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Sprite RoutineI was wondering if anyone could point me in the direction of a really basic example of a per-pixel sprite routine? Preferably commented. The screen …
I was wondering if anyone could point me in the direction of a really basic example of a per-pixel sprite routine? Preferably commented.
The screen layout confuses me so much! -
General purpose full screen input routineHi Folks, One of the things that annoyed me back in the 1980s with most BASICs was the lack of a full screen "formatted" input function. You could …
... ) I have written an XINPUT routine for the Spectrum (in BASIC ... , the program is the XINPUT routine plus a test harness that ... *---------------------*
9010 REM PSS-XINPUT Routine
9020 REM Parameters:
Help needed with simple MCode routineI'm trying to code a routine to clear the screen and I can't figure out why it's not working: ld hl,16384 ld bc, 6144 loop:ld (hl),0 inc hl dec bc l…
... 'm trying to code a routine to clear the screen and ...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 ...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 ...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 ...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 ...checking bits in BASICThe question of manipulating bit patterns in BASIC was raised recently in this [thread=35728]Keys redefine routine and key check[/thread] thread. I s…
... this [thread=35728]Keys redefine routine and key check[/thread] thread ... was a bit trickier to sort out; I'll include it ... bit manipulation, but the conversion routine does support that as well ...saving part of a BASIC programHere's a short routine to save part of a BASIC program. The idea is that it can be merged into a program and then used to save sub-routines, etc. to …
Here's a short routine to save part of a ... into other programs. It's sort of a slow version of ...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 ...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 ...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 ...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 ...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 ...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 ...Byte-order backbufferThis is a tool for Z80 coders who wish the Spectrum screen had a serial layout. It runs as an interrupt mode 2 service routine and uses POP and PUSH …
... an interrupt mode 2 service routine and uses POP and PUSH ... buffered display and the routine will
automatically sort it into the ... a) it's just a routine, not even as developed as ...redirecting Z80 sub-routine CALLsI'm working on changing a TR-DOS disk program to work from standard +128k tape and thought that rather than painstakingly working through the code ma…
... could install some automatic redirection routine so that whenever the PC ... it would jump to my routine instead. This would be just ...40 Column Printing RoutineI've written a 40 column printing routine, which I'd like to share... It's my first piece of 'public' code so go easy on me! I don't think it is a…
... a 40 column printing routine, which I'd like ... 40 Column Font & Routine."
defb 22,5, ... /> call rst16replacement ; basically the routine replaces rst16
inc hl ... OVER flag - if 0 the routine clears space for the printed ...Mini scroll routineI'm looking for a routine that scrolls a small section of the screen downwards and replaces it with nothing, 2 x 2 charcter blocks to be precise, to …
I'm looking for a routine that scrolls a small section ... />
I seen a similar routine in 'Input' magazine many years ...Asking for help: ZXBC to ASM routine translationHallo, In order to save some bytes and gain speed, I'm asking for translation of a very simple ZXBC routine to Assembler [code] sub light(x as uinteg…
Hallo,
In order to save some bytes and gain speed, I'm asking for translation of a very simple ZXBC routine to Assembler
[code]
sub light(x as uinteger,y as uinteger,intensity as ubyte)
dim adr as Uinteger
if xA 128 Routine to Put Tokens in StringsI was writing a DEF FN on the +128k and decided that I'd had enough of not being able to put function tokens in strings without a great palaver and s…
... I wrote this little BASIC routine to do it for me ...checksum routine from Space GunThis routine starts off with HL=$ffff and a file header read from tape, for each byte of which in turn it assigns to A and calls this routine, ending…
This routine starts off with HL=$ffff ... to A and calls this routine, ending up with another value ...
