aa.hier_info

本程序完成带进位输入输出的四位二进制加法运算

|aa
a[0] => y~0.IN0
a[0] => co~0.IN0
a[0] => co~3.IN0
a[1] => y~2.IN0
a[1] => co~4.IN0
a[1] => co~7.IN0
a[2] => y~4.IN0
a[2] => co~8.IN0
a[2] => co~11.IN0
a[3] => y~6.IN0
a[3] => co~12.IN0
a[3] => co~15.IN0
b[0] => y~0.IN1
b[0] => co~0.IN1
b[0] => co~1.IN0
b[1] => y~2.IN1
b[1] => co~5.IN0
b[1] => co~7.IN1
b[2] => y~4.IN1
b[2] => co~9.IN0
b[2] => co~11.IN1
b[3] => y~6.IN1
b[3] => co~13.IN0
b[3] => co~15.IN1
cin => y~1.IN1
cin => co~1.IN1
cin => co~3.IN1
bcdout[0] <= y~1.DB_MAX_OUTPUT_PORT_TYPE
bcdout[1] <= y~3.DB_MAX_OUTPUT_PORT_TYPE
bcdout[2] <= y~5.DB_MAX_OUTPUT_PORT_TYPE
bcdout[3] <= y~7.DB_MAX_OUTPUT_PORT_TYPE
cout <= co~16.DB_MAX_OUTPUT_PORT_TYPE