Specifications

CAVR-4
Contents
vii
The return address stack .................................................................... 43
The heap ............................................................................................ 44
Located data ....................................................................................... 46
User-defined data segments ............................................................... 46
Code segments ....................................................................................... 46
Interrupt and reset vectors ................................................................. 46
Functions ............................................................................................ 46
User-defined segments ....................................................................... 47
Compiler-generated segments ......................................................... 47
Efficient usage of segments and memory .................................... 47
Controlling data and function placement ........................................... 47
Using user-defined segments ............................................................. 49
Verifying the linked result of code and data placement ........ 50
Segment too long errors and range errors .......................................... 50
Linker map file ................................................................................... 50
Managing multiple memory spaces ................................................... 51
The DLIB runtime environment ............................................................... 53
Introduction to the runtime environment .................................. 53
Runtime environment functionality ................................................... 53
Library selection ................................................................................ 54
Situations that require library building .............................................. 55
Library configurations ........................................................................ 55
Debug support in the runtime library ................................................. 56
Using a prebuilt library ........................................................................ 56
Customizing a prebuilt library without rebuilding ............................. 58
Choosing formatters for printf and scanf ..................................... 59
Choosing printf formatter ................................................................... 59
Choosing scanf formatter .................................................................. 60
Overriding library modules ................................................................ 61
Building and using a customized library ....................................... 62
Setting up a library project ................................................................. 63
Modifying the library functionality .................................................... 63
Using a customized library ................................................................ 63