SW500009 Microchip Technology, SW500009 Datasheet - Page 43

• Manufacturer Part Number: SW500009
• Description: HI-TECH FOR DSPIC/PIC24
• Manufacturer: Microchip Technology
• Type: Compilerr
• Series: PIC24 & DsPICr

Specifications of SW500009

• Supported Families: PIC24
• Core Architecture: PIC, DsPIC
• Software Edition: Standard
• Kit Contents: Software And Docs
• Tool Type: Compiler
• Mcu Supported Families: PIC24 MCUs And DsPIC DSCs
• Lead Free Status / RoHS Status: Not applicable / RoHS Compliant
• For Use With/related Products: DSPIC3X/PIC24
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 025; 778-1003; 778-1003

Chapter 3
C Language Features
HI-TECH PICC STD supports a number of special features and extensions to the C language which
are designed to ease the task of producing ROM-based applications. This chapter documents the
compiler options and special language features which are specific to these devices.
3.1 ANSI Standard Issues
3.1.1 Implementation-defined behaviour
Certain sections of the ANSI standard have implementation-defined behaviour. This means that the
exact behaviour of some C code can vary from compiler to compiler. Throughout this manual are
sections describing how the HI-TECH C compiler behaves in such situations.
3.2 Processor-related Features
HI-TECH C has several features which relate directly to the PIC architecture and instruction set.
These detailed in the following sections.
3.2.1 Stack
The stack on PIC processors is limited in depth and cannot be manipulated directly. It is left up to
the programmer to ensure that the maximum stack dept is not exceeded. A call graph is provided by
the linker when generating a MAP file. This will indicate the stack levels at each function call.
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