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

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Document conventionsFURTHER READINGThe following books may be of interest to you when using the IAR Systemsdevelopment tools:●●●●●●●MSP430xxxx User’s Guide provided by Texas InstrumentsBarr, Michael, and Andy Oram, ed. Programming Embedded Systems in C andC++. O’Reilly & Associates.Harbison, Samuel P. and Guy L. Steele (contributor). C: A Reference Manual.Prentice Hall.Kernighan, Brian W. and Dennis M. Ritchie. The C Programming Language.Prentice Hall. [The later editions describe the ANSI C standard.]Labrosse, Jean J. Embedded Systems Building Blocks: Complete and Ready-To-UseModules in C. R&D Books.Lippman, Stanley B. and Josée Lajoie. C++ Primer. Addison-Wesley.Mann, Bernhard. C für Mikrocontroller. Franzis-Verlag. [Written in German.]● Stroustrup, Bjarne. The C++ Programming Language. Addison-Wesley.We recommend that you visit the following web sites:● The Texas Instruments web site, www.ti.com, contains information and news aboutthe MSP430 microcontrollers.● The IAR Systems web site, www.iar.com, holds application notes and otherproduct information.● Finally, the Embedded C++ Technical Committee web site,www.caravan.net/ec2plus, contains information about the Embedded C++standard.Document conventionsWhen, in this text, we refer to the programming language C, the text also applies to C++,unless otherwise stated.TYPOGRAPHIC CONVENTIONSThis guide uses the following typographic conventions:StylecomputerparameterUsed forTable 1: Typographic conventions used in this guideText that you enter or that appears on the screen.A label representing the actual value you should enter as part of acommand.xxivMSP430 IAR C/C++ CompilerReference Guide
PrefaceStyle[option]{option}a|b|cboldreference…Used forAn optional part of a command.A mandatory part of a command.Alternatives in a command.Names of menus, menu commands, buttons, and dialog boxes thatappear on the screen.A cross-reference within this guide or to another guide.An ellipsis indicates that the previous item can be repeated an arbitrarynumber of times.Identifies instructions specific to the IAR Embedded Workbenchinterface.Identifies instructions specific to the command line interface.Identifies helpful tips and programming hints.Table 1: Typographic conventions used in this guide (Continued)xxv
Page 1 and 2: MSP430 IAR C/C++ CompilerReference
Page 3 and 4: Brief contentsTables ..............
Page 5: 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 ...
Page 20 and 21: 32: Data pointers .................
Page 22: What this guide containsWhat this g
Page 27: 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
Page 38 and 39: 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
Page 46 and 47: C++ and memory types (MSP430X only)
Page 48 and 49: Dynamic memory on the heapAnother p
Page 50 and 51: Primitives for interrupts, concurre
Page 58 and 59: Placing segments in memoryfrom the
Page 60 and 61: Placing segments in memorySee the I
Page 62 and 63: Data segmentsexample DATA16 and __d
Page 64 and 65: Data segmentsThe data segment used
Page 66 and 67: Data segmentsAdd the required heap
Page 68 and 69: C++ dynamic initializationINTERRUPT
Page 70 and 71: Verifying the linked result of code
Page 72 and 73: 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
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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
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Descriptions of intrinsic functions
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Descriptions of predefined preproce
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Descriptions of miscellaneous prepr
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Descriptions of miscellaneous prepr
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IntroductionLIBRARY OBJECT FILESMos
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IAR DLIB LibraryHeader filestdbool.
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IAR DLIB LibraryThe following table
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IAR CLIB Librarystdio.hIn stdio.h,
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IAR CLIB Library240MSP430 IAR C/C++
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Descriptions of segmentsSegmentDATA
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Descriptions of segmentsDATA16_CDes
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Descriptions of segmentsDATA20_ACDe
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Descriptions of segmentsDATA20_ZDes
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Descriptions of segments250MSP430 I
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Descriptions of implementation-defi
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inary streams (CLIB) . . . . . . .
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CSTACK (segment)example . . . . . .
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--double (compiler option) . . . .
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eentrancy (DLIB) . . . . . . . . .
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ISO/ANSI Ccompiler extensions . . .
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memory segment. See segmentmemory t
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asic_template_matching, using . . .
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S--save_reg20 (compiler option). .
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strtod, in stdlib.h . . . . . . . .
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wchar.h (library header file) . . .
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__no_operation (intrinsic function)
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MSP430 IAR C/C++ Compiler reference guide - Rice University

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