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48K Speccy not workingHey, A few months ago (hope it´s not to late) I was loading a game into my speccy and from one moment to another it stopped working! I unplugge…
... then leads to stack or system variable corruption which prevents the machine ... -
Oneliner contestHello to you all, I dare you to make a program on 1 BASIC line. Here is the place to sent your ONELINERS [url]http://www.zxspectrum.00freehost.co…
... having to repeatedly POKE the system variable to stop the scroll? message ... 1000*(ATTR... part sets the variable that controls the FOR loop ... -
Sceen$ helpMost people have used screen$ at some time or another and for me what I want to do is use it or something like it as a start screen before the game p…
... might come in useful: the system variable at 23675 and 23676 is ... -
How does interrupts work?I am a little confused regarding the interrupts on the Spectrum. If I have some hundred bytes of machine code started with, say, [B]RANDOMIZE USR 300…
... keyboard and updating the FRAMES system variable, among other things. Since code ... -
How does interrupts work?I am a little confused regarding the interrupts on the Spectrum. If I have some hundred bytes of machine code started with, say, [B]RANDOMIZE USR 300…
... of interrupts or by the system Variable FLAGS indicating that a key ... -
How does interrupts work?I am a little confused regarding the interrupts on the Spectrum. If I have some hundred bytes of machine code started with, say, [B]RANDOMIZE USR 300…
... the [B]LAST K[/B] system variable, that is only gives you ... -
How does interrupts work?I am a little confused regarding the interrupts on the Spectrum. If I have some hundred bytes of machine code started with, say, [B]RANDOMIZE USR 300…
... the [B]LAST K[/B] system variable, that is only gives you ... IY register points into the system variables area. If you leave ... -
Project: M.u.l.e.Wokani came up with a great idea about trying an open-development approach for spectrum games, and I thought why not try with a game I have under dev…
... [/code]
are special variable declarations unique to z88dk. A ... "normal" integer variable declaration, as in "int ... top of the Spectrum's system variable FRAMES at address 23672. ... located on top of the system variable CHARS. The value of ... -
A challenge thats probably impossiblehere's a challenge for all you coders. Given a snapshot, is it possible to create a program to sniff out the original start address for the game that…
... there's this one little system variable that holds the magic key ... -
A challenge thats probably impossiblehere's a challenge for all you coders. Given a snapshot, is it possible to create a program to sniff out the original start address for the game that…
... there's this one little system variable that holds the magic key ... 't recall there being a system variable that gives us the start ... -
Project: M.u.l.e.Wokani came up with a great idea about trying an open-development approach for spectrum games, and I thought why not try with a game I have under dev…
... " with the help of the system variable CHARS as we did in ... -
Oneliner contestHello to you all, I dare you to make a program on 1 BASIC line. Here is the place to sent your ONELINERS [url]http://www.zxspectrum.00freehost.co…
... used was to POKE the system variable which causes the Spectrum to ... -
Oneliner contestHello to you all, I dare you to make a program on 1 BASIC line. Here is the place to sent your ONELINERS [url]http://www.zxspectrum.00freehost.co…
... /> [/QUOTE]
Poking the system variable ATTR_P. Interesting. Probably some of ... -
Question on Z80 R/W cycles.Snipped from the complete spectrum ROM disassembly: [CODE] Now the memory is checked. 11DA RAM-CHECK LD H,D Transfer the value…
... P-RAMTOP (Physical RAM top) system variable is made to point there ... -
Oneliner contestHello to you all, I dare you to make a program on 1 BASIC line. Here is the place to sent your ONELINERS [url]http://www.zxspectrum.00freehost.co…
... />
You can poke the system variable DATADD to eliminate all LET ... use two sets of scalar variable instead to save some space ... -
Paging MemoryAny idea why this short piece of code doesnt work, just crashes. I am just messing with paging memory in and out (not achived this yet) and reading t…
... top 16k and keep the system variable at $5b5c current with the ... -
Paging MemoryAny idea why this short piece of code doesnt work, just crashes. I am just messing with paging memory in and out (not achived this yet) and reading t…
... Basic and not poking the system variable ($5b5c) that tells it what ... -
Oneliner contestHello to you all, I dare you to make a program on 1 BASIC line. Here is the place to sent your ONELINERS [url]http://www.zxspectrum.00freehost.co…
... PASS.
n address of system variable NSPPC, simply to save space ... checking.
Initialise variables:- n=system variable NSPPC, put first four player ... -
Paging MemoryAny idea why this short piece of code doesnt work, just crashes. I am just messing with paging memory in and out (not achived this yet) and reading t…
... top 16k and keep the system variable at $5b5c current with the ... -
Poke 23739,111So, I'm looking at some of my old loaders (BASIC stuff) to work out how I got the display to not corrupt on loading code. It's the old POKE 23739,111…
... the value in the CURCHL system variable is put into HL. CURCHL ... -
A vexatious questionThis is kind of a follow-up to a question about RST #8 and hardware that I wrote in the development forum a while ago. To summarize that: certain ha…
... the device to use the system variable that allows handling of commands ... a shadow ROM use that system variable?)
What about race ... -
Testing the Ram on a Toastrack 128KHi All My "new" 128K is misbehaving, all the demos I have loaded for it crash instantly, Ghostbusters 128K is playable but one of the background scr…
... it doesn't touch the system variable (23388 ). However it shows the ... -
Oneliner contestHello to you all, I dare you to make a program on 1 BASIC line. Here is the place to sent your ONELINERS [url]http://www.zxspectrum.00freehost.co…
... four pieces, (using FOR loop variable 'l') I need to step ... also POKE the two byte system variable NEWPPC to set the line ... -
DEF FN DirectivesI am looking at using some machine code functions from the DK Graphics Pack. They are machine code but they are called via Basic with the function de…
... stored in the DEFADD (23563) system variable which points to the DEF ... your parameters into the DEFADD system variable, then call the code. Make ... -
Minigame Compo 2007Hi there, also this year, there'll be a minigame competition, open to all 8-bit computers and consoles. It consists on writing games whose size (…
Hey, you don't think we're going to give up that easily do you? :-)
Haven't had chance to try this yet, but inspired by [url=http://www.muppetlabs.com/~breadbox/software/tiny/teensy.html]Brian Raiter's even more evil ELF hacks[/url], I wonder ... -
New oneliners for 2008[INDENT][INDENT][INDENT]Here's my attempt at a first-person-perspective 3d game in one line of BASIC. It's called 'wormhole', and you've got to get t…
... it is finished!
Variable list
[quote]
variable 'd' from.
k ... /> n - holds useful address of system variable NSPPC used for jumping to ... -
Dangerous Z80 Assembly CommandHave been reading Toni Bakers' "Mastering MC On Ya Speccy" book and came across the list of Z80 commands in the dictionary section. Page 102 "[b]IM…
... page is always stored in system variable at $5b5c). It's clearly ... -
Probing the variables in 128K modeHello again! Briefly, I'm writing an m/c routine to read some BASIC variables. So, before I start, I try to get an idea for the structure of how var…
... which uses only that single system variable works differently in the 128K ... -
New oneliners for 2008[INDENT][INDENT][INDENT]Here's my attempt at a first-person-perspective 3d game in one line of BASIC. It's called 'wormhole', and you've got to get t…
... of code does not set system variable [B]INSTRNR[/B] properly yet ... -
New oneliners for 2008[INDENT][INDENT][INDENT]Here's my attempt at a first-person-perspective 3d game in one line of BASIC. It's called 'wormhole', and you've got to get t…
... can be implemented by resetting system variable TVCOUNT when the game starts ...
