C nebo ASM?

[Jan Waclawek]

Inak pre porovnanie, toto mi vyplul nejaky nie najnovsi SDCC s -mpic16 (to "16" je "16-bit", t.j. PIC18xxx):

;--------------------------------------------------------
; File Created by SDCC : free open source ANSI-C Compiler
; Version 2.7.4 #4932 (Oct 15 2007) (MINGW32)
; This file was generated Thu May 21 14:34:33 2009
;--------------------------------------------------------
; PIC16 port for the Microchip 16-bit core micros
;--------------------------------------------------------
	list	p=18f452

	radix dec

;--------------------------------------------------------
; public variables in this module
;--------------------------------------------------------
	global _Pom
	global _Ukazatel
	global _Bufer
	global _p_Ukaz
	global _main

;--------------------------------------------------------
; extern variables in this module
;--------------------------------------------------------
	extern __gptrput1
;--------------------------------------------------------
;	Equates to used internal registers
;--------------------------------------------------------
STATUS	equ	0xfd8
FSR0L	equ	0xfe9
FSR0H	equ	0xfea
INDF0	equ	0xfef
POSTDEC1	equ	0xfe5
PRODL	equ	0xff3


; Internal registers
.registers	udata_ovr	0x0000
r0x00	res	1
r0x01	res	1
r0x02	res	1
r0x03	res	1

udata_u1_0	udata
_p_Ukaz	res	3

udata_u1_1	udata
_Pom	res	1

udata_u1_2	udata
_Ukazatel	res	1

udata_u1_3	udata
_Bufer	res	40

;--------------------------------------------------------
; interrupt vector 
;--------------------------------------------------------

;--------------------------------------------------------
; global & static initialisations
;--------------------------------------------------------
; I code from now on!
; ; Starting pCode block
S_u1__main	code
_main:
;	.line	7; u1.c	p_Ukaz = &Bufer[0];
	MOVLW	HIGH(_Bufer)
	BANKSEL	(_p_Ukaz + 1)
	MOVWF	(_p_Ukaz + 1), B
	MOVLW	LOW(_Bufer)
	BANKSEL	_p_Ukaz
	MOVWF	_p_Ukaz, B
	MOVLW	0x80
	BANKSEL	(_p_Ukaz + 2)
	MOVWF	(_p_Ukaz + 2), B
	BANKSEL	_Pom
;	.line	9; u1.c	Pom=0;
	CLRF	_Pom, B
;	.line	10; u1.c	for (Ukazatel=8;Ukazatel<32+8;++Ukazatel) {
	MOVLW	0x08
	BANKSEL	_Ukazatel
	MOVWF	_Ukazatel, B
_00105_DS_:
	MOVLW	0x28
	BANKSEL	_Ukazatel
	SUBWF	_Ukazatel, W, B
	BTFSC	STATUS, 0
	GOTO	_00109_DS_
;	.line	11; u1.c	Pom=Pom+Bufer[Ukazatel];
	MOVLW	LOW(_Bufer)
	BANKSEL	_Ukazatel
	ADDWF	_Ukazatel, W, B
	MOVWF	r0x00
	CLRF	r0x01
	MOVLW	HIGH(_Bufer)
	ADDWFC	r0x01, F
	MOVFF	r0x00, FSR0L
	MOVFF	r0x01, FSR0H
	MOVFF	INDF0, r0x00
	MOVF	r0x00, W
	BANKSEL	_Pom
	ADDWF	_Pom, F, B
;	.line	12; u1.c	*p_Ukaz++=Bufer[Ukazatel];
	MOVFF	_p_Ukaz, r0x01
	MOVFF	(_p_Ukaz + 1), r0x02
	MOVFF	(_p_Ukaz + 2), r0x03
	MOVFF	r0x00, POSTDEC1
	MOVFF	r0x01, FSR0L
	MOVFF	r0x02, PRODL
	MOVF	r0x03, W
	CALL	__gptrput1
	BANKSEL	_p_Ukaz
	INCF	_p_Ukaz, F, B
	BTFSS	STATUS, 0
	BRA	_10105_DS_
	BANKSEL	(_p_Ukaz + 1)
	INCF	(_p_Ukaz + 1), F, B
_10105_DS_:
	BTFSS	STATUS, 0
	BRA	_20106_DS_
	BANKSEL	(_p_Ukaz + 2)
	INCF	(_p_Ukaz + 2), F, B
_20106_DS_:
	BANKSEL	_Ukazatel
;	.line	10; u1.c	for (Ukazatel=8;Ukazatel<32+8;++Ukazatel) {
	INCF	_Ukazatel, F, B
	GOTO	_00105_DS_
_00109_DS_:
	RETURN	



; Statistics:
; code size:	  132 (0x0084) bytes ( 0.10%)
;           	   66 (0x0042) words
; udata size:	   45 (0x002d) bytes ( 3.52%)
; access size:	    4 (0x0004) bytes


	end





----- Original Message ---------------
>Puvodni zprava ze dne 21.5.2009 od Michal HW:
>
>> Divam se ne preklad Hitech C kompilatoru pro PIC18:
>>    Pom=0;
>>    for (Ukazatel=8;Ukazatel<32+8;++Ukazatel) {
>>     Pom=Pom+Bufer[Ukazatel];
>>     *p_Ukaz++=Bufer[Ukazatel];
>>    }
>