# 3-bit 4-position register 

# Write data
IN0 = WriteData0
IN1 = WriteData1
IN2 = WriteData2
IN3 = WriteAddress0
IN4 = WriteAddress1
IN5 = WriteEnable

# Read data
IN6 = ReadAddress0
IN7 = ReadAddress1
OUT0 = OutData0
OUT1 = Data2Address0
OUT2 = Data2Address1
OUT3 = OutData2
OUT4 = Data2Address2
OUT5 = Data2Address3
OUT6 = OutData1
OUT7 = NotWriteEnable