MPLAB C32 C COMPILER USER'S GUIDE

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MPLAB ® C32 C Compiler User’s GuideTHE MICROCHIP WEB SITEMicrochip provides online support via our web site at www.microchip.com. This website is used as a means to make files and information easily available to customers.Accessible by using your favorite Internet browser, the web site contains the followinginformation:• Product Support – Data sheets and errata, application notes and sampleprograms, design resources, user’s guides and hardware support documents,latest software releases and archived software• General Technical Support – Frequently Asked Questions (FAQs), technicalsupport requests, online discussion groups, Microchip consultant programmember listing• Business of Microchip – Product selector and ordering guides, latest Microchippress releases, listing of seminars and events, listings of Microchip sales offices,distributors and factory representativesDS51686A-page 4© 2007 Microchip Technology Inc.
PrefaceDEVELOPMENT SYSTEMS CUSTOMER CHANGE NOTIFICATION SERVICECUSTOMER SUPPORTMicrochip’s customer notification service helps keep customers current on Microchipproducts. Subscribers will receive e-mail notification whenever there are changes,updates, revisions or errata related to a specified product family or development tool ofinterest.To register, access the Microchip web site at www.microchip.com, click on CustomerChange Notification and follow the registration instructions.The Development Systems product group categories are:• Compilers – The latest information on Microchip C compilers and other languagetools. These include the MPLAB C18, MPLAB C30 and MPLAB C32 C compilers;MPASM and MPLAB ASM30 assemblers; MPLINK and MPLAB LINK30object linkers; and MPLIB and MPLAB LIB30 object librarians.• Emulators – The latest information on Microchip in-circuit emulators. Thisincludes the MPLAB REAL ICE and MPLAB ICE 2000 in-circuit emulators.• In-Circuit Debuggers – The latest information on the Microchip in-circuitdebuggers. These include MPLAB ICD 2 and PICkit 2.• MPLAB ® IDE – The latest information on Microchip MPLAB IDE, the Windows ®Integrated Development Environment for development systems tools. This list isfocused on the MPLAB IDE, MPLAB IDE Project Manager, MPLAB Editor andMPLAB SIM simulator, as well as general editing and debugging features.• Programmers – The latest information on Microchip programmers. These includethe MPLAB PM3 device programmer and the PICSTART ® Plus, PICkit 1 andPICkit 2 development programmers.Users of Microchip products can receive assistance through several channels:• Distributor or Representative• Local Sales Office• Field Application Engineer (FAE)• Technical SupportCustomers should contact their distributor, representative or field application engineer(FAE) for support. Local sales offices are also available to help customers. A listing ofsales offices and locations is included in the back of this document.Technical support is available through the web site at: http://support.microchip.comDOCUMENT REVISION HISTORYRevision A (October 2007)• Initial Release of this document.© 2007 Microchip Technology Inc. DS51686A-page 5
Page 1 and 2: MPLAB C32C COMPILERUSER’S GUIDE©
Page 3 and 4: Table of ContentsMPLAB ® C32 C COM
Page 5 and 6: PrefaceMPLAB ® C32 C COMPILERUSER
Page 7: PrefaceRECOMMENDED READINGThis user
Page 11 and 12: Chapter 1. Language SpecificsMPLAB
Page 13 and 14: Language Specifics1.5.6 limits.hThe
Page 15 and 16: Language Specifics__mips___mips_MIP
Page 17 and 18: Language SpecificsThe first_to_chec
Page 19 and 20: Language SpecificsGenerate a branch
Page 21 and 22: Language Specifics1.8.2 Options for
Page 25 and 26: Language SpecificsTABLE 1-5:-Wswitc
Page 27 and 28: Language SpecificsThe following -W
Page 29 and 30: Language SpecificsTABLE 1-6:-Wredun
Page 33 and 34: Language SpecificsTABLE 1-9: SPECIF
Page 35 and 36: Language SpecificsOptions of the fo
Page 37 and 38: Language SpecificsTABLE 1-11:-I--Id
Page 39 and 40: Language SpecificsTABLE 1-11: PREPR
Page 41 and 42: Language Specifics1.8.10 Options fo
Page 43 and 44: Language SpecificsTABLE 1-15:Option
Page 45 and 46: Language Specifics1.10 COMPILING MU
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Page 49 and 50: Library Environment2.6.2 What Multi
Page 51 and 52: Chapter 3. InterruptsMPLAB ® C32 C
Page 53 and 54: Interrupts3.4.2 Vector PragmaThe ve
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Page 57 and 58: Low Level Processor Control4.6 SPEC
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Low Level Processor Control4.8.1.1
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MPLAB ® C32 C COMPILERUSER’S GUI
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Compiler Runtime Environment5.5 HEA
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Compiler Runtime Environment5.7 STA
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Compiler Runtime EnvironmentWithout
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Compiler Runtime EnvironmentFIGURE
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Compiler Runtime Environment5.7.2.9
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Compiler Runtime Environment• The
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Compiler Runtime Environment5.7.4 S
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Compiler Runtime Environment5.8.3 P
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Compiler Runtime Environment(i.e.,
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Compiler Runtime Environment.dbg_da
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Compiler Runtime Environment*/. = A
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Compiler Runtime Environment5.9 RAM
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Implementation Defined BehaviorISO
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Implementation Defined BehaviorImpl
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IndexMPLAB ® C32 C COMPILERUSER’
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IndexCHAR_BIT .....................
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Indexread..........................
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Index-fcaller-saves ...............
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IndexStack Location ...............
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IndexNOTES:© 2007 Microchip Techno
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MPLAB C32 C COMPILER USER'S GUIDE

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