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MPLAB ? C32 C Compiler User’s Guide
5.8.4.16
.LIT8 SECTION
This section collects the 8-byte constants (usually floating-point) which the assembler
decides to store in memory rather than in the instruction stream from all of the
application's input files. This section is assigned to the data memory region
( kseg1_data_mem ) with a load address located in the program memory region
( kseg0_program_mem ).
.lit8 :
{
*(.lit8)
} > kseg1_data_mem AT> kseg0_program_mem
5.8.4.17
.LIT4 SECTION
This section collects the 4-byte constants (usually floating-point) which the assembler
decides to store in memory rather than in the instruction stream from all of the
application's input files. This section is assigned to the data memory region
( kseg1_data_mem ) with a load address located in the program memory region
( kseg0_program_mem ). A symbol is defined to represent the virtual end address of
the initialized data ( _data_end ).
.lit4 :
{
*(.lit4)
} > kseg1_data_mem AT> kseg0_program_mem
_data_end = . ;
5.8.4.18
.SBSS SECTION
This section collects the small uninitialized data from all of the application's input files.
This section is assigned to the data memory region ( kseg1_data_mem ). A symbol is
defined to represent the virtual begin address of uninitialized data ( _bss_begin ).
Symbols are also defined to represent the virtual begin ( _sbss_begin ) and end
( _sbss_end ) addresses of this section.
_bss_begin = . ;
.sbss :
{
_sbss_begin = . ;
*(.dynsbss)
*(.sbss .sbss.* .gnu.linkonce.sb.*)
*(.scommon)
_sbss_end = . ;
} > kseg1_data_mem
5.8.4.19
.BSS SECTION
This section collects the uninitialized data from all of the application's input files. This
section is assigned to the data memory region ( kseg1_data_mem ). A symbol is
defined to represent the virtual end address of uninitialized data ( _bss_end ). A symbol
is also defined to represent the virtual end address of data memory ( _end ).
.bss :
{
*(.dynbss)
*(.bss .bss.* .gnu.linkonce.b.*)
*(COMMON)
/*
* Align here to ensure that the .bss section occupies
* space up to _end. Align after .bss to ensure correct
* alignment even if the .bss section disappears because
* there are no input sections.
DS51686A-page 82
? 2007 Microchip Technology Inc.
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相关PDF资料
SW300003-EVAL
LIBRARY SOFT MODEM-EVAL ONLY
SW300010-EVAL
SPEECH RECOG LIBRARY-EVAL ONLY
SW300040-EVAL
LIBRARY NOISE SUPPR-EVAL ONLY
SW300060-EVAL
LIBRARY ACOUSTIC ECHO-EVAL ONLY
SW300070-EVAL
SOFTWARE LIBR ENC/DEC EVAL ONLY
SW500012
HI-TECH C PRO FOR PIC32
SY87701LHI-EVAL
BOARD EVAL SY87701 EXPERIMENT
SY87729LHI-EVAL
BOARD EVAL N SY87729 EXPERIMENT
相关代理商/技术参数
SW006021-1
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