hmsheng
Full Member level 4
_outp how to use
My COM1 I/O port is 0x000003F8-0x000003FF. When I use
_outp(0x000003F8, 0x00)
to write a byte to COM1, error occurs (see attached file).
Can anyone tell me why.
My COM1 I/O port is 0x000003F8-0x000003FF. When I use
_outp(0x000003F8, 0x00)
to write a byte to COM1, error occurs (see attached file).
Can anyone tell me why.