Watcom C++ inline assembler

I'm having many troubles with inline asm block referring to C++ data, either structs or classes. I read on the help files that Watcom inline assembler doesn't support TASM/MASM macros for accessing structs, and that should be only a readability problem; the "real" problem is with member functions, because I need to refer to 'this' pointer, at least. But 'this' is an undeclared reference in inline asm blocks, so this is my only solution, at the moment (it's a stupid example):

Code:

#include <stdio.h>

class myClass
{
public:
	void myFunction();

private:
	int myMember1;
	int myMember2;
	int myMember3;

} myObject;

void myClass::myFunction()
{
	int a, b, c;

	myMember1 = 10;
	myMember2 = 20;
	myMember3 = 30;

	const myClass* const myThis = this;

	__asm
	{
		mov		ebx, myThis
		mov		eax, [ebx]
		mov		a, eax
		mov		eax, [ebx+4]
		mov		b, eax
		mov		eax, [ebx+8]
		mov		c, eax
	}

	printf( "%d %d %d\n", a, b, c );
}

void main()
{
	myObject.myFunction();
}

I would be very pleased if anyone tells me an alternative and more flexible solution. I'm starting to hate Watcom! Version is 11 (patched to 11.0c from openwatcom.org).

P.S.: 'this' is on the stack but I cannot find it through ebp/esp. I tried many values, but I'm for [ebp+8] (return address+pushed ebp), and doesn't work at all!

Bye!