 C166 User's Guide | |
| Home Products Events Support | |
Technical Support
On-Line Manuals
C166 User's Guide
C166 Introduction Compiling Programs Language Extensions Preprocessor 
Advanced Programming Sections, Classes, and Groups 
Special Sections Locating Sections Customization Files Startup Code STARTUP.A66 START167.A66 Basic I/O Memory Allocation TRAPS.C Optimizer Optimizer Options General Optimizations 80C166-Specific Optimizations Global Register Coloring DPP Registers Stacks System Stack User Stack Stack Sizes System Stack Size User Stack Size XBUS Memory and Peripherals On-chip XRAM XBUS Peripherals Interfacing C to Assembler Function Parameters Function Return Values Using the SRC Directive Register Usage Example Routines TINY Model SMALL Model COMPACT Model MEDIUM Model LARGE Model Data Storage Formats Bit Variables 1-byte Scalars 2-byte Scalars 4-byte Scalars float Scalars float Errors double Scalars double Errors near Pointers far Pointers huge Pointers xhuge Pointers Absolute Memory Access Absolute Access Macros Linker Location Controls Debugging Error Messages Library Reference AppendixOptimizer Options
- NOALIAS
Disables alias checking for pointer accesses. The C166 Compiler ignores pointer-write optimizations during the optimization phase. If a register holds a variable, the variable is reused, even when a pointer could modify that variable. - NODPPSAVE
Does not save DPP registers in interrupt function. This directive may be used when the application does not modify the contents of DPP0 and DPP3. In 167 Mode (MOD167 directive), these DPP register are not modified. - NOFIXDPP
Reassigns the DPP registers to allow as much as 64 KBytes space for near variables. Without this directive, the compiler assumes DPP2 is used for user-stack accesses. - OPTIMIZE(SIZE)
Reduces program code by replacing common C operations (such as shift long) with subprograms. - STATIC
Allocates automatic variables in static memory rather than on the user stack. The code is no longer reentrant, but the code size and execution speed improve.
| Contact Site Map Press Privacy | Copyright © 2010 Keil™, An ARM® Company. All rights reserved. |
