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Subject: local variables in vc++ 9.0 disasm

Original Message
Name: ryt
Date: May 9, 2008 at 06:02:57 Pacific
Subject: local variables in vc++ 9.0 disasm
OS: WinVista
CPU/Ram: 2400+/512
Model/Manufacturer: amd
Comment:
hello,
I made this c++ program and created asm listing:

int main(){
int var = 3;
return 0;
}

asm listing:
...
_TEXT SEGMENT
_var$ = -8 ; size = 4
_main PROC
...
mov DWORD PTR _var$[ebp], 3
...

I dont understand fully this local variable in asm. There is "mov DWORD PTR", asm puts 3 in location size DWORD. "[ebp]" tells to store it at stack frame. "_var$" is an equate and tells to store it -8 from stack frame trough indexing ( [_var$+ebp] ).
What I dont understand why at -8, why not at -4 since it is a first local variable. What is the meaning of $. And why asm stores equates in _TEXT ?


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