SW500010 Microchip Technology, SW500010 Datasheet - Page 163

• Manufacturer Part Number: SW500010
• Description: HI-TECH C PRO FOR PIC10/12/16
• Manufacturer: Microchip Technology
• Type: Compilerr
• Series: PIC10/12/16r

Specifications of SW500010

• Supported Families: PIC10, PIC12, PIC16
• Core Architecture: PIC
• Software Edition: Professional
• Kit Contents: Software And Docs
• Mcu Supported Families: PIC10/12/16
• Tool Type: Compiler
• Lead Free Status / RoHS Status: Not applicable / Not applicable
• For Use With/related Products: PIC10, PIC12, PIC14, PIC16, PIC16E
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 019P; 778-1006; 778-1006

Linker and Utilities
After each tree in call tree, there is an indication of the maximum call depth that might be realised
by that tree. This may be used as a guide to the stack usage of the program. No definitive value can
be given for the program’s total stack usage for several reasons:
The code generator also produces a warning if the maximum stack depth appears to have been
exceeded. For the above reasons, this warning, too, is intended to be a guide to potential stack
problems.
The above call graph example is analysed in the following tutorial.
Certain parts of the call tree may never be reached, reducing that tree’s stack usage;
The contribution of interrupt (or other) trees to the tree associated with the main function
cannot be determined as the point in main’s call tree at which the interrupt (or other function
invocation) will occur cannot be known;
Any additional stack usage by functions, particularly interrupt functions, cannot be known;
and
The assembler optimizer may have replaced function calls with jumps to functions, reducing
that tree’s stack usage.
T
I
indicates that the program compiled consists of two call trees, rooted at the functions
main, which can have up 3 levels of stack used, and intlevel1, which can use up
to two levels of stack. In the example above, the symbol _main is associated with the
function main, and intlevel1 associated with an interrupt function (with an
interrupt level of 1).
Here, the function main takes no parameters and defines 4 bytes of auto variables.
The total size of the APB for main is 4, and this was placed at an offset of 0 in the
program’s auto/parameter psect. The function main may call a function called init.
This function also uses a total of 4 bytes of auto variables. The function main is still
active when init is active so their APBs must occupy distinct memory. (NB main
will always be active during program execution, by definition.) The block for init
follows immediately after that of main’s at address offset 4. The function init does
not call any other functions.
The main function may also call the function byteconv. This function defines a total
of 17 bytes of auto variables. It is called when main is still active, but it is never active
NTERPRETING A
UT RIAL
_get
PRO
size 0,0 offset 47 ; _prep2 may call by _get
COMPILER CALL GRAPH
The graph graph shown above
Map Files
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