 C166 User's Guide | |
| Home Products Events Support | |
On-Line Manuals
C166 User's Guide
C166 Introduction Compiling Programs
Environment Settings Command Prompt ERRORLEVEL Output Files Listing (LST) File Preprocessor (I) File Object (OBJ) File Source (SRC) File Directives Reference ASM ASMEXPAND BROWSE BYTEALIGN CODE COMMONRET COMPACT COND DEBUG DEFINE DISABLE DYNAMICUSRSTK EJECT ENDASM EXTINS FIX_BR03 FIX166 FIX167 FIX272 FIX32F FIXBFLD FIXMDU FIXPEC FIXROM FLOAT64 HCOMPACT HLARGE HOLD INCDIR INIT LARGE LISTINCLUDE MAC MEDIUM MOD167 MODV2 NOALIAS NOAMAKE NOASMEXPAND NOCOND NODPPSAVE NOEXTEND NOFIXDPP NOFRAME NOINIT NOOBJECT NOPRINT NOREORDER NOSAVEMAC OBJECT OPTIMIZE ORDER PACK PAGELENGTH PAGEWIDTH PECDEF PREPRINT PREPRINTONLY PRINT REENTRANT REGFILE RENAMECLASS REORDER RESTORE SAVE SAVEMAC SAVESYS SAVEUSR SMALL SRC STATIC SYMBOLS TABS TINY UNSIGNED_CHAR USERSTACKDPP3 WARNING WARNINGLEVEL XLARGE Language Extensions Preprocessor Advanced Programming Error Messages Library Reference AppendixNODPPSAVE Compiler Directive
| Abbreviation | NODS | |||||||||
| Arguments | None. | |||||||||
| Default | The DPP0 and DPP3 registers are saved on interrupt entries. | |||||||||
| µVision | Options — C166 — Save DPP on Interrupt Entry. | |||||||||
| Description | The NODPPSAVE directive instructs the compiler not to preserve the DPP0 and DPP3 registers inside interrupt functions. This control is useful when writing applications for the C167 microcontroller using the MOD167 directive. It may be used when you are certain the DPP0 and DPP3 registers are not altered in assembly subroutines and when all C modules are compiled using the MOD167 directive. Note
| |||||||||
| See Also | MOD167 | |||||||||
| Example |
C166 SAMPLE.C NODPPSAVE #pragma NODPPSAVE The following example: stmt lvl source
1 extern void efunc (void);
2
3 void func (void) interrupt 0x21
4 using ireg1
5 {
6 1 efunc ();
7 1 }
demonstrates code generated using the NODPPSAVE directive:
|
| Contact Site Map Press Privacy | Copyright © 2008 Keil™, An ARM® Company. All rights reserved. |
