[gameprogrammer] How to call function with parameters on stack

Regarding the previous posts, I finally figured it how to push arbitrary function parameters on the stack, and call a function on another system with those parameters. If anyone is interested: 
http://www.rakkar.org/sourcecode/PureRPC.html

I have the working solution inside RakNet

Header:
http://raknetjenkinsso.svn.sourceforge.net/viewvc/raknetjenkinsso/trunk/Source/AutoRPC.h?revision=100&view=markup

Source:
http://raknetjenkinsso.svn.sourceforge.net/viewvc/raknetjenkinsso/trunk/Source/AutoRPC.cpp?revision=102&view=markup
Only prob. right now is that I don't know how to do the equivalent assembly on Linux, so I have an #ifdef _WIN32 there
void AutoRPC::CallWithStack(const char *inputStack, unsigned int numBytes, void *functionPtr, void *lastParam, void *thisPtr) 
{
        const int loopCount = numBytes/MIN_FUNC_STACK_ALIGNMENT;
#ifdef _WIN32
        ASSEMBLY_BLOCK
        {
                // Push lastParam
                push            lastParam
                // Allocate data stack
                sub         esp,numBytes
                // Number of times to move MIN_FUNC_STACK_ALIGNMENT bytes
                mov         ecx,loopCount
                // source is esi
                mov         esi,inputStack
                // destination is esp, stored in edi
                mov         edi,esp
                // Copy data to function stack, until ecx is 0
                rep movs    dword ptr es:[edi],dword ptr [esi]
                // Push this pointer if not 0
                cmp                     thisPtr,0
                // If passed thisPtr, do a class member call.
                je                      no_this_ptr
                push            thisPtr
                call            functionPtr
                pop         thisPtr
                jmp                     done
no_this_ptr:
                // Regular C call
                call            functionPtr
done:
                add         esp,numBytes
                pop                     lastParam
        }
#endif
}

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