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Forum Index : Microcontroller and PC projects : File Manager for PicoMite
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electricat Senior Member  Joined: 30/11/2020 Location: LithuaniaPosts: 161 |
If FM manager writen not in MMbasic, but in C++ and then compiled to Csub -->> call ? Then it might work? No? |
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Mixtel90 Guru  Joined: 05/10/2019 Location: United KingdomPosts: 6771 |
Surely only SUBs called from the library become part of your program? Otherwise there's no point in having it as every font etc will be part of your program too, even if you don't use them. Have I misunderstood how the library works? If a library routine specifies local variables then there should be no collision either (only if they are globals). Mick Zilog Inside! nascom.info for Nascom & Gemini Preliminary MMBasic docs & my PCB designs |
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phil99 Guru Joined: 11/02/2018 Location: AustraliaPosts: 2134 |
As Mick said, make it a Sub. As long as the Sub name and the names of it's Subs are different to the names of the Subs in the main program it works. |
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| Mixtel90 Guru Joined: 05/10/2019 Location: United KingdomPosts: 6771 |
If I've understood correctly, library routines are available to your programs but are not part of them and don't take up user RAM space. e.g. a large font in the library costs you nothing in RAM and can be used in several programs. I'm not sure if they are copied into RAM to run them or if they run from flash though (I think it's the latter). I've not used the library on the Pico so I have no practical experience of this. It takes up a valuable flash slot. Mick Zilog Inside! nascom.info for Nascom & Gemini Preliminary MMBasic docs & my PCB designs |
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| PhenixRising Guru Joined: 07/11/2023 Location: United KingdomPosts: 856 |
If that's the case, does this mean that a routine in the library would take a performance hit? |
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| Volhout Guru Joined: 05/03/2018 Location: NetherlandsPosts: 4222 |
@javavi, I think I found it. Try this version. It copies, and moves files correctly now. Problem was caused by the path name, that did not include trailing "/". This is tested on PicoMiteVGA MMBAsic 6.0.0 beta 6 (2040 code) Volhout fm12_bf2.zip P.S. this is not the "downgraded" version. I intend to stay on 6.0.0 (or fall back to 5.09.00). For me 5.08.00 prevents me from running some of my own programs. Sorry electricat. But I understand that this may be an issue for others too. Since 5.08.00 at the moment is the "stable release" and widely available (Geoff's website). Edited 2024-09-25 20:26 by Volhout PicomiteVGA PETSCII ROBOTS |
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| Mixtel90 Guru Joined: 05/10/2019 Location: United KingdomPosts: 6771 |
@ PhenixRising I suspect so, but I've never tried it. Flash is going to be slower than RAM unless there's a read cache in the way - which there may well be. In that case the difference may be minimal. Flash on the Pico is pretty quick. If you need maximum speed then you can't beat in-line code. If a routine is only needed a few times, and not in a loop, then getting it from the library is probably fine in almost every case. I used to use it on the Micromite for my ANSI translation to send simple graphics, coloured text etc. to the console. Edited 2024-09-25 20:26 by Mixtel90 Mick Zilog Inside! nascom.info for Nascom & Gemini Preliminary MMBasic docs & my PCB designs |
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| Volhout Guru Joined: 05/03/2018 Location: NetherlandsPosts: 4222 |
Phenix, The library can be seen exactly as the name says. You can store subroutines in the library (the ones that are debugged) and have them available to all programs that you run. Example: you use this routine a lot FUNCTION double(a) double=a+a END FUNCTION You type "LIBRARY SAVE" And this function is stored in library. In any program you load, or write, you can now use the function "double()". It is as if the function "double()" has become part of MMBasic. You don't see it in any program, but it is there. You can use "double()" also on the commandline. And that is what everyone is discussing now. I think FM should not be in the library, becuase it uses many variables. And these variables would become "unavailable" for every program you want to run. Becuase they are already assigned in the FM.bas program (DIM xxx). MMBasic will simply tell you the variable is already assigned. And then it is up to you to find out where (in the library) and how to work around it. Here is a nice program to put in the library... Sub FreePins Local n,gp$,p,pu$ For n=0 To 29 gp$ = "GP"+Str$(n) p = MM.Info(pinno gp$) pu$ = MM.Info(pin p) Print gp$, p, pu$ Next End Sub Load the program, then type "LIBRARY SAVE". Then (commandline) you can type "freepins", and it shows you what pins on the picomite are not assigned Volhout Edited 2024-09-25 20:44 by Volhout PicomiteVGA PETSCII ROBOTS |
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| Mixtel90 Guru Joined: 05/10/2019 Location: United KingdomPosts: 6771 |
Can you define variables as LOCAL in the library routines? Mick Zilog Inside! nascom.info for Nascom & Gemini Preliminary MMBasic docs & my PCB designs |
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| Volhout Guru Joined: 05/03/2018 Location: NetherlandsPosts: 4222 |
Hi Mick, Yes, you can. And if you take the FM.bas code you can rewrite the whole file manager. Change every SUB and FUNCTION in the filemanager to inline code (since you cannot have a SUB inside a SUB) and change every variable to a local variable. I think it will be a major task. Volhout PicomiteVGA PETSCII ROBOTS |
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| Mixtel90 Guru Joined: 05/10/2019 Location: United KingdomPosts: 6771 |
Ah, I didn't know about the nested SUBs problem. :( ---------------- Silly me - it's that you can't *define* a SUB from within a SUB. That makes sense. You can call a library SUB from within a library SUB. I've just tried it. :) So, SUB fm (or whatever you call it) can only contain calls to the other SUBs. That's a good way anyway. All SUBs live on the same level, root of flash slot 3. . Edited 2024-09-25 21:35 by Mixtel90 Mick Zilog Inside! nascom.info for Nascom & Gemini Preliminary MMBasic docs & my PCB designs |
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| Volhout Guru Joined: 05/03/2018 Location: NetherlandsPosts: 4222 |
Mick, You can "call" a sub from within a sub. But... If you want the FM in the library, the FM itself must be a sub. But the FM itself contains subs. try this SUB filemanager SUB do_it END SUB 'do it END SUB 'filemanager PicomiteVGA PETSCII ROBOTS |
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| Mixtel90 Guru Joined: 05/10/2019 Location: United KingdomPosts: 6771 |
You wouldn't normally do that though. You'd use SUB fm do_it do_something_else end sub sub do_it ... ... end sub sub do_something_else ... ... end sub Mick Zilog Inside! nascom.info for Nascom & Gemini Preliminary MMBasic docs & my PCB designs |
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| phil99 Guru Joined: 11/02/2018 Location: AustraliaPosts: 2134 |
Yes, that is how I have always done it. You only turn the the program into a Sub. Its subs remain separate. I also used it a lot on the MM2. As noted, because the library is a shared space all variables need to be local. |
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| Mixtel90 Guru Joined: 05/10/2019 Location: United KingdomPosts: 6771 |
My ANSI routines for the Micromite used nested SUBs right from the start because it was easier to write a function that sends ESC[ followed by the rest of the command string. I thought it was odd if it didn't work on the Pico. 'these were in the library Sub ch:Print Chr$(27);"[";:End Sub Sub Vcls:ch:Print "2J";:End Sub Sub Vch:ch:Print "H";:End Sub ch isn't normally called by a user program, although it's available to it. Vcls clears the screen by sending ESC[23 Vch is cursor home, sending ESC[H There was a lot more to it than those two. :) Mick Zilog Inside! nascom.info for Nascom & Gemini Preliminary MMBasic docs & my PCB designs |
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| PhenixRising Guru Joined: 07/11/2023 Location: United KingdomPosts: 856 |
I use them all the time and exactly as listed  |
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| electricat Senior Member Joined: 30/11/2020 Location: LithuaniaPosts: 161 |
I had idea. Now we have 3 fixed FLASH slots and drive A: I liked drive A:\ much but as we see, sometimes we would be happy to have additional "USER" flash slots (with FIXED 1,2,3 as standart for program compatibility) So if there would be some kind of --->> OPTION DEFINE USERSLOT n e.i. possibility to define flash slots at cost of A:\ flash mem , it might be even more flexible system. Is it good idea? No? Edited 2024-09-25 23:10 by electricat |
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| Volhout Guru Joined: 05/03/2018 Location: NetherlandsPosts: 4222 |
Guys, We have all the tools we need Library drive a drive b flash slots And all can be connected to a function key. Volhout PicomiteVGA PETSCII ROBOTS |
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| dddns Newbie  Joined: 20/09/2024 Location: GermanyPosts: 10 |
Hello, I'm not (yet) a basic programmer and you are specialists. What would it mean, to get the Filemanager running on lcdpanels? Is there an easy way to translate/get around these VGA specific tile commands? Regards Dietmar |
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javavi Senior Member Joined: 01/10/2023 Location: UkrainePosts: 203 |
Thank you very much for your efforts! Accepted corrections. And also added viewing of .BMP files, though in B/W.  FM_v13.zip |
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