erik malund wrote:
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Isn't the 8255 in a way a screwy memory mapped chip?


Yes, it is. But there is a difference between "talking" to an IDE drive through a 8255 and directly. I was hoping to get better read/write spead. Instead of doing 5 or 6 writes to the 8255, I could just do 2 writes (one to the high byte latch and one to the drive).

Best regards,

Mikkel C. Simonsen