FILTER5: CLR A MOV R3,A MOV R4,A MOV R7,N MOV R2,ADDPH MOV R1,ADDPL MOV DPTR,#QAVTAB QAVFT1: MOVC A,@A+DPTR MOV B,A MOVX A,@R1 INC DPTR INC R1 MUL AB ADD A,R4 MOV R4,A MOV A,B ADDC A,R3 MOV R3,A DJNZ R7,QAVFT1 MOV A,R4 JNB ACC.7,QAVFT2 INC R3 QAVFT2: MOV A,R3 RET QAVTAB: DB