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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…
... />
The idea behind the routine is to limit what the ... simple string array, before the routine is called the array is ... /> So that initializes the next routine for processing
[code]
However, the above routine is slow to execute or ... -
Snowfall effectHow do you go about creating a snowfall effect like the one in Yeti? Now don't laugh, I'm currently printing 32 UDG's of dots OVER the top of my gam…
... !
Is there any routine from the old mags knocking ... -
SkoolKit 4.2SkoolKit 4.2 has been released. SkoolKit is a set of command line utilities for disassembling Spectrum software, into ASM format or into a bunch of …
... or Z80
[*]automatically label routine entry points
[*]automatically annotate ... every routine entry point with a list ... -
ZX rom type detectionHere is routine for fast detection of zx rom / computer model. [URL="http://velesoft.speccy.cz/other/ZXROMDETECT.zip"]http://velesoft.speccy.cz/othe…
Here is routine for fast detection of ... zip[/URL]
Routine read only some bytes from ... /> [CODE]Here is small routine for detect zx rom type ... at address (#09AC).
Routine return register BC=0-7 ... =255 for unknown rom. Routine is small, but detection ... -
Random object placementI'm looking for some advice on placing objects randomly in a game. I have a routine that reads a table and prints the corresponding object: 0 prints…
... .
I have a routine that reads a table and ... -
GameBaddie's Art project...Hi Guys, I've recently revived my old 48k for a (just-for-fun) art project. I have about 4 weeks of spare time to accomplish my goal, and the plan i…
... record the plot/draw/circle routine as a video animation. Once ... -
Any Examples of player controlled masked sprite over flip screen tilemapped rooms?Please does anyone kindly have any z80 code examples of a flip screens tile map with a masked character sprite that you can control via keyboard, ie …
... examples of a flip screens tile map with a masked character ... -
Playing AY music on the SpeccyCan anyone help with playing AY ripped music on the Speccy? So, let's say I want to play some ripped AY music, such as: [url]ftp://ftp.worldofspect…
... in memory to init the routine, then call the data in ... -
Grammar-based data compressionI'm working on a game for the 48k Spectrum but want a way to compress a lot of screens into a small space, so I'm looking into data compression. Each…
... currently a 32x22 array of tile indices with 4 bits per ... tile, so 352 bytes. I might ... -
SkoolKit 4.4<div><font face="Arial, Verdana"><span style="font-size: 13.3333330154419px; line-height: normal;">Hey, first SkoolKit release announcement since the…
... or Z80
automatically label routine entry points
automatically annotate ... every routine entry point with a list ... -
Double height text...<p>Is here any good routines for printing a font double height?</p><p>I've concocted this ridiculous routine but I'm sure it can be done much better.…
... ?I've concocted this ridiculous routine but I'm sure it ... -
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…
... old game, including an Assembly routine to scroll a screen window ... -
Confused about DOS SET MESSAGEI'm confused about this function and the ALERT routine. I was rewriting a machine code +3DOS loader and I was trying to use this routines to collect …
... this function and the ALERT routine. I was rewriting a machine ... ), it works fine. My ALERT routine gets the error and silently ... (no carry) but the ALERT routine is not called. It happens ... +3e.
Is this routine meant only for BASIC? -
Divide by 16 problem...I think.I *think* I have a problem with division. Now, this is not for the Spectrum but it [i]is [/i]for another Z80 platform. I'm converting [b]Speccies …
... 'm not sure my division routine [i]is [/i]the problem ... -
What is everyone thinking right now."Hmm, I'll scroll through WOS, then I might put the kettle on. Need to look through the column draw routine in Tir Na Nog. Oh that itch is back again…
"Hmm, I'll scroll through WOS, then I might put the kettle on. Need to look through the column draw routine in Tir Na Nog. Oh that itch is back again. Hey is that cat dumping in my garden again...." -
Mirror tableCan anyone help with a byte mirror table? e.g. so you can look up a byte of a left-facing sprite and return the correct right-facing value. There …
... as opposites so the drawing routine takes the same time, regardless ... -
Code structureHi all, I'd be interested in opinions on the neatest way to do this. I've got a print string routine in which 0-31 are reserved for control codes, …
... 've got a print string routine in which 0-31 are ...
control_code
...jumps to routine in jp table based on ... ;>
But each routine ends with JP PRINT_STRING so ... -
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…
... setxy - this calls the setxy routine
ld a,'*' - ... - this calls the setxy routine
ld a,32 ... - returns to the main routine
setxy ld a ... ret - returns to the main routine
xcoord ... -
The history of ESXDOS, the DivMMC and the DivMMC EnJOY![img]http://benophetinternet.nl/hobby/divmmc_history/1%20esxdos.jpg[/img] These are the stories behind esxDOS, the most popular operating system e…
... and optimized the FAT seek routine (which was hard work), made ... -
New version emulator ZEsarUX 3.1Hi I have uploaded a new version of my emulator ZEsarUX on http://sourceforge.net/projects/zesarux I have improved accessibility support, no…
... detection. Now a custom loader routine is detected and reinserted the ... -
Interface 1 ShadowROM pagingI read the Interface Shadow ROM Disassembly book. I wondered how that rom calls the interface's rom paging mechanism. It doesn't! I learned there is …
... program counter reaches 8 (error routine) or $1708, the interface pages ... -
Chompston Mazes in SpecBASAfter the discussion in ASH-II's Pacman thread, I checked out the link there about generating 2D Pacman style mazes. This one was quite good fun, …
After the discussion in ASH-II's Pacman thread, I checked out the link there about generating 2D Pacman style mazes.
This one was quite good fun, and can form the basis for a number of game types, one of which being [url=http://www. ... -
PUSH scrollers 3[url=https://drive.google.com/file/d/0B-KEeni1WXmoYk9Dek1zVnd6Rk0/view?usp=sharing]CATS - Faith edition (example)[/url] Hello and welcome to the w…
... 's a repeated 16x16 middle tile and edge versions of that ... -
Ninjaman 8-way scrolling 50Hz multicolour demo :-)Here's a demo I've been working on for a while. The goal was to make the best scrolling routine possible on a humble 48K ZX Spectrum. I was origin…
... to make the best scrolling routine possible on a humble 48K ... -
The Great Escape. I found an alternative escape route.I managed to figure out a way to escape without ever using the wirecutters. So if you've beaten the game a lot of times and would like to try somethi…
... inventory and join the daily routine. When it's time for ... -
Drawing some spritesI figured I want to draw some sprites. My target was to do a 16x16 masked sprite. There's no clearing here, just drawing the sprites. My first ite…
... anyway.
With that routine, drawing a sprite takes 546 ... -
Help With AY Music Program in BASICHi, last year I started writing a BASIC program for making and recording AY Music. I thought it would be easier than learning how to use Soundtracker…
... /> 2. My save/load music routine doesn't work.[/b]
routine at 3500 tests how long ... not used within the recording routine **
1258 REM ** doubling up ... pressed go to the playback routine.
2070 IF INKEY$="g ... -
Which joystick design?Dear World of Spectrum, As some of you may remember, about a year or so ago I embarked on a quest to design an arcade stick for PC and Mac compute…
... a poll). You know the routine. :)
Yours sincerely,
