Atmel CAVR-4 사용자 설명서
CAVR-4
182
Descriptions of options
AVR® IAR C/C++ Compiler
Reference Guide
-f
-f filename
Reads command line options from the named file, with the default extension
xcl
.
By default, the compiler accepts command parameters only from the command line
itself and the
itself and the
QCCAVR
environment variable. To make long command lines more
manageable, and to avoid any operating system command line length limit, you can use
the
the
-f
option to specify a command file, from which the compiler reads command line
items as if they had been entered at the position of the option.
In the command file, you format the items exactly as if they were on the command line
itself, except that you may use multiple lines, because the newline character acts just as
a space or tab character.
itself, except that you may use multiple lines, because the newline character acts just as
a space or tab character.
Both C and C++ style comments are allowed in the file. Double quotes behave as in the
Microsoft Windows command line environment.
Microsoft Windows command line environment.
Example
For example, you could replace the command line:
iccavr prog -r "-DUsername=John Smith" -DUserid=463760
with
iccavr prog -r -f userinfo
if the file
userinfo.xcl
contains:
"-DUsername=John Smith"
-DUserid=463760
--force_switch_type
--force_switch_type[0|1|2]
Sets the switch type:
Option modifier
Switch type
0
Library call with switch table
1
Inline code with switch table
2
Inline compare/jump logic
Table 45: Specifying switch type