B=coordinate Y.
;OUTPUT ... -
Drawing some spritesI figured I want to draw some sprites. My target was to do a 16x16 masked sprite. There's no clearing here, just drawing the sprites. My first ite…
... add hl, bc ; add x offset
ex de,hl ... /> and (hl) ; and the mask
inc hl ; increment data ... /> add hl, bc ; add x offset
ld ... br /> ld (hl), a ; plot pixel to screen
inc ... -
Textured Scanline Flood Fill for ZX Spectrum 48KPity that it's quite hard to contribute code to WoS in a straightforward manner. Recently, I have created a textured/hatched fill M/C routine for the…
... TO 20
110 LET x=40+RND*176
120 ... +RND*30
140 CIRCLE x,y,r
200 ... fill
210 POKE 63694,x: REM x
220 POKE 63695 ... -
Speccy machine code info where is it?Recently I've been trying to learn Z80 and I've managed to make limited progress (some of my routines even compile now!) but I seem to be having trou…
... to pixel coordinates:
X
CCCCCTTT
... in the screen byte to plot, as bit position from ... it's 0 so we plot the first bit on ... from x,y coordinates to screen address and pixel mask. Most ... B holds the pixel mask for that screen byte:< ... -
Game Programming Source Code & Startup HelpHi there, I'm planning on porting an existing commercial title to the speccy. I'm in the process of disassembling the original code and commenting i…
... />
- Test what step in X-axis you need for sprites ... use 2-pixel step in x-axis, thus you need 4 ...
POP BC ; c - mask, b - graphics
LD A ... into tables. Excellent example is PLOT routine.
- don't ... -
Preferred way of determining Y co-ord in assembly?I know of 2 ways of calculating the y-cord of a pixel row for the speccy in assembly. One is to calculate the address by ways of shifting and masking…
... x coord
defb 57 ;y coord
MAIN call plot ... /> ld a,h ;Mask lower 3 bits of h ... ret ;EXIT!
plot ld BC, (coord) ;load the ... -
Bresenham's line algorithmHelp - I really am struggling to get my head around this algorithm. I don't know why, I coped with Cordic (SIN/COS) and integer divide routines (/10 …
... t cope with 16-bit X/Y values. I'm ... or at least 9-bit) X/Y values so I can ... resolutions and calls a plot function to plot points and this contributes ... go with screen addresses and mask for plotting in one ... a good way to plot lines of variable thickness :) -
Z88DK/SP1 library u_malloc() questionHi All, It may possibly be more appropriate for me to post this on the Z88DK forum, but I know quite a few WoSSers have used Z88DK, so here goes:- …
... of it. Should you accidentally plot to an odd horizontal pixel ... to translate a graphic or mask byte to its shifted version ... = y coord of next cell; x = x coord of next cell;
ua_list[i++]=sp1_GetUpdateStruct(y,x);
}
ua_list[i]=0 ... -
PLOT and DRAW in machine codeHow do you go about it? If I posted a really simple BASIC instruction could someone do a machine code routine so I could learn from it? I wouldnt k…
... ):
[code]
PLOT:
17 ; enter: l ... = pix X 0..255
18 ; h ... /> ld b,a ; b = pixel mask
call PIX2SCR ; compute ... bit address in memory)
X coordinate (pixel 0-255): CCCC ... -
SE Basic IV Buffy v4.1 source (WIP)I've been doing a major refactor on the SE Basic source and I'd appreciate a code review from anyone who has time to look at it. I've almost certainl…
... %11110000 ; else use normal mask
inverse_1a:< ... enter calculator
fabs ; x, y, z
frstk ... ; exit calculator
jr plot ; immediate jump
fmove ; x, y, z, z
... -
Z88DK NOOB cplot INK colorHi I am a complete NOOB with Z88DK, I am trying to draw colored circles. How does ink, paper and border work with Z88DK. I started trying to wo…
... mask;
address = zx_pxy2saddr(x,y,&mask);
*address |= mask ... screen address
; e = mask byte
ld ... /> ld (hl),a ; plot pixel
... /> ld (de),a ; plot pixel
AY musicThis is a format I'm proposing for an AY music player. If anyone can see any problems or anywhere it can be improved please say so. An AY music form…
... depth control - increase tone every x frames by y depth
A Arpeggio - 4bit rate 4bit x tones 4bit y tones - alternate ... 1byte - depth
Arpeggio 1byte - x+y semitones
Vibrato and ... - 4bit noise, 1bit noise mask, 1bit tone mask 1 bit looping point ...I like Mask.Im the only man who like Mask from Gremlin?? I readed reviews on SU and got low ratings.. well I liked a lot its gameplay and the way you get the le…
... the only man who like Mask from Gremlin??
I ... begin..
I like Mask =)I guess is a good ...Native OS X port of Fuse availableA beta version of Fredrick Meunier's native OS X port of Fuse, the Free errr... Unix Spectrum Emulator is now available from Fuse's homepage: [url="…
... Fredrick Meunier's native OS X port of Fuse, the Free ...speccy emulator on OS Xhi there i am trying to use ZXSP on OS X but it won't load TAP files, and that it only supports .SNA and Z80 files. can i convert TAP files to .SNA o…
... to use ZXSP on OS X but it won't load ... recomend an emulator for OS X.
thanks in advance ...ANNOUNCE: Fuse 0.6.0 for Mac OS XHot on the heels of the UNIX release of Fuse 0.6.0, the native Mac OS X port is now released. It has all the great features of Fuse 0.6.0 plus: * Wa…
H.E.X. music question"Go to Hell 2: Soft & Cuddly" by Triple Six has a (pretty good, in my opinion) tune by a band identified in the MP3 tag as "H.E.X.". My questions are…
... MP3 tag as "H.E.X.". My questions are as follows ... tune made by H.E.X. specifficaly for this game (and ... />
2) Did H.E.X. actually exist as a band ...ArtistryIn my younger days (and to a certain extent, now) I was always intrigued about how the loading screens were constructed. Back then I'd assumed it was…
... was with a lot of PLOT and DRAW statements. Not being ... an expert on PLOT and DRAW in those days ... fill it:
PAINT x,y,c1,c2
...where x and y are coordinates to ...ANNOUNCE: Fuse 0.6.1 for Mac OS XFollowing the release of Fuse 0.6.1 for UNIX is Fuse 0.6.1 for Mac OS X. It also features competition mode for the Speccy Tour as well as all the en…
... .6.1 for Mac OS X.
It also features ... .
Other Mac OS X specific changes for this version ...Ok Dokey, ive got 700+ Dupes to shift ;) Swapsie??I will sell the below, but id rather swap for missing tapes i dont have on a 1:1 basis. if you would like to swap send a list of your dupes to me at …
... /> Jack the Nipper +Inst
Mask
Take 4
Techno ... /> Operation Wolf x 4
Platoon x 2
Predator x 2
Rainbow Islands x 2
Rambo x 2
Rampage x 2
x 4
Match Point x 2
Planetoids x 3
Scrabble x ...ANNOUNCE: Fuse for Mac OS X 0.6.1.1Following on from the release of Fuse 0.6.1.1 is the release of Fuse for Mac OS X 0.6.1.1. This release fixes various problems with RZX recording wh…
Dizzy X-Journey To Russia - English translation in 48/128 version & FIX of Abe's Mission-MissionHello there! Last week, there was discovered English translation of Russian game Dizzy X-Journey To Russia on the Internet. But it was available onl…
... translation of Russian game Dizzy X-Journey To Russia on the ...Dizzy X-Journey To Russia - English translation in 48/128 version & FIX of Abe's Mission-MissionHello there! Last week, there was discovered English translation of Russian game Dizzy X-Journey To Russia on the Internet. But it was available onl…
... translation of Russian game Dizzy X-Journey To Russia on the ...Fuse for Mac OS X 0.6.2.1 releasedFuse for Mac OS X 0.6.2.1 and the Fuse 0.6.2 utilities are now available for download from the Fuse homepage <http://fuse-emulator.sourceforge.net…
Fuse for Mac OS X 0.6.2.1 and ... .
New Mac OS X specific features include:
Apple ...Fuse slower on OS X Panther?I've been using Fuse on my iBook G3 700 for quite a while now. Since I've upgraded to OS X Panther I'm experiencing serious slowdowns in Fuse. Most n…
... I've upgraded to OS X Panther I'm experiencing serious ...New MapsBeyond the Ice Palace [url="http://zx-maps.wz.cz/map.php?id=IcePalace"]http://zx-maps.wz.cz/map.php?id=IcePalace[/url] Bruce Lee (256-colour version…
... =BruceLee256[/url]
Fox(x) Fights Back
[url="http ... ?id=FoxFightsBack[/url]
Mask 3 - Venom Strikes Back
X or only one (how I ...problems with MaskI have problems with Mask. I want to make a RZX of this one (one per stage) My problem is that the .TZX available on WOS do not load on Spectaculato…
I have problems with Mask. I want to make a ...ANNOUNCE: Fuse for Mac OS X 0.7.0Following the release of Fuse 0.7.0 is the unsurprising release of Fuse for Mac OS X 0.7.0 which should be available for download shortly at the Fuse…
... of Fuse for Mac OS X 0.7.0 which should ... release only supports Max OS X 10.3, if you are ... an earlier version of OS X, you should use 0.6 ...
