C++ & Assembler Problems

[Dereta]

I have a Problem with ASM.
I try to Write a Value to a Adress with ASM.

int rubish;
DWORD aRubish = 0x421F7C;
ReadProcessMemory(cHandle, (void*)aRubish, &rubish, sizeof(rubish), 0);
Sleep(250);
cout << endl << "Adress: " << aRubish << endl << "Rubish Left: " << rubish << endl;
__asm{
	MOV dword ptr [aRubish], 0
	CALL endSeqence
}
ReadProcessMemory(cHandle, (void*)aRubish, &rubish, sizeof(rubish), 0);
cout << "Adress: " << aRubish << endl << "Rubish Left: " << rubish << endl;

This is what i get:

Adress:4333436
Rubish Left: 15
Adress: 0
Rubish Left: 15

At second i try to Override a Sub statement.
So i was try to chance

SUB edx,01

to

SUB edx,00

I try different ways but i don't found a way to do it..

Hop you unterstand me... <.< I know my english are not the best...

Greatz Dereta