 Cx51 User's Guide | |
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Cx51 User's Guide
Cx51 Introduction Compiling Programs Language Extensions Preprocessor Advanced Programming Customization Files
Startup Code Variable Initialization Code XBANKING.A51 Basic I/O Memory Allocation Optimizer Optimizer Options General Optimizations 8051-Specific Optimizations Global Register Coloring Segment Naming Conventions Data Objects Program Objects Parameters and Local Variables Interfacing C to Assembler Global Variables Function Parameters Passing in Memory Passing in Registers Function Return Values Using the SRC Directive Register Usage Overlaying Segments Small Model Example Compact Model Example Large Model Example Interfacing C programs to PL/M-51 Data Storage Formats Bit Variables 1-Byte Scalars 2-Byte Scalars 4-Byte Scalars Generic and Far Pointers Floating-point Numbers Floating-point Errors Absolute Memory Locations Absolute Access Macros Linker Location Controls The _at_ Keyword Debugging 8051 Derivatives Error Messages Library Reference AppendixAdvanced Programming
This advanced programming topic presents information that experienced software engineers will find invaluable. Knowledge of these topics is not necessary to successfully create an embedded 8051 target program using the Cx51 Compiler. However, the following topics provide insight into how many non-standard procedures are accomplished.
Advanced programming discusses the following topics:
- Files you may alter to customize the startup procedures
- Files you may alter to customize run-time execution of library routines
- Conventions the Cx51 Compiler uses to name code and data segments
- How to interface Cx51 functions to assembly routines
- Data storage formats for the different Cx51 data types
- Different optimizing features of the Cx51 Compiler
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