Freebsd assembly programming - IN/OUT commands.

From: by way of (opacki_at_acn.waw.pl)
Date: 10/16/04

  • Next message: Giorgos Keramidas: "Re: Freebsd assembly programming - IN/OUT commands." 
    Date: Sat, 16 Oct 2004 14:03:39 -0500
To: freebsd-hackers@freebsd.org

    Hi Adam,
    AT the beggining i want to sorry about my poor english.
    I had a short look at your fbd assembly tutorial. I'm have a such
    problem useing IN, OUT commands. In my case i want to "speak" with cmos
    by port 70 and 71. We both know that fbsd as same as linux works in safe
    mode. So we need a permission to use each port. In linux it's a system
    call sys_ioperm (http://www.die.net/doc/linux/man/man2/ioperm.2.html).
    How to ask FreeBSD to allow us to use those ports ? And then we could
    simply do:
             mov al, 0
             out 70h, al
             nop
             nop
             nop
             nop
             in al, 71h
    Do you haveny any idea ?

    Best regards,
    Jan Opacki.

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  • Next message: Giorgos Keramidas: "Re: Freebsd assembly programming - IN/OUT commands."

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