MSP430 IAR C/C++ Compiler reference guide - Rice University

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memory segment. See segmentmemory types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15C++ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20placing variables in . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20pointers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18specifying . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16structures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17memory (pragma directive). . . . . . . . . . . . . . . . . . . . . . . . 257memory (STL header file). . . . . . . . . . . . . . . . . . . . . . . . . 235message (pragma directive). . . . . . . . . . . . . . . . . . . . . . . . 207messagesdisabling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 166forcing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 207--migration_preprocessor_extensions (compiler option). . 155MISRA C ruleschecking for adherence to . . . . . . . . . . . . . . . . . . . . . . 155logging. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 156--misrac (compiler option) . . . . . . . . . . . . . . . . . . . . . . . . 155--misrac_verbose (compiler option) . . . . . . . . . . . . . . . . . 156module consistency. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71rtmodel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 212module map, in linker map file . . . . . . . . . . . . . . . . . . . . . . 43module name, specifying . . . . . . . . . . . . . . . . . . . . . . . . . 156module summary, in linker map file . . . . . . . . . . . . . . . . . . 43--module_name (compiler option) . . . . . . . . . . . . . . . . . . 156module_name (pragma directive) . . . . . . . . . . . . . . . . . . . 257__monitor (extended keyword) . . . . . . . . . . . . . . . . . 127, 195monitor functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26, 195MSP430 and MSP430Xarchitecture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6memory access. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7memory layout. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13multibyte character support. . . . . . . . . . . . . . . . . . . . . . . . 151multiple inheritance, missing from Embedded C++ . . . . . 101mutable attribute, in Extended EC++ . . . . . . . . . . . . 102, 111Nnames block (call frame information) . . . . . . . . . . . . . . . . . 98namespace supportin Extended EC++ . . . . . . . . . . . . . . . . . . . . . . . . 102, 111missing from Embedded C++ . . . . . . . . . . . . . . . . . . . 102NAN, C99 extension. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 237NDEBUG (preprocessor symbol) . . . . . . . . . . . . . . . . . . . 228new operator (extended EC++) . . . . . . . . . . . . . . . . . . . . . 106new (keyword) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22new (library header file) . . . . . . . . . . . . . . . . . . . . . . . . . . 234new.h (library header file) . . . . . . . . . . . . . . . . . . . . . . . . . 235none (pragma directive) . . . . . . . . . . . . . . . . . . . . . . . . . . 257non-initialized variables, hints for. . . . . . . . . . . . . . . . . . . 128non-scalar parameters, avoiding . . . . . . . . . . . . . . . . . . . . 125NOP (assembler instruction). . . . . . . . . . . . . . . . . . . . . . . 223__noreturn (extended keyword) . . . . . . . . . . . . . . . . . . . . 196Normal DLIB (library configuration) . . . . . . . . . . . . . . . . . 47Not a number (NaN) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 173NOTREACHED (pragma directive) . . . . . . . . . . . . . . . . . 257--no_code_motion (compiler option) . . . . . . . . . . . . . . . . 157--no_cse (compiler option) . . . . . . . . . . . . . . . . . . . . . . . . 157no_epilogue (pragma directive) . . . . . . . . . . . . . . . . . . . . 208__no_init (extended keyword) . . . . . . . . . . . . . . . . . 128, 196--no_inline (compiler option) . . . . . . . . . . . . . . . . . . . . . . 157__no_operation (intrinsic function). . . . . . . . . . . . . . . . . . 223--no_path_in_file_macros (compiler option). . . . . . . . . . . 158no_pch (pragma directive) . . . . . . . . . . . . . . . . . . . . . . . . 257--no_typedefs_in_diagnostics (compiler option). . . . . . . . 158--no_unroll (compiler option) . . . . . . . . . . . . . . . . . . . . . . 159--no_warnings (compiler option) . . . . . . . . . . . . . . . . . . . 159--no_wrap_diagnostics (compiler option) . . . . . . . . . . . . . 160NULL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 239NULL (macro), implementation-defined behavior . . 258, 261numeric (STL header file). . . . . . . . . . . . . . . . . . . . . . . . . 235O-O (compiler option) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 160276MSP430 IAR C/C++ CompilerReference Guide
Index-o (compiler option) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 161object attributes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 191object filename, specifying . . . . . . . . . . . . . . . . . . . . 161–162object module name, specifying . . . . . . . . . . . . . . . . . . . . 156object_attribute (pragma directive) . . . . . . . . . . . . . . 128, 208offsetof . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 239--omit_types (compiler option) . . . . . . . . . . . . . . . . . . . . . 161once (pragma directive) . . . . . . . . . . . . . . . . . . . . . . . . . . 258--only_stdout (compiler option) . . . . . . . . . . . . . . . . . . . . 161__open (library function) . . . . . . . . . . . . . . . . . . . . . . . . . . 63operators@ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117, 181__memory_of. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105optimizationcode motion, disabling. . . . . . . . . . . . . . . . . . . . . . . . . 157common sub-expression elimination, disabling . . . . . . 157configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8disabling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122function inlining, disabling . . . . . . . . . . . . . . . . . . . . . 157hints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124loop unrolling, disabling . . . . . . . . . . . . . . . . . . . . . . . 159specifying (-O). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 160summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121techniques . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122type-based alias analysis (compiler transformation). . . 123disabling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 158using inline assembler code . . . . . . . . . . . . . . . . . . . . . . 85using pragma directive . . . . . . . . . . . . . . . . . . . . . . . . . 208optimization levels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121optimize (pragma directive) . . . . . . . . . . . . . . . . . . . . . . . 208option parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139options, compiler. See compiler options__op_code (intrinsic function) . . . . . . . . . . . . . . . . . . . . . 223Oram, Andy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxivostream (library header file) . . . . . . . . . . . . . . . . . . . . . . . 234--output (compiler option). . . . . . . . . . . . . . . . . . . . . . . . . 162output from linker, specifying. . . . . . . . . . . . . . . . . . . . . . . . 5output (preprocessor) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 163output, supporting non-standard . . . . . . . . . . . . . . . . . . . . . 78overhead, reducing . . . . . . . . . . . . . . . . . . . . . . . . . . 122–123Ppack (pragma directive) . . . . . . . . . . . . . . . . . . . . . . 176, 209packed structure types. . . . . . . . . . . . . . . . . . . . . . . . . . . . 176parametersfunction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92hidden . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92non-scalar, avoiding . . . . . . . . . . . . . . . . . . . . . . . . . . . 125register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92–93rules for specifying a file or directory . . . . . . . . . . . . . 140specifying . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141stack. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92, 94typographic convention . . . . . . . . . . . . . . . . . . . . . . . xxivpart number, of this guide . . . . . . . . . . . . . . . . . . . . . . . . . . .iipermanent registers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92perror (library function),implementation-defined behavior . . . . . . . . . . . . . . . 260, 263--pic (compiler option) . . . . . . . . . . . . . . . . . . . . . . . . . . . 162placementcode and data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 241in named segments. . . . . . . . . . . . . . . . . . . . . . . . . . . . 119pointer typesdifferences between . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18mixing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 186pointerscasting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18, 174data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 174function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 173implementation-defined behavior. . . . . . . . . . . . . . . . . 255polymorphism, in Embedded C++ . . . . . . . . . . . . . . . . . . 101porting, code containing pragma directives. . . . . . . . . . . . 200position independent code. . . . . . . . . . . . . . . . . . . . . . . . . . . 7__POSITION_INDEPENDENT_CODE__ (predefinedsymbol). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 227_Pragma (predefined symbol) . . . . . . . . . . . . . . . . . . . . . . 229pragma directives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 199277
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MSP430 IAR C/C++ CompilerReference
Page 3 and 4:
Brief contentsTables ..............
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ContentsTables ....................
Page 8 and 9:
Standard streams for input and outp
Page 10 and 11:
Functions .........................
Page 12 and 13:
-e ................................
Page 14 and 15:
C language extensions .............
Page 16 and 17:
__enable_interrupt ................
Page 18 and 19:
Implementation-defined behavior ...
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32: Data pointers .................
Page 22:
What this guide containsWhat this g
Page 25 and 26:
PrefaceStyle[option]{option}a|b|cbo
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Part 1. Using the compilerThis part
Page 30 and 31:
Supported MSP430 devicesIt is also
Page 32 and 33:
Basic settings for project configur
Page 34 and 35:
Basic settings for project configur
Page 36 and 37:
Special support for embedded system
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Special support for embedded system
Page 40 and 41:
Data models (MSP430X only)●means
Page 42 and 43:
Memory types (MSP430X only)The MSP4
Page 44 and 45:
Memory types (MSP430X only)Type def
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C++ and memory types (MSP430X only)
Page 48 and 49:
Dynamic memory on the heapAnother p
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Primitives for interrupts, concurre
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Placing segments in memoryfrom the
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Placing segments in memorySee the I
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Data segmentsexample DATA16 and __d
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Data segmentsThe data segment used
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Data segmentsAdd the required heap
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C++ dynamic initializationINTERRUPT
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Verifying the linked result of code
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Introduction to the runtime environ
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Using a prebuilt libraryThe followi
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Using a prebuilt library● is one
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Choosing formatters for printf and
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Overriding library modulesNote: If
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System startup and terminationThe l
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System startup and termination●
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Standard streams for input and outp
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Configuration symbols for printf an
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LocaleNote: If you link your librar
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Environment interactiondescribes th
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StrtodStrtodThe function strtod doe
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C-SPY Debugger runtime interface* T
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Checking module consistencyObject f
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Checking module consistencyIf this
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Runtime environment● Position-ind
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Input and output_medium_writeThe _m
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Overriding default library modules
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Checking module consistency82MSP430
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Mixing C and assemblerAn intrinsic
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Calling assembler routines from CIn
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Calling assembler routines from C++
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Calling conventionCHOOSING A CALLIN
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Calling conventionPreserved registe
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Calling conventionStack parameters
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Calling conventionExample 2This exa
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Call frame informationA full descri
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Call frame information100MSP430 IAR
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Overview●●●Runtime type infor
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Feature descriptionsalso apply to o
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Feature descriptionsA new expressio
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Feature descriptionsTemplates and d
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Feature descriptionsExamplevector d
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C++ language extensions●Constants
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Selecting data types● Declaring a
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Controlling data and function place
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Controlling data and function place
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Controlling compiler optimizationsT
Page 148 and 149:
Controlling compiler optimizationss
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Writing efficient code}*p2 = 0;*p1
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Writing efficient codeint test(); /
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Writing efficient codeWDTCNTCL = 0x
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Writing efficient code130MSP430 IAR
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132
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Include file search procedure●Via
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Diagnostics●●●Diagnostic mess
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DiagnosticsFatal errorA diagnostic
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Options syntaxFor options with a lo
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Compiler options summaryCompiler op
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Descriptions of optionsCommand line
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Descriptions of optionsDescriptionF
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Descriptions of options--diag_remar
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Descriptions of optionsTo set relat
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Descriptions of options--error_limi
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Descriptions of optionsFor informat
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Descriptions of optionsdocumentatio
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Descriptions of optionsNote: This o
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Descriptions of optionsThis option
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Descriptions of options--output, -o
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Descriptions of options--reduce_sta
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Descriptions of options--silentSynt
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Descriptions of options168MSP430 IA
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Basic data typesThe MSP430 IAR C/C+
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Basic data typesFLOATING-POINT TYPE
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Pointer typesDATA POINTERSThe follo
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Type qualifiersThe following diagra
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Data types in C++constant and non-c
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C language extensionsinstructions.
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C language extensionsIn the followi
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C language extensions{char a;unsign
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C language extensionsMINOR LANGUAGE
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C language extensionsint test(int x
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General syntax rules for extended k
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Summary of extended keywordsThe fol
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Descriptions of extended keywordsSe
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Descriptions of extended keywords__
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Descriptions of extended keywordsTh
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Descriptions of pragma directivesPr
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Descriptions of pragma directivesco
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Descriptions of pragma directivesdi
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Descriptions of pragma directivesin
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Descriptions of pragma directivesno
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Descriptions of pragma directivesna
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Descriptions of pragma directivesEx
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Descriptions of pragma directivesEx
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Descriptions of intrinsic functions
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Page 246 and 247:
Page 248 and 249:
Page 250 and 251:
Page 252 and 253: Descriptions of predefined preproce
Page 254 and 255: Descriptions of miscellaneous prepr
Page 256 and 257: Descriptions of miscellaneous prepr
Page 258 and 259: IntroductionLIBRARY OBJECT FILESMos
Page 260 and 261: IAR DLIB LibraryHeader filestdbool.
Page 262 and 263: IAR DLIB LibraryThe following table
Page 264 and 265: IAR CLIB Librarystdio.hIn stdio.h,
Page 266 and 267: IAR CLIB Library240MSP430 IAR C/C++
Page 268 and 269: Descriptions of segmentsSegmentDATA
Page 270 and 271: Descriptions of segmentsDATA16_CDes
Page 272 and 273: Descriptions of segmentsDATA20_ACDe
Page 274 and 275: Descriptions of segmentsDATA20_ZDes
Page 276 and 277: Descriptions of segments250MSP430 I
Page 278 and 279: Descriptions of implementation-defi
Page 292 and 293: inary streams (CLIB) . . . . . . .
Page 294 and 295: CSTACK (segment)example . . . . . .
Page 296 and 297: --double (compiler option) . . . .
Page 298 and 299: eentrancy (DLIB) . . . . . . . . .
Page 300 and 301: ISO/ANSI Ccompiler extensions . . .
Page 304 and 305: asic_template_matching, using . . .
Page 306 and 307: S--save_reg20 (compiler option). .
Page 308 and 309: strtod, in stdlib.h . . . . . . . .
Page 310 and 311: wchar.h (library header file) . . .
Page 312: __no_operation (intrinsic function)
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MSP430 IAR C/C++ Compiler reference guide - Rice University

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