-
need help with speed optimization. this procedure draws a sprite with mask from memory onto the screen with x-coordinate in pixels. it doesn't shift sprites in realtime, it just uses …
... .)
LD A,(SPRYLEN) ; taking height of sprite (pixels)
LD ... -
Machine Code Sprites Example Code Using Char Based SystemBelow is my WIP code to do smooth screen wrapping sprites using char positions and offsets, as opposed to writing direct to a line (0-191) and shifti…
... ,up
down:
; Y Counter
LD A,(IX+3 ...
up:
; Y Counter
LD A,(IX+3 ... -
IM2 Machine Code Sprites Example Code Using Char Based SystemFurther to my earlier post, here are sprites running using char method with IM2 driving it Note, for 48k spectrum using TASM [code] ; ***********…
... .
; Have a counter, when it reaches target, ... down:
; Y Counter
LD A,(IX+3 ... br /> up:
; Y Counter
LD A,(IX+3 ... br /> ; 8 = RO:Pause Counter
; 9 = Pause Target ... -
Smooth Screen Scrolling RoutineHi everyone, this is a follow up to the thread on smooth screen scrolling. As promised here is the code for the routine. It's pretty long and fairl…
... />
DEC IXL ;decrease loop counter
JP NZ, MODHLB ;and ... /> DEC IXH ;decrease row loop counter
JP NZ, ROWLOOP ;jump ... -
Idea for a new feature to compliment a debugger in an emulatorI had an idea for an emulator feature yesterday. Don't recall having seen this idea before, but I'm sure you'll correct me if it has. :) In that cas…
... word was used as a counter instead of a byte, to ... -
just watched Miami Dolphins play New England PatriotsN.E Patriots Q.B lost them the game! threw a pass, should have taken the sack, miami intercepted, took a 5yd penalty, and got a t.d with the 4th…
... that during the Spectrum's height of popularity, NFL was probably ... -
Roller coasterHas anyone here ever completed roller coaster? Ive just tried it with infinate lives, energy and fall from any height. The problem is, when i get to …
... , energy and fall from any height. The problem is, when i ... -
TZX Loop 0The original Road Blasters TZX has a decryption tone loop with a counter of zero. I'm coding TZX handling in my emulator and I'm wondering the best w…
... decryption tone loop with a counter of zero. I'm coding ... -
Installing Z88DK Z88DK INSTALLATION Z88DK is distributed in two parts. The first part is the platform independent bits (including source and z80 libraries) and th…
... ,32}; /* Bound Rect @ (9,0) height=15, width=32 */
struct ... -
ANNOUNCE: Fuse Spotlight Importer for Mac OS X 10.4 TigerThe Fuse Spotlight importer allows the Spotlight feature of Mac OS X 10.4 Tiger to find ZX Spectrum emulation related files based on metadata in the …
... dumps
Graphics mode, width, height, orientation, colour space -
The Customer/Sales Assistant is always wrong.....or just an idiotI've been on both sides of the counter (worked in a computer shop in the early 90's) and have heard and seen a couple of stupid things. Had one lad…
... on both sides of the counter (worked in a computer shop ... -
Another "What game was it?" threadqIt was a 2-D bouncing ball game like I, Ball & I, Ball 2, but without shooting. The ball had black and white checks and you controlled the height of…
... checks and you controlled the height of its bounce. You had ... -
Anybody seen Gorgeous George?Has anybody seen the Gorgeous George video? This guy runs a public access show on cable in the US and gets an obscene amount of prank calls. Someone…
... in and asks George what height he is, I find particularly ... -
Game I've forgottenRight, so in a question from another forum : "Which type of space shooter do you like?", which allows the answer overhead or side-view scrollers. I b…
... you could line up in height and horizontal axes, and shoot ... -
Kraal corrupted :/Seems like 48 and 128 versions of Kraal, available on wos is corrupted :/ Look on this: [url="http://www.worldofspectrum.org/infoseek.cgi?regexp=^Kra…
... has tittle screen with speedlock counter on it, so I can ... -
Epson do it again!Just found a program which fixes "dead" epson printers, after x amount of uses the epsons have a built in couter which says the printer has failed an…
... to reset the printed page counter!
Obviously I cannot ... -
Recommended cassette recorder?I'm looking for a new cassette recorder with a counter. Any suggestions?
I'm looking for a new cassette recorder with a counter.
Any suggestions? -
searching for small-(smallest) ?Pinball?it?s another ?name da game? thread: I?m looking for a certain pinball which had just one screen, pale background and inscription ?SAGITTARIAN? (or s…
... 8 or 10 rolls on counter of the Panasonic recorder (which ... -
XLR-8 Mastering utils: quick heads-upFirstly, only do this using an emulated 48K rubberkey at this stage because that's all it was ever tested on. "LOADER MAKER" - "First decrypter" - p…
... you'll see the vertical counter onscreen, use Q A O ... -
Why I Hate PC WorldI detest PC World for the following reasons: 1. Repeatedly poor service. 2. Selling me a 1Gb SD memory card for ?60, when I could have bought it for…
... . I go up to the counter with the empty game box ... gormless, pimply fellow behind the counter then looks for the keys ... -
WoS - the websiteYe Gods - it took me long enough to discover how to start a new topic. I don't see a "new topic" button on the main forum page, and it's counter-int…
... forum page, and it's counter-intuitive to have to click ... -
I Love Freecycle because .....I got a Boxed Amstrad CPC464 a green tube Amstrad Monitor a MP1 Modulator that allows you to use the 464 with a normal tv (bit naughty that you had t…
... . It still works but the counter reset button is stuck. The ... -
Please don't shout at me - I bought something C64 related...Went in to Argos with the missus yesterday to get something dead exciting (bedsheets) and saw someone at the counter collecting one of those C64 30-g…
... ) and saw someone at the counter collecting one of those C64 ... -
Why are computer magazines so expensive?Why are computer magazines so expensive? I mean, five quid or more for a magazine, more if there is a CD or DVD on there... The CD/DVD costs pennies …
... charge, but this is surely counter-productive, as less people will ... -
Pixel Explosion CodeJust a little snippet to cause explosive effects. It uses table lookups for the screen address, and can handle up to 32 pixel particles. A particle…
... inc (ix+4) ; increase counter
ld a,(ix+4 ... ; have we reached the counter
jr nz,madp_nx2 ... ld (ix+4),0 ; reset counter
; Increase ... -
The 128 plus 2 wasn't very goodHaving looked at the review in issue 33 of Crash of the Spectrum Plus 2, it strikes me as a bit odd, as if Simon Goodwin had to like it. I remember r…
... regular cleaning and no tape counter. Top it off with the ... -
Rocky Took A LoverHe said 'I wanna shine in the eye of Orion But I drove my soul through the Black Hole!' She said 'What a wonderful way to wake me You weren't so n…
... my arse
The perfect height for kicking?'
He ... -
tips on optimizing assemblyI wrote a small routine to rotate right a whole screen character line complete with attributes. This is my third ever assembly routine, so I guess i…
...
ld d, c ; save counter.
ld a, (hl) ; bring ... />
ld c, d ; restore counter
ld a, c
Why does Spectrum display has a border?Ok, this is problbly simple and very basic question but I don'r remember seeing an answer anywhere. Don't you think, that at first glance it is irr…
... more pixels in width and height
2) Keeping the ...Gamestation Stores throw away retro games!!!After the closure due to the robbery of "That Game Shop" (see my "that game shop" thread in this part of the forum for more info), I resorted in phon…
... charva emerged from behind the counter and started mouthing off. He ...
