 Notice. New forum software under development. It's going to miss a few functions and look a bit ugly for a while, but I'm working on it full time now as the old forum was too unstable. Couple days, all good. If you notice any issues, please contact me. |
Forum Index : Microcontroller and PC projects : MMBasic for Windows - betas
  Page 5 of 30   |
|||||
| Author | Message | ||||
| matherp Guru  Joined: 11/12/2012 Location: United KingdomPosts: 9119 |
CSUbs are stored twice, once as ascii and once as binary so they are actually less efficient in space than data statements and only just equivalent if they are never read into variables |
||||
| darthvader Regular Member  Joined: 31/01/2020 Location: FrancePosts: 76 |
Hello Peter  I just get your beta 0 from github and try to compile , they are 4 errors , when i tried to compile the alpha version everything was OK. Here the log :  I use VS2022 like you. Cheers. Theory is when we know everything but nothing work ... Practice is when everything work but no one know why ;) |
||||
Mixtel90 Guru Joined: 05/10/2019 Location: United KingdomPosts: 6795 |
Ooh... that's interesting. Not what I expected. In that case I think I'll stick with existing methods. :) Mick Zilog Inside! nascom.info for Nascom & Gemini Preliminary MMBasic docs & my PCB designs |
||||
| matherp Guru Joined: 11/12/2012 Location: United KingdomPosts: 9119 |
V5.07.03b3 MMBasic.zip Should fix most (all?) of the bugs identified above + some others not reported including a complete replacement FFT module (volhout please test) Implements a lifo stack for read save/restore. data 0,1,2,3,4,5,6,7,8,9 data 10,11,12,13,14,15,16,17,18,19 dim a(19) for i=0 to 15 read a(i) next subtest1 for i=16 to 19 read a(i) next for i=0 to 19 if a(i)<>i then print "error in main",i,a(i) next ' sub subtest1 local b(19) read save restore s1data for i=0 to 8 read b(i) next i subtest2 for i=9 to 19 read b(i) next i for i=0 to 19 if b(i)<>i then print "error in s1",i,b(i) next read restore end sub sub subtest2 local c(19) read save restore s2data for i=0 to 19 read c(i) next i for i=0 to 19 if c(i)<>i then print "error in s2",i,c(i) next read restore end sub s1data: data 0,1,2,3,4,5,6,7,8,9 data 10,11,12,13,14,15,16,17,18,19 s2data: data 0,1,2,3,4,5,6,7,8,9 data 10,11,12,13,14,15,16,17,18,19 |
||||
Turbo46 Guru Joined: 24/12/2017 Location: AustraliaPosts: 1611 |
There are many things I don't understand and one of them is this kerfuffle over READ, DATA. I get that DATA in an INC file or a SUB can mess up simple READ statements (are you reading the data in the main file, a SUB or the INC file?). But doesn't the proper use of labels and the RESTORE [label] command solve all of that? See the extracts for 'Conway's Game of Life' from the Welcome tape. SELECT CASE k$ CASE "1" ' glider RESTORE seed1 CASE "2" ' blinker RESTORE seed2 CASE "3" ' toad RESTORE seed3 CASE "4" ' beacon RESTORE seed4 ' Seeds are pairs of x,y cells ending in -1. seed1: ' glider DATA 4,7,5,7,6,7,6,6,5,5,-1 seed2: ' blinker DATA 4,7,5,7,6,7,-1 seed3: ' toad DATA 5,7,6,7,7,7,4,8,5,8,6,8,-1 seed4: ' beacon DATA 4,7,5,7,4,8,7,9,6,10,7,10,-1 seed5: 'Penta-decathlon Those parts done by TassyJim if I remember correctly. There is no data in SUBs or INC files but wouldn't the proper use of labels and the existing RESTORE command avoid any issues? Am I missing something? Bill Keep safe. Live long and prosper. |
||||
thwill Guru Joined: 16/09/2019 Location: United KingdomPosts: 4040 |
Very briefly. 1. I've written a utility subroutine that you want to use, e.g. an encryption function. 2. Every time my subroutine is called it wants to READ some DATA that is specifically for that subroutine and nothing to do with your program. Let's say it provides some initial seed or hash that the encrypter requires. 3. Prior to the latest changes if you want to use my subroutine whilst iterating through DATA of your own you have to go through a "song and dance" involving RESTORE and labels in order to maintain your place in your data. This kerfuffle has been about providing me as the subroutine provider a mechanism by which before I return from my subroutine I can restore the data pointer to the state it was when you called it. That way you don't have to do the "song and dance" and can naively iterate through your DATA in ignorance of the crazy machinations of that difficult Brit. Hope that helps, Tom Edited 2022-03-06 04:30 by thwill Game*Mite, CMM2 Welcome Tape, Creaky old text adventures |
||||
| Turbo46 Guru Joined: 24/12/2017 Location: AustraliaPosts: 1611 |
Hi Tom, I do understand that and Peter's READ SAVE/RESTORE should help if you only need one level of READ SAVE/RESTORE (I think) but. By that are you saying that it could be done using the existing commands? Is it really a 'song and dance'? Bill Keep safe. Live long and prosper. |
||||
| Turbo46 Guru Joined: 24/12/2017 Location: AustraliaPosts: 1611 |
Hi Tom, I have looked at your Crypt.inc file  but that is too much for me to follow.Bill Keep safe. Live long and prosper. |
||||
| Michal Senior Member  Joined: 02/02/2022 Location: PolandPosts: 123 |
Hi I can see Mode -16 is back. Thanks matherp. Michal |
||||
| Volhout Guru Joined: 05/03/2018 Location: NetherlandsPosts: 4238 |
@Peter, Thanks for fixing the FFT. From what I have tested so far all works. I have no idea what caused it, since you must have used the same source code from CMM2 but anyway, it works now. Thanks again Volhout PicomiteVGA PETSCII ROBOTS |
||||
| matherp Guru Joined: 11/12/2012 Location: United KingdomPosts: 9119 |
CMM2 is C. MMB4W is C++. C++ doesn't support the C complex.h header file but has its own incompatible version. The original got the code to compile but clearly wasn't properly functional. The new version is a C++ specific FFT implmentation (from RossetaCode) |
||||
| Volhout Guru Joined: 05/03/2018 Location: NetherlandsPosts: 4238 |
@Peter, This is a low prio, but if you have an idea how to do it .... When MMBasic is started, it uses a certain amount of CPU cycles (on this laptop something like 20%). When you run a program this % increases (the interpreter starts decoding and executing basic commands). On this laptop that is around 50%. Now I have a program that I want to halt to wait for a key pressed. do loop while inkey$="" It is understandable that the basic interpreter executes these basic commands at top speed, and thus the CPU % is around 50% do pause 100 loop while inkey$="" During the pause statement the CPU could be sleeping. And thus CPU usage could be lower ?? Is it possible to lower CPU usage this way ? I am asking this because CPU% means battery usage on a laptop. And when waiting for a key press, we might save time. Or is there a better way to do this ? P.S. All my testing today is on MMB4W running on Wine (Ubuntu20.04) Regards, Volhout Edited 2022-03-06 08:05 by Volhout PicomiteVGA PETSCII ROBOTS |
||||
| Michal Senior Member Joined: 02/02/2022 Location: PolandPosts: 123 |
Hi matherp, Maybe it would be worth adding the full screen and full screan with border options for the current graphics mode of the system? That's what I thought. Michal |
||||
| matherp Guru Joined: 11/12/2012 Location: United KingdomPosts: 9119 |
It used to be like that but resulted in PAUSE only being accurate to +/- 10mSec so I changed it to be tight looping on the accurate system clock. The same issue with INKEY$ during testing various programs didn't work normally as INKEY$/KEYDOWN response could be delayed by up to 10mSec |
||||
| Michal Senior Member Joined: 02/02/2022 Location: PolandPosts: 123 |
This could be a second type of PAUSE for things that do not require a precise clock? Michal |
||||
| Mixtel90 Guru Joined: 05/10/2019 Location: United KingdomPosts: 6795 |
How about read time into a variable and set up a SETTICK to read it and compare with a >variable? There's no repetitive looping then. Edited 2022-03-06 20:19 by Mixtel90 Mick Zilog Inside! nascom.info for Nascom & Gemini Preliminary MMBasic docs & my PCB designs |
||||
| matherp Guru Joined: 11/12/2012 Location: United KingdomPosts: 9119 |
How do you think settick works? |
||||
| Volhout Guru Joined: 05/03/2018 Location: NetherlandsPosts: 4238 |
I have no idea how complex this is but PAUSE n (as accurate as is) SLEEP n (with 10ms inaccuracy) Volhout PicomiteVGA PETSCII ROBOTS |
||||
| thwill Guru Joined: 16/09/2019 Location: United KingdomPosts: 4040 |
FWIW: a PAUSE in MMB4L does actually sleep and yield (as does waiting for input at the MMBasic prompt) and I accept that MMB4L's timer is not as accurate as that of a 'mite, Linux is not a Real Time Operating System. My TODO list contains the following note "Add option to PAUSE controlling whether it nanosleeps or not, or an OPTION to MMBasic controlling all sleep behaviour". Peter, thanks for the updates, doing my own thing today but will give MMB4W a good thrash next week. Bill, will follow up your question tomorrow too. Best wishes, Tom Game*Mite, CMM2 Welcome Tape, Creaky old text adventures |
||||
| Mixtel90 Guru Joined: 05/10/2019 Location: United KingdomPosts: 6795 |
Forgot - the "interrupts" aren't interrupts. :( I plead mitigating circumstances as our toilet cistern cracked very early this morning (it was discovered at 0200) and the bathroom, downstairs hallway and downstairs front room all have water damage to both decorating and contents now. :( Edited 2022-03-07 00:22 by Mixtel90 Mick Zilog Inside! nascom.info for Nascom & Gemini Preliminary MMBasic docs & my PCB designs |
||||
| Page 5 of 30 |
|||||
 Print this page |
