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Cx51 User's Guide
Cx51 Introduction
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jmp_buf
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Routines By Category
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Include Files
SFR Definitions
80c517.h
absacc.h
assert.h
ctype.h
float.h
intrins.h
limits.h
math.h
rtx51tny.h
setjmp.h
stdarg.h
stddef.h
stdio.h
stdlib.h
string.h
Reference
_chkfloat_
_crol_
_cror_
_getkey
_irol_
_iror_
_lrol_
_lror_
_nop_
_pop_
_push_
_testbit_
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abs
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acos517
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asin517
assert
atan
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atan517
atof
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log517
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printf
printf517
putchar
puts
rand
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scanf
scanf517
setjmp
sin
sin517
sinh
sprintf
sprintf517
sqrt
sqrt517
srand
sscanf
sscanf517
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strchr
strcmp
strcpy
strcspn
strlen
strncat
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strncpy
strpbrk
strpos
strrchr
strrpbrk
strrpos
strspn
strstr
strtod
strtod517
strtok
strtol
strtoul
switchbank
tan
tan517
tanh
toascii
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va_arg
va_end
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vprintf
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Appendix
Library Files
The C51 library includes six different compile-time libraries which are optimized for various functional requirements. These libraries support most of the ANSI C function calls.
| Library File | Description |
|---|---|
| C51S.LIB | Small model library without floating-point arithmetic. |
| C51FPS.LIB | Small model floating-point arithmetic library. |
| C51C.LIB | Compact model library without floating-point arithmetic. |
| C51FPC.LIB | Compact model floating-point arithmetic library. |
| C51L.LIB | Large model library without floating-point arithmetic. |
| C51FPL.LIB | Large model floating-point arithmetic library. |
| 80C751.LIB | Library for the Philips 750/751/752 derivatives. |
Programs written for the Philips 80C51MX, Dallas 390 Contiguous Mode, and Variable Code Banking require a different set of C51 run-time libraries. The linker automatically includes the correct library set to your project.
The following library sets are available in the PK51 Professional Developer's Kit. Each library set consists of six different library files as explained in the previous table.
| Library Set | Description |
|---|---|
| C51*.LIB | Standard library set of Classic 8051. |
| C51B*.LIB | Library set for Classic 8051 with far memory type (variable banking) support. |
| C51M*.LIB | Library set for Mentor M8051EW on-chip program code banking (IBANKING). |
| C51N*.LIB | Library set for Mentor M8051EW with far memory type support and on-chip program code banking (IBANKING). |
| CD51*.LIB | Library set for Dallas Contiguous Mode. |
| CX51*.LIB | Library set for Philips 80C51MX for ROM(LARGE), ROM(COMPACT), and ROM(SMALL). |
| CH51*.LIB | Library set for Philips 80C51MX without ECRM mode and ROM(HUGE). |
| CS51*.LIB | Library set for Philips 80C51MX with ECRM mode and ROM(HUGE). |
Note
- Normally, you do not need to manually specify libraries for the library routines you use. The compiler includes special references to the library in the generated object file. Of course, you may specify the NODEFAULTLIBRARY directive to the linker to disable automatic linkage with the default libraries.
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