Hardware Ports

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Peter
Posts: 13
Joined: Wed Jan 05, 2005 12:00 am

Hardware Ports

Post by Peter »

When I set the cursor on the right place in the sceen, I use a hardware-port.
But I can access the video-memory too for setting the cursor, why does almost everybody use the hardware-port?
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gaf
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Posts: 349
Joined: Thu Oct 21, 2004 11:00 pm
Location: Munich, Germany

Re: Hardware Ports

Post by gaf »

Hi,
I think the reason why many people use the hardware port is that the BIOS calls to print strings will then move the hardware cursor. Since a lot of people started in real-mode using these BIOS calls they simply keep on using the hardware cursor later on. (Apart from that there's really no advantage)

reagards,
gaf
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