Re: [ASM] OUT on XP


Hello Rémy,

Find all about Serial.com in here:

http://www.cs.utk.edu/~shuford/terminal/blum_serial_port.txt

dated 1995, but still valid for RS232.
(but don't store it as .txt as it then looses the format,
better store it as .html)

You also should check on RBIL (INT/IRQ/ports and more).

The code you show is actually really awful and detouring.

Newer PC's will not have the old-styled 8259 in there.
But even new ones may be part of the chipset and were
configured through a PCI story (check your BIOS setup),
they may be still enough downward compatible so you may
use all the info anyway.


I didn't follow all the logic in the code you presented,
But this 'dummy'-read of data-port actually clears the
'transmitter full'-flag which may have been an IRQ-reason.

I haven't tried kernelmode drivers in any windoze nor XP,
seems it needs a lot of OS-specific information.

__
wolfgang



.

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