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

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inary streams (CLIB) . . . . . . . . . . . . . . . . . . . . . . . . . . . 262binary streams (DLIB) . . . . . . . . . . . . . . . . . . . . . . . . . . . 259bis_nmi_ie1 (pragma directive) . . . . . . . . . . . . . . . . . . . . 201__bis_SR_register (intrinsic function) . . . . . . . . . . . . . . . 218__bis_SR_register_on_exit (intrinsic function). . . . . . . . . 218bit negation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126bitfieldsdata representation of. . . . . . . . . . . . . . . . . . . . . . . . . . 171hints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113implementation-defined behavior of . . . . . . . . . . . . . . 255non-standard types in . . . . . . . . . . . . . . . . . . . . . . . . . . 181specifying order of members (#pragma bitfields). . . . . 201bitfields (pragma directive) . . . . . . . . . . . . . . . . . . . . . . . . 201bold style, in this guide . . . . . . . . . . . . . . . . . . . . . . . . . . . xxvbool (data type). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 170adding support for in CLIB . . . . . . . . . . . . . . . . . . . . . 239adding support for in DLIB . . . . . . . . . . . . . . . . . 234, 236making available in C code . . . . . . . . . . . . . . . . . . . . . 237bubble sort function, defined in stdlib.h . . . . . . . . . . . . . . 238__BUILD_NUMBER__ (predefined symbol) . . . . . . . . . 226CC and C++ linkage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91C/C++ calling convention. See calling conventionsC header files . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 233call frame information . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97in assembler list file . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87in assembler list file (-lA) . . . . . . . . . . . . . . . . . . . . . . 153call stack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97callee-save registers, stored on stack. . . . . . . . . . . . . . . . . . 21calling conventionC++, requiring C linkage . . . . . . . . . . . . . . . . . . . . . . . . 88in compiler. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89overriding default (__cc_version1) . . . . . . . . . . . . . . . 193overriding default (__cc_version2) . . . . . . . . . . . . . . . 193calloc (library function) . . . . . . . . . . . . . . . . . . . . . . . . . . . 22See also heapimplementation-defined behavior of (CLIB) . . . . . . . . 263implementation-defined behavior of (DLIB) . . . . . . . . 260can_instantiate (pragma directive) . . . . . . . . . . . . . . . . . . 257cassert (DLIB header file). . . . . . . . . . . . . . . . . . . . . . . . . 236cast operatorsin Extended EC++ . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102missing from Embedded C++ . . . . . . . . . . . . . . . . . . . 102castingbetween pointer types . . . . . . . . . . . . . . . . . . . . . . . . . . 18of pointers and integers . . . . . . . . . . . . . . . . . . . . . . . . 174cctype (DLIB header file) . . . . . . . . . . . . . . . . . . . . . . . . . 236__cc_version1 (extended keyword). . . . . . . . . . . . . . . . . . 193__cc_version2 (extended keyword). . . . . . . . . . . . . . . . . . 193cerrno (DLIB header file) . . . . . . . . . . . . . . . . . . . . . . . . . 236cexit (system termination code), placing in segment. . . . . . 41CFI (assembler directive) . . . . . . . . . . . . . . . . . . . . . . . . . . 97cfloat (DLIB header file). . . . . . . . . . . . . . . . . . . . . . . . . . 236char (data type) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 170changing default representation (--char_is_signed) . . . 144signed and unsigned. . . . . . . . . . . . . . . . . . . . . . . . . . . 171characters, implementation-defined behavior of . . . . . . . . 252character-based I/Oin CLIB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77in DLIB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60overriding in runtime library . . . . . . . . . . . . . . . . . . . . . 53--char_is_signed (compiler option) . . . . . . . . . . . . . . . . . . 144cinttypes (DLIB header file) . . . . . . . . . . . . . . . . . . . . . . . 236class memory (extended EC++) . . . . . . . . . . . . . . . . . . . . 104class template partial specializationmatching (extended EC++) . . . . . . . . . . . . . . . . . . . . . . . . 108classes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103CLIB. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8, 238reference information, in the online help system . . . . xxiiisummary of definitions . . . . . . . . . . . . . . . . . . . . . . . . 239climits (DLIB header file). . . . . . . . . . . . . . . . . . . . . . . . . 236clocale (DLIB header file) . . . . . . . . . . . . . . . . . . . . . . . . 236clock (CLIB library function),implementation-defined behavior of . . . . . . . . . . . . . . . . . 264clock (DLIB library function),implementation-defined behavior of . . . . . . . . . . . . . . . . . 261clock.c . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67266MSP430 IAR C/C++ CompilerReference Guide
Index__close (DLIB library function) . . . . . . . . . . . . . . . . . . . . . 63cmath (DLIB header file) . . . . . . . . . . . . . . . . . . . . . . . . . 236codeinterruption of execution . . . . . . . . . . . . . . . . . . . . . . . . 23verifying linked result . . . . . . . . . . . . . . . . . . . . . . . . . . 42code motion (compiler transformation). . . . . . . . . . . . . . . 123disabling (--no_code_motion) . . . . . . . . . . . . . . . . . . . 157code segments, used for placement . . . . . . . . . . . . . . . . . . . 41CODE (segment) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 242using . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41codeseg (pragma directive) . . . . . . . . . . . . . . . . . . . . . . . . 257command line optionspart of invocation syntax . . . . . . . . . . . . . . . . . . . . . . . 133passing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133See also compiler optionscommand prompt icon, in this guide. . . . . . . . . . . . . . . . . xxvcommentsafter preprocessor directives. . . . . . . . . . . . . . . . . . . . . 187C++ style, using in C code. . . . . . . . . . . . . . . . . . . . . . 182common block (call frame information) . . . . . . . . . . . . . . . 98common subexpr elimination (compiler transformation) .122disabling (--no_cse) . . . . . . . . . . . . . . . . . . . . . . . . . . . 157compilation dateexact time of (__TIME__) . . . . . . . . . . . . . . . . . . . . . . 228identifying (__DATE__) . . . . . . . . . . . . . . . . . . . . . . . 226compilerenvironment variables . . . . . . . . . . . . . . . . . . . . . . . . . 134invocation syntax . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133output from . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135compiler listing, generating (-l). . . . . . . . . . . . . . . . . . . . . 153compiler object fileincluding debug information in (--debug, -r) . . . . . . . . 146specifying filename of (-o). . . . . . . . . . . . . . . . . . 161–162compiler optimization levels . . . . . . . . . . . . . . . . . . . . . . . 121compiler options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139passing to compiler . . . . . . . . . . . . . . . . . . . . . . . . . . . 133reading from file (-f) . . . . . . . . . . . . . . . . . . . . . . . . . . 152setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139specifying parameters . . . . . . . . . . . . . . . . . . . . . . . . . 141summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 142syntax. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139typographic convention . . . . . . . . . . . . . . . . . . . . . . . . xxv-l . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87--warnings_affect_exit_code . . . . . . . . . . . . . . . . . . . . 136compiler platform, identifying . . . . . . . . . . . . . . . . . . . . . 227compiler subversion number . . . . . . . . . . . . . . . . . . . . . . . 228compiler transformations . . . . . . . . . . . . . . . . . . . . . . . . . 120compiler version number . . . . . . . . . . . . . . . . . . . . . . . . . 228compilingfrom the command line . . . . . . . . . . . . . . . . . . . . . . . . . . 4syntax. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133complex numbers, supported in Embedded C++. . . . . . . . 102complex (library header file). . . . . . . . . . . . . . . . . . . . . . . 234compound literals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 183computer style, typographic convention . . . . . . . . . . . . . xxivconfigurationbasic project settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5__low_level_init . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59configuration symbols, in library configuration files. . . . . . 55consistency, module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71constants, placing in named segment . . . . . . . . . . . . . . . . 202constseg (pragma directive) . . . . . . . . . . . . . . . . . . . . . . . 202const, declaring objects. . . . . . . . . . . . . . . . . . . . . . . . . . . 177const_cast (cast operator) . . . . . . . . . . . . . . . . . . . . . . . . . 102contents, of this guide . . . . . . . . . . . . . . . . . . . . . . . . . . . .xxiiconventions, typographic . . . . . . . . . . . . . . . . . . . . . . . . xxivcopyright notice . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .ii__CORE__ (predefined symbol). . . . . . . . . . . . . . . . . . . . 226coreidentifying . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 226specifying on command line . . . . . . . . . . . . . . . . . . . . 144--core (compiler option) . . . . . . . . . . . . . . . . . . . . . . . . . . 144__core (runtime model attribute). . . . . . . . . . . . . . . . . . . . . 72__cplusplus (predefined symbol) . . . . . . . . . . . . . . . . . . . 226csetjmp (DLIB header file) . . . . . . . . . . . . . . . . . . . . . . . . 236csignal (DLIB header file) . . . . . . . . . . . . . . . . . . . . . . . . 236cspy_support (pragma directive) . . . . . . . . . . . . . . . . . . . . 257267
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MSP430 IAR C/C++ CompilerReference
Page 3 and 4:
Brief contentsTables ..............
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ContentsTables ....................
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Standard streams for input and outp
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Functions .........................
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-e ................................
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C language extensions .............
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__enable_interrupt ................
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Implementation-defined behavior ...
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32: Data pointers .................
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What this guide containsWhat this g
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PrefaceStyle[option]{option}a|b|cbo
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Part 1. Using the compilerThis part
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Supported MSP430 devicesIt is also
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Basic settings for project configur
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Basic settings for project configur
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Special support for embedded system
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Special support for embedded system
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Data models (MSP430X only)●means
Page 42 and 43:
Memory types (MSP430X only)The MSP4
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Memory types (MSP430X only)Type def
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C++ and memory types (MSP430X only)
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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
Page 114 and 115:
Calling assembler routines from C++
Page 116 and 117:
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
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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
Page 242 and 243: Descriptions of intrinsic functions
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 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 302 and 303: memory segment. See segmentmemory t
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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