[Dev-C++] need some help with 'asm'

Hi all. I need some help. I have some c source that I wish to compile, =
however I always get a compile error "parse error before '{' " and then =
for the next few lines " nondigits in number and not hexadecimal". The =
code which gives this error is as follows:

void clearscreen() {
  __asm {
            mov ax,0f00h
            int 010h
            mov ah,0
            int 010h
  }
}


Then further on in the program I also get "pares error before 'far' " =
for the following:

word portaddr(int n) {                      // base address of port LPTn
  return(*(word far *)(0x00000408+2*n-2));
}


I can give the source to anyone who would like to examine it, if it =
would help.

Thanks,
Richard