8. C-style Procedure Call Example

• The C_style_procedure_call.asm sample demonstrates standard entry into procedure used in high-level programming language C.

• Stack grows in the direction of the lower addresses.

• Local variables exist on the stack while the procedure is excuting.

• The address of the first parameter is defined as [ EBP + 8 ] .

• Address of the first local variable, if it is reserved, is defined as [ EBP - 4 ], with the DWORD variable in mind.

• C approach to passing parameters does not require procedure to restore stack volume occupied by its parameters.

• Therefore, the caller is responsible for making this adjustment:

      add esp, 12 ; destroy the pushed arguments, C-style calling convention