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JP (HL) confusionokay.... JP nn will jump to memory address nn. JP (HL) ,I assumed would read the contents of memory address HL and jump to the location and be a gre…
... 3 comparison/jumps (3 x 14 cycles same as 42 ... DEFB 0
JP walltile ; 8
DEFB 0
JP ... discussion is primarily about the ZX Spectrum, not the ZX81, ... . The question was not ZX Spectrum related, only asked ... -
IF1Bis problems. The Edge of the Spectrum...Advice is sought from the learned on WoS. I just bought an Interface 1Bis from sunny South Africa. It arrived fast, but unfortunately doesn't work.…
... /> 5. Switch off the ZX Spectrum
6. Connect ... the server applet
8. Hold the joystick to ... position and switch on ZX Spectrum while keeping the ... br /> 10 Switch off the ZX Spectrum
... application by clicking on the X.
After ... -
Space Harrier new loading screenHi, The original screen: [IMG]https://dl.dropboxusercontent.com/u/2616449/spectrum/SpaceHarrier.png[/IMG] and my new version: [IMG]https://dl.dro…
... results might be obtainable with 8?1 attributes than you might ... example of a game using 8?1 attributes, although its approach ... ? all sprites are obscured by 8-pixel wide scenery blocks instead ... a sprite (similar to the approach used in Flappy Bird ZX in ... -
Plea for new hardwareI'm posting this as a poll as I want to judge if I'm a solo loon going on about this, or if people really are interested in either of the following S…
... -
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1/+1 - ZX Spectrum(issue 1-2/3 ... br /> 3/+3 - ZX Spectrum +2a,+2b/+3 8 - Pentagon 128(1991 ... 2048 9 - Profi-1 (v3.x) (ver. 28.09.2006)
New bicolour game: El Stompo.Phew! Finally finished my first game using Einar's fantastic Nirvana engine. [B]El Stompo.[/B] [IMG]http://i1142.photobucket.com/albums/n608/davey…
... sequence of bytes (15 columns x 11 rows = 165 bytes) and ... open the btiles file in ZX-Paintbrush, you will notice that ... btiles 6 and 8 correspond to the stairs image ... (in this particular case, btile 8 must be used at bottom ...Fast and easy read/write of attributes?What are the fastest or easiest ways to check the attributes of tiles on the screen, in BASIC? It seems to be a great way of storing object info. …
... of printing a 2x2 UDG sprite:
(a) Chaining ATs, such ... as PRINT AT y,x;"/\";AT y+1,x;"\/"
(b) Generating ... ]PRINT AT y,x; "/\" ;over 1; paper 8; ink 8;" [30 spaces here ...SpecBAS / SpecOS documentationHi, I just find out about SpecBAS and I was so impressed by the new functions while retaining compatibility with ZX Basic that I've been playing wit…
Hi
Sprite Move moves a sprite from it's current location ... location (the x,y of the screen)
SPRITE MOVE sp1 TO ... offset of the sprite's current location)
SPRITE MOVE sp1,400 ... ,400 STEP 8
will move the sprite to the same ...Tinkering with Nemesis?I thought Nemesis (Gradius) was a poor conversion especially when put next to R-Type. One main problem was the small area and the large size of the s…
Done in a hurry, but the players sprite could be reduced to 16 x 8
[img]http://piskel-imgstore-a.appspot.com/img/7966c597-0d60-11e4-b9e3-b1cf9d3cb06c.gif[/img]Test screens for ZX PrismNot sure that this is *really* the right section for this request, but it's relating to new hardware I'm developing so let's start it off here - a mo…
... ULA+ onto it ;)
ZX Prism's "ULA2" specification allows ... colours to be defined with 8 bits per channel; The current ... manage to implement a tile/sprite mode.
[QUOTE=joefish ... up in the air - including sprite masking. (Read: I thought of ...Tinkering with Nemesis?I thought Nemesis (Gradius) was a poor conversion especially when put next to R-Type. One main problem was the small area and the large size of the s…
RTC module for DIVIDE[IMG]http://velesoft.speccy.cz/other/rtc_module_v01_full_top.jpg[/IMG] [IMG]http://velesoft.speccy.cz/other/rtc_module_v01_full_bottom.jpg[/IMG] [IMG…
... ="http://velesoft.speccy.cz/zx/rtcmodule/index.htm"]http://velesoft ... .speccy.cz/zx/rtcmodule/index.htm[/ ... ]http://velesoft.speccy.cz/zx/rtcmodule/v03/IMGP9738.JPG[/ ... LD C,A ;(C=all 8 fire buttons)
X,MODE
JOYDIR2 ...Block RoutineHi Folks, I want to draw a block on the screen dependent on providing the X,Y,W,H values. I came up with the following: [CODE]100 LET l$=" …
... Step-by-Step Programming: ZX Spectrum and ZX Spectrum+ Graphics" book 3 ... [CODE]1 DEF FN a(x,y,h,v)=USR 63000 ... TO 31: PRINT AT y,x; PAPER RND*7; INK ... $ (RND*80+32): NEXT x: NEXT y
20 ... PUSH HL
LD B,8
PUSH BC
... able to supply the x,y,h,v and ...What if Sinclair had released a 16 bit Spectrum?Had Sir Clive not wasted his companies money on the white elephant that was the C5 and instead focused on competing with his rival computer manufactu…
... close; of the contemporary 8-bits, only the CPC ... had 256?256 pixels with 8 primary colours.
... The NES had 256 x 240 pixels with 54 colour ... constraint to 4 colours per sprite or tile). If you ... of the extra 265 x 16 pixels it had.
ZX-Paintbrush 2.3 publishedDear readers, Today, I published version 2.3 of ZX-Paintbrush. Inspirated by kgmcneil, I decided to follow his ideas and implemented a switchable p…
... Size Raster size drawing using 8,16 & SC ... applies its value to both X & Y, creating only ... for "User Grid"... The X & Y values could perhaps ... is completely 'switched' to ZX-Assembler. But I suppose, ... short) jump to the ZX-Paintbrush project, as the ...A new full-screen bicolor engine called NIRVANA[I]OK, there's something I need to clarify first: Nowadays if you write [B]"multicolor"[/B] everyone assumes it refers to "multicolor 8x1" (an attri…
... the demo to enable a sprite to be moved around
*
* zcc.exe +zx -lm -lndos -lnirvana -create-app ...ZX-Paintbrush 2.3 publishedDear readers, Today, I published version 2.3 of ZX-Paintbrush. Inspirated by kgmcneil, I decided to follow his ideas and implemented a switchable p…
... overlay is the maximum ZX-Paintbrush can handle now...< ... Size Raster size drawing using 8,16 & SC ... applies its value to both X & Y, creating only ... /Down applies to the X coordinate and the second ... for "User Grid"... The X & Y values could perhaps ...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.…
... my current assumption:
ZX layout: bitmap addresses generated by ... would happen every 8 scan lines, or 64*8=512 microseconds. ... little bit slower than the zx layout:[/quote]
... Y coordinate. L : valid character X coordinate
;OUTPUT: HL = ...ZX-Paintbrush 2.3 publishedDear readers, Today, I published version 2.3 of ZX-Paintbrush. Inspirated by kgmcneil, I decided to follow his ideas and implemented a switchable p…
... Size Raster size drawing using 8,16 & SC size for ... applies its value to both X & Y, creating only Square ... Up/Down applies to the X coordinate and the second one ... ...
[IMG]http://www.zx-modules.de/previews/zxpaintbrush01.jpg ...BLOG- ZXSporgBasic RPG development thread- Inspired by the Spectrum 30 show, and after a six-month wait while I was busy playing loads of gigs, I have decided to do a spot of Spectrum coding…
ZX81 and Analogue TVsI recently bought a really nice ZX81 on ebay in amazing condition, but I'm having issues tuning in an old analogue TV to lock onto the signal. I und…
... either two 18-pin 1k x 4 bit SRAM chips (making ... a total of 1k x 8 bit = 1k byte) or a ... folk on the Sinclair ZX World forum 8-) [/quote]
[b ...ZX-Paintbrush 2.5 publishedDear readers, as there were many updates since the last version, I want to bring this to public, so that I hopefully can return back to ZX-Assembler…
... ,
then I select the 8 button up top on the ... set the raster size to 8 pixels then drag that overlay ... :
[IMG]http://www.zx-modules.de/previews/zxpaintbrush36.jpg ... selector and two rulers for X and Y asis, pretty much ...ZX-Modules voting eventDear readers, before I went to a 10-hours shift on my real workplace, I want to announce that I've started a voting event for ZX-Modules, where you …
There's no doubt ZX-Paintbrush will get first ... on a file like "X.chr" or "X.fzx" will open ... 't automatically load either "X.chr" or "X.fzx".
< ... file with size multiple of 8, up to 768 bytes ( ... third vote would go to ZX-Assembler because I'm hoping ...ZX-Modules voting eventDear readers, before I went to a 10-hours shift on my real workplace, I want to announce that I've started a voting event for ZX-Modules, where you …
... 795688]There's no doubt ZX-Paintbrush will get first ... on a file like "X.chr" or "X.fzx" will open ... 't automatically load either "X.chr" or "X.fzx".
< ... file with size multiple of 8, up to 768 bytes ( ... third vote would go to ZX-Assembler because I'm ...Robot SantaAlien Ferox has grown beyond what could be accomplished on a humble Speccy - i've run out of memory AND ideas so that's indefinitely halted. BUT In…
... this is in the enemy sprite code:
... endif"
In sprite code X:
If image=y ( ... so the time your sprite stays in death animation ... , or depending on what sprite is in death animation, ... 've drawn a nice 8 frame death animation for ...Robot SantaAlien Ferox has grown beyond what could be accomplished on a humble Speccy - i've run out of memory AND ideas so that's indefinitely halted. BUT In…
... endif"
In sprite code X:
If image=y ( ... or depending on what sprite is in death animation, ... br />
Each enemy sprite TYPE contains:
... FROM B
SUBTRACT 8 FROM Y
TRAIL ...
ADD 8 TO Y
ENDIF< ...Commodore 64 Vs ZX Spectrum - The DebateFilmed at Play Manchester 2014, Paul Drury from Retro Gamer magazine hosted a live debate asking 4 industry veterans (John Gibson, Ste Pickford, Andy…
... ;799632]To all reasonable people ZX Spectrum is better, as a ... system far better. if the sprite had 16+ hardware sprites instead ... of 8 hardware wise, I think it ...Spectrum preservation/clean up questions.I’m sorting out my 5 Spectrums trying to make them look a bit better, and to package them up how they should be, and to get them to be reliable…
... damaged the plastic on a ZX Spectrum + case using the ... The toastrack is essentially a ZX+ case with a hole ... from a sticky-backed rubber sheet / rubber sheer + double- ... can.
8. Should have a cap. The ... mod on 16/48/ZX+ models to improve the ...2014 Games ListNote: Due to forum update policies, the latest version of the list will always be found somewhere near the end of this thread. [old] Any problems …
... .com.es/2014/03/zx-destroyer.html"]external link ... />
[B]Flappy Bird ZX[/B] [I](action, flappy bird ...
[B]X=Y=Z[/B] [I](Puzzle ... thread[/URL]]
by ZX Studio
release date: ... br /> [B]Escape from Colony 8[/B] [I](Overhead shooter)[/I ...2014 Games ListNote: Due to forum update policies, the latest version of the list will always be found somewhere near the end of this thread. [old] Any problems …
... .com.es/2014/03/zx-destroyer.html"]external link ... />
[B]Flappy Bird ZX[/B] [I](action, flappy bird ...
[B]X=Y=Z[/B] [I](Puzzle ... thread[/URL]]
by ZX Studio
release date: ... br /> [B]Escape from Colony 8[/B] [I](Overhead shooter)[/I ...64x48 monochrome big pixels display ideaHi. I was playing with this idea of having a simple 64x48 bytes buffer, 1 byte per pixel, then a renderer which would take that buffer and render it…
... different offset image for each x-direction, thus:
[code] ... equ 240 ;=5*8*5 =5 rows*8 bytes*5 squares
;+5*8 bytes for the offset column< ... 4 bits[/code]
The sprite is the same size, with ...
