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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
START_V2.A66
START_V3.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
Appendix
Stack Sizes
The C166 Compiler cannot calculate the exact stack usage of your application program because it does not detect the actual program flow and can not know about the interrupt capabilities of your target system.
The default settings 512 bytes for the system stack and 4096 bytes for the user stack are typically enough for most applications.
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