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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…
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extern uint *RAMTOP; // System variable RAMTOP
#asm
variables that are not zero at ... -
So I did a thing...And it's nearly ready for release: [img]http://s18.postimg.org/4453ayo5j/Screen_Shot_2016_03_30_at_16_18_17.png[/img] Apologies for the enormou…
... with multiple assignments work with variables created in the same ... can no longer crash the system with infinite loops of ... Windows version no longer allows system messages to mess with screen ... operator didn't accept plain variables in a range
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Ultimate games with short machine code files loaded lastThis is a bit geeky, you've been warned! I remember early Ultimate games loaded from tape had the ascending beeping noise, a "Please wait" message, …
... put a breakpoint on IY=23610. Why? Because those loaders are ... that has the right environment variables. Most times it works and ... -
A z88dk + sp1 demo (with source)Since nowadays people are still wondering about how difficult it is to make something in z88dk, I thought I just put a very simple demo to show how e…
The version for the new c library is split between two files. One holds the C code and the other holds the asm stuff. The compile lines are listed at the top of demo.c. "q" increases the number of sprites, "a" decreases the number of sprites, "p" ... -
POKE taking a variable amount of time...Hi Folks, Does anyone know why the following POKE statements seem to vary in their execution time? [code]100 POKE 60000,10 110 POKE 60001,16…
... ; you can use the DEFADD system variable within your machine code ... the VARS system variable to access the contents of BASIC variables directly ... -
RANDOMIZE USR, PRINT USR etcHello just wondering why is it called RANDOMIZE UsR what does randomising have to do with it ? When calling machine code routine from adress x you ty…
... , taking some space from the variables area. If you have put ... put it on the SEED system variable. It may have some ... -
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…
... overflow of memory addresses for variables referred to in the DATA ... array).
An operating system would need to employ a ... -
How to get more than 21 UDG's in BASIC?So with graphics mode under the G cursor how many UDG's can you do from BASIC is it 21? It's all POKE 65368 and above and it's sequential ABCD.... an…
... BASIC using that memory for variables or something.
My ... the 'high' half of the system variable to change it from ... don't forget that this system variable points to 256 bytes ... -
ZX GameDev tools consolidatedHello WoS! It's been a while, yet with a plenty of decent gamedev tools (including new ones!), is there a [i]single/pivot table[/i] or some datash…
XeldaI've decided to take on the Zelda tribute game and take over the Xelda title (because it's a great title name). Working with the MK2 Mojon twins gam…
... sort of password system generated on the major variables that will provide ...XeldaI've decided to take on the Zelda tribute game and take over the Xelda title (because it's a great title name). Working with the MK2 Mojon twins gam…
... sort of password system generated on the major variables that will provide ... finish" and found the password system I developed for a speccy ...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…
... once you start learning about variables and follow the calculations as ... understanding is at the 'postal system' level where my data is ...Why don't the variables print where I told them too?I wrote the following program to experiment with creating sounds using 3 notes of BEEP and having the ability to change the notes up or down one at a…
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RAMTOP is a system variable that the BASIC interpreter ... for storing the program and variables. Any data or machine code ...ZX Spectrum Next Kickstarter Launchedhttps://www.kickstarter.com/projects/1835143999/zx-spectrum-next
... conversion for the another incompatible system. That is, [i]if ... all of those things into variables.[/quote]
Now what ... of sprite colours. Variables for sprite scaling. Variables for the clipping ... blitter will need LESS variables for a given video ...ZX Spectrum Next Kickstarter Launchedhttps://www.kickstarter.com/projects/1835143999/zx-spectrum-next
... conversion for the another incompatible system. That is, [i]if ... all of those things into variables.[/quote]
Now what ... of sprite colours. Variables for sprite scaling. Variables for the clipping ... blitter will need LESS variables for a given video ...ZX Spectrum Next Kickstarter Launchedhttps://www.kickstarter.com/projects/1835143999/zx-spectrum-next
... at least a real retro system.
[quote="Alcoholics Anonymous ... want the rest of the system to use these free cycles ... to read all the sprite variables data for all the sprites ...ZX Spectrum Next Kickstarter Launchedhttps://www.kickstarter.com/projects/1835143999/zx-spectrum-next
... offers for a relatively low system bus overhead.[/quote]
system bus overhead now when ... a video hardware sprite system will use a lot ... wanna keep all the sprite variables data on-chip (i ... memory using this same system bus, it does rather ...Why don't the variables print where I told them too?I wrote the following program to experiment with creating sounds using 3 notes of BEEP and having the ability to change the notes up or down one at a…
... could do that with regular variables! WHY DO WE NEED CONSTANTS ... asked. If we had used variables, then SpecBAS would have to ... worry - the whole pre-RUN system that does this stuff is ... can see they're not variables! How's that for awesome ...endless runner project..So I'm thinking of writing a small tutorial series on writing games for the speccy in C, and figured that an endless runner would be an easy example …
... (have?) with C. like overlapping variables, withOUT warning and segmentation errors ... the "\e". There's a system call to "clear" (the [all ...endless runner project..So I'm thinking of writing a small tutorial series on writing games for the speccy in C, and figured that an endless runner would be an easy example …
... is intentionally independent from any system software including the spectrum rom ... to use unsigned types for variables whenever you can. The z80 ...z88dk : Support FunctionsJust a quick one here, I am looking to doing some dirty dirty code with C and load a screen$ file from the disk using "system( command )" - yes I …
... , as there is NO system to jump back to, ... those [b]BASIC[/b] variables can be populated with ... with the previously populated string variables to Load - in ... it modifies the [b]BASIC variables U$[/b], [b]P ... where in BASIC such variables would be stored (location ...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 …
... init functions - and restoring the variables like drive letter etc.
system shouldn't know anything's ...Thought this would be simple... Z80Hi Folks, Started to read "Beyond simple BASIC, Delving Deeper into your ZX Spectrum" by Dilwyn Jones. This is a great book and I came across the…
... Starting address
; ------------------------------------------------------------------------------
; Variables
ROW defb $00 ... ld hl,23560 ; LAST K system variable
ld (hl ...Thought this would be simple... Z80Hi Folks, Started to read "Beyond simple BASIC, Delving Deeper into your ZX Spectrum" by Dilwyn Jones. This is a great book and I came across the…
... ; Starting address
; ------------------------------------------------------------------------------
; Variables
ROW_COL defw $0000 ... ld hl,23560 ; LAST K system variable
ld (hl),$00 ...Can't Get My Simple Code To RunHello again, I'm trying to run the following simple code: [code] org 32768 main ld b, 21 ; x coordinate is …
... CLEAR 65535
20 POKE 23610, 255
30 LOAD ""CODE ... at $0000, which is the system reset call in ROM. Without ...ezcode on plus 3Hi, I’m filling my evenings at the moment typing in the ezcode listing from Spectrum machine language for the absolute beginner by the elusive Mr …
... confused and fails to parse variables named with keywords. It wasn ... of the single keyword entry system. You can either rename the ...
