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Any MCODE programmers fancy a challenge?Hi Folks, I have been using the Micro-Print utility in the archive and found it to be really good. It is the one that provides 32, 36, 42, 51, 64 a…
... ]Spectrum file manipulation tools[/url], writing a [url=http://mdfs.net ... /Comp/Spectrum/ProgTips/Printout]small-fast character printout[/url] code, and website ... -
Any MCODE programmers fancy a challenge?Hi Folks, I have been using the Micro-Print utility in the archive and found it to be really good. It is the one that provides 32, 36, 42, 51, 64 a…
... ]Spectrum file manipulation tools[/url], writing a [url=http://mdfs.net ... /Comp/Spectrum/ProgTips/Printout]small-fast character printout[/url] code, and website ... -
Better arrangement for video memory?While doing some documentation work for the ZX-Uno project, I compared the advantages of the weird layout of the ZX Spectrum against a linear layout.…
... current layout is optimized for fast character display, as you can ... = address of first byte of character pattern
;DE = ...
Besides, after displaying one character with the first routine, the ... of the next character (within the same character row), so ... -
Strange layout of Spectrum video memoryHello, does anyone have an idea why the Spectrum's video memory has such a strange layout? I understand that a resolution of 256x192 is an easy mean…
... true that it optimizes 8x8 character writing used by BASIC, but for ... -
"Sinclair Zx Spectrum: Absolutely Better Than Commodore 64"Did you ever read this? [url="http://www.alfonsomartone.itb.it/fztsmo.html"]http://www.alfonsomartone.itb.it/fztsmo.html[/url]
... just wouldn't be as fast on the C64. Perhaps the ... ship is fully armed, 32 character bullets (if memory serves) and ... the C64 at least as fast, take a look at [B ... ] since they both use very fast character-based pseudo 3D. A lot ... -
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 …
... /> [code]
; FASTPRNT.S - Fast character printout
; J.G.Harston ... /> ;
; On entry, A=character to print
; On exit ... CHARS EQU 23606 ; Address of character set
DFCC EQU 23684 ... INC HL ; Step to next character line
INC D ; ... -
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 …
... /> [code]
; FASTPRNT.S - Fast character printout
; J.G.Harston ... /> ;
; On entry, A=character to print
; On exit ... CHARS EQU 23606 ; Address of character set
DFCC EQU 23684 ... INC HL ; Step to next character line
INC D ; ... -
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 …
[QUOTE=jgharston;489689]SNIP Fast character printout code[/QUOTE]
I've uploaded and typed up information on various non-ROM fast printout routines at [url=http://mdfs.net/Info/Comp/Spectrum/ProgTips/Printout/]mdfs.net[/url].
JGH -
display file addressing; screen slicingWhile working on this Compendium I'm updating or rewriting a lot of stuff. One thing I eventually came to appreciate was the simple & clever way in w…
... file format is to enable fast character printing without using dedicated text ... -
Spectrum screen layoutSeeing the thread on displacement I was wondering why the spectrum had the stupid screen split into three sections and the addresses for each section…
As torot says, it's basically to enable a reasonably fast character display. Most other machines used dedicated video display processors (VDPs) that did all the work for you. -
Fast Condition TestingHello my friends, I have been writing some input and string handling routines in BASIC lately - yeah I could write them super fast in C/ASM via z88d…
... /> I have been writing some input and string handling ... could write them super fast in C/ASM ... there is something wholesome in writing them in BASIC
... ]" contains a restricted character in the first index ... = 12[/B]" the end character is removed and the index ... -
ANN: SP1 for Z88DK (aka splib3, Sprite Pack v3.0)Well it's finally arrived, after a month of "a few days from now" release deadlines. SP1 is the lastest version of splib, a flicker-free software sp…
... /> - inp(), outp() (for reading/writing i/o ports), swapendian() have ... with sp1_IterateSprChar() or the fast way with sp1_PutSprClr(). The ... they spill into an adjacent character.
8. ... br />
10. Individual character cells can now be removed ... -
Speccy character set address in ROM?Hi guys Can anyone tell me where the speccy character set lives in speccy rom, say, starting from the ! (ASCII 33) character? I'm actually writing …
... tell me where the speccy character set lives in speccy rom ... ! (ASCII 33) character?
I'm actually writing a BASIC program ... want to use the speccy character set, because it's so ... -
Any BBC aware Specchums out there?After the UK101 and VIC20 emulators I've moved my sights onto emulating a BBC computer. This emulator will be different though in that it will be a Z…
... etc. will be in native, fast Z80.
I ... core file routines for reading/writing files, checking for EOF, ... be pixel accurate rather than character square sized. I did see ... chars being aligned to a character square.
[*]More graphics ... -
Tutorial - learn machine code in 30mins[B][I]Message from the moderators[/I] - bigjon has requested that readers' attention be drawn to a better version of this tutorial, one which is easi…
... tutorial to get you started writing machine code.
Anyone ... our machine code at free, fast-running (over 32768) and memorable ... the paper colour of one character square to blue.
- draw ... is slow down our blindingly fast machine code.
Insert ... -
Fast LogsAnyone know of a fast ln function I can steal? The ROM function seems to be hideously slow. I wrote a look-up table dirty and less accurate sin func…
Anyone know of a fast ln function I can steal? ... isn't quite up to writing one for natural logs.
fast font engine possible?inspired by the recent "proportional font" thread for zx basic and ideas for gui and having done some of the work on this in the past i wonder if it …
... byte per character width). this would enable fast 8-bit ... raster line for each character would be the mask ... (each 8 bytes are one character…)
but ... proportional font of one character (A) width 13 ... do you believe ultra-fast draw_text could be made ...Multi-sized character screen driverFollowing on from the thread on [url=http://www.worldofspectrum.org/forums/showthread.php?t=24618&page=14]character output routines[/url], I've dug o…
... ?t=24618&page=14]character output routines[/url], I've ... a mixture of five different character sizes:
[img]http://mdfs ... /> Ah, the happy memories of writing this all out on paper ...Interview with Clive Townsend (Saboteur)Here you have at [URL="http://www.elmundodelspectrum.com"]www.elmundodelspectrum.com[/URL] this exclusive interview with Clive Townsend. Don?t forget…
... ZX Spectrum and I started writing games in BASIC...
fast enough. Rob White suggested I ... came to work for Durell, writing Thanatos on the C64!
character to a female ? a risky ...20-column multicolour: a half-baked ideaI was writing an email reply to one Mr Jowett about multicolour routines, and in that way that explaining something to someone else makes you think "…
... of the character row above, we're busy writing the first ... only need to change each character row SEVEN times, not ... possible opportunity (which means writing the leftmost byte as soon ... churning through the PUSHes as fast as possible, without checking where ...Name the Character for my new StoryI know this is utterly stupid, but I feel as if I have no choice. Let me explain: I am currently writing a second novel (after the positive receptio…
... :
I am currently writing a second novel (after the ... to name the only female character in an otherwise all-male ... determines the nationality of the character, each number/choice corresponding to ...Short & Amusing (was: Soduko Solver)Looking for some ideas for simple but fun programs, I came across this brute force soduko solver which might amuse: [code] // zcc +zx -vn -startu…
Looking for some ideas for simple but fun programs, I came across this brute force soduko solver which might amuse:
[code]
// zcc +zx -vn -startup=1 -clib=sdcc_ix -SO3 --max-allocs-per-node200000 --reserve-regs-iy soduko.c -o soduko< ...z88dk v1.99A Release Candidate[b]Z88DK VERSION 1.99A RELEASE CANDIDATE[/b] Download from: http://nightly.z88dk.org/Releases/ The release candidate will be available for te…
... library] Object oriented stdio allowing writing of sophisticated drivers using code ... . Currently base classes implement serial character devices and terminal (console) devices ... time options allow selection between fast and small library code and ...Character Based SpritesHi, I'm working through Jonathan's excellent guide to writing games, and have mastered the animation of single UDGs. Before or move onto Pixel…
... Jonathan's excellent guide to writing games, and have mastered the ... any examples with 2x2 UDG character based scrolling sprites rather like ...How to separate a character from a number in a string?Hi I've been writing a kind of logo type program in BASIC that takes a string a$ from INPUT and then draws according to what you give it. Say you w…
Hi
I've been writing a kind of logo type ... can determine if the next character it reads in the string ...Did Sonic the Hedgehog ever come out on the Speccy?Couldn't find anything in the Archive.
... to the attributes, you are writing both foreground & background colours ... be full colour. assuming the character stays central on the screen ... going to look into a fast full-colour 8 way scroll ...Did Sonic the Hedgehog ever come out on the Speccy?Couldn't find anything in the Archive.
... to the attributes, you are writing both foreground & background colours ... be full colour. assuming the character stays central on the screen ... going to look into a fast full-colour 8 way scroll ...z88dk+splib2 sprites question.I'm creating a game and I have several "states" for my main sprite, such as jump, facing left, facing right, etcetera. All those states require a dif…
... 4 colours out of every character cell - I don't know ... 's why I'll be writing a complete tutorial when I ... the better way to achieve fast and tight results.
ANN: SP1 for Z88DK (aka splib3, Sprite Pack v3.0)Well it's finally arrived, after a month of "a few days from now" release deadlines. SP1 is the lastest version of splib, a flicker-free software sp…
... this character, then goto this line number, etc.) The key to writing ... /> A hash table is a fast table lookup. One stores (key ...Alien8 style 3D Tiles - TheoryHello, Are there any articles etc explaining how to do 3d style tiles, i.e. when to redraw those in front etc. I would guess you would need to work…
... in the rooms sorted order fast and correctly.
... on character boundaries as this routine could be made pretty fast.
character aligned boundaries.
... for.
Just thinking about writing a 3D iso game engine ...
