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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 EXTMAC 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 AppendixEXTMAC Compiler Directive
| Abbreviation | None. |
| Arguments | None. |
| Default | Support for MAC instructions is not enabled. |
| µVision | Options — C166 — Misc Controls. |
| Description | The EXTMAC directive enables support for MAC instructions found on the STMicroelectronics ST10 MAC unit. The MAC unit may increase the performance of multiplication, multiply and accumulate, and memory move operations. MAC instructions can be also used with the Extended Inline Assembly feature of the C166 Compiler. |
| See Also | |
| Example | C166 ST10SAMPLE.C EXTMAC #pragma EXTMAC |
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