CR35
i810_writeb(CR_INDEX_CGA, mmio, CR35);
i810_writeb(CR_INDEX_CGA, mmio, CR35);
i810_writeb(CR_INDEX_CGA, mmio, CR35);
viafb_write_reg_mask(CR35, VIACR, 0x10, BIT4);
cr35 = viafb_read_reg(VIACR, CR35) & 0x1F;
viafb_write_reg(CR35, VIACR, cr35);
{VIACR, CR35, 0xFF, 0x00},
{VIACR, CR35, 0xFF, 0x00},
{VIACR, CR35, 0xFF, 0x00},
{VIACR, CR35, 0xFF, 0x00},
{VIACR, CR35, 0xFF, 0x00},