Re: [PIC] Learning C

write a function:

void * get_stack_ptr(void)
{
	int x;

	return &x;
}

This will return the address of the local variable x which will be on the 
stack.

use it as:

	if ((unsigned long)get_stack_ptr() == (unsigned long)fixed_value+N)

// where N is a constant TBD (around +/- 4 to 12)


On Fri, 15 Nov 2024, David VanHorn wrote:

> Same here. I can work with c fairly well, but some things seem unusually
> difficult in c.  Like comparing the current value of the stack pointer to a
> fixed value ( used in my sanity check routine)  I assume there is a way to
> get there.
>
> On Sun, Nov 10, 2024, 11:34 AM David C Brown <[email protected]> wrote:
>
>> Although I enjoy programming in Assembler, the fact that so many libraries
>> abd code examples are in C I think that the time has come for me to learn
>> that language.
>>
>> Any advice on how to do that would be welcomed, be it a book or online
>> resources.
>> I am a competent programmer having programmed in  with Forth, Fortran.
>> \Pascal, Visual basic
>> __________________________________________
>> David C Brown
>> 43 Bings Road
>> Whaley Bridge
>> High Peak                           Phone: 01663 733236
>> Derbyshire                eMail: [email protected]
>> SK23 7ND          web: www.bings-knowle.co.uk/dcb
>> <http://www.jb.man.ac.uk/~dcb>
>>
>>
>>
>> *Sent from my etch-a-sketch*
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