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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…
... in the gk_loop routine.. :)
[CODE]
; Redefine Keys Routine
; written ... in BC also just in case anyone wants to use it from BASIC ...
; ----------------------------------------------
; ROUTINE: print_message
;
; ... -
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…
... the keyretval byte as shown in definekeys.asm
;
; Redefine Keys Routine
; written by John Young
; ... redefine routine you wanted. :)
;
; The bits in A ... in BC also just in case anyone wants to use it from BASIC ... -
Devils CastleJust looked at this in the archive , i think it only went on today , its another great game , similar to the 1st section in journeys end or like a gr…
... - TOO RANDOM!
Namely, everything in the game is too random ... or copy-fill routine? I mean who limited you to use BASIC only ... -
Creating a new game - AssemblySo... finally I?m studying Assembly Z80... after 36 years. :) Well... it?s sooooooooooooo hard to make a game using Assembly? I bought a book (Spectr…
... list, or a list open in a window on screen to ... string those few very simple, basic language elements together into code ... that moves bytes around in memory, and reads and writes ... what the basic instructions do, look at a small routine written by someone ... -
LZ77 en/decodingI've written an LZ77 en/decoding routine as I couldn't find one around for the Spectrum. Initially I'm just doing it in BASIC to get the logic right.…
... ;607054]I've written an LZ77 en/decoding routine as I couldn ... I'm just doing it in BASIC to get the logic right ... . It works, in that it encodes the file ... distance and lenght are encoded in the smallest possible way. This ... -
SAGE gamebook project newsThat's the Spectrum Adventure Gamebook Enhancement, that is (for the time being, anyhow). I've updated the [url=http://www.users.globalnet.co.uk/~jg2…
... the algorithm can be written in 13 lines of BASIC, the main array ... machine code version of that routine which can handle 128 connections ... -
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 …
... br /> your program was written using it. You may abbreviate ...
ret ; return to BASIC
org 0xc39a ...
jp 56 ; exit via BASIC interrupt handler
blit ... 20 column vertical scrolling routine*. Though in data terms I guess ... -
real value of some of these books as learning aids?Ok, I admit perhaps it was a late night and frustration. :???: I could have been hallucinating when i was doing the typein. But I think not.. [url]…
... draw pictures like in the hobbit. how did they fill the colours ... ? was it just a routine that scanned lines in ... .uk/gw03/basfill.htm"]simple fill in BASIC[/URL] posted by one of ... -
real value of some of these books as learning aids?Ok, I admit perhaps it was a late night and frustration. :???: I could have been hallucinating when i was doing the typein. But I think not.. [url]…
... uk/gw03/basfill.htm"]simple fill in BASIC[/URL] posted by one ... recursion in Sinclair Basic, this is a very poor flood fill implementation ... the area to fill small by filling in the region between ... in that said space is reserved on the stack and the fill routine ... -
real value of some of these books as learning aids?Ok, I admit perhaps it was a late night and frustration. :???: I could have been hallucinating when i was doing the typein. But I think not.. [url]…
... ins/yoursinc/ys8901pp.zip]Fill-It[/url] routine by Chris Pile ... it may or may not fill the selected area, depending ... Filler[/url] in Sinclair Answers, which is entirely in BASIC but still ... /yourcomp/yc8508.zip]Hatched Fill[/url] in Your Computer. There are ... -
Completely free games?Hi, I would like to know if there are any open source or completely free games for ZX Spectrum. Or at least some other free programs without any lin…
... was written for the xbox) in particular whose XNA rendering routine I ... original source (which was laughably basic) without breaking other stuff. ... (as possible). The sound routine was anyways an original one ... form of the DirectSound routine used in ZX Mak 2 [I ... -
filled shape creating codeDevelopment is continuing well on a resurrected project of mine from about 20 years ago. Speed and size optimizations are going well along with displ…
... />
Watch the hobbit filling in a screen. Clearly that's ... 's a specific one, then fill could be optimised to the ... fill routine is quite neat. I converted it for Boriel's ZX Basic ... : [url]http://www.boriel.com/forum/how-to-tutorials/fill-routine ... -
z88dk and im2I set up a minimal IM2 mode so I can draw sprites for a laff [code] #include <string.h> #include <stdio.h> #include <im2.h> #include <stdlib.h> #in…
... reading system variable LAST_K, like basic does, to get key ... LAST_K is located. The interrupt routine writes the keypresses to that ... the same subroutine can be written in asm below as the one ... variables on top of equivalent basic system variables too, which ... -
Graphics questionHello. I was wondering, does anybody here know of a method to display a large (as in, the better part of the screen) bitmap/raster image using ZX Sp…
... 23606-23607) to any address in memory and use 96 font ... Britlion's PutChars routine for ZXBC as it is written in Assembler and ... so very fast. Boriels ZX Basic Compiler ... -
Graphics questionHello. I was wondering, does anybody here know of a method to display a large (as in, the better part of the screen) bitmap/raster image using ZX Sp…
... -23607) to any address in memory and use 96 font ... Britlion's PutChars routine for ZXBC as it is written in Assembler and ... so very fast. Boriels ZX Basic Compiler ... />
Characters must be stored in the RAM starting from 32768 ... -
ZX Spectrum code examplesThe shortage of sites with decent code examples seems to be few. The links to alot of sites that used to host them are disappearing into the ether. …
... ). You can test this in basic by poking values to any ... The value you poke in will change the character colours ... first 32 bytes loaded fill in the top pixel row of ... drag once you've written some assembler routines to ... 256 after you'd written all 8 rows of ... -
I'm writing an Operating SystemOkay this might seem like a bait thread, but I am legitamately interested in figuring out how to write a multi-process system for the ZX Spectrum (no…
... jNN2o
It is written in C and targets the z80 ... it is, because it's written in C, the kernel footprint ... small ip, and some basic gui functions. This is designed ... can use it (not yet written :P ) The code is ... actually to an OS routine that patches the JP/ ... -
New game released: EXPLORER<div><span style="font-size: 13.3333330154419px; line-height: normal; font-family: 'Courier New';">- EXPLORER -</span></div><div><span style="font-si…
... 's written in compiled ZX Basic (there's only an Assembly window-scroll routine ... -
New game released: EXPLORER<div><span style="font-size: 13.3333330154419px; line-height: normal; font-family: 'Courier New';">- EXPLORER -</span></div><div><span style="font-si…
... 's a BASIC issue, the game core is not written in Assembly. The ... , and a timing routine from the other side (in order to avoid ... like a typical feature common in many earliest releases, when the ... -
Monkey Island On Speccy...I would love to see Monkey Island on the speccy...think it can be done...not as much detail or graphics...but along the same story lines.... What ot…
... in theory be generated on the fly by a well written ... it with a fancy speed fill routine, then try processing the images ... plotter conversion programs out there written in QBasic that could be ... already said, leadership - nobody in their right mind wants to ... -
Problem with BC corrupting after DJNZJust for fun, I'm messing around trying to get the level maps from Lemmings to display on the screen with machine code. It's been ages since I did an…
... archive always crashes. The one written in C that takes windows .bmp ... it will be mostly in basic. This m/c routine will speed up ... -
Function with push and popIm trying to see if I understand push and pop when it comes to using to pass parameters to functions: [code] LD HL,16384 LD A,5 Push AF Ld A…
... most modern day programs are written for games and games ... sprite draw routine from SP1[/b]
In simple terms ... char to form the graphic written to screen.
... data structure on stack in pattern flood fill routine[/b]
... -
Some Graphic Coding & Audio help.Hello my fellow WoS'ers I am in the process of writing some code for graphical purposes - I have Z88DK raring to go but I do not know how to take…
... recoup memory lost to basic when the program was ... loaded with a small basic loader. You would then ... around 30 games, mainly written by nathan and timmy. ... will generate an asm routine that needs to be ... data into banks needed in basic before the C program ... -
Where does the BASIC program sit 48K Spectrum memory?Hi there First post so be gentle, I've had a spectrum since the 80's and have recently started programming it for fun again. I wrote the followin…
... but for a simple routine like this we'll do ... machine code I've written into memory from a ... you can understand what my routine does, and maybe fiddle ... of one of my routines in BASIC would be:
... Now if you ran this in BASIC (use [b]GOSUB 1000[/ ... -
The state of source level debuggingI was just wondering if we can put on a table everything we collectively know about source level debugging for ZX Spectrum to get an overview of curr…
... z80 disassembly library that is written in pure C and can be ... address is STACK-BC ROM routine
push hl ; push ret ... ; restore state and back to basic
push hl ; push ret ... -
"ZX80 Brain" RPN CalculatorIt is at times like [url=https://www.worldofspectrum.org/forums/discussion/54176/depression]when threads such as this are posted[/url] that I get the…
... screen doesn't fill with junk in 128/+3 BASIC. (It's ... /> - reciprocal key;
= a routine will disable taking the reciprocal ... ATN respectively
= a routine disables calculating ASN and ACS ... big". The routine does at least work in theory - divide ... -
Jet Set Willy 2's original author releases a modded version of the game!Apologies if this has already been posted, but Derrick P. Rowson, the original author of Jet Set Willy 2, has been modding JSW2, and the latest versi…
... and use of this routine. The new routine runs faster.
routine was written in 3 lines of basic on an ... Amstrad 464) this routine ...
Practically every routine has been changed in some way.
... -
The trouble with good code isLots of times I've come here to ask for help and always got it pretty promptly. Which is wonderful and one of the reasons why I don't think there's a…
... The whole point of BASIC was for non-computer-scientist ... 'second level' way. BASIC was never really meant to ... is the result, even if written in a 'bad' way. Its ... to fill you and anybody else thats interested in on ... 8 to the Speccy Basic plus a rather cynical ... -
z88dk sp1lib with fzxThe numbers dont seem to display properly? fzx by itself works [quote] // for targets supporting fzx // zcc +zx -vn -startup=31 -O3 -clib…
... print the score in an interrupt service routine if it ... bit too much like the Basic font,
does ... _DEVELOPMENT/font/font_8x8"]few in the library[/url] but ... (a) they're already written but also (b) the ... string and integers[/url] written in asm. You can take ... -
Reading Disks via ASMI'm hoping to port my Amstrad game to the spectrum (See the link in my sig for info) I will be targeting the 128 and +3 - the game will not work on …
... have software written for it and people using it in Russia and ... disk is TRDOS. Dizzy was written by a Russian (?, sorry if ... because I haven't actually written disk software for any of ... disk access in basic. When you call a machine code routine with "USR ...
