What Will Happen If You Do Xor Eax Eax
Counter cmp eax edx.
What will happen if you do xor eax eax. This likely indicates that eax stores an array of 16 bit 2 byte values and that ebx is an offset into it. It may be better to not use macros until you have a firm grasp on pure assembly programming. Therefore or eax eax does about the same thing as cmp eax 0. Triple the value of eax eax eax 3 lea edi eax ebx 2.
Mov eax ecx jmp kraj izlaz iz rekurzije. Lea edi eax eax 2. The only key issue you left out is the fact that these dirty bits are not a part of the visible processor state i e. For example if you reset the esp register to zero within a function the program will most likely crash later e g.
Mov eax edi kraj. Note the similarities between this and the previous example. If function is not found jump to end found. If the program tries to return from the.
The counter eax now holds the position of winexec mov ecx ebp 0ch. Check if last function is reached jb myloop. There is no way to save restore them across an interrupt. The same math is being done but for a different reason.
There s still a community for the game and my knowledge with code is rudimentary at best. If not the last loop add esp 26h jmp myend. Zf 1 if equal zf 0 if not jz found inc eax. When writing a program or inline assembly code under windows you can use all the general purpose registers but using the special registers esp and ebp can interfere with the operation of the program.
I know how to code some basic stuff but i m still very much a novice and i know this kind of thing is way over my head. Even better would be test eax eax. If the instruction before the if modifies eax and sets the z flag most instructions like add do this you don t need to set it again. The encoding of the machine instruction is 2 bytes for xor eax eax if you were doing a load mov then you d have to use a numeric cknstant which would be 4 bytes to represent zero and then more for the mov itself.
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