Keil C51指令列表大全
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下表是 Cx51 编译器中可用的控制指令的字母顺序列表。
| Directive | Group | Description |
|---|---|---|
| AREGS | Object | Enables absolute register (ARn) addressing. |
| ASM | Source | Marks the beginning of an inline assembly block. |
| BROWSE1 | Object | Enables source browser information. |
| CODE1 | Listing | Includes generated assembly in the listing file. |
| COMPACT1 | Object | Selects the COMPACT memory model. |
| COND1 | Listing | Includes (in the listing file) conditional source lines skipped by the preprocessor. |
| DEBUG1 | Object | Includes debugging information in the object file. |
| DEFINE2 | Source | Defines preprocessor names on the command line. |
| DISABLE | Object | Disables interrupts for the duration of a single function. |
| EJECT | Listing | Inserts a form feed character into the listing file. |
| ENDASM | Source | Marks the end of an inline assembly block. |
| FARWARNING | Object | Issue a warning when only 16-bit offset calculations are performed for far addresses. |
| FIXXC800 | Object | Disable generation of MOV dir,dir instruction with two SFR registers. |
| FLOATFUZZY | Object | Sets the number of bits rounded for floating-point comparisons. |
| INCDIR1 | Source | Sets additional include file paths. |
| INTERVAL1 | Object | Specifies the interval to use for interrupt vectors. |
| INTPROMOTE1 | Object | Enables ANSI integer promotion rules. |
| INTVECTOR1 | Object | Specifies the base address for interrupt vectors. |
| LARGE1 | Object | Selects the LARGE memory model. |
| LISTINCLUDE | Listing | Adds contents of include files into the listing file. |
| MAXARGS1 | Object | Specifies the maximum size of variable-length argument lists. |
| MOD517 | Object | Enables support for additional hardware features of the Infineon 80C517 and compatible devices. |
| MODA2 | Object | Enables dual data pointer support for the Atmel 82x8252 and compatible devices. |
| MODAB2 | Object | Enables dual data pointer support for the Analog Devices Microconverters (ADuC B2 devices). |
| MODDA | Object | Enables arithmetic accelerator support for the Dallas 80C390, 80C400, and 5240. |
| MODDP2 | Object | Enables dual data pointer support for the Dallas 320, 520, 530, 550, and compatible devices. |
| MODP2 | Object | Disables dual data pointer support for Philips and Atmel devices. |
| NOAMAKE1 | Object | Excludes build information from the object file. |
| NOAREGS | Object | Disables absolute register (ARn) addressing. |
| NOCOND1 | Listing | Excludes (from the listing file) conditional source lines skipped by the preprocessor. |
| NOEXTEND1 | Source | Disables Cx51 extensions to ANSI C. |
| NOINTPROMOTE1 | Object | Disables ANSI integer promotion rules. |
| NOINTVECTOR1 | Object | Disables generation of interrupt vectors. |
| NOMOD517 | Object | Disables support for additional hardware features of the Infineon 80C517 and compatible devices. |
| NOMODA2 | Object | Disables dual data pointer support for the Atmel 82x8252 and compatible devices. |
| NOMODAB2 | Object | Disables dual data pointer support for the Analog Devices Microconverters (ADuC B2 devices). |
| NOMODDA | Object | Disables arithmetic accelerator support for the Dallas 80C390, 80C400, and 5240. |
| NOMODDP2 | Object | Disables dual data pointer support for the Dallas 320, 520, 530, 550, and compatible devices. |
| MODP2 | Object | Enables dual data pointer support for Philips and Atmel devices. |
| NOOBJECT1 | Object | Disables object file generation. |
| NOPRINT1 | Listing | Disables listing file generation. |
| NOREGPARMS | Object | Disables passing parameter in registers. |
| OBJECT1 | Object | Specifies the name for the object file. |
| OBJECTADVANCED1 | Object | Adds additional information to the object file for linker-level program optimizations. |
| OBJECTEXTEND1 | Object | Adds additional debugging information to the object file. |
| OMF21 | Object | Generates an OMF2 object module. |
| ONEREGBANK | Object | Generates code for programs that use only one register bank. |
| OPTIMIZE | Object | Specifies the level of optimization performed by the compiler. |
| ORDER1 | Object | Allocates storage for variables in the order in which they are declared. |
| PAGELENGTH1 | Listing | Specifies the number of lines on a page in the listing file. |
| PAGEWIDTH1 | Listing | Specifies the number of characters on a line in the listing file. |
| PREPRINT1 | Listing | Produces a preprocessor listing file with expanded macros. |
| PRINT1 | Listing | Specifies the name for the listing file. |
| PSOC1 | Object | Generate interrupt vectors for Cypress PSoC devices. |
| REGPARMS | Object | Enables passing parameter in registers. |
| RESTORE | Object | Restores settings for AREGS, REGPARMS, and OPTIMIZE directives. |
| RET_PSTK1 | Object | Uses the COMPACT model reentrant stack for return addresses. |
| RET_XSTK1 | Object | Uses the LARGE model reentrant stack for return addresses. |
| ROM1 | Object | Specifies the ROM model (SMALL, COMPACT or LARGE). |
| SAVE | Object | Saves settings for AREGS, REGPARMS, and OPTIMIZE directives. |
| SMALL1 | Object | Selects the SMALL memory model. |
| SRC1 | Object | Creates an assembler source file instead of an object file. |
| STRING1 | Object | Locates implicit string constants to xdata or far memory. |
| SYMBOLS1 | Listing | Includes a symbol list in the listing file. |
| TABS1 | Listing | Specifies the tab character expansion width for the listing file. |
| USERCLASS1 | Object | Renames memory classes which allows more flexible variable location. |
| VARBANKING1 | Object | Enables far memory type variables. |
| WARNINGLEVEL1 | Listing | Selects the level of warning detection. |
| XCROM1 | Object | Assumes const xdata variables are stored in ROM. |
Note:
- These directives apply to the entire source file and may be specified only once on the command line or at the beginning of the source file using the #pragma statement. They may not be used more than once in a source file.
- Directives and arguments, with the exception of arguments specified with the DEFINE directive, are not case sensitive.