MOV 57H,#04H SETB F0 LJMP S_PLAY Y53:
MOV 57H,#04H SETB F0 LJMP S_PLAY Y52:
MOV 56H,#29H ; MOV A,R6 JB ACC.2,Y54 MOV 56H,#30H Y54:
MOV 57H,#04H CLR F0 LJMP S_PLAY Y51:
MOV A,R2 ;R2 MOV R0,A LCALL D_BCD MOV 56H,A MOV 57H,#05H CLR F0 LJMP S_PLAY RY5:
前一个月不是闰月 中为日的值
CJNE R2,#00H,RY51
MOV 56H,#29H ;R2中为0，则为前一个月 MOV A,R6 ;的最后一天 JB ACC.1,RY52 MOV 56H,#30H RY52:
MOV 57H,#05H CLR F0 LJMP S_PLAY RY51:
MOV A,R2 ;R2中为日的值 MOV R0,A LCALL D_BCD MOV 56H,A MOV 57H,#05H SETB F0 LJMP S_PLAY Y6:
CJNE R2,#00H,Y61
LCALL CHECKRE ;查前一个月是否为闰月 CJNE A,#05H,Y62
MOV 56H,#29H ;前一个月是闰月 MOV A,R4 ;R2中为0，则为前一个月 ANL A,#0FH ;的最后一天 JNZ Y63
MOV 56H,#30H MOV 57H,#05H SETB F0 LJMP S_PLAY Y63:
MOV 57H,#05H SETB F0 LJMP S_PLAY Y62:
MOV 56H,#29H ; MOV A,R6 JB ACC.1,Y64 MOV 56H,#30H Y64:
MOV 57H,#05H CLR F0 LJMP S_PLAY Y61:
MOV A,R2 ;R2 MOV R0,A LCALL D_BCD MOV 56H,A MOV 57H,#06H CLR F0 LJMP S_PLAY
前一个月不是闰月 中为日的值
RY6:
CJNE R2,#00H,RY61
MOV 56H,#29H ;R2中为0，则为前一个月 MOV A,R6 ;的最后一天 JB ACC.0,RY62 MOV 56H,#30H RY62:
MOV 57H,#06H CLR F0 LJMP S_PLAY RY61:
MOV A,R2 ;R2中为日的值 MOV R0,A LCALL D_BCD MOV 56H,A MOV 57H,#06H SETB F0 LJMP S_PLAY Y7:
CJNE R2,#00H,Y71
LCALL CHECKRE ;查前一个月是否为闰月 CJNE A,#06H,Y72
MOV 56H,#29H ;前一个月是闰月 MOV A,R4 ;R2中为0，则为前一个月 ANL A,#0FH ;的最后一天
