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51单片机子程序

	MOV	R5,A	￡?ò2×÷?a×?D??μ′?·?μ??·μ?3?ê??μ
	MOV	A,DPH
	MOV	R2,A
	MOV	R4,A

MOV	A,B	￡?è?êy?Y??êy
	DEC	A	￡???ò?￡?μ?μ?Dèòa±è??μ?′?êy
	JZ	MME	￡???óDò???êy?Y￡?2?Dèòa±è??
	MOV	R1,A	￡?±￡′?±è??′?êy
	PUSH	DPL	￡?±￡?¤êy?Y?éμ?ê×?·
	PUSH	DPH
MM1:	INC	DPTR	￡????òò???D?μ?êy?Y
	MOVX	A,@DPTR	￡??áè??a??êy?Y
	MOV	B,A	￡?±￡′?
	SETB	C	￡?ó?×?′ó?μ±è??
	SUBB	A,R6
	JC	MM2	￡?2?3?1yμ±?°×?′ó?μ￡?±￡3?μ±?°×?′ó?μ
	MOV	R6,B	￡?3?1yμ±?°×?′ó?μ￡??üD?×?′ó?μ′?·?μ??·
	MOV	R2,DPH	￡?í?ê±?üD?×?′ó?μ′?·?μ??·
	MOV	R3,DPL
	SJMP	MM3
MM2:	MOV	A,B	￡?ó?×?D??μ±è??

CLR	C
	SUBB	A,R7
	JNC	MM3	￡?′óóú?òμèóúμ±?°×?D??μ￡?±￡3?μ±?°×?D??μ
	MOV	R7,B	￡??üD?×?D??μ
	MOV	R4,DPH	￡??üD?×?D??μ′?·?μ??·
	MOV	R5,DPL
MM3:	DJNZ	R1,MM1	￡?′|àííêè?2?êy?Y
	POP	DPH	￡????′êy?Yê×?·
	POP	DPL
MME:	RET

    ￡¨￡2￡μ￡?  ±êo?￡o  ￡í￡í￡ó    1|?ü￡o?óμ￥×??úê?áù????óD·?o?êy?Y?éμ????μ

è??úì??t￡oêy?Y?éμ?ê×?·?úDPTR?D￡?êy?Y??êy?úR7?D?￡
3??úD??￠￡o×?′ó?μ?úR6?D￡? μ??·?úR2R3?D￡?×?D??μ?úR7?D￡?μ??·?úR4R5?D?￡
ó°?ì×ê?′￡oPSW?￠A?￠B?￠R1??R7    ????Dè?ó￡o  ￡′×??ú

MMS:	MOV	B,R7	￡?±￡′?êy?Y??êy
	MOVX	A,@DPTR	￡??áè?μúò???êy?Y
	MOV	R6,A	￡?×÷?a×?′ó?μμ?3?ê??μ
	MOV	R7,A	￡?ò2×÷?a×?D??μμ?3?ê??μ
	MOV	A,DPL	￡?è?μúò???êy?Yμ?μ??·
	MOV	R3,A	￡?×÷?a×?′ó?μ′?·?μ??·μ?3?ê??μ
	MOV	R5,A	￡?ò2×÷?a×?D??μ′?·?μ??·μ?3?ê??μ
	MOV	A,DPH
	MOV	R2,A
	MOV	R4,A
	MOV	A,B	￡?è?êy?Y??êy
	DEC	A	￡???ò?￡?μ?μ?Dèòa±è??μ?′?êy
	JZ	MMSE	￡???óDò???êy?Y￡?2?Dèòa±è??
	MOV	R1,A	￡?±￡′?±è??′?êy
	PUSH	DPL	￡?±￡?¤êy?Y?éμ?ê×?·
	PUSH	DPH

MMS1:	INC	DPTR	￡?μ÷??êy?Y????
	MOVX	A,@DPTR	￡??áè?ò???êy?Y
	MOV	B,A	￡?±￡′?
	SETB	C	￡?ó?×?′ó?μ±è??
	SUBB	A,R6
	JZ	MMS4	￡??àí?￡?2??üD?×?′ó?μ
	JNB	OV,MMS2	￡?2??′ò?3?￡?·?o???óDD§
	CPL	ACC.7	￡?2?ò?3?￡?·?o???è?·′
MMS2:	JB	ACC.7,MMS4￡?2??a?o￡?2??üD?×?′ó?μ
	MOV	R6,B	￡??üD?×?′ó?μ
	MOV	R2,DPH	￡??üD?×?′ó?μ′?·?μ??·
	MOV	R3,DPL
	SJMP	MMS7
MMS4:	MOV	A,B	￡?ó?×?D??μ±è??
	CLR	C
	SUBB	A,R7
	JNB	OV,MMS6	￡?2??′ò?3?￡?·?o???óDD§
	CPL	ACC.7	￡?2?ò?3?￡?·?o???è?·′

MMS6:	JNB	ACC.7,MMS7￡?2??a?y￡?2??üD?×?D??μ
	MOV	R7,B	￡??üD?×?D??μ
	MOV	R4,DPH	￡??üD?×?D??μ′?·?μ??·
	MOV	R5,DPL
MMS7:	DJNZ	R1,MMS1	￡?′|àííêè?2?êy?Y
	POP	DPH	￡????′êy?Yê×?·
	POP	DPL
MMSE:	RET 	
 	
    ￡¨￡2￡?￡?  ±êo?￡o  ￡?￡?￡ó￡±    1|?ü￡o?3Dò2é?ò￡¨￡ò￡?￡í￡?μ￥×??ú±í??

è??úì??t￡o′y2é?òμ??úèY?úA?D￡?±í??ê×?·?úDPTR?D￡?±í??μ?×??úêy?úR7?D?￡
3??úD??￠￡oOV=0ê±￡??3Dòo??úà??ó?÷A?D￡?OV=1ê±￡??′?òμ??￡
ó°?ì×ê?′￡oPSW?￠A?￠B?￠R2?￠R6      ????Dè?ó￡o  ￡2×??ú

FDS1:	MOV	B,A	￡?±￡′?′y2é?òμ??úèY

MOV	R2,#0	￡??3Dòo?3?ê??ˉ￡¨???ò±íê×￡?
	MOV	A,R7	￡?±￡′?±í??μ?3¤?è
	MOV	R6,A
FD11:	MOV	A,R2	￡?°′?3Dòo??áè?±í???úèY
	MOVC	A,@A+DPTR
	CJNE	A,B,FD12￡?ó?′y2é?òμ??úèY±è??
	CLR	OV	￡??àí?￡?2é?ò3é1|
	MOV	A,R2	￡?è???ó|μ??3Dòo?
	RET	
FD12:	INC	R2	￡????ò±í???Dμ???ò????úèY
	DJNZ	R6,FD11	￡?2éíêè?2?±í???úèY
	SETB	OV	￡??′2é?òμ?￡?꧰ü
	RET

    ￡¨￡2￡·￡?  ±êo?￡o  ￡?￡?￡ó￡2    1|?ü￡o?3Dò2é?ò￡¨￡ò￡?￡í￡???×??ú±í??

è??úì??t￡o2é?ò?úèY?úR4?￠R5?D￡?±í??ê×?·?úDPTR?D￡?êy?Y×ü??êy?úR7?D?￡

3??úD??￠￡oOV=0ê±?3Dòo??úà??ó?÷A?D￡?μ??·?úDPTR?D￡?OV=1ê±?′?òμ??￡
ó°?ì×ê?′￡oPSW?￠A?￠R2?￠R6?￠DPTR    ????Dè?ó￡o  ￡2×??ú

FDS2:	MOV	A,R7	￡?±￡′?±í???Dêy?Yμ???êy
	MOV	R6,A
	MOV	R2,#0	￡??3Dòo?3?ê??ˉ￡¨???ò±íê×￡?
FD21:	CLR	A	￡??áè?±í???úèYμ???×??ú
	MOVC	A,@A+DPTR
	XRL	A,R4	￡?ó?′y2é?ò?úèYμ???×??ú±è??
	JNZ	FD22
	MOV	A,#1	￡??áè?±í???úèYμ?μí×??ú
	MOVC	A,@A+DPTR
	XRL	A,R5	￡?ó?′y2é?ò?úèYμ?μí×??ú±è??
	JNZ	FD22
	CLR	OV	￡??àí?￡?2é?ò3é1|
	MOV	A,R2	￡?è???ó|μ??3Dòo?

RET 	
FD22:	INC	DPTR	￡????ò??ò???êy?Y
	INC	DPTR
	INC	R2	￡??3Dòo??óò?
	DJNZ	R6,FD21	￡?2éíêè?2?êy?Y
	SETB	OV	￡??′2é?òμ?￡?꧰ü
	RET

    ￡¨￡2￡?￡?  ±êo?￡o￡?￡?￡?￡±  1|?ü￡o??·?2é?ò￡¨￡ò￡?￡í￡?μ￥×??ú?T·?o???Dòêy?Y±í??

è??úì??t￡o′y2é?òμ??úèY?úà??ó?÷A?D￡?±í??ê×?·?úDPTR?D￡?×??úêy?úR7?D?￡
3??úD??￠￡oOV=0 ê±￡??3Dòo??úà??ó?÷A?D￡?OV=1 ê±￡??′?òμ??￡
ó°?ì×ê?′￡oPSW?￠A?￠B?￠R2?￠R3?￠R4      ????Dè?ó￡o  ￡2×??ú

FDD1:	MOV	B,A	￡?±￡′?′y2é?òμ??úèY
	MOV	R2,#0	￡?????μí??????3?ê??ˉ￡¨???òμúò???êy?Y￡?

MOV	A,R7
	DEC	A
	MOV	R3,A	￡?????????????3?ê??ˉ￡¨???ò×?oóò???êy?Y￡?
FD61:	CLR	C	￡??D??????′óD?
	MOV	A,R3
	SUBB	A,R2
	JC	FD69	￡???????ê§￡?2é?ò꧰ü
	RRC	A	￡?è?????′óD?μ?ò?°?
	ADD	A,R2	￡??óé?????μ?μí??
	MOV	R4,A	￡?μ?μ?????μ??DD?
	MOVC	A,@A+DPTR￡??áè???μ?μ??úèY
	CJNE	A,B,FD65￡?ó?′y2é?òμ??úèY±è??
	CLR	OV	￡??àí?￡?2é?ò3é1|
	MOV	A,R4	￡?è??3Dòo?
	RET 	
FD65:	JC	FD68	￡???μ?μ??úèY±è′y2é?òμ??úèY′ó·?￡?
	MOV	A,R4	￡???′ó￡?è???μ?????

DEC	A	￡???ò?
	MOV	R3,A	￡?×÷?aD?μ?????????
	SJMP	FD61	￡??ìD?2é?ò
FD68:	MOV	A,R4	￡???D?￡?è???μ?????
	INC	A	￡??óò?
	MOV	R2,A	￡?×÷?aD?μ?????μí??
	SJMP	FD61	￡??ìD?2é?ò
FD69:	SETB	OV	￡?2é?ò꧰ü
	RET
 	
    ￡¨￡2￡1￡?  ±êo?￡o￡?￡?￡?￡2  1|?ü￡o??·?2é?ò￡¨￡ò￡?￡í￡???×??ú?T·?o???Dòêy?Y±í??

è??úì??t￡o2é?ò?úèY?úR4?￠R5?D￡?±í??ê×?·?úDPTR?D￡?êy?Y??êy?úR7?D?￡
3??úD??￠￡oOV=0 ê±?3Dòo??úà??ó?÷A?D￡??·?úDPTR?D￡?OV=1 ê±?′?òμ??￡
ó°?ì×ê?′￡oPSW?￠A?￠B?￠R1??R7?￠DPTR    ????Dè?ó￡o  ￡2×??ú

FDD2:	MOV	R2,#0	￡?????μí??????3?ê??ˉ￡¨???òμúò???êy?Y￡?
	MOV	A,R7
	DEC	A
	MOV	R3,A	￡?????????????3?ê??ˉ￡????ò×?oóò???êy?Y
	MOV	R6,DPH	￡?±￡′?±í??ê×?·
	MOV	R7,DPL
FD81:	CLR	C	￡??D??????′óD?
	MOV	A,R3
	SUBB	A,R2
	JC	FD89	￡???????ê§￡?2é?ò꧰ü
	RRC	A	￡?è?????′óD?μ?ò?°?
	ADD	A,R2	￡??óé?????μ?μí??
	MOV	R1,A	￡?μ?μ?????μ??DD?
	MOV	DPH,R6
	CLR	C	￡??????????DD?μ?μ??·
	RLC	A
	JNC	FD82
	INC	DPH
FD82:	ADD	A,R7
	MOV	DPL,A

JNC	FD83
	INC	DPH
FD83:	CLR	A	￡??áè???μ?μ??úèYμ???×??ú
	MOVC	A,@A+DPTR
	MOV	B,R4	￡?ó?′y2é?ò?úèYμ???×??ú±è??
	CJNE	A,B,FD84￡?2??àí?
	MOV	A,#1	￡??áè???μ?μ??úèYμ?μí×??ú
	MOVC	A,@A+DPTR
	MOV	B,R5
	CJNE	A,B,FD84￡?ó?′y2é?ò?úèYμ?μí×??ú±è??
	MOV	A,R1	￡?è??3Dòo?
	CLR	OV	￡?2é?ò3é1|
	RET
FD84:	JC	FD86	￡???μ?μ??úèY±è′y2é?òμ??úèY′ó·?￡?
	MOV	A,R1	￡???′ó￡?è???μ?????
	DEC	A	￡???ò?
	MOV	R3,A	￡?×÷?aD?μ?????????
	SJMP	FD81	￡??ìD?2é?ò

FD86:	MOV	A,R1	￡???D?￡?è???μ?????
	INC	A	￡??óò?
	MOV	R2,A	￡?×÷?aD?μ?????μí??
	SJMP	FD81	￡??ìD?2é?ò
FD89:	MOV	DPH,R6	￡??àí?￡????′ê×?·
	MOV	DPL,R7
	SETB	OV	￡?2é?ò꧰ü
	RET


    ￡¨￡3￡°￡?  ±êo?￡o  ￡?￡?￡í￡±    1|?ü￡o?óμ￥×??úê?áù?????T·?o?êy?Y?éμ????ù?μ

è??úì??t￡oêy?Y?éμ?ê×?·?úDPTR?D￡?êy?Y??êy?úR7?D?￡
3??úD??￠￡o???ù?μ?úà??ó?÷A?D?￡
ó°?ì×ê?′￡oPSW?￠A?￠R2??R6  ????Dè?ó￡o  ￡′×??ú

DDM1:	MOV	A,R7	￡?±￡′?êy?Y??êy
	MOV	R2,A
	PUSH	DPH
	PUSH	DPL

CLR	A	￡?3?ê??ˉà??óoí
	MOV	R4,A
	MOV	R5,A
DM11:	MOVX	A,@DPTR	￡??áè?ò???êy?Y
	ADD	A,R5	￡?à??óμ?à??óoí?D
	MOV	R5,A
	JNC	DM12
	INC	R4
DM12:	INC	DPTR	￡?μ÷??????
	DJNZ	R2,DM11	￡?à??óíêè?2?êy?Y
	LCALL	D457	￡??ó???ù?μ￡¨R4R5￡ˉR7￡-?úR3￡?
	MOV	A,R3	￡?è????ù?μ
	POP	DPL
	POP	DPH
	RET

    ￡¨￡3￡±￡?  ±êo?￡o  ￡?￡?￡í￡2    1|?ü￡o?ó??×??úê?áù?????T·?o?êy?Y?éμ????ù?μ

è??úì??t￡oêy?Y?éμ?ê×?·?úDPTR?D￡???×??úêy?Y×ü??êy?úR7?D?￡
3??úD??￠￡o???ù?μ?úR4?￠R5?D?￡

ó°?ì×ê?′￡oPSW?￠A?￠R2??R6      ????Dè?ó￡o  ￡′×??ú

DDM2:	MOV	A,R7	￡?±￡′?êy?Y??êy
	MOV	R2,A	￡?3?ê??ˉêy?Y????
	PUSH	DPL	￡?±￡3?ê×?·
	PUSH	DPH
	CLR	A	￡?3?ê??ˉà??óoí
	MOV	R3,A
	MOV	R4,A
	MOV	R5,A
DM20:	MOVX	A,@DPTR	￡??áè?ò???êy?Yμ???×??ú
	MOV	B,A
	INC	DPTR
	MOVX	A,@DPTR	￡??áè?ò???êy?Yμ?μí×??ú
	INC	DPTR
	ADD	A,R5	￡?à??óμ?à??óoí?D
	MOV	R5,A
	MOV	A,B
	ADDC	A,R4
	MOV	R4,A
	JNC	DM21
	INC	R3
DM21:	DJNZ	R2,DM20	￡?à??óíêè?2?êy?Y

POP	DPH	￡????′ê×?·
	POP	DPL
	LJMP	DV31	￡??óR3R4R5￡ˉR7￡-?úR4R5￡?μ?μ????ù?μ

    ￡¨￡3￡2￡?  ±êo?￡o  ￡?￡ò￡±    1|?ü￡o?óμ￥×??úêy?Y?éμ?￡¨òì?ò￡?D￡?éoí

è??úì??t￡oêy?Y?éμ?ê×?·?úDPTR?D￡?êy?Yμ???êy?úR6?￠R7?D?￡
3??úD??￠￡oD￡?éoí?úà??ó?÷A?D?￡
ó°?ì×ê?′￡oPSW?￠A?￠B?￠R4??R7  ????Dè?ó￡o  ￡2×??ú

XR1:	MOV	R4,DPH	￡?±￡′?êy?Y?éμ?ê×?·
	MOV	R5,DPL
	MOV	A,R7	￡???×??ú??êy?÷μ÷??
	JZ	XR10
	INC	R6
XR10:	MOV	B,#0	￡?D￡?éoí3?ê??ˉ
XR11:	MOVX	A,@DPTR	￡??áè?ò???êy?Y

XRL	B,A	￡?òì?ò????
	INC	DPTR	￡????ò??ò???êy?Y
	DJNZ	R7,XR11	￡???×??ú??êy?÷??ò?
	DJNZ	R6,XR11
	MOV	DPH,R4	￡????′êy?Yê×?·
	MOV	DPL,R5
	MOV	A,B	￡?è?D￡?éoí
	RET

    ￡¨￡3￡3￡?  ±êo?￡o  ￡?￡ò￡2    1|?ü￡o?ó??×??úêy?Y?éμ?￡¨òì?ò￡?D￡?éoí

è??úì??t￡oêy?Y?éμ?ê×?·?úDPTR?D￡???×??úêy?Y×ü??êy?úR6?￠R7?D?￡
3??úD??￠￡oD￡?éoí?úR2?￠R3?D?￡
ó°?ì×ê?′￡oPSW?￠A?￠R2??R7      ????Dè?ó￡o  ￡2×??ú

XR2:	MOV	R4,DPH	￡?±￡′?êy?Y?éμ?ê×?·
	MOV	R5,DPL
	MOV	A,R7	￡???×??ú??êy?÷μ÷??

JZ	XR20
	INC	R6
XR20:	CLR	A	￡?D￡?éoí3?ê??ˉ
	MOV	R2,A
	MOV	R3,A
XR21:	MOVX	A,@DPTR	￡??áè?ò???êy?Yμ???×??ú
	XRL	A,R2	￡?òì?ò????
	MOV	R2,A
	INC	DPTR
	MOVX	A,@DPTR	￡??áè?ò???êy?Yμ?μí×??ú
	XRL	A,R3	￡?òì?ò????
	MOV	R3,A
	INC	DPTR	￡????ò??ò???êy?Y
	DJNZ	R7,XR21	￡???×??ú??êy?÷??ò?
	DJNZ	R6,XR21
	MOV	DPH,R4	￡????′êy?Yê×?·
	MOV	DPL,R5
	RET

    ￡¨￡3￡′￡?  ±êo?￡o  ￡ó￡?￡ò￡?    1|?ü￡oμ￥×??ú?T·?o?êy?Y?é??Dò￡¨??Dò￡?

è??úì??t￡oêy?Y?éμ?ê×?·?úR0?D￡?×??úêy?úR7?D?￡

3??úD??￠￡oíê3é??Dò￡¨??Dò￡?
ó°?ì×ê?′￡oPSW?￠A?￠R2??R6      ????Dè?ó￡o  ￡2×??ú

SORT:	MOV	A,R7
	MOV	R5,A	￡?±è??′?êy3?ê??ˉ
SRT1:	CLR	F0	￡?????±ê??3?ê??ˉ
	MOV	A,R5	￡?è?é?±é±è??′?êy
	DEC	A	￡?±?±é±èé?±é??éùò?′?
	MOV	R5,A	￡?±￡′?±?±é′?êy
	MOV	R2,A	￡??′??μ???êy?÷?D
	JZ	SRT5	￡?è??aá?￡???Dò?áê?
	MOV	A,R0	￡?±￡′?êy?Y????
	MOV	R6,A
SRT2:	MOV	A,@R0	￡??áè?ò???êy?Y
	MOV	R3,A
	INC	R0	￡????ò??ò???êy?Y
	MOV	A,@R0	￡??ù?áè?ò???êy?Y
	MOV	R4,A

CLR	C
	SUBB	A,R3	￡?±è??á???êy?Yμ?′óD?
	JNC	SRT4	￡??3Dò?yè·￡¨??Dò?ò?àí?￡?￡?2?±?????
	SETB	F0	￡?éèá￠????±ê??
	MOV	A,R3	￡???á???êy?Y????????
	MOV	@R0,A
	DEC	R0
	MOV	A,R4
	MOV	@R0,A
	INC	R0	￡????ò??ò???êy?Y
SRT4:	DJNZ	R2,SRT2	￡?íê3é±?±éμ?±è??′?êy
	MOV	A,R6	￡????′êy?Yê×?·
	MOV	R0,A
	JB	F0,SRT1	￡?±?±éè???DD1y????￡??òDè?ìD???Dò
SRT5:	RET		￡???Dò?áê?
	END