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Copying a SCREEN$ in ZX BASIC in 1 second?!Following on from the revived "[thread=20207]Saving a complete SCREEN$ in BASIC[/thread]" thread (although Arjun really only needed a suitable POKE i…
... posting [thread=30618]"storing machine code in BASIC"[/thread] from last ... writing a short routine to scroll down the whole screen with ... -
50Hurts - Full-screen 50Hz 1-pixel scrolling on a 128K Speccy50Hurts - Full-screen 50Hz 1-pixel horizontal scrolling on a 128K Speccy. Graphics are an obvious nod to Joffa, whose games and banter were a big ins…
... which one bit of code modifies the code that then renders the ... no good at reading others' code myself. I can only ... with self-modifying code. I wrote an ST parallax scroll that copies ... wrap-around buffer. This Speccy scroll copies sequences of PUSH statements ... -
50Hurts - Full-screen 50Hz 1-pixel scrolling on a 128K Speccy50Hurts - Full-screen 50Hz 1-pixel horizontal scrolling on a 128K Speccy. Graphics are an obvious nod to Joffa, whose games and banter were a big ins…
... writing one word into the code for every word of screen ... /> Unless it also inserts some code to shift the stack pointer ... -shifting for a 2-pixel scroll. -
Best way to organise a multi screen game?Hi All, Does anybody know ay good ways to organise large multi screen game? Or any links to useful texts on the matter? In my previous single scr…
... platforms would benefit enormously from horizontal run-length compression, where you ... you could also include a code for vertical repetition, then remember ... ]Gauntlet[/I], with some intelligent code to insert the graphics for ... -
enJine: a fast tilemap enginetile engine based on excellent work by Joffa Smifff. here you can download first tech demo. [url=http://ketmar.no-ip.org/tmp/enJine.tap]Get It Now![…
... everyone else digging into your code).
Personally I don ... chars, full colour 25 fps, horizontal scrolling only, with some sprites ... -
GUI/OS for the Spectrum?Hi, Is anybody working on a WIMP/GUI system for the Spec? Is there anything current out there? [url]http://snakeoillabs.com/wordpress/2005/10/30/8…
... got around to writing any code:
[img]http://sites ... very detailed. I love the scroll bar and the yellow folder ... -
Great Giana SistersI read that the GGS was considered a Mario-infringement, and therefore it didn't come out on the Speccy, but why was it OK to publish it on ye olde C…
... were all lacking the smooth SCROLL magic...[/QUOTE]
You obviously ... game featuring probably the best horizontal scrolling ever seen on a ... -
Games featuring... relevant bugsThere was a recent improvement to the WoS database in order to classify [URL="http://www.worldofspectrum.org/forums/showthread.php?t=34261"]Games fea…
... exit is down.
[code]48k:
77aa: ld a ... /> 77b7: jp $77d0[/code]
Values are 0 - horizontal, 1 - up ... zero at $77ae :-
[code]
77aa: ld a, ($caf3 ... ), hl
77b7: jp $77d0[/code]
Fixes:-
fast font engine possible?inspired by the recent "proportional font" thread for zx basic and ideas for gui and having done some of the work on this in the past i wonder if it …
... (and simplest) code, but one can also fast- scroll affected part to ...fast font engine possible?inspired by the recent "proportional font" thread for zx basic and ideas for gui and having done some of the work on this in the past i wonder if it …
... is, with some irrelevant code removed:
[code]PrintChar:
push ... /> jr c,.prcNoScroll
; scroll the whole screen one line ... /> printYPos: db 0
[/code]
character height is 7 ... />
p.s.: the code taken from 'The Pawn' game.Games featuring... relevant bugsThere was a recent improvement to the WoS database in order to classify [URL="http://www.worldofspectrum.org/forums/showthread.php?t=34261"]Games fea…
... /> 77b7: jp $77d0[/code]
Values are 0 - horizontal, 1 - up ... ), hl
77b7: jp $77d0[/code]
Fixes:-
< ... this problem:
[CODE]
77aa: ld a,($caf3 ... original 48K release, except the code was recompiled in order to ...ZXDS questions...Hi Folks, I am hoping someone on here knows something about [B]ZXDS[/B]. I have downloaded the program to my daughters [B]DSi[/B] (for testing purp…
... narrow it down:
[CODE]100 BRIGHT 0
110 ... =0
270 NEXT y[/CODE]
The issue shows ... pixels between them. On the horizontal lines the red and magenta ...Games featuring... relevant bugsThere was a recent improvement to the WoS database in order to classify [URL="http://www.worldofspectrum.org/forums/showthread.php?t=34261"]Games fea…
... "]here[/URL][/quote]
[code]
d45f: inc (ix+$14 ... /> d46b: jp $9a41[/code]
When code at $d468 runs, crash ... elsewhere such as here:-
[code]
d17b: ld hl, $cbcd ...List of existing games that needs a port to zx spectrumPlease post here the games that exist in other platform(s) but does not exist in speccy. Please keep in mind this is not a to-do list, so don't hesti…
... but based on tiles with scroll registers. The resolution is ... it replaced the old Atari code for font handling/scrolling/scaling ...
NVDI replaces the backend code (such as the AES libraries ... a result of the improved code, much quicker, smoother and ...Sinclair Programs uploaded.I've just uploaded a ZIP containing all the 'Sinclair Programs' programs and the instructions for each one. (Well all the ones from 'The Type Fantast…
... Page - May'85
Morse Code - Peter Ford - Apr'84
Scroll (aka. Smooth Screen Scrolling In Machine Code) - Tony Rickwood ...New WIP underway - 'Dingo'.Hi, Prepare for a long post. Perhaps I can even challenge ewgf here. :razz: Anyway, I've been meaning to get into Z80 programming and making a game…
I'd say it's late and you are maybe tired :) because what you describe doesn't seem a big problem for me.
I'd do it in following steps:
[B]1.Check if enemy is enemy is at good position for shooting[/B]
If not -> ...New WIP underway - 'Dingo'.Hi, Prepare for a long post. Perhaps I can even challenge ewgf here. :razz: Anyway, I've been meaning to get into Z80 programming and making a game…
... so much fruit in the horizontal rows, having enemies only fire ... , heh, that little piece of code is basically what I have ...Better or Worst! Speccy vs C64Just wanted to see what games you all thought looked better or played better on the Speccy or the C64? I always thought that Renegade & Target Ren…
... most of the same game code, but with updated graphics routines ... , with wider pixels, a pixel scroll only has to run at ...Better or Worst! Speccy vs C64Just wanted to see what games you all thought looked better or played better on the Speccy or the C64? I always thought that Renegade & Target Ren…
... most of the same game code, but with updated graphics routines ... , with wider pixels, a pixel scroll only has to run at ... gain on speed on the scroll.phantamos 2 / vampire[url]http://www.worldofspectrum.org/infoseekid.cgi?id=0003688[/url] the link to "vampire" is the wrong game ? and not the codemasters thing. in th…
... that is "Re-released by Code Masters Ltd (UK) (as 'Vampire ... Codies version is only a scroll away as Martijn said.
BEEPER Demo: "9 CHANNELS" (ZX48)Hi my friends. Another year, another demo for Spectrum 48K. :) This time - "9 channels" demo, for BEEPER fans. [url]http://pouet.net/prod.php?wh…
... more CPU time for the scroll), and was not capable for ... . I.e. it would always scroll of the same size, nothing ... 't want to have the scroll, or, for example, replace it ... the engine. That's because code of sound engine and graphics ...New WIP underway - 'Dingo'.Hi, Prepare for a long post. Perhaps I can even challenge ewgf here. :razz: Anyway, I've been meaning to get into Z80 programming and making a game…
... ...just too deep in code to mock up the ... like this:
[code]
colchk ld a,e ... cp l ; are sprites within horizontal distance?
ret nc ; ... passed, sprites have Collided.
[/code]
Obviously, you ...New WIP underway - 'Dingo'.Hi, Prepare for a long post. Perhaps I can even challenge ewgf here. :razz: Anyway, I've been meaning to get into Z80 programming and making a game…
... laziness...just too deep in code to mock up the following ... "just a few lines of code", too.
With 32x32 ... easiest and quickiest solution. If horizontal distance between center of both ...New Tool: CheqEdit[b]CheqEdit[/b] it's a simple and small program that helps you to draw 64x48 graphics on screen in GRAPHICS MODE. Program can output as text in CHR$ …
... , it will be possible to scroll parts of the screen, it ... can load it as a CODE block. I don't know ...ZX80 and 81 hardware questionsI'm finding a lot of the documentation that is ostensibly about the hardware of the ZX80 and 81 to be primarily about the software. I was hoping some…
... active (ie, interrupt acknowledge) triggers horizontal sync, with sources diverging on ... 207-cycle timer triggers both horizontal sync and an NMI simultaneously ... it another way, if this code is executed on a ZX80 ... in theory if you wrote code that told the Z80 to ...Keys redefine routine and key check.I have written some asm code which allows me to redefine keys (for a game etc.), and also allows me to be able to check any keypresses for the redefi…
... struggle to follow other peoples code but I think we're ... over it :smile:
[CODE]org 33000
;neither optimised ... call keyrd
rlc b ;scroll through all the ports
bc6 defw 0[/CODE]Why did track-ball thingies never catch on?Just fixed a bloke's laptop, and he mentioned how he hates the mouse touchpad that's built in to it. I concur, and I told him to use an external mous…
... due to wear from the scroll function and even when the ... bed whilst i am lying horizontal. I could not ever think ...Add horizontal hardware scroll to ULA+In this case we must read a bit in the ULA+ for test if supported. And the future software that uses it must have to branch: 1. If hardware scroll i…
... I am only interested in horizontal hw scroll. I want to do ... demo at 50fps using hw scroll and shadow screen. I will ... not as needed as hw scroll. In terms of performance, writing ...Yamaha Keyboard for Sale.Folkes I'm selling one of my old keyboards, a Yamaha PSR510 which cost be about ?600 in the mid 1990s. Its an all in one with 61 keys, 128 sounds, 8 …
... code on the chip to read lyrics from midi files & scroll ... no way to access the code - the 630 is pretty much ...Add horizontal hardware scroll to ULA+In this case we must read a bit in the ULA+ for test if supported. And the future software that uses it must have to branch: 1. If hardware scroll i…
... firmware upgrades for that PCB: horizontal/vertical scroll, raster interrupts, non-blink ...
