Jump to main content
MPLAB® XC32 C/C++ Compiler User's Guide for PIC32M MCUs
MPLAB® XC32 C/C++ Compiler User's Guide for PIC32M MCUs
  1. Home
  2. 3 How To's
  3. 3.3 Writing Source Code
  4. 3.3.7 Assembly Code

  • Notice to Development Tools Customers
  • 1 Preface
  • 2 Compiler Overview
  • 3 How To's
    • 3.1 Installing and Activating the Compiler
    • 3.2 Invoking the Compiler
    • 3.3 Writing Source Code
      • 3.3.1 C Language Specifics
      • 3.3.2 Device-Specific Features
      • 3.3.3 Memory Allocation
      • 3.3.4 Variables
      • 3.3.5 Functions
      • 3.3.6 Interrupts
      • 3.3.7 Assembly Code
        • 3.3.7.1 How Should I Combine Assembly and C Code?
        • 3.3.7.2 What Do I Need Other Than Instructions in an Assembly Source File?
        • 3.3.7.3 How Do I Access C Objects from Assembly Code?
        • 3.3.7.4 How Can I Access SFRs From Within Assembly Code?
        • 3.3.7.5 What Things Must I Manage When Writing Assembly Code?
    • 3.4 Getting My Application To Do What I Want
    • 3.5 Understanding the Compilation Process
    • 3.6 Fixing Code That Does Not Work
  • 4 XC32 Toolchain and MPLAB X IDE
  • 5 Command-line Driver
  • 6 ANSI C Standard Issues
  • 7 Device-Related Features
  • 8 Code Coverage
  • 9 Supported Data Types and Variables
  • 10 Memory Allocation and Access
  • 11 Floating-point Support
  • 12 Fixed-Point Arithmetic Support
  • 13 Operators and Statements
  • 14 Register Usage
  • 15 Stack
  • 16 Functions
  • 17 Interrupts
  • 18 Main, Runtime Start-up and Reset
  • 19 Library Routines
  • 20 Mixing C/C++ and Assembly Language
  • 21 Optimizations
  • 22 Preprocessing
  • 23 Linking Programs
  • 24 Embedded Compiler Compatibility Mode
  • 25 Common C Interface
  • 26 C Implementation-Defined Behavior
  • 27 C++ Implementation-Defined Behavior
  • 28 Deprecated Features
  • 29 Built-In Functions
  • 30 Built-In DSP Functions
  • 31 PIC32 DSP Library
  • 32 PIC32 Debug-Support Library
  • 33 DSP Wrapper Functions
  • 34 ASCII Character Set
  • 35 Document Revision History
  • The Microchip Website
  • Product Change Notification Service
  • Customer Support
  • Product Identification System
  • Microchip Devices Code Protection Feature
  • Legal Notice
  • Trademarks
  • Quality Management System
  • Worldwide Sales and Service

3.3.7 Assembly Code

This section examines questions that arise when writing assembly code as part of a C project.

  • How Should I Combine Assembly and C Code?
  • What Do I Need Other Than Instructions in an Assembly Source File?
  • How Do I Access C Objects from Assembly Code?
  • How Can I Access SFRs From Within Assembly Code?
  • What Things Must I Manage When Writing Assembly Code?

About
Company
Careers
Contact Us
Media Center
Investor Relations
Corporate Responsibility

Support
Microchip Forums
AVR Freaks
Design Help
Technical Support
Export Control Data
PCNs

Quick Links
microchipDIRECT.com
Microchip University
myMicrochip
Blogs
Reference Designs
Parametric Search
Microchip Logo

Microchip Technology Inc.

2355 West Chandler Blvd.

Chandler, Arizona, USA

Microchip Facebook
Microchip LinkedIn
Microchip Twitter
Microchip Instagram
Microchip Weibo

© Copyright 1998-2024 Microchip Technology Inc. All rights reserved. Shanghai ICP Recordal No.09049794

Terms Of Use
Privacy Notice
Legal
Your Privacy Choices California Consumer Privacy Act (CCPA) Opt-Out Icon