S3 80x cursor fixes: #4208
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S3 80x cursor fixes: #4208
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1. The SPEA specific cards using the 801/5 chip apparently have an ID that's not 0xa0, rather, they either use 0xa2 or greater for the stepping. Fixes wrong colors in 800x600 modes and greater in 8bpp mode. 2. HWCursor addresses for 8bpp are now properly implemented if the 8bpp mode bit (CRTC3a bit 4) is checked, no longer relaying on GDCREG5 bit 6). Fixes garbage cursor in the SPEA 80x cards drivers (BigWin) using 8bpp mode.
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