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Subjectassembler -> linux system calls
I am trying to write a linux device driver for a data acquisition
card. The little homepage for my project is at
http://mc303.ulyssis.org/heim/
There is already a DOS driver available, and I am trying to port the
DOS code right now.

Somewhere in the DOS code, there is some assembler code included:

.RADIX 16
.MODEL SMALL

.486


.CODE

PUBLIC _inpl

_inpl PROC FAR

push bp
mov bp,sp

mov dx, Word Ptr [bp+6]
in EAX,dx

; bswap EAX

push EAX
pop ax
pop dx

mov sp,bp
pop bp
ret
_inpl ENDP


PUBLIC _inplI

_inplI PROC FAR

push bp
mov bp,sp

mov dx, Word Ptr [bp+6]
in EAX,dx

push EAX
pop ax
pop dx

mov sp,bp
pop bp
ret
_inplI ENDP



PUBLIC _swem

_swem PROC FAR

push bp
mov bp,sp

mov EAX, DWord Ptr [bp+6]

bswap EAX

push EAX
pop ax
pop dx

mov sp,bp
pop bp
ret
_swem ENDP


PUBLIC _outpl

_outpl PROC FAR

push bp
mov bp,sp

mov dx, Word Ptr [bp+0ah]
mov ax, Word Ptr [bp+8]
push ax
push dx
pop EAX
mov dx, Word Ptr [bp+6]
out dx,EAX

mov sp,bp
pop bp
ret
_outpl ENDP


PUBLIC _outplI

_outplI PROC FAR

push bp
mov bp,sp

mov dx, Word Ptr [bp+8]
mov ax, Word Ptr [bp+0ah]
push ax
push dx
pop EAX
mov dx, Word Ptr [bp+6]
out dx,EAX

mov sp,bp
pop bp
ret
_outplI ENDP

END


I would like to know by what linux native system calls I can replace
the commands inpl, inplI, outpl, outplI, swem. I guess the following
mapping should do it:

DOS assembler -> Linux

inpl inpl
inplI ???
outpl outpl
outplI ???
swem ???


Could somebody tell me what function to use where the question marks
are written? Are the other mappings from inpl and outpl also correct?

Thanks for helping me out,
mc303

PS: The DOS code is also at http://mc303.ulyssis.org/heim

--
Ing. Bart Vandewoestyne Bart.Vandewoestyne@pandora.be
Hugo Verrieststraat 48 GSM: +32 (0)478 397 697
B-8550 Zwevegem http://users.pandora.be/vandewoestyne
----------------------------------------------------------------------
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