NOP
ENDINT1: POP ACC POP PSW RETI
;-------------------------------------------------------------- ;¶¨Ê±Æ÷1ÖжÏÏìÓ¦×Ó³ÌÐò
ORG 0250H T1: PUSH PSW PUSH ACC
MOV TH1,#0FFH
MOV TL1,#0 LCALL DELAY20MS JB P3.5,ENDT1
INC 42H ; WAITT1: JNB P3.5,WAITT1 LCALL DELAY20MS
JNB P3.5,WA SETB EA LCALL TIP NOP NOP NOP NOP
POP ACC POP PSW ENDT1: RETI
;-------------------------------------------------------------- ;ÑÓʱ2ºÁÃë×Ó³ÌÐò
ORG 02A0H DELAY2MS: MOV R2,#06H L1: DJNZ R2,L1 MOV R1,#10 L2: MOV R0,#97 L3: DJNZ R0,L3 DJNZ R1,L2 RET
;-------------------------------------------------------------- ;ÑÓʱ20ºÁÃë×Ó³ÌÐò
ORG 02C0H DELAY20MS: MOV R6,#10
L5: LCALL DELAY2MS DJNZ R6,L5 RET
;--------------------------------------------------------------
;ÏÈËÍÈëÊÇ ;µÈ´ý²Ù×÷
;Èë¿Ú£º±»³ËÒò×ӵĸßλ·ÅÈë4Bµ¥ÔªÖУ¬±»³ËÒò×ӵĵÍλ·ÅÈë4Aµ¥Ôª ;³ö¿Ú£º½á¹û·ÅÔÚR3,R4ÖÐ
;Õ¼ÓÃ×ÊÔ´£ºR0,R1,R2,R3,R4,A,4AH,4BH,4CH
ORG 0320H ;Òò×Ó±¶ MULTI: MOV R0,4AH ;Òò×ÓµÍλÈë MOV R1,4BH ;Òò×Ó¸ßλÈë MOV R2,4CH ;³ËÊý MOV R3,#00H MOV R4,#00H CHENG2: CLR C
MOV A,R2 RRC A MOV R2,A JNC LOOP2 MOV A,R3 ADD A,R0 MOV R3,A MOV A,R4 ADDC A,R1 MOV R4,A LOOP2: MOV A,R0 RLC A MOV R0,A MOV A,R1 RLC A MOV R1,A MOV A,R2 XRL A,#00H JNZ CHENG2 RET
;-------------------------------------------------------------- ORG 0360H
music: setb p1.6 mov r7, #0ffh loop: lcall daly20ms djnz r7, loop
clr p1.6 ret
ORG 0450H
TIP: MOV R1,#00H CLR P1.7 TIP1: CLR P1.6
LCALL DELAY1 SETB P1.6
LCALL DELAY1 DJNZ R1,TIP1 SETB P1.7 RET
ORG 04A0H DELAY1: MOV R7,#40H DDA: NOP NOP NOP
DJNZ R7,DDA RET END
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