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How do I save?I've made a HUGE text adventure with lots of collectables and lots of locations, but how can I get the user to save their game to tape if they need t…
... too. Instead of having a variable named stone, wood, etc for ... -
Emulator File types...SNA/TAP/TZX/Z80/ZXS All I knew about the Spectrum was how to play games on it, but since being introduced to pc emulations back in '97 I've always w…
... random number generators using system variable FRAMES, whose value depends on ... -
Where do I begin to build an emulatorHi I would like to build a Spectrum emulator from scratch, the reason? well I'm curious, to see if I can =) I've successfully ported Pocketclive to X…
... , explaining the basics in Z80 opt codes I think I have ... -
Method to read byte as binary string rather than dec?Hi all Am fiddling around with the screen buffer and have written a routine to scan the screenbuffer into upper ram and then write it back in upside…
... BIN 01010101) simply by subtracting variable z from 255
Update ... -
Method to read byte as binary string rather than dec?Hi all Am fiddling around with the screen buffer and have written a routine to scan the screenbuffer into upper ram and then write it back in upside…
... BIN 01010101) simply by subtracting variable z from 255
Update ... -
128k Screen Flipping - Sample Code PleaseI know this has been covered before, but I cannot find out code to do the following: On a 128k Spectrum tell the speccy to display from address 4915…
... to run, then the system variable at 5B5Ch (23388) must be ... -
4-pixel scrollingDo you think is 4-pixel scrolling accetable for horizontal shooter ? (aka do u like Chronos ? :)
... scrolling are possible, and also variable speeds.
Briefly how ... -
Codies help? Werewolves of LondonHi All, never one for shying away from the deep end, having only just dipped my toe in to the world of machine code I find myself trying to find out …
... , and scores for speed on variable handling which it uses its ... -
Run Length DecodingRun length encoding/decoding is far less efficient than using a modern compression program.
... ration then i should use variable bit lenght for most common ... stand alone values and variable bit lenght for storing number ... -
Lesser used BASIC commandsAre there any interesting articles or books that explore some of the lesser used BASIC commands/functions e.g. DEF FN, IN, OUT etc? The Spectrum BAS…
New - BASin r13a is available for downloadHi all, Here's the latest BASin. Mostly just bugfixes, but also now has the upgraded UDG editor which can now edit multiple UDGs on one editing gri…
z88dkHello. I'm an spanish user of spectrum (and naturaly of this page). I have a question. I want to start to program games with z88dk, but I need a goo…
... , it does not have 'spec_crt0.opt' so i copied it from ...how to pass arguments from Basic to MC ?can someone explain me (or give some link) how to pass arguments from basic to machine code? i mean something like this: PRINT USR xxxxx, arg1, arg2:…
... nnnnn, look up the system variable DEFADD. The value of your ...New - BASin r13a is available for downloadHi all, Here's the latest BASin. Mostly just bugfixes, but also now has the upgraded UDG editor which can now edit multiple UDGs on one editing gri…
z88dkHello. I'm an spanish user of spectrum (and naturaly of this page). I have a question. I want to start to program games with z88dk, but I need a goo…
... asm they produce using dead variable analysis, etc, while z88dk only ...some questionshello all, I havent been here for a while, but Im back, older and wiser (I hope). No more stupid spectrum OS ideas. Well I have a speccy + 2a and I …
... was mashed. It was making variable amounts of white noise when ...+3e file manager program/projectFirstly let's get one thing sorted. This program/project is written entirely in basic, as I am a lamo who doesnt know enough M/C. It really Is'nt th…
... to the string into the variable [B]l[/B]. Then you ...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…
... showing you what this function/variable is here, but it's ...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…
... of the file. The C variable "frame01" will point to the ... label "_frame01" and the C variable "frame02" will point at the ... this is stored away in variable "temp". The next call to ...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…
... as usual then the "colour" variable is set to the attribute ...When do you optimise?I was just wondering when people here optimise their code. Do they wait till it is all done or do they code a routine and then optimise that?
... mentioned in undergrad textbooks -- dead variable analysis, etc (I can't ...When do you optimise?I was just wondering when people here optimise their code. Do they wait till it is all done or do they code a routine and then optimise that?
... mentioned in undergrad textbooks -- dead variable analysis, etc (I can't ...Sprite adviceHello. So, I'm slowly getting to grips with Z80 assembly - currently equal parts frustration and enjoyment. Now looking for some advice to help shift…
Sprite adviceHello. So, I'm slowly getting to grips with Z80 assembly - currently equal parts frustration and enjoyment. Now looking for some advice to help shift…
... :
shipfire is a stored variable. If shipfire=ZERO, SPACE was ... (shipfire),a ;store in shipfire variable, and
call newbullet ;call ...Speccy and LinuxI try to run Spectrum emulators under Linux (PCLinOS Mandriva based distribution, kernel 2.6.12), with Wine 0.9, but without much succes. Spectacula…
... LIBDIR to the `LD_LIBRARY_PATH' environment variable
during execution
- add ... LIBDIR to the `LD_RUN_PATH' environment variable
during linking
- use ...Speccy and LinuxI try to run Spectrum emulators under Linux (PCLinOS Mandriva based distribution, kernel 2.6.12), with Wine 0.9, but without much succes. Spectacula…
... LIBDIR to the `LD_LIBRARY_PATH' environment variable
during execution
- add ... LIBDIR to the `LD_RUN_PATH' environment variable
during linking
- use ...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…
... update the timer in system variable FRAMES. Since 0x38 lies in ...