Problem Understanding CONFIG SUBMODE = NEW

njepsen · Joined: 13 Aug 2007 Posts: 469

Historically. I have been using submode = old, and I am reluctant to change because my program is 8000 lines long, with many units in the field.
But I am considering it.

I have a question- the help for submode says

albertsm · Joined: 09 Apr 2004 Posts: 5921 Location: Holland

it means what it says.
But there are 2 different include files. Like this :

$regfile...
$include "myheaders.inc"

your code

$include "mysubs.inc"

myheaders.inc would have content like :
declare sub test()

and mysubs.inc would have the implementation like:
sub test()
..
end sub

When using submode=new, there is no need for a declaration as they are extracted from the implementation. And you must put the implementation before the main code since otherwise the calling code has no idea about these subs and functions.

In that case the code will end up after your code and only the used modules are included. in the old way, the code ends up where you put it.
For that case it is needed that the implementation goes behind the code. and since the calling code has no idea in that case, you must put the declaration in front.
Otherwise consider this :

your code
...
sub test
nop
end sub

the main code would walk into the sub and get a return without calling.
submode=new will remove that code and put it automatic behind your code and only the modules that were actually used.

njepsen · Joined: 13 Aug 2007 Posts: 469

Thankyou mark for taking the time to explain that.

You said:

albertsm · Joined: 09 Apr 2004 Posts: 5921 Location: Holland

you show no include. please read your original questions and my reply.
i have no idea about what you find confusing but when you do not use include as in your sample, you can ignore it.
if you do use include, show an actual good short sample.

njepsen · Joined: 13 Aug 2007 Posts: 469

Hi Mark,
I understand your explanation about Include.

What i was commenting on was your statement about code "walking into the subs", and was asking - why would you write code that simply wandered on aimlessly into a sub; why not use a loop to prevent this, as i showed.

MichaelB. · Joined: 04 May 2017 Posts: 58

Hello,
My first confrontation with with a .inc File.

I used vers. 2.0.8.1:
Edit: Same Problem in vers. 2.0.8.2
$lib "glcdKS108.lib"
Config Submode = New
$Include "Test.inc"

// the Test.inc is used to Draw a Box and make other calculations. The "Calculations" dont have any effect for the Box drawing. It is the Same Box Draw as the Regular Bascom Statement, but i want to have it in the SUB, to have it all in one.

Do
Draw_Box 10 , 10 , 0 , 0 , 1
Loop
End

// But it do not execute it well, it draws a Box out of Dimensions. Sometimes a Stripe on the Egde.
// When i Extract the Box drawing Bascom Statement from the .inc File Box (10 , 10) - (0 , 0), 1
// to the DO Loop, it works as expected, but the rest in the .inc File isnt Working.

AdrianJ · Joined: 16 Jan 2006 Posts: 2483 Location: Queensland

@njepsen
Maybe just to clarify a bit further:

If you dont use $includes at all, then its up to you to ensure your declarations, main code and subs are in the right places. You seem to do this already. In that case it wont matter whether you use submode = new or not.

Many people however want to keep all their commonly used subs in include files, and just $include the lot, or whichever ones they use for a given project. Then with submode = old, it matters that there have to be separate inc files for the declarations and the actual sub codes, and the programmer has to put the $includes in the right places in the main code.

For people who do this, it makes it very much easier for them if the declarations and the sub codes are all together in one include file, and let the compiler figure out where to put all the bits. So they use submode = new.

njepsen · Joined: 13 Aug 2007 Posts: 469

That clarifies it nicely. Thanks Adrian.

neil