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what functions/c commands utilizes stacK in ccs compiler?

 
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atabac_2000



Joined: 21 Apr 2004
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what functions/c commands utilizes stacK in ccs compiler?
PostPosted: Thu Jun 03, 2004 2:36 am     Reply with quote
does the do while loop use hardware stack? what other ccs implementation of c and also its own built-in functions use up harware stack?
Ttelmah
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Re: what functions/c commands utilizes stacK in ccs compiler
PostPosted: Thu Jun 03, 2004 2:40 am     Reply with quote
atabac_2000 wrote:
does the do while loop use hardware stack? what other ccs implementation of c and also its own built-in functions use up harware stack?

The hardware stack on a PIC, is _only_ basically used for call/return operations. It is possible on the latter chips to manually access the stack, but it is small, & quite slow to access this way. The stack is not a general purpose 'register' stack as is found on many other processors. if you call a subroutine, and this is not coded as 'inline', then the stack will be used to hold the return address. Otherwise the stack will not be used.

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