By declaring functions to be referenced from an assembly-language program using the extern "C" keyword, the function can be referenced using the same rules as in (2) above. However, functions declared using extern "C" cannot be overloaded.

[Example of C++ source]

extern "C"

void sub()

{

     :

}

[Example of assembly-language source]

     .GLB _sub

     .SECTION P,CODE

       :

     PUSH.L R13

     MOV.L 4[R0],R1

     MOV.L R3,R12

     MOV.L #_sub,R14

     JSR R14

     POP R13

     RTS

       :

     .END