The Compiler supports target processor instructions inside C functions.
The asm keyword is a synonym for __asm, which is allowed when the -Ansi: Strict ANSI compiler option is not present (as shown in the following listing).
See Non-ANSI Keywords in HC(S)08 Backend for details.
__asm { nop nop ; comment } asm ("nop; nop"); __asm("nop\n nop"); __asm "nop"; __asm nop; #asm nop nop #endasm