DBCMHEX: CLR A MOV 20H,A MOV 21H,A MOV 22H,A MOV 23H,A LOOP0: CLR C MOV A,@R0 RRC A PUSH PSW JNB ACC3,LOOP1 CLR C SUBB A,#03H LOOP1: JNB ACC7,LOOP2 CLR C SUBB A,#30H LOOP2: MOV @R0,A DEC R0 POP PSW DJNZ R6,LOOP0 CLR A LOOP3: MOV A,@R1 RRC A MOV @R1,A DEC R1 DJNZ R5,LOOP3