MOV IO,C NOP NOP NOP SETB SCLK NOP NOP NOP CLR SCLK NOP NOP
DJNZ R4,READ1 MOV R4,#8 READ2: CLR SCLK
NOP ;´Ó1302ÖжÁ³öÊý¾Ý NOP NOP MOV C,IO NOP NOP NOP NOP NOP RRC A
NOP NOP NOP NOP SETB SCLK NOP
DJNZ R4,READ2 MOV 31H,A CLR RST RET
;BCDÂëת»»Îª10½øÖƳÌÐò~~~~~ BCD_10: MOV A,R0 ANL A,#0FH
MOV R1,A ;¸ßλ¡Á10£¬ ¼ÓµÍλ MOV A,R0 SWAP A ANL A,#0FH MOV B,#10 MUL AB ADD A,R1 MOV R0,A RET
;²éÒ»ÄêÊý¾Ý³ÌÐò~~~~~~~~~~~~~~~~ CHECKMONTH:
LCALL BCD_10 ;Å©ÀúºÍ¹«ÀúΪͬһÄ꣬
;NEW´ËʱR2ÖеÄֵΪFFHʱ£¬R3ÓÐÖµ£¬·ñÔòΪ0 NEW: NOP M1:
MOV A,R2 ;R2¼õÒ»ÔÂÌìÊý CLR C SUBB A,#29 MOV R1,A MOV A,R6 JB ACC.6,SM11 MOV A,R2 CLR C SUBB A,#30 MOV R1,A SM11: JC SM12
MOV A,R1 ;R2¼õ1ÔÂÌìÊý£¬¹»¼õ MOV R2,A ;ת¶þÔ AJMP M2 SM12:
CJNE R3,#00H,M13 ;R2¼õ1ÔÂÌìÊý LJMP Y1 ;²»¹»¼õ£¬ÅÐR3Ϊ0·ñ M13:
MOV A,R2 ;²»Îª0£¬R3¼Óµ½R2ÖÐ ADD A,R3 ;ÔÙÈÃÒ»Ô¼õ MOV R2,A ;»¹²»¹»£¬ÔòתY1 MOV R3,#00H AJMP M1 M2:
CLR C ;R2¼õÒ»ÔÂÌìÊý£¬¹»¼õ MOV A,R2 ;תÈýÔ SUBB A,#29 MOV R1,A MOV A,R6 JB ACC.5,M21 MOV A,R2 CLR C SUBB A,#30 MOV R1,A M21: JC M22
MOV A,R1 ;R2¼õ2ÔÂÌìÊý£¬¹»¼õ MOV R2,A AJMP MM2 M22:
CJNE R3,#00H,M23 ;R2¼õ2ÔÂÌìÊý LJMP Y2 ;²»¹»¼õ£¬ÅУ¬R3Ϊ0·ñ M23: