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MC 101Hello Group Members: Can't spectrum MC be embedded in a BASIC program
... for that by PEEKing the system variable PROG and add on offset ... -
Character SetAlright, this may not be the right forum for this question (it does sort of relate to a game which I'm trying to get working properly - long story) -…
The system variable is CHARS with low ... original Spectrum manual contains these System Variables and is available in the ... -
Anyone know the address mappings...of the hardware resources on the speccy; From the screen display address range to all the hardware control registers. etc. Where can I get access t…
... the RAM and add some system variables, so I guess you could ... -
RZX for Sabre WulfI was just about to send an RZX for Sabre Wulf to the RZX Archive when I noticed they don't accept Ultimate's (and other companies' who haven't given…
... that simply one of the system variables (if a machine code game ... -
How to transfer Tapes to Microcartridges??Hello All, I have a ton of Microcartridges, also about 10 totally unused, was wondering how I can transfer any games I have on tape to Microcartridg…
... spare memory for the extra System Variables let alone a 512 byte ... -
Reading the keyboardDoes anyone have a code sample to read the keyboard in machine code ?
... modes and fool with the system variables. Here's an alternative that ... -
Is the IY register used by the spectrum rom?Hi I've been writing a sprite routine and have noticed that the sprite data gets corrupted at some points. I have no idea why and can only guess tha…
The IY register points at the system variables usually. If you point it anywhere else, various bytes will be corrupted by the ISR as it alters some of the sytem variables (FRAMES for example) -
MemoryI am writing a game for the Spectrum and need to store a lot of map data. What is the lowest address I can start to store the data at ?
In theory: anywhere in RAM.
Realistically: just above the screen (assuming you don't need the system variables). -
MemoryI am writing a game for the Spectrum and need to store a lot of map data. What is the lowest address I can start to store the data at ?
... but was aware of the system variables around there. I wont be ... -
MemoryI am writing a game for the Spectrum and need to store a lot of map data. What is the lowest address I can start to store the data at ?
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You can overwrite the system variables as long as you're ... -
Interrupt timingsHow long does the ULA hold /INT low for on interrupt on each of the Spectrum models?
... of BASIC has enough extra system variables and wotnot that kio's ... -
New Compo IdeaI've had this idea and would like to know what do you think about it. I think that most of us here know how to code in BASIC. The problem with Specc…
... include all I can find: system variables, pokes, addresses of ROM routines ... -
New Compo IdeaI've had this idea and would like to know what do you think about it. I think that most of us here know how to code in BASIC. The problem with Specc…
... 've added info about the system variables, a couple of addresses in ... -
Z88DK + SPLIB2 question.I downloaded the compiler, installed it following the instructions (found at the SPLIB2 website), updated it using the fixed files (stdlib.h and the …
... as suggested, that creates/modifies system variables. Now I move to C ... -
Disable BREAK 128 basicDoes anyone know how to prevent BREAK in 128k basic?
... acheve something by altering the system variables ERR_SP or ERR_NR (I think ... -
udg collision detectionhow do I detect a collision between udgs in basic?
... - have a look at the System Variables CHARS entry for more details ... -
128 ramdisk loaderanyone got a program which will save the contents of ramdisk to tape in one go, rather than saving each file seperately then loading them and save!in…
... saved/loaded; some of the system variables (at least those from 5B83h ... -
128 ramdisk loaderanyone got a program which will save the contents of ramdisk to tape in one go, rather than saving each file seperately then loading them and save!in…
... saved/loaded; some of the system variables (at least those from 5B83h ... -
Adding commands to Spectrum BASIC?Are there any articles on how to do this? I think it could be done by making the error trapping routine point to your own commands, but not sure exac…
... had to do with the system variables. I don't have access ... -
screen$I'm wanting to create a game which is written mostly is Basic, due to lack of MC skills but i need a MC routine if someone would kindly supply it I…
... for the BASIC program and system variables. As a rule of thumb ... [url="http://trd.speccy.cz/system.htm"]some Russian ones[/url ... -
Help with loading knowledgeHi. I'm new to spectrum coding and have a few questions to do with how the spectrum loads programs. You press LOAD "" and play the tape, and it find…
... 't caused any Interface 1 system variables to be added, it changes ... -
Turbo Imploder Anyone clued up on how to use this ? I've managed to pack a few of my own games, but I notice the default start address is always 24576, can you go…
... allow you to reset the system variables to power up values and ... -
42 column text, Sinclair Print Utilities, etcI'm currently developing the next of the ZXIF text adventures - "43 Minutes" and, as a side issue, I'm really interested in 42 column text for this g…
... in RAM just after the system variables and before the BASIC area ... -
42 column text, Sinclair Print Utilities, etcI'm currently developing the next of the ZXIF text adventures - "43 Minutes" and, as a side issue, I'm really interested in 42 column text for this g…
... in RAM just after the system variables and before the BASIC area ... bytes from 23568 is the system variable STRMS, which holds the ... -
TLOTRD - compiling problemsOk guys! A new demo for 'The Legend Of The Red Dragon' is nearly finished (just need my bro to draw some artwork as I'm using sample images from the …
... from the start of the system variables onwards to the end of ... just typed, and as the system variables are all set up to ... />
If you edit the system variables so that a BREAK or ... -
TLOTRD - compiling problemsOk guys! A new demo for 'The Legend Of The Red Dragon' is nearly finished (just need my bro to draw some artwork as I'm using sample images from the …
Mulder, it's possible that they do. If you know your system variables fairly well (and how the ROM uses them when executing commands) then you can do some quite surprising things.
D. -
A deeper exploration of the SpectrumI've been reading a lot of posts in the BASIC and development forums and they've really intrigued me. Although my knowledge of the deeper working of …
... concerning the memory and the system variables.
They'll also ... -
Enjoy it while you can [url="http://comp.sys.cbm.istheshit.net/"]http://comp.sys.cbm.istheshit.net/[/url] The image has been reported. Has anybody got a better one?
... my encyclopedic knowledge of Spectrum system variables and infinite lives hacks.
Detecting TR-DOS from BASICIs there a simple (or contrived :D ) way to detect the presence of a TR-DOS/Betadisk interface from BASIC? For fairly obvious reasons this can't rel…
... wrote:
There is a system call to test for the ... work on a TR-DOS system :)
(and PEEKs, or ... )
The "TR-DOS System Variables" document on WOS suggests I ...
