Using PureBasic Functions in ASM Libraries

BackupUser · Post by **BackupUser** » Wed May 29, 2002 9:45 pm

Restored from previous forum. Originally posted by Franco.

In the desc file you can declare which PureBasic Libraries you are using in your lib.
Can't get it to work...

Has anyone progress with that?

Have a nice day...
Franco

Sometimes you have to go a lonely way to accomplish genius things.

BackupUser · Post by **BackupUser** » Wed May 29, 2002 11:25 pm

Restored from previous forum. Originally posted by El_Choni.

Hi Franco,

You can declare them, but it has no effect yet. In fact, this is the only problem I know which makes coding PB libraries with PB impossible at this time (I tried to code a PB PureLibrary maker some time ago).

PB functions are only included in the .exe if the PB source code includes them. That is, if your asm library uses PB_Str and the code using the library does not include Str(), the thing will be uncompilable.

But, as declaration of PB libraries is possible within the Desc file, we all hope this will be working soon.

Bye,

El_Choni

BackupUser · Post by **BackupUser** » Thu May 30, 2002 1:07 am

Restored from previous forum. Originally posted by fred.

You can do it.

For example in the .DESC:

1
Window

Will include the Window lib with your library

To access the PB commands:

extern PB_OpenWindow

PUSH xxx
...
CALL PB_OpenWindow

Should work...

Fred - AlphaSND

BackupUser · Post by **BackupUser** » Thu May 30, 2002 2:25 am

Restored from previous forum. Originally posted by Franco.

Hi El_Choni, thanks for your response.
I had till now no luck to get it to work too.

Hi Fred, thanks for you tip it's truly appreciated.
But that's what I did. I will do a second try as soon as possible.
Maybe there is something I missed.
Thanks.

Have a nice day...
Franco

Sometimes you have to go a lonely way to accomplish genius things.

BackupUser · Post by **BackupUser** » Fri May 31, 2002 9:01 am

Restored from previous forum. Originally posted by Danilo.

Franco, i had the same problem before.
Its because some functions are written
in C and with C-Calling-Convention.

If its written in ASM, you do

Code: Select all

 EXTERN PB_OpenWindow


 PUSH dword something ; 7 - Title$
 PUSH dword something ; 6 - Flags
 PUSH dword something ; 5 - Height
 PUSH dword something ; 4 - Width
 PUSH dword something ; 3 - y
 PUSH dword something ; 2 - x
 PUSH dword something ; 1 - #Window
 CALL PB_OpenWindow

When the LIBs are written in C, you do:

Code: Select all

 EXTERN _PB_OpenWindow@28 ; 7 ARGs x 4bytes = 28 bytes


 same PUSHes....
 CALL _PB_OpenWindow@28

Its like calling WinAPI from Assembly, you know.

cya,
...Danilo

(registered PureBasic user)

BackupUser · Post by **BackupUser** » Fri May 31, 2002 3:06 pm

Restored from previous forum. Originally posted by Franco.

Thanks Danilo for the additional information.

How do I know in which language the lib is written

It seems I have to go a long, long way... to get all things straight.

Suppose that the doc's are lacking some needed info.

Have a nice day...
Franco

Sometimes you have to go a lonely way to accomplish genius things.