XXX: MOV R0,#30H MOV R2,#20 MOV R3,#0LOOP: MOV A,@R0 CJNE A,#60,LP1LP1: JC LP4 CJNE A,#100,LP2 SJMP LP3LP2: JNC LP4LP4: INC R3LP3: INC R0 DJNZ R2,LOOP RET