interfacing ...........\blink.asm ...........\blink1.asm ...........\COMP.ASM ...........\counter.asm ...........\DIS.ASM ...........\dis1.asm ...........\JOHNSON.ASM ...........\key.asm ...........\RING.ASM ...........\roll.asm ...........\roll1.asm ...........\SDIS.ASM ...........\STEP.ASM ...........\STEP1.ASM ...........\step2.asm ...........\step3.asm ...........\STEPC.ASM