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i/o port using c++

i/o port using c++

i/o port using c++

(OP)
can anyone help me to use c++ to use an i/o interface, to control robotics,led's, etc.
i am using the dos-based c++ compiler, not a program such as c++ builder, but i also have a copy of that if it is needed.
thanks for your help

RE: i/o port using c++

imbored,

    It really depends upon what OS you are using. If you plan to access i/o through DOS, then you can use inp, outp, and their related cousins. If you are going to use Win32, then you will need to access the device drivers since you cannot access the ports directly. Which OS do you plant to use?

James P. Cottingham

International Veneer Co., Inc.
All opinions are mine alone and do not necessarily reflect those of my employer.

RE: i/o port using c++

(OP)
i am using windows, with a dos window in window. i can use either, if it is easier
thanks for you reply

RE: i/o port using c++

I am using inline assembly with c++ builder to talk directly to the printer port, it is easy and very fast (10,000 3 byte reads per second on a PII 350).
asm
{
mov DX 0x378
mov AL val
out DX, AL
}

Hope it helps

Seth Wright

RE: i/o port using c++

(OP)
how the heck do i use this above code?
i am only very basic with borland and any c++
please help

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