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Why doesn't my routine work?I have a "level" defined by 504 bytes (28 squares across x 18 squares down) I'm trying to write a routine that will take an X,Y coordinate in pixels…
... 'm trying to write a routine that will take an X ... -
A fast DRAW routineI was investigating how to speed up the line drawing for the [URL="http://www.worldofspectrum.org/forums/showthread.php?t=20225"]BASIC compiler[/URL]…
... an asm Bresenham's drawing routine. The routine was shorter an faster ... every call to the PLOT routine, the coordinates were being ... Bresenham's algorithm. This ASM routine "pokes" itself at the ... .
NOTE: This routine should draw at any location ... -
A clever method of using a single 8-bit register to be used for two things at a timeI don't know if this is the way the SAVE routine in the Spectrum works. Anyway, this is what I've learned today. I've been commented the disassembly…
... is the way the SAVE routine in the Spectrum works. Anyway ... the disassembly of the "save_bytes" routine of the Jupiter ACE. Everything ... be repeated 8 times. In short: I didn't found a ... -
Screen$ command, ROM routineHi All, Does anyone know which ROM routine to call for the Screen$ command (and/or the ATTR command)? Any comments on how well it works or the spee…
... /> Does anyone know which ROM routine to call for the Screen ... -
Not worth reading really - unless you have some spare time(Mods if you want to move it please do it does have a sort of hardware theme and a couple of recommendations at the end :) About two years ago now I…
... do it does have a sort of hardware theme and a ... expert has been cut cruely short by my realisation I know ... -
SpecBAS: Request for comment - SpritesHi all - Having been slaving away at the new SpecBAS release, I've decided to finally bite the bullet and implement a sprite engine. I've got a nice…
... a nice scaling and rotation routine done already, which can be ... , rotation, scaling and masking. Some sort of ON SPRITE command to ... -
IM2 calls to player routine on 128k?Hi all, Apologies for being crap, and not even in a funky, skillo kind of way but it's been over 20 years since I last wrote anything in machine cod…
... found that calling the play routine before halt keeps munging my ... -
Utility or routine to save/display imagesLet's assume I have an image or sprite at coordinates x,y with w witdh and h height. If I were to store this image, which storage method would allow …
... an utility or any available routine that would allow me to ... also have a machine code routine which can turn an are ... -
Proportional Print Routine...Hi Folks, Does anyone know of a good proportional printing routine for the ZX Spectrum? Ideally I am looking for something that prints with charact…
... of a good proportional printing routine for the ZX Spectrum? Ideally ... -
Speccy's and Opus etcAre you sitting comfortably? I will do my very best to identify all this stuff. I have had some help but please ask if you need more information abo…
... giving voltage but during the short time it was on the ... . There could be some sort of short just inside the Speccy. You ... -
Cheap media player for speccy ?Although sort of non Sinclair hardware directly, I want a cheap media player to transfer wav / mp3 tapes (any other recommended formats?) to my specc…
Although sort of non Sinclair hardware directly, ... cheap though as money is short.
How about one ... -
Help with random numbers......Hi all, wonder if anyone can help me... sort of a novice here ... I have been trying to write a simple ish basic program to compare random sets of n…
... if anyone can help me... sort of a novice here ...
routine) to print out the results ... numbers that the random generating routine (that i thought would work ... -
Loading screen "reveals" - did only US Gold do this sort of thing?You know the sort of thing, how sometimes loading screens would appear a bit at a time in a non-standard way. Here's one I grabbed from 720 Degrees: …
You know the sort of thing, how sometimes loading ... US Gold labels did this sort of thing - do you know ... -
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…
... br /> ret
; ----------------------------------------------
; ROUTINE: print_message
;
; prints a ... , :p
; ----------------------------------------------
; ROUTINE: get_defined_key
;
; check for ... -
Is this guy that guy?So I saw a piece of this Very British Show Indeed on TV over here where the main character is apparently a Doctor Living In A Small Community. Tho…
... /> Though I only caught a short glimpse of the show, I ... Unsuccessful Mechanical Devices of Some Sort.
Don't remember ... -
Pixel engines for explosions...Hi... Iv a strange request... I was toying around with an old YS program, which can be found here: [url]http://www.users.globalnet.co.uk/~jg27paw4/ty…
... the code out of this routine to use in my own ... to converting back into any sort of source code that I ... -
How come 'short' games seem long to me?Just a quick topic regarding 'short' games. Rage has come in for some criticism for it being 'short' but it took my younger brother 4 full evenings t…
... a quick topic regarding 'short' games. Rage has come ... criticism for it being 'short' but it took my ... of comments about it being short - but I've ... - all of which were apparently short games.
I ... lot, and that modern 'short' games seem perfectly fine ... -
tiny routine to shift RAMTOP & stackCompressing some data areas above RAMTOP and wanting to make the released space available for BASIC arrays, I needed to move RAMTOP without using CLE…
... last segment of the CLEAR routine to finish off. It could ... -
Request: photo of 16k/+2 SpeccyI'm currently writing an article for a german retro-themed website called the equivalent of "videogame stories" (link [URL="http://www.videospielgesc…
... asked me to do a sort of rundown of my Speccy ... a photo to illustrate this short foray into Atari territory would ... -
Problem with a small basic routineDear all; I have been messing about with a routine (originally published in Your Computer 1982, by Tim Langdell). The idea of the program is to simul…
... been messing about with a routine (originally published in Your Computer ... -
Trouble with the family...My sister & I used to be really close as we grew up... she's older and was always a litle bossy, not as bad as Linus & Lucy from peanuts, but we di…
... ...) well to cut the story short, she never forgave me for ... is willing to cut all sort of relations I have with ... 've never been in this sort of situation, my family has ... thought I would be the sort of guy who stops talking ... -
Alkatraz protection systemI recently became interested in the Alkatraz protection system, a very widely used tape protection (a infoseek search returns more than one hundred r…
... =1&also=1&sort=1&display=1& ... =1&also=1&sort=1&display=1& ... easy to find, the save routine or mastering code is not ... -
Procrustean PrintingHere's a short routine to manage printing of text with command tokens, to avoid messing up the screen when they are expanded. It just prints as many …
Here's a short routine to manage printing of text ... -
Easy but long or hard but short?I know some people prefer challenging, difficult games, no matter if they are short (so they are finishable), and other people prefer long, but easy-…
... , no matter if they are short (so they are finishable), and ... -
Using the ROMs PRINT routineI really am starting from scratch again it seems, but how do you utilize the ROM routine to print characters, I think you point te BC register to an …
... do you utilize the ROM routine to print characters, I think ... -
more on storing mazesPrompted by Wookiee's escapades, I've been pondering on how to use DATA statements directly for displaying background graphics, thus avoiding the dup…
... practice it needs a short m/code routine), after which it can ... -
Game over routineA few years back I remember a routine that printed 'game over' or other message randomly all over the screen in different colours. Think it was out o…
A few years back I remember a routine that printed 'game over' or other message randomly all over the screen in different colours. Think it was out of YS, but not sure.
Anyone remember what it was called or where I could find it? -
The INPUT command routine ($2089)I was looking at the INPUT routine with a view to modifying the intro so that I could pre-load the workspace and edit an existing value, rather than …
... was looking at the INPUT routine with a view to modifying ... -
Memory move routine?Hi Folks, I have been searching for the thread that covers the memory move routine that uses a$=b$ via DEF FN. I thought it was written by Battle B…
... that covers the memory move routine that uses a$=b$ via ... -
Interview with VERONIKA MEGLER ("The Hobbit" programmer)This interview with Veronika Megler (The Hobbit) has been published by elmundodelspectrum.com in Spanish, I copy it here for you all in its original …
... only worked there for a short time. Phil and I worked ... ?d call Phil?s graphics routine and his code would draw ...
