Stack pointer

Can anyone give me complete information while performing this situation,A function is running, it has its own stack pointer, memory area now it invokes another function from this point what changes will be in it's memory area and what other changes in data segment, stack segment, heap segment. I want a complete picture of memory architecture?

nitin.goel
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Apr 8th, 2006
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kalayama

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Member Since Sep-2006 | Dec 8th, 2006

There will be a lot of changes in fact. First of all, all the variables the function was suing needs to be pushed into the stack. (we need all these variables when we return from the other function). The Program counter will be pushed to stack too... (When the "return" of second function occurs we should know where to 'return' to)These are the basics which are bound to happen when a function calls another.

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prasanth

Nov 27th, 2006

hi,
There will be no change in memory area .And all the major part will be taken by the stack pointer.It depends on the calling conventions like pascals convention or any other depending on the parameters passed by the function.
The data is stored in registry.

kalayama
Profile Answers by kalayama

Dec 8th, 2006

There will be a lot of changes in fact. First of all, all the variables the function was suing needs to be pushed into the stack. (we need all these variables when we return from the other function). The Program counter will be pushed to stack too... (When the "return" of second function occurs we should know where to 'return' to)These are the basics which are bound to happen when a function calls another.