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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…
... this.
Basically the routine works by redrawing the tiles ... pixels.
The routine is designed to detect blank ... of the source file for assembly, or a snapshot. I ... />
* This routine shifts tiles into 4 positions ... -
Comments for small "sprite" routine wantedI have just written my first machine code program and I am quite happy (and proud) to get it working! :smile: As a child I never learned anything e…
...
It is a routine that moves an 8x8 character ... not know that many assembly instructions and I have ... has never worked in assembly I am also ...
[B]loadloop[/B] ;routine to write graphic into screen ...
[B]restoreh[/B] ;routine for moving up to top ... -
Machine Code Routine of the weekHow about a thread that has a routine each week that is in [B]assembly language[/B] and is also described in great detail what the hell is going on …
... has a routine each week that is in [B]assembly language[/B ... />
each week a new routine is discussed and all you ... -
Tips on optimizing some newbie assembly routinesI'm starting to learn some assembly language. The best way to learn is to actually code something you are going to use, so I'm creating a very simple…
... 'm starting to learn some assembly language. The best way to ... table of characters, and a routine which reads the grid and ... as I can. Sadly, my assembly skills are very, very basic ... 8x8 tiles.
My routine reads from _MB23_grid a character ... -
Hidden routine in loading screenAs discussed in another thread, the loading screen for [B]Back To Skool[/B] seems to have a hidden routine (in blue INK and PAPER). It would be inter…
... ] seems to have a hidden routine (in blue INK and PAPER ... if someone skilled in Z80 assembly could take a look at ... -
What would be the simplest tape loading routine?I'm searching for some small assembly snippet I can use to load a (headerless or not) block from tape into RAM I can embed in my C games to load furt…
... 'm searching for some small assembly snippet I can use to ... I could use the ROM routine (It would suffice, any pointers ... I'm asking for a routine :)
No need for ... -
Copy 4Kb in Assembly?Here's an interesting problem: what's the best way to copy a block of 4Kb in assembly? The most obvious solution is to use [B]LDIR[/B]: [CODE] l…
... a block of 4Kb in assembly?
The most obvious ... /> ldir[/CODE]
The routine above runs in 86041T, thus ... /> This looks much better. The routine above runs in 67365T, thus ... loop[/CODE]
The routine above runs in 67225T, thus ... -
z80 assembly helpEver since I was a child I wanted to program my zx81 then my zx spectrum + 2. However, it was such a mystical beast and I only ever used BASIC not kn…
... numerous books around z80 assembly. It's slow going ... setxy - this calls the setxy routine
ld a,'*' - ... - this calls the setxy routine
ld a,32 ... - returns to the main routine
setxy ld a, ... -
High score table routineI wrote this general purpose high score table routine. It stores 5 scores and displays them alongside the player names, which are 8 characters long. …
... general purpose high score table routine. It stores 5 scores and ... I started writing my own assembly routines only last year :> ... /> RET ; exits the routine
PRINTNUM: ; routine by J. Cauldwell
how can we load +3dos files in assembly?is there some way to load +3dos files in assembly, like calling bios routines somewhere? (like defining in registers the filename string address in m…
is there some way to load +3dos files in assembly, like calling bios routines somewhere? (like defining in registers the filename string address in memory, loading location, size, etc., and call the routine that loads it?)LINE-routine and other nice pieces of codeThe line-topic came in the end with a nice piece of fast coding. I think that there might be more of these routines out there (where-ever-u-r). Isn…
... (if someone finds a faster routine please tell me..)
line routineWondered if anyone can help me out. I have been programming a 3d graphics library for the spectrum, in Machine code. The line routine that I have i…
... code.
The line routine that I have implemented is ... there have a fast line routine, plese email me.
Spectrum assembly programming Hi, I'm passionated in assembly programming and I'd like to find some documents talking about Spectrum (not Z80). Do someone have interesting refer…
Hi, I'm passionated in assembly programming and I'd like to find some documents talking about Spectrum (not Z80). Do someone have interesting references ? Thanks for all !SPIN Update 0.1a (beta) availableHi all, The latest beta of SPIN is up (a new ZXSpectrum emulator, in case you've not heard of it before - it's not bad, IMHO :), and available fo…
... the non-mmx interpolated gfx routine.
MMX will now be ... Z80 Core recoded in Pure Assembly.
Updated all but ...ANN: Write Spectrum Games in C with speclib121 Announcing the sprite pack C library for the z88dk C cross compiler available from: [url="http://justme895.tripod.com/main.htm"]http://justme895.tr…
... test program bundled with the assembly API for speed comparison. The ... registering a C interrupt service routine. The final one tests reading ...How do I avoid BASIC becoming corrupted on returning from a M/C routine?I'm having trouble with my BASIC program becoming corrupted on returning from a m/c routine which sets all the registers (including the shadow regist…
... returning from a m/c routine which sets all the registers ... when calling a m/c routine from BASIC, and reload them ...Making a mapI should learn Z80 assembly, but I don't have the time (really busy) and I feel like making a game. I've tried with Colt which gives me enough speed…
I should learn Z80 assembly, but I don't have ... how to do a fast routine in assembly to put the tiles ... just knows the basics about assembly programming?
My tile ...Collision DetectionHi everyone, This is my first post on WOS. Like most people here I owned a Spectrum when a teenager. At that time I was quite heavily into programmin…
... doing a bit of Z80 assembly programming again and am hoping ... sprite engine working, and a routine to do a paralax star ... field. My next routine to try and suss-out ... -equal-to type comparisons in assembly.
Any tips, will ...A few questions regarding EmuZwinA few questions regarding EmuzWin 1. I have been trying to write a program to generate multicolour effects on the Spectrum,ie more than 2 attributes…
... per character square. Although the routine is working ok, when timing ... 't seem to affect the assembly, but I was just wondering ...A few questions regarding EmuZwinI had posted this in the development forum and then remembered there was an emulators forum, so apologies for the repetition. 1. I have been trying …
... per character square. Although the routine is working ok, when timing ... 't seem to affect the assembly, but I was just wondering ...Quickest Assembly to find if point in rectangleWhat is the fastest way to see if a point is in a rectangle. e.g rectangle is 10,10 100,10 100,40 10,40 how do i know if a point (e.g 20,20) is in…
What is the fastest way to see if a point is in a rectangle.
e.g rectangle is 10,10 100,10 100,40 10,40
how do i know if a point (e.g 20,20) is in the rectangle, as fast as possible in assemblyBEEPing in assemblyI'm using Z88DK and I'd like to know how to produce BEEPs. I know it's a matter of writting very fast to a certain port, but I've read somewhere that…
... that there's a ROM routine ready to be used. Any ... 1,0" using the ROM routine?
If this info ...Competition: Sadistick routine on Spectrum ROMMy vote goes to BEEPER at #03B5 Let's ear you pick! :) And a great BOHHHHHHHHHHHHH to Dr Ian Logan & Dr Frank O'Hara for their description about the…
... about the parameters for that routine !!!! The words "and HL holds ...ANNOUNCE: BASin Release 12 ready for downloadWell, after a rather large break, BASin's latest incarnation is ready for public use. Probably. BASin is a Sinclair Spectrum development environme…
... debugging abilities for your z80 Assembly code routines
[B ... , Include/INCBIN, expressions, nested conditional assembly/repeats, full DEFB/DEFS support ... a better runtime INPUT line routine with full clipboard and PCkeyboard ...ANNOUNCE: BASin Release 12 ready for downloadWell, after a rather large break, BASin's latest incarnation is ready for public use. Probably. BASin is a Sinclair Spectrum development environme…
... debugging abilities for your z80 Assembly code routines
[B ... , Include/INCBIN, expressions, nested conditional assembly/repeats, full DEFB/DEFS support ... a better runtime INPUT line routine with full clipboard and PCkeyboard ....AY - how to create themI wonder - how would I go about creating an .AY file (music) from a game? I understand that once I have all the necessary pieces (the player, the mus…
... (while I do know Z80 assembly language, I haven't had ... a single port, the play routine was most likely quite isolated ...Beginner InfoI have trying to find some hardware information for use with assembly coding but havn't had much luck. For instance. How do I redirect the vertical …
... hardware information for use with assembly coding but havn't had ... points as my own assembler routine? How do a read the ...Assistance with IM2 routineI subsequently got a working IM2 routine.
I subsequently got a working IM2 routine.Homing missile routine - help neededI am attempting to write a routine which will allow a missile to home in on a player. Basically the sort of thing you see in most shoot-em-up games. …
... am attempting to write a routine which will allow a missile ...
