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

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CSTACK (segment)example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38See also stackCSTART (segment). . . . . . . . . . . . . . . . . . . . . . . . . . . 41, 243cstartup (system startup code). . . . . . . . . . . . . . . . . . . . 41, 79customizing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60overriding in runtime library . . . . . . . . . . . . . . . . . . . . . 53cstartup.s43. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56cstdarg (DLIB header file) . . . . . . . . . . . . . . . . . . . . . . . . 236cstdbool (DLIB header file) . . . . . . . . . . . . . . . . . . . . . . . 236cstddef (DLIB header file) . . . . . . . . . . . . . . . . . . . . . . . . 236cstdio (DLIB header file) . . . . . . . . . . . . . . . . . . . . . . . . . 236cstdlib (DLIB header file) . . . . . . . . . . . . . . . . . . . . . . . . . 236cstring (DLIB header file). . . . . . . . . . . . . . . . . . . . . . . . . 236ctime (DLIB header file). . . . . . . . . . . . . . . . . . . . . . . . . . 236ctype.h (library header file). . . . . . . . . . . . . . . . . . . . 233, 239added C functionality. . . . . . . . . . . . . . . . . . . . . . . . . . 237cwctype.h (library header file) . . . . . . . . . . . . . . . . . . . . . 236C++See also Embedded C++ and Extended Embedded C++absolute location . . . . . . . . . . . . . . . . . . . . . . . . . 117, 119calling convention . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88dynamic initialization in . . . . . . . . . . . . . . . . . . . . . . . . 42features excluded from EC++ . . . . . . . . . . . . . . . . . . . 101header files. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 234–235language extensions . . . . . . . . . . . . . . . . . . . . . . . . . . . 111special function types. . . . . . . . . . . . . . . . . . . . . . . . . . . 28static member variables . . . . . . . . . . . . . . . . . . . . 117, 119support for . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3terminology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxivC++ names, in assembler code . . . . . . . . . . . . . . . . . . . . . . 89C++ objects, placing in memory type . . . . . . . . . . . . . . . . . 20C++-style comments. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 182C-SPYlow-level interface . . . . . . . . . . . . . . . . . . . . . . . . . . 69, 80STL container support . . . . . . . . . . . . . . . . . . . . . . . . . 110?C_EXIT (assembler label). . . . . . . . . . . . . . . . . . . . . . . . . 81?C_GETCHAR (assembler label) . . . . . . . . . . . . . . . . . . . . 81C_INCLUDE (environment variable) . . . . . . . . . . . . . . . . 134?C_PUTCHAR (assembler label) . . . . . . . . . . . . . . . . . . . . 81C99 standard, added functionality from . . . . . . . . . . . . . . 236D--data_model (compiler option) . . . . . . . . . . . . . . . . . . . . 145dataalignment of. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 169located, declaring extern . . . . . . . . . . . . . . . . . . . . . . . 118placing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116, 203, 241at absolute location . . . . . . . . . . . . . . . . . . . . . . . . . 117representation of . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 169storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13verifying linked result . . . . . . . . . . . . . . . . . . . . . . . . . . 42data block (call frame information). . . . . . . . . . . . . . . . . . . 98data memory attributes, using . . . . . . . . . . . . . . . . . . . . . . . 16data models. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7identifying (__DATA_MODEL__) . . . . . . . . . . . . . . . 226data pointers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 174data segments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35data types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 170avoiding signed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113floating point . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 172in C++ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 178integers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 170dataseg (pragma directive) . . . . . . . . . . . . . . . . . . . . . . . . 203data_alignment (pragma directive)alignmentforcing stricter (#pragma data_alignment) . . . . . . . . . . 202__DATA_MODEL__ (predefined symbol) . . . . . . . . . . . . 226__data_model (runtime model attribute) . . . . . . . . . . . . . . . 72__data16 (extended keyword) . . . . . . . . . . . . . . . . . . . . . . 194data16 (memory type). . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16DATA16_AC (segment) . . . . . . . . . . . . . . . . . . . . . . . . . . 243DATA16_AN (segment) . . . . . . . . . . . . . . . . . . . . . . . . . . 243DATA16_C (segment). . . . . . . . . . . . . . . . . . . . . . . . . . . . 244DATA16_HEAP (segment) . . . . . . . . . . . . . . . . . . . . . . . . 244DATA16_I (segment) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 244DATA16_ID (segment) . . . . . . . . . . . . . . . . . . . . . . . . . . . 245268MSP430 IAR C/C++ CompilerReference Guide
IndexDATA16_N (segment). . . . . . . . . . . . . . . . . . . . . . . . . . . . 245__data16_read_addr (intrinsic function) . . . . . . . . . . . . . . 218DATA16_Z (segment). . . . . . . . . . . . . . . . . . . . . . . . . . . . 245__data20 (extended keyword) . . . . . . . . . . . . . . . . . . . . . . 194data20 (memory type). . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16DATA20_AC (segment) . . . . . . . . . . . . . . . . . . . . . . . . . . 246DATA20_AN (segment) . . . . . . . . . . . . . . . . . . . . . . . . . . 246DATA20_C (segment). . . . . . . . . . . . . . . . . . . . . . . . . . . . 246DATA20_HEAP (segment) . . . . . . . . . . . . . . . . . . . . . . . . 246DATA20_I (segment) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 247DATA20_ID (segment) . . . . . . . . . . . . . . . . . . . . . . . . . . . 247DATA20_N (segment). . . . . . . . . . . . . . . . . . . . . . . . . . . . 247__data20_read_char (intrinsic function) . . . . . . . . . . . . . . 219__data20_read_long (intrinsic function) . . . . . . . . . . . . . . 219__data20_read_short (intrinsic function) . . . . . . . . . . . . . 219__data20_write_char (intrinsic function) . . . . . . . . . . . . . 220__data20_write_long (intrinsic function) . . . . . . . . . . . . . 220__data20_write_short (intrinsic function) . . . . . . . . . . . . . 220DATA20_Z (segment). . . . . . . . . . . . . . . . . . . . . . . . . . . . 248__DATE__ (predefined symbol) . . . . . . . . . . . . . . . . . . . . 226date (library function), configuring support for. . . . . . . . . . 67--debug (compiler option) . . . . . . . . . . . . . . . . . . . . . . . . . 146debug information, including in object file . . . . . . . . 146, 163declarationsempty. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 187in for loops. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 182Kernighan & Ritchie . . . . . . . . . . . . . . . . . . . . . . . . . . 125of functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90declarations and statements, mixing . . . . . . . . . . . . . . . . . 182declarators, implementation-defined behavior . . . . . . . . . 256define_type_info (pragma directive) . . . . . . . . . . . . . . . . . 257__delay_cycles (intrinsic function) . . . . . . . . . . . . . . . . . . 220delete operator (extended EC++) . . . . . . . . . . . . . . . . . . . 106delete (keyword) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22--dependencies (compiler option) . . . . . . . . . . . . . . . . . . . 146deque (STL header file) . . . . . . . . . . . . . . . . . . . . . . . . . . 235destructors and interrupts, using . . . . . . . . . . . . . . . . . . . . 111DI (assembler instruction). . . . . . . . . . . . . . . . . . . . . . . . . 220diagnostic messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 136classifying as errors . . . . . . . . . . . . . . . . . . . . . . . . . . . 147classifying as remarks . . . . . . . . . . . . . . . . . . . . . . . . . 148classifying as warnings . . . . . . . . . . . . . . . . . . . . . . . . 148disabling warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . 159disabling wrapping of . . . . . . . . . . . . . . . . . . . . . . . . . 160enabling remarks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 164listing all used . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 149suppressing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 148--diagnostics_tables (compiler option) . . . . . . . . . . . . . . . 149diag_default (pragma directive) . . . . . . . . . . . . . . . . . . . . 203--diag_error (compiler option) . . . . . . . . . . . . . . . . . . . . . 147diag_error (pragma directive) . . . . . . . . . . . . . . . . . . . . . . 204--diag_remark (compiler option). . . . . . . . . . . . . . . . . . . . 148diag_remark (pragma directive) . . . . . . . . . . . . . . . . . . . . 204--diag_suppress (compiler option) . . . . . . . . . . . . . . . . . . 148diag_suppress (pragma directive) . . . . . . . . . . . . . . . . . . . 204--diag_warning (compiler option) . . . . . . . . . . . . . . . . . . . 148diag_warning (pragma directive) . . . . . . . . . . . . . . . . . . . 205DIFUNCT (segment) . . . . . . . . . . . . . . . . . . . . . . . . . 42, 248directivesfunction for static overlay . . . . . . . . . . . . . . . . . . . . . . . 96pragma . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10, 199directory, specifying as parameter. . . . . . . . . . . . . . . . . . . 140__disable_interrupt (intrinsic function). . . . . . . . . . . . . . . 220disclaimer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .iiDLIB. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8, 233building customized library . . . . . . . . . . . . . . . . . . . . . . 47configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47configuring. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46, 149debug support. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47reference information. See the online help system . . . . 231runtime environment . . . . . . . . . . . . . . . . . . . . . . . . . . . 45--dlib_config (compiler option). . . . . . . . . . . . . . . . . . . . . 149Dlib_defaults.h (library configuration file) . . . . . . . . . . . . . 55dl430libname.h . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55document conventions. . . . . . . . . . . . . . . . . . . . . . . . . . . xxivdocumentation, library . . . . . . . . . . . . . . . . . . . . . . . . . . . 231domain errors, implementation-defined behavior . . . 258, 261269
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MSP430 IAR C/C++ CompilerReference
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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
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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
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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+
Page 198 and 199:
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
Page 244 and 245: 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 292 and 293: inary streams (CLIB) . . . . . . .
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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