DAC_CNTL           20 include/video/aty128.h #define DAC_CNTL				0x0058
DAC_CNTL          176 include/video/mach64.h #define DAC_CNTL		0x00C4	/* Dword offset 0_31 */
DAC_CNTL           68 include/video/radeon.h #define DAC_CNTL                               0x0058