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Cx51 User's Guide
Cx51 Introduction 
Compiling Programs 
Environment Settings Command Prompt ERRORLEVEL Output Files Listing (LST) File Object (OBJ) File Preprocessor (I) File Source (SRC) File Directives Directive List Reference AREGS ASM BROWSE BSE CODE COMPACT COND DEBUG DEFINE DISABLE EJECT ENDASM ENUMINT FARWARNING FIXXC800 FLOATFUZZY INCDIR INTERVAL INTPROMOTE INTVECTOR LARGE LISTINCLUDE MAXARGS MDU_F120 MDU_R515 MOD517 MODA2 MODAB2 MODC2 MODDA MODDP2 MODH2 MODP2 NOAMAKE NOAREGS NOCOND NOEXTEND NOINTPROMOTE NOINTVECTOR NOMDU_F120 NOMDU_R515 NOMOD517 NOMODA2 NOMODAB2 NOMODC2 NOMODDA NOMODDP2 NOMODH2 NOMODP2 NOOBJECT NOPREPROCESS NOPRINT NOREGPARMS OBJECT OBJECTADVANCED OBJECTEXTEND OMF2 ONEREGBANK OPTIMIZE ORDER PAGELENGTH PAGEWIDTH PREPRINT PRINT PSOC REGFILE REGISTERBANK REGPARMS RESTORE RET_PSTK RET_XSTK ROM SAVE SMALL SRC STRING SYMBOLS TABS USERCLASS VARBANKING WARNINGLEVEL XCROM Language Extensions Preprocessor Advanced Programming 8051 Derivatives Error Messages Library Reference AppendixSTRING Compiler Directive
| Abbreviation | None. | ||||||||
| Arguments | )(CODE), (XDATA), or (FAR) | ||||||||
| Default | STRING (CODE) | ||||||||
| µVision | Options — C51 — Misc controls. | ||||||||
| Description | The STRING directive specifies the memory type used for implicit strings. By default, implicit strings are located in code memory. For example:
void main (void) {
printf ("hello world\n");
}
in this example, the string "hello world" is located in code memory. The STRING directive changes the default location for implicitly located strings. This directive must be used carefully, since existing programs might use memory typed pointers to access strings. One good reason to consider changing the default location of implicit strings (to the xdata or far memory areas) to avoid using code banking. This directive is useful especially for extended 8051 devices like the NXP 80C51MX.
Note
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| See Also | |||||||||
| Example |
C51 SAMPLE.C STRING (XDATA)
#pragma STRING (FAR)
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