Big-Endian Display Modes for R5xx Cards

Posted by Hans de Ruiter

Hardware acceleration for R5xx cards is still a work in progress. In the meantime I have discovered how to switch the card to performing byte-swapping in order to convert from big-endian to little-endian modes for R5xx cards (Radeon X1000 series). Previously, all modes were simply defined as being little-endian, thus byte-swapping had to be performed in software by Picasso96. This is now handled automatically by the R5xx chipset.

As yet, I do not have the details for performing the same task on R6xx series cards (Radeon HD 2000 and 3000 series). Hopefully this will change at some point. However, the graphics cards can operate fine without automated byte-swapping.

Comments (0) | 4 April 2009