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Where does the BASIC program sit 48K Spectrum memory?Hi there First post so be gentle, I've had a spectrum since the 80's and have recently started programming it for fun again. I wrote the followin…
... the above listing using POKEs from BASIC? How would I do this ... 's roughly equivalent to the BASIC instruction:
[b]LET ... one of my routines in BASIC would be:
[ ... Sinclair BASIC.
Now if you just swap the 'from' and ... -
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…
... want to get two parameters from BASIC in to my machine code ... -
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…
... want to get two parameters from BASIC in to my machine ... speed or convenience of use from BASIC.
Your method ... slower, but easier to use from BASIC; you can use the ... access the contents of BASIC variables directly from machine code, allowing ... -
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…
... speed or convenience of use from BASIC.
Your method ... accessing the coordinates several times from your machine code routine; ... slower, but easier to use from BASIC; you can use the DEFADD ... read the parameters of a BASIC function, so you can use ... -
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…
... different methods of passing parameters from BASIC to machine code. I employed ... -
2016 Games ListHi, this is the thread I use for the 2016 Games List. Note: Due to forum update policies, the latest version of the list will always be found some…
... though it was a mod from an unreleased material. It ... got nostalgia and port it from basic to C. Then BB ... a basic guru fancied a port from trs80 Basic to Sinclair Basic, making ... it harder and fixing some typos from ... -
2016 Games ListHi, this is the thread I use for the 2016 Games List. Note: Due to forum update policies, the latest version of the list will always be found some…
... though it was a mod from an unreleased material. It ... got nostalgia and port it from basic to C. Then BB ... a basic guru fancied a port from trs80 Basic to Sinclair Basic, making ... it harder and fixing some typos from ... -
Best place to start learning assembly on WOS ?So I'm pretty new at this forum but not the Speccy so my BASIC is pretty good. I can see lots of resources on WOS for doing machine code/assembly but…
... I'm poking values directly from BASIC.
Hex - everything else ... -
Graphics program in AssemblyHi so I think I'm getting the hang of this so I've done this program. It writes directly to the screen. I'm using ZX Spin. [code] LD HL,16384 LD B,…
... I tried to load this from BASIC by POKEING the DATA values ... -
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…
... 'm trying to get away from the ROM if possible).[/quote ... not going to use FZX from BASIC with PRINT #4, then you ... (this part is clearly separated from everything else in the source ... -
Graphics program in AssemblyHi so I think I'm getting the hang of this so I've done this program. It writes directly to the screen. I'm using ZX Spin. [code] LD HL,16384 LD B,…
... Marvin. Hence doing it all from BASIC either while I'm in ... -
Graphics program in AssemblyHi so I think I'm getting the hang of this so I've done this program. It writes directly to the screen. I'm using ZX Spin. [code] LD HL,16384 LD B,…
... plus side of using it from BASIC I can actually add user ... -
The state of source level debuggingI was just wondering if we can put on a table everything we collectively know about source level debugging for ZX Spectrum to get an overview of curr…
... ends up in Sinclair ROM BASIC (from ROM Dissasembly):
basic
push hl ; ... BASIC part and then jumps to machine code from ...
1. Start from BASIC by running RANDOMIZE USR 0 ... -
The state of source level debuggingI was just wondering if we can put on a table everything we collectively know about source level debugging for ZX Spectrum to get an overview of curr…
... first loads BASIC part and then jumps to machine code from it ... debugging.
1. Start from BASIC by running RANDOMIZE USR 0 ... .
2. Start from breakpoint inside your program.
BASIC. This could be used to ... -
how to load machine codeFollowing the links given in various replies to my last discussion resulted in my downloading Mastering machine code on your zxspectrum and typing in…
... in the machine code program from BASIC using REM statements up to ... -
A BEEP program I want to make in Basic. Helpful remarks gratefully receivedI want to explore the possibilities of the BEEP command. So I need to be able to try different combos of pitch/duration and sequences of same. I'm tr…
... mean using the BEEP command, from BASIC?... That would be TOO slow ... you are likely after... In BASIC, your kind of limited ... effect generation...
Within BASIC itself, Iv never had much ... pc/Mid2ASM.zip), to output BASIC listings like this, to play ... -
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…
... are going to start from, to stop BASIC using that memory for ... system variable to change it from 255 to 254, 253 etc ... quicker and easier to program from BASIC. It means your UDGs will ... numbers, so at least your BASIC is still readable. Use lower ... -
The secret of success is failure32 years ago when I first started learning to program thanks to the Speccy, I didn't worry about not getting the anticipated results. I wasn't confi…
... in mind that anything coming from BASIC has the commands and function ... Also the numbers in a BASIC line also have the floating ... are applications that can convert BASIC programs to plain ASCII. I ... stupid.
For small BASIC programs or sub routines, I ... -
A BEEP program I want to make in Basic. Helpful remarks gratefully receivedI want to explore the possibilities of the BEEP command. So I need to be able to try different combos of pitch/duration and sequences of same. I'm tr…
... into something you could call from BASIC. The pitch bend one is ... -
comp.sys.sinclair Crap Games Competition 2016 is now openHi. Having won, or is it lost (well, whatever it is - I'm just as confused as the rest of you), I am proud to announce that along with Gab Amore (…
... the game title previously printed from BASIC :)[/quote]
I went ... -
Contended Memory, literallyDoes anyone else have the sort of memory where they have trouble just picking out info cold? I know we had a discussion about memory sometime last mo…
[quote="ewgf;888646"]
229385? On a machine that could only handle 16 bit address?
[/quote]
Yup, the SAM treats it's entire address space as linear from BASIC, mapping addresses in CALL/POKE etc into the relevant bank combination. -
A few questions about sound and keys in BASICIf I want sound in my BASIC game I have to use BEEP right ? It seems to lock up the CPU for far too long . On Arjun's page I found how to use CALL 94…
... by OUT 254,24 repeatedly from BASIC, you'l find it generates ... that's as fast as BASIC can run. (It also turns ... -
how to load machine codeI'm reading Jon Caldwell's how to write Spectrum games but can't enter the code! Here's an example:_ LD BC, (score) Call 6683 I tried putting…
... 't enter commands like that from BASIC but you sort of can ... /discussion/53389/where-does-the-basic-program-sit-48k-spectrum-memory ...
RANDOMIZE USR 61000 in BASIC
If you placed your ... -
Starting new discussions or tagging on to existing ones?I do a search for my (hypothetical) question, and find vaguely-related old discussion, but no exact answers. Do I tag my question onto the end of …
There's probably a billion threads rotating around some of the common questions, like "my old speccy doesn't show image on my new TV" or "how to load assembly from basic"... -
how to load machine codeFollowing the links given in various replies to my last discussion resulted in my downloading Mastering machine code on your zxspectrum and typing in…
I find it pretty easy to use machine code from spectrum but all my machine code routines I use so far are pretty small. You can then also easily change the parameters from BASIC itself. -
Spectrum musical capabilities ?This came up on my FB feed and it combines another long time hobby of mine and it's music production :) https://youtu.be/lwCVQvgLSno So the 128…
... can't receive MIDI data from an external device).
You can send MIDI data from BASIC using the Y and Z ... in a PLAY statement; and from assembly language by bit-banging ... -
Spectrum musical capabilities ?This came up on my FB feed and it combines another long time hobby of mine and it's music production :) https://youtu.be/lwCVQvgLSno So the 128…
[quote="kpuchatek;890239"]
I think also 8 channels is BASIC limitation, using MC should be possible to use all 16. [/quote]
You can use all 16 channels from BASIC, using the Y[i]nn[/i] command in a PLAY string. -
Spectrum musical capabilities ?This came up on my FB feed and it combines another long time hobby of mine and it's music production :) https://youtu.be/lwCVQvgLSno So the 128…
Ok so who wants to sell me a 128k Speccy :) It's pretty neat to have MIDI from BASIC. I do use sequencers like Ableton which is pretty powerful but I always find it's best to minimize your options to aid creativity. -
A few Speccy loading questions.So I want my program which is mostly BASIC to automatically run after it's loaded from .tap file. How do I do this ? Also how would I add a loading …
... " LINE 5 only saves the BASIC program and variables. You'd ... as well, and have your BASIC program (or loader) load them ... building the tape in sequence from BASIC.
