If you care about the speed, try to find equivalent instruction for movc3. If
not, do the following changes.
> if (bp->b_nleft) {
> . .
> . .
> . .
> . .
> to = bp->b_ptr; .
> asm("movc3 r8,(r11),(r7)"); ==> cnt -= put;
> . ==> while (put--)
> . ==> *to++ = *p++;
> . ==> bp->b_ptr = to;
> . ==> goto top;
> }
> if (cnt >= BUF...
--farhad