Atmel CAVR-4 사용자 설명서

CAVR-4

Part 2. Compiler reference

See also --cpu, page 173, and Processor configuration, page 5.

This option is related to the Processor configuration option in the General Options 
category in IAR Embedded Workbench.

--version1_calls

--version1_calls

This option is provided for backward compatibility. It makes all functions and function 
calls use the calling convention of the A90 IAR Compiler, 

ICCA90

, which is described 

in Calling convention, page 99. 

To change the calling convention of a single function, use the 

_ _version_1

 function 

type attribute. See __version_1, page 214, for detailed information.

This option is related to the Code options in the C/C++ Compiler category in IAR 
Embedded Workbench.

--warnings_affect_exit_code

--warnings_affect_exit_code 

By default, the exit code is not affected by warnings, as only errors produce a non-zero 
exit code. With this option, warnings will generate a non-zero exit code.

To set the equivalent option in IAR Embedded Workbench, select 
Project>Options>C/C++ Compiler>Diagnostics.

-v5

Reserved for future 

derivatives

Allows function calls through farfunc function pointers to 

cover the entire 8 Mbyte code space by using 

EICALL/EIJMP

. 3 bytes are used for function pointers. 

Interrupt vectors are 4 bytes long. The compiler assumes 

that it is possible to have external memory and will 

therefore generate _C segments.

-v6

Reserved for future 

derivatives

Allows function calls through farfunc function pointers to 

cover the entire 8 Mbyte code space by using 

EICALL/EIJMP

. 3 bytes are used for function pointers. 

Interrupt vectors are 4 bytes long.The compiler assumes 

that it is possible to have external memory and will 

therefore generate _C segments.