Microchip Technology XC8 Standard Compiler (Workstation) SW006021-1 SW006021-1 ユーザーズマニュアル
製品コード
SW006021-1
MPLAB
®
XC8 C Compiler User’s Guide
DS52053B-page 212
2012 Microchip Technology Inc.
5.14.3
Predefined Macros
The compiler drivers define certain symbols to the preprocessor, allowing conditional
compilation based on chip type, etc. The symbols listed in Table 5-12 show the more
common symbols defined by the drivers.
compilation based on chip type, etc. The symbols listed in Table 5-12 show the more
common symbols defined by the drivers.
TABLE 5-12:
PREDEFINED MACROS
Symbol
When set
Usage
__CHIPNAME
When chip selected
To indicate the specific chip type
selected, e.g., __16F877
selected, e.g., __16F877
__DATABANK
If eeprom or flash memory imple-
mented
mented
Identifies which bank the EED-
ATA/PMDATA register is found
ATA/PMDATA register is found
__DATE__
Always
To indicate the current date, e.g.,
May 21 2004
May 21 2004
__FILE__
Always
To indicate this source file being
preprocessed.
preprocessed.
__FLASHTYPE
If flash memory is implemented
To indicate the type of flash mem-
ory employed by the target
device, see _PROGMEM below.
ory employed by the target
device, see _PROGMEM below.
__LINE__
Always
To indicate this source line
number.
number.
__J_PART
If PIC18 device
Indicates device a ’J’ series part
__MPLAB_ICDX__
If compiling for MPLAB
®
ICD or
MPLAB ICD 2/3 debugger
(where X is empty, 2 or 3.
Assigned 1 to indicate that the
code is generated for use with the
Microchip MPLAB ICD,ICD 2 or
ICD 3.
Assigned 1 to indicate that the
code is generated for use with the
Microchip MPLAB ICD,ICD 2 or
ICD 3.
__MPLAB_PICKITX__
If compiling for MPLAB
®
PICKIT
2/3
Assigned 1 to indicate that the
code is generated for use with the
Microchip MPLAB PICKIT 2 or
PICKIT 3
code is generated for use with the
Microchip MPLAB PICKIT 2 or
PICKIT 3
__MPLAB_REALICE__
If compiling for MPLAB
®
REALICE
Assigned 1 to indicate that the
code is generated for use with the
Microchip MPLAB REALICE.
code is generated for use with the
Microchip MPLAB REALICE.
__RESETBITS_ADDR
If --RUNTIME option request
STATUS
STATUS
register save
Indicates the address at which
the STATUS register will be saved
the STATUS register will be saved
__TIME__
Always
To indicate the current time, e.g.,
08:06:31
08:06:31
.
__XC
Always
Indicates MPLAB XC compiler for
Microchip in use.
Microchip in use.
__XC8
Always
Indicates MPLAB XC compiler for
Microchip 8-bit devices in use.
Microchip 8-bit devices in use.
__XC8_VERSION
Always
To indicate the compiler’s version
number multiplied by 1000, e.g.,
v1.00 will be represented by
1000.
number multiplied by 1000, e.g.,
v1.00 will be represented by
1000.
_CHIPNAME
When chip selected
To indicate the specific chip type
selected, e.g., _16F877
selected, e.g., _16F877
_BANKBITS_
Always
Assigned 0, 1 or 2 to indicate 1, 2
or 4 available banks or RAM.
or 4 available banks or RAM.
_BANKCOUNT_
Always
To indicate the number of banks
of data memory implemented.
of data memory implemented.
_COMMON_
If common RAM present
To indicate whether device has
common RAM area.
common RAM area.