PicC 9.50 dsPIC Manual.pdf

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Library FunctionsUNGETCHSynopsis#include void ungetch (char c)DescriptionThe ungetch() function will push back the character c onto the console stream, such that a subsequentgetch() operation will return the character. At most one level of push back will be allowed.See Alsogetch(), getche()223
Library FunctionsVA_START, VA_ARG, VA_ENDSynopsis#include void va_start (va_list ap, parmN)type va_arg (ap, type)void va_end (va_list ap)DescriptionThese macros are provided to give access in a portable way to parameters to a function represented ina prototype by the ellipsis symbol (...), where type and number of arguments supplied to the functionare not known at compile time.The rightmost parameter to the function (shown as parmN) plays an important role in thesemacros, as it is the starting point for access to further parameters. In a function taking variable numbersof arguments, a variable of type va_list should be declared, then the macro va_start() invokedwith that variable and the name of parmN. This will initialize the variable to allow subsequent callsof the macro va_arg() to access successive parameters.Each call to va_arg() requires two arguments; the variable previously defined and a type namewhich is the type that the next parameter is expected to be. Note that any arguments thus accessedwill have been widened by the default conventions to int, unsigned int or double. For example if acharacter argument has been passed, it should be accessed by va_arg(ap, int) since the char willhave been widened to int.An example is given below of a function taking one integer parameter, followed by a numberof other parameters. In this example the function expects the subsequent parameters to be pointersto char, but note that the compiler is not aware of this, and it is the programmers responsibility toensure that correct arguments are supplied.Example224#include #include voidpf (int a, ...){
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HI-TECH dsPICC CompilerHI-TECH Soft
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CONTENTSCONTENTS2.4.17 -X: Strip Lo
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CONTENTSCONTENTS3.6.2 Function Retu
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CONTENTSCONTENTS4.3.8.18 SIGNAT . .
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CONTENTSCONTENTS5.13.5 -Okey . . .
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LIST OF TABLESLIST OF TABLES4.4 ASD
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Typographic conventionsIntroduction
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Long Command LinesDSPICC Command-li
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DSPICC Compiler OptionsDSPICC Comma
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FilesC Language Featuresdoing this
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FilesC Language FeaturesThis option
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FilesC Language Features•The abbr
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Supported Data Types and VariablesC
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Storage Class and Object PlacementC
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Register UsageC Language Featuressa
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PsectsC Language Featuresunsigned c
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Interrupt Handling in CC Language F
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Interrupt Handling in CC Language F
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Mixing C and Assembler CodeC Langua
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Mixing C and Assembler CodeC Langua
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PreprocessingC Language FeaturesTab
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PreprocessingC Language FeaturesTab
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PreprocessingC Language Features3.1
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PreprocessingC Language Features36
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Linking ProgramsC Language Features
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Standard I/O Functions and Serial I
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Assembler UsageMacro Assemblersembl
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HI-TECH C Assembly LanguageMacro As
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Program SectionsLinker and Utilitie
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OperationLinker and UtilitiesTable
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OperationLinker and Utilities5.7.6
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OperationLinker and Utilities5.7.15
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OperationLinker and Utilities-ACODE
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Map FilesLinker and Utilitiespreced
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Map FilesLinker and Utilitiesshown
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LibrarianLinker and UtilitiesTable
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ObjtohexLinker and Utilities5.10.5
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CrefLinker and Utilities5.11.1 Chec
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CromwellLinker and Utilities5.12.5
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CromwellLinker and Utilities5.13.2
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CromwellLinker and Utilities114
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Library Functions__CONFIGSynopsis#i
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Library FunctionsABSSynopsis#includ
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Library FunctionsASCTIMESynopsis#in
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Library FunctionsASINSynopsis#inclu
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Library FunctionsATANSynopsis#inclu
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Library FunctionsATOISynopsis#inclu
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Library FunctionsBSEARCHSynopsis#in
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Library FunctionsCALLOCSynopsis#inc
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Library FunctionsCEILSynopsis#inclu
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Library FunctionsReturn ValueThe re
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Library FunctionsCOSSynopsis#includ
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Library FunctionsCPUTSSynopsis#incl
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Library FunctionsDI, EISynopsis#inc
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Library FunctionsEVAL_POLYSynopsis#
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Library FunctionsFABSSynopsis#inclu
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Library FunctionsFREESynopsis#inclu
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Library FunctionsGETCH, GETCHESynop
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Library FunctionsGETSSynopsis#inclu
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Library FunctionsReturn ValueReturn
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Library FunctionsExample#include #i
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Library FunctionsLDEXPSynopsis#incl
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Library FunctionsLOCALTIMESynopsis#
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Library FunctionsLOG, LOG10Synopsis
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Library Functions}if(i = setjmp(jb)
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Library FunctionsSee Alsocalloc(),
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Library FunctionsReturn ValueA poin
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Library Functions}printf("Equal\n")
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Library FunctionsMEMMOVESynopsis#in
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Page 187 and 188: Library Functions}Return ValueFALSE
Page 189 and 190: Library FunctionsPRINTF, VPRINTFSyn
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Page 193 and 194: Library FunctionsPUTCHARSynopsis#in
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Page 227 and 228: Library FunctionsSTRRCHR, STRRICHRS
Page 229 and 230: Library FunctionsSTRSTR, STRISTRSyn
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Page 235: Library FunctionsTOLOWER, TOUPPER,
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Page 241 and 242: Error and Warning Messages(101) #*
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Page 247 and 248: Error and Warning Messages(131) #if
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Error and Warning Messages(361) fun
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Error and Warning Messages(369) sig
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Error and Warning Messages(390) ill
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Error and Warning Messages(418) ima
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Error and Warning Messages(438) bad
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Error and Warning Messages(469) und
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Error and Warning Messages8 bits wi
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Error and Warning Messages(486) pse
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Error and Warning MessagesCan’t f
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Error and Warning Messages(506) rec
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Error and Warning Messages(525) too
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Error and Warning Messages(619) I/O
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Error and Warning Messages(701) unr
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Error and Warning Messages(742) fun
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Error and Warning MessagesA quick c
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Error and Warning Messagesperformed
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Error and Warning Messages(768) con
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Error and Warning Messages(793) unt
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Error and Warning Messages(835) for
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Error and Warning Messages(868) DEL
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Error and Warning Messages(973) onl
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Error and Warning Messages(990) mod
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Error and Warning Messagesdelete wh
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324Error and Warning Messages
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326Chip Information
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INDEXINDEXDB, 80DDW, 81DS, 81DW, 80
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INDEXINDEXbasesC source, 29batch fi
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INDEXINDEXEI, 140ellipsis symbol, 4
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INDEXINDEX-WARNFORMAT=format, 14-C,
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INDEXINDEXMEMSET, 171MODF, 172PERSI
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INDEXINDEXused in executable, 96mul
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INDEXINDEXRAND, 185read-only variab
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INDEXINDEXint types, 32local, 39per
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DSPICC OptionsOptionMeaning-BmodelS
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