Sends a byte to a hardware I/O port.
OUT port%, data%
A number in the range 0 through 65,535 that identifies the port.
A numeric expression in the range 0 through 255 to send to the port.
INP returns a byte read from a hardware I/O port.
OUT sends a byte to a hardware I/O port.
x% = INP(&H3FC) ’Read COM1 Modem Control Register. OUT &H3FC, (x% XOR 1) ’Change Date Terminal Ready bit.