MPLAB C Compiler for PIC24 MCUs and dsPIC DSCs ... - Microchip

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16-Bit C Compiler User’s Guide NOTES: DS51284H-page 214 © 2008 Microchip Technology Inc.
G.1 PREAMBLE MPLAB ® C COMPILER FOR PIC24 MCUs AND dsPIC ® DSCs USER’S GUIDE Appendix G. GNU Free Documentation License GNU Free Documentation License Version 1.2, November 2002 Copyright (C) 2000, 2001, 2002 Free Software Foundation, Inc. 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA Everyone is permitted to copy and distribute verbatim copies of this license document, but changing it is not allowed. The purpose of this License is to make a manual, textbook, or other functional and useful document “free” in the sense of freedom: to assure everyone the effective freedom to copy and redistribute it, with or without modifying it, either commercially or non commercially. Secondarily, this License preserves for the author and publisher a way to get credit for their work, while not being considered responsible for modifications made by others. This License is a kind of “copyleft”, which means that derivative works of the document must themselves be free in the same sense. It complements the GNU General Public License, which is a copyleft license designed for free software. We have designed this License in order to use it for manuals for free software, because free software needs free documentation: a free program should come with manuals providing the same freedoms that the software does. But this License is not limited to software manuals; it can be used for any textual work, regardless of subject matter or whether it is published as a printed book. We recommend this License principally for works whose purpose is instruction or reference. G.2 APPLICABILITY AND DEFINITIONS This License applies to any manual or other work, in any medium, that contains a notice placed by the copyright holder saying it can be distributed under the terms of this License. Such a notice grants a world-wide, royalty-free license, unlimited in duration, to use that work under the conditions stated herein. The “Document”, below, refers to any such manual or work. Any member of the public is a licensee, and is addressed as “you”. You accept the license if you copy, modify, or distribute the work in a way requiring permission under copyright law. A “Modified Version” of the Document means any work containing the Document or a portion of it, either copied verbatim, or with modifications and/or translated into another language. © 2008 Microchip Technology Inc. DS51284H-page 215
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MPLAB ® C COMPILER FOR PIC24 MCUs
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Table of Contents A.5 Identifiers .
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INTRODUCTION MPLAB ® C COMPILER FO
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CONVENTIONS USED IN THIS GUIDE The
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THE MICROCHIP WEB SITE Preface C Re
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1.1 INTRODUCTION 1.2 HIGHLIGHTS MPL
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1.5 COMPILER FEATURE SET Compiler O
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Differences Between 16-Bit Device C
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Using the Compiler on the Command L
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3.6 ENVIRONMENT VARIABLES Using the
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4.1 INTRODUCTION 4.2 HIGHLIGHTS 4.3
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4.5 MEMORY SPACES Run Time Environm
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Run Time Environment 1. It is possi
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4.8 SOFTWARE STACK Run Time Environ
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FIGURE 4-2: CALL OR RCALL Stack gro
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4.11 FUNCTION CALL CONVENTIONS Run
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Run Time Environment The compiler a
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4.14.2 String Literals as Arguments
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6.1 INTRODUCTION MPLAB ® C COMPILE
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6.3 PMP POINTERS Additional C Point
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6.4 EXTERNAL POINTERS 6.3.3 Define
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ead_external16 Additional C Pointer
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Additional C Pointer Types } else {
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7.5 USING SFRS Device Support Files
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7.6 USING MACROS Device Support Fil
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EXAMPLE 7-2: EEDATA ACCESS VIA PSV
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Interrupts When using the interrupt
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8.4.1 dsPIC30F DSCs (Non-SMPS) Inte
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8.4.3 PIC24F MCUs Interrupt Vectors
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Interrupts TABLE 8-3: INTERRUPT VEC
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Interrupts TABLE 8-4: INTERRUPT VEC
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85 _Interrupt85 _AltInterrupt85 Res
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8.8 ENABLING/DISABLING INTERRUPTS I
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Interrupts 2. Unsafe: read bar inte
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LATGbits.LATG2 = 0; /* No problem l
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Mixing Assembly Language and C Modu
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A.5 IDENTIFIERS A.6 CHARACTERS Impl
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Implementation-Defined Behavior The
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A.15 PREPROCESSING DIRECTIVES Imple
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A.17 SIGNALS A.18 STREAMS AND FILES
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A.24 GETENV A.25 SYSTEM A.26 STRERR
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B.1 INTRODUCTION MPLAB ® C COMPILE
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__builtin_btg Built-in Functions De
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__builtin_clr_prefetch Argument: xp
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__builtin_dmaoffset Built-in Functi
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__builtin_fbcl Built-in Functions A
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__builtin_modsd Argument: dividend
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__builtin_mpy Error Messages An err
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__builtin_mulss Built-in Functions
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__builtin_psvoffset Built-in Functi
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__builtin_subab Built-in Functions
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__builtin_tblwth Built-in Functions
Page 169 and 170: C.1 INTRODUCTION C.2 ERRORS MPLAB
Page 171 and 172: Diagnostics ambiguous abbreviation
Page 173 and 174: Diagnostics cast specifies function
Page 175 and 176: F Diagnostics ‘identifier’ fail
Page 177 and 178: Diagnostics initializer for static
Page 179 and 180: Diagnostics invalid use of undefine
Page 181 and 182: N Diagnostics negative width in bit
Page 183 and 184: R Diagnostics redeclaration of ‘i
Page 185 and 186: Diagnostics symbol ‘symbol’ not
Page 187 and 188: Diagnostics void expression between
Page 189 and 190: Diagnostics anonymous union declare
Page 191 and 192: Diagnostics comparison between sign
Page 193 and 194: duplicate ‘const’ The ‘const
Page 195 and 196: Diagnostics function might be possi
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Page 199 and 200: Diagnostics library function ‘ide
Page 201 and 202: P Diagnostics parameter has incompl
Page 203 and 204: Diagnostics shift count >= width of
Page 205 and 206: Diagnostics too many arguments for
Page 207 and 208: V Diagnostics __VA_ARGS__ can only
Page 209 and 210: MPLAB ® C COMPILER FOR PIC24 MCUs
Page 211 and 212: MPLAB C Compiler for PIC18 MCUs vs.
Page 217 and 218: E.1 INTRODUCTION E.2 HIGHLIGHTS MPL
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Page 223 and 224: G.3 VERBATIM COPYING G.4 COPYING IN
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Page 229 and 230: Glossary File Registers On-chip dat
Page 231 and 232: Glossary Machine Language A set of
Page 233 and 234: Glossary Stack, Software Memory use
Page 235 and 236: Symbols __builtin_add..............
Page 237 and 238: -fpack-struct .....................
Page 239 and 240: -idirafter.........................
Page 241 and 242: Peephole Optimization..............
Page 243 and 244: -Wsequence-point...................
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MPLAB C Compiler for PIC24 MCUs and dsPIC DSCs ... - Microchip

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