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yq8



Joined: 08 May 2015
Posts: 15
yq8
Hello Community,

I am relatively new to fasm and I like to make a little project.
My vision is to create a DLL file with fasm which has two basic functions.
And addition function and a multiplication function.
Both function should accept two integer values and return the result, something like this :

Code:
static int Addition(int a, int b)
{ 
return a+b; 
}

static int Multiplication(int a, int b)
{ 
return a*b; 
}
    


Later on I want to call the DLL from C# by using PInvoke/DLLImport.
Furthermore I want the DLL to work on both, x86 and x64 systems, - so I guess it needs to be built using x86 commands/registers, right (?)

Can someone give me some resources (not the finals solution please otherwise I won't learn anything) to get started to build a small DLL only with the stuff I need.

I hope to hear from you Smile

-yq8dev
Post 23 Jan 2017, 00:11
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Trinitek



Joined: 06 Nov 2011
Posts: 257
Trinitek
If you want to target x86 and x64, you're going to want to write 32-bit code. You'll find a DLL example in the Examples\DLL folder. It includes the source for a DLL, and the source for an EXE that imports it. That should get you off the ground.
Post 23 Jan 2017, 01:53
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