On Mon, 3 Jun 2002, Dmitriy A. Kiryashov wrote:

> Hi guys. Here is tiny challendge to warm up. ;)
>
> We have X variable. What is shortest possible
> code to obtain 2X + 1 result back into X cell ?
>

How about:

sdcc -S -mpic14 c.c

...

;;      Unrolled 8 X 8 multiplication
;#CSRC  c.c 71
;  achar0 = achar0*2 + 1;
        MOVF    _achar0,W       ;key=000,flow seq=001
        MOVWF   r0x20   ;key=001,flow seq=001
        ADDWF   r0x20,F ;key=002,flow seq=001
        CLRF    r0x21   ;key=003,flow seq=001
        RLF     r0x21,F ;key=004,flow seq=001
        INCF    r0x20,W ;key=005,flow seq=001
        MOVWF   _achar0 ;key=006,flow seq=001

I think I hate C compilers. :)

--
http://www.piclist.com#nomail Going offline? Don't AutoReply us!
email listserv@mitvma.mit.edu with SET PICList DIGEST in the body