portdesc.gml

来自「开放源码的编译器open watcom 1.6.0版的源代码」· GML 代码 · 共 10 行

.pp
A hardware port is used to communicate with a device.
.ix port hardware
.ix 'hardware port'
One or two bytes can be read and/or written from each port, depending
upon the hardware.
Consult the technical documentation for your computer to determine
the port numbers for a device and the expected usage of each port
for a device.