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Contents
Tri-Graph Sequences .......................................................................................... 21
Compatibility Notes ........................................................................................... 23
Design Documentation ....................................................................................... 23
Summary ............................................................................................................ 23
Quiz .................................................................................................................... 25
Chapter 3: Preprocessor Directives ����������������������������������������������������������������������27
Standard Preprocessor Directives ...................................................................... 27
#define id text ................................................................................................... 27
#include <filename> or #include “filename” ...................................................29
#ifdef #ifndef #else #endif #undef ...................................................................29
#if #else #elif #endif ........................................................................................30
#error ................................................................................................................ 30
#nolist #list ....................................................................................................... 31
Compatibility Notes ........................................................................................... 31
Nonstandard Pragmas ........................................................................................ 32
#warning ..........................................................................................................32
#use delay .........................................................................................................32
About Frequency .............................................................................................. 32
#use rs232 (options) .........................................................................................33
#fuses options ...................................................................................................33
#locate id=address ........................................................................................... 34
#byte id=x #word id=x ...................................................................................34
#bit id=x.y .......................................................................................................35
#reserve address ...............................................................................................35
Bootloaders ......................................................................................................35
#rom address={data} ......................................................................................35
#id data ............................................................................................................. 36
Other Pragmas .................................................................................................. 36
Summary ............................................................................................................ 37
Quiz .................................................................................................................... 39
Chapter 4: Data Variables and Types �������������������������������������������������������������������43
Data Types .......................................................................................................... 43
Characters ........................................................................................................43
Integers ............................................................................................................. 44
Compatibility Note...........................................................................................44
Integer Format .................................................................................................. 45
Enumerated Types ............................................................................................45
Fixed Point .......................................................................................................46
Floating Point ................................................................................................... 46
Interpretation Help ...........................................................................................46
Floating-Point Format ......................................................................................47
Void ..................................................................................................................47
typedef ..............................................................................................................48
