why is this

Code:

mov [from], [ofs]

gives compiler error, no matter how i cast the variables
can i not "mov" with operands as variables?

You can't do that.

Code:

mov [from], [ofs] ;wrong you can't move memory to memory.

You can do
mov eax, [ofs]
mov [from],eax
or 
push [ofs]
pop [from]

that's what i thought. thank's for confirming it

Originally Posted by kibbles18

that's what i thought. thank's for confirming it

There's a way to move memory to memory, the movs (movsb/movsb) can do that:

movs takes two operands in (e)si and (e)di it then moves the contents from esi to edi:

Code:

mov esi, 401000h
mov edi, 401100h
movsw                  // moves a word (2 bytes) from [esi] to [edi]

why is this

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