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MPLAB® XC16 C Compiler User Guide
MPLAB® XC16 C Compiler User Guide
  1. Home
  2. 5 How To's
  3. 5.3 Writing Source Code

  • Notice to Development Tools Customers
  • 1 Preface
  • 2 Compiler Overview
  • 3 Compiler and Other Development Tools
  • 4 Common C Interface
  • 5 How To's
    • 5.1 Installing and Activating the Compiler
    • 5.2 Invoking the Compiler
    • 5.3 Writing Source Code
      • 5.3.1 C Language Specifics
      • 5.3.2 Device-Specific Features
      • 5.3.3 Memory Allocation
      • 5.3.4 Variables
      • 5.3.5 Functions
      • 5.3.6 Interrupts
      • 5.3.7 Assembly Code
    • 5.4 Getting My Application to Do What I Want
    • 5.5 Understanding the Compilation Process
    • 5.6 Fixing Code That Does Not Work
  • 6 XC16 Toolchain and MPLAB X IDE
  • 7 Compiler Command-Line Driver
  • 8 Device-Related Features
  • 9 Differences Between MPLAB XC16 and ANSI C
  • 10 Supported Data Types and Variables
  • 11 Fixed-Point Arithmetic Support
  • 12 Memory Allocation and Access
  • 13 Operators and Statements
  • 14 Register Usage
  • 15 Functions
  • 16 Interrupts
  • 17 Main, Runtime Startup and Reset
  • 18 Mixing C and Assembly Code
  • 19 Library Routines
  • 20 Optimizations
  • 21 Preprocessing
  • 22 Linking Programs
  • 23 Implementation-Defined Behavior
  • 24 Embedded Compiler Compatibility Mode
  • 25 Diagnostics
  • 26 GNU Free Documentation License
  • 27 Deprecated Features
  • 28 Built-in Functions
  • 29 Document Revision History
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5.3 Writing Source Code

This section presents issues that pertain to the source code you write. It has been subdivided into sections listed below.

  • C Language Specifics
  • Device-Specific Features
  • Memory Allocation
  • Variables
  • Functions
  • Interrupts
  • Assembly Code

The online versions of the documents are provided as a courtesy. Verify all content and data in the device’s PDF documentation found on the device product page.

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