Development Tools

-smap

[Format]

-smap

[Description]

-	When the smap option is specified, a base address is set for global or static variables defined in the file to be compiled, and a code that uses addresses relative to the base address for accesses to those variables is generated.

[Example]

-	<C source file>

long A,B,C;

void func()

    A = 1;

    B = 2;

    C = 3;

-	<Output code>

_func:

  MOV.L     #_A,R4     ; Sets the address of A as the base address.

  MOV.L     #1,[R4]

  MOV.L     #2,4[R4]   ; Accesses B using the address of A as the base.

  MOV.L     #3,8[R4]   ; Accesses C using the address of A as the base.

[Remarks]

-	This option is only valid for the compilation of C/C++ source programs. It does not apply to programs that have been compiled with the output=src specification or to programs written in assembly language.

-	When the map option and smap option are specified simultaneously, the map option is valid.