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hi, i am working on a pmode FDC driver and i am wondering how to go about reading the result phase of the commands sent to the fdc controller. i try sending commands (for instance a seek command) and i hear the drive move, then i get a fdc interrupt. it is this point where i have the question. once i get the fdc interrupt, can i want till the Main Status Register says there is data available, and then when it does begin reading the result phase bytes? do i have to wait till the MSR says there is data available between each result byte? and do i have to do anything to acknowledge that i read the results other than reading from the port?

thanks a lot in advance!!

ok, one more thing: in protected mode, does the fdc still set a bit of the bios data area at 40:3E? if so, where is this in protected mode? right where it would be in real mode?

are you sure it is the FDC that sets this bit? as far as i know, the BIOS does this after the fdc signalled an irq.