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DMA BUG !!!!!!!!

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Luis Filipe Silva Almeida

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May 5, 1995, 3:00:00 AM5/5/95
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Hi!

I'm trying to make a transfer mem to mem by DMA but i receive an error message
from EMM386 - 'DMA invalid Command' or something like that when i step thru
the instructions :

mov al,1
out 8,al

which is the dma command port, in documentation i possess, it says that
activating bit 0 on port 8 will cause a start transfer mem to mem on the dma
reading from channel 0 and writing to channel 1. I would appreciate any
useful information about this subject.

my email : l41...@alfa.ist.utl.pt

My alias : Satan
My Name : Luis Almeida

Michael L. VanLoon

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May 6, 1995, 3:00:00 AM5/6/95
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In article <3odsep$2...@alfa.ist.utl.pt> l41...@ci.ist.utl.pt (Luis Filipe Silva Almeida) writes:

I'm trying to make a transfer mem to mem by DMA but i receive an
error message from EMM386 - 'DMA invalid Command' or something like

[...]

Pardon me, but what does EMM386 have to do with BSD "unix"?

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Michael L. VanLoon mich...@HeadCandy.com
--< Free your mind and your machine -- NetBSD free un*x >--
NetBSD working ports: 386+PC, Mac, Amiga, HP300, Sun3, Sun4, PC532,
DEC pmax (MIPS R2k/3k), DEC/AXP (Alpha)
NetBSD ports in progress: VAX and others...
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