C nebo ASM?

[Michal HW]

Tak jsem zkusil prelozit upraveny program s pointery a vysledek neni o moc lepsi:

(PIC18STD)
19:                 do {
20:                  Suma = Suma + *p_Pointer++;
  FFB4    C0FE     MOVFF 0xfe, 0xfe9
  FFB6    FFE9     NOP
  FFB8    C0FF     MOVFF 0xff, 0xfea
  FFBA    FFEA     NOP
  FFBC    50EF     MOVF 0xfef, W, ACCESS
  FFBE    010F     MOVLB 0xf
  FFC0    273F     ADDWF 0x3f, F, BANKED
  FFC2    0100     MOVLB 0
  FFC4    2BFE     INCF 0xfe, F, BANKED
  FFC6    0E00     MOVLW 0
  FFC8    23FF     ADDWFC 0xff, F, BANKED
21:                 } while(Pocet_Byte--);
  FFCA    010F     MOVLB 0xf



Michal Gregor

  ----- Original Message ----- 
  From: Andrej Jancura 
  To: HW-news 
  Sent: Friday, May 22, 2009 11:31 AM
  Subject: Re: C nebo ASM?


  Michal HW  wrote / napísal(a):
  > PIC18 STD
  > A ted napsano v asembleru:
  >     movlw    32
  >     movwf    Pocet_Byte
  >     lfsr 0,Pole
  >     clrf    WREG
  > Pocitej_Soucet
  >     addwf POSTINC0,W
  >     decfsz Pocet_Byre
  >     bra Pocitej_Soucet
  V asembleri si napisal toto...

  Pocet_Byte = 32;
  p_Pointer = &Pole[0]
  Suma = 0;

  do {
  Suma = Suma + *p_Pointer++;
  } while(Pocet_Byte--);

  A.

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