苏萦-
ORG 0000H ;程序开始地址0x0000 LJMP START ;复位在0x0000处开始，跳转到START开始运行程序 ORG 000BH ;定时器中断0时跳到INTT0 LJMP INTT0 ; ORG 001BH ;定时器中断1时跳到INTT1 LJMP INTT1 ORG 0030H ;中断向量在0x0030结束，主函数必须在0x0030以后START: ;CLR P3.7 ;P3.7 = 0 CLR 02H ;02H、00H、05H的RAM内容为0 CLR 00H CLR 05H MOV 41H, #0AH ; (41H) = 0AH MOV 42H, #0H ; (42H) = 0 MOV 46H, #00 ; (46H) = 0 SETB EA ;开总中断 SETB ET1 ;开定时器1中断 SETB ET0 ;开定时器0中断 MOV TMOD, #11H ;定时器0、定时器1工作于方式1（16位定时器） MOV TL0, #0B0H ;T0 = 3CB0H = (65536 - 50000) = 15536
MOV TH0, #3CH MOV TL1, #0B0H ;T1 = T0 MOV TH1, #3CH CLR 01H ;(01H) = 0 MOV 45H, #0 ;(45H) = 0 MOV R4,#20 ;(R4) = 20START1: LCALL DISPLAY ;调用DISPLAY JB P3.0,NZRF ;P3.0 == 1跳到NZRF SETB 00H ;(00b) = 1 SETB TR1 ;定时器1开始计数 MOV 47H, #1 ;(47H) = 1 MOV 48H, #3 ;(48H) = 3 MOV 41H, #1 ;(41H) = 1NZRF: JB P3.1, NCF ;P3.1 == 1跳到NCF SETB 00H ;(00b) = 1
SETB TR1 ;开启定时器1 MOV 47H, #3 ;(47H) = 3 MOV 48H, #1 ;(48H) = 1 MOV 41H, #2 ;(41H) = 2NCF: JB P3.2, NSMF ;P3.2 == 1 跳到NSMF SETB 00H ;(00b) = 1 SETB TR1 ;开启定时器1 MOV 47H, #1 ;(47H) = 1 MOV 48H, #5 ;(48H) = 5 MOV 41H, #3 ;(41H) = 3NSMF: JB P3.3, WDS ;P3.3 == 1,跳到WDS acall ms10 ;调用ms10 acall ms10 acall ms10 acall ms10 jnb p3.3,sz ;P3.3 == 0 跳到SZ ljmp WDS ;P3.3 == 1跳到WDS sz: jnb p3.3,$ ;P3.3 == 0,重复判断， == 1时退出 acall ms10 ;调用ms10 acall ms10 SETB 01H ;(01b) = 1 ;MOV C, 00H ;C = 0 ;JNC WDS ;C== 0,跳转到WDS SETB TR0 ;开启定时器0 setb et0 ;使能定时器中断0 INC 45H ; (45H) = (45H) + 1 MOV A, 46H ; A = (46H) ADD A, #10 ; A = A + 10 MOV 46H, A ;(46H) = A MOV A, 45H ;A = (45H) CJNE A,#7, WDS ;A 不等于7 跳转到WDS MOV 45H, #0 ;(45H) = 0 MOV 46H, #0 ;(46H) = 0 CLR 01H ;(01H) = 0 CLR 00H ;(00H) = 0 MOV 41H, #0 ;(41H) = 0 MOV 42H, #0 ;(42H) = 0WDS: JB P3.5 , WYT ;P3.5 == 1跳转WYT acall ms10 ;调用ms10 acall ms10 acall ms10 acall ms10 jnb p3.5,sz1 ;P3.5 不等于0 跳转sz1 ljmp WYT ;跳转WYT sz1: jnb p3.5,$ ;P3.5 == 0,在此等待 acall ms10 ;调用ms10 acall ms10 SETB P3.1 ;P3.1 = 1 CLR P3.0 ;P3.0 = 0WYT: JB P3.6 , WGR ;P3.6 == 1跳转WGR acall ms10 ;调用ms10 acall ms10 acall ms10 acall ms10 jnb p3.6,sz2 ;P3.6 == 0 ，跳转sz2 ljmp WGR ;跳转WGR
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