--- old/r128_reg.h	Tue Oct  2 07:44:16 2001
+++ new/r128_reg.h	Sat Sep  7 14:54:01 2002
@@ -114,6 +114,8 @@
 
 #define INPAL_NEXT() INREG(R128_PALETTE_DATA)
 
+/* does PAL_SELECT need to be changed for dual-head? */
+
 #define PAL_SELECT(idx)                                                   \
     do {                                                                  \
 	CARD32 tmp = INREG(R128_DAC_CNTL);                                \
@@ -382,6 +384,9 @@
 #define R128_CRTC2_V_SYNC_STRT_WID        0x030c
 #define R128_CRTC2_V_TOTAL_DISP           0x0308
 #define R128_CRTC2_VLINE_CRNT_VLINE       0x0310
+
+/* are there some missing CRTC2 regs or is it just different from RADEON? */
+
 #define R128_CRTC8_DATA                   0x03d5 /* VGA, 0x3b5 */
 #define R128_CRTC8_IDX                    0x03d4 /* VGA, 0x3b4 */
 #define R128_CUR_CLR0                     0x026c