<BLOCKQUOTE class=replbq style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #1010ff 2px solid"> <div>Those legacy IO ports are NOT necessary mapped to the PCI IO address.<BR>Some VGA card does and some others come with some kind of remapping<BR>or offset. Your system chipset should have a way to map legacy VGA IO<BR>ports to memory address. You have to read the doc to the PPC chipset <BR>carefully to find it out.<BR></div></BLOCKQUOTE> <div>I have read the chipset doc and there is no such VGA support.</div> <div>But could you plse explain more on the different ways for VGA cards to map the VGA registers? Since the registers are located on a PCI agent (the graphic card), there must be a way to access them by generating PCI cycles?</div> <div>Thanks</div> <div>-jf simon</div> <div> </div><p>
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