GetMaskTable
GetMaskTable returns a pointer to a ROM table containing the following useful masks:
0x0000, 0x8000, 0xC000, 0xE000 Table of 16 right masks
0xF000, 0xF800, 0xFC00, 0xFE00
0xFF00, 0xFF80, 0xFFC0, 0xFFE0
0xFFF0, 0xFFF8, 0xFFFC, 0xFFFE
0xFFFF, 0x7FFF, 0x3FFF, 0x1FFF Table of 16 left masks
0x0FFF, 0x07FF, 0x03FF, 0x01FF
0x00FF, 0x007F, 0x003F, 0x001F
0X000F, 0x0007, 0x0003, 0x0001
0x8000, 0x4000, 0x2000, 0x1000 Table of 16 bit masks
0x0800, 0x0400, 0x0200, 0x0100
0x0080, 0x0040, 0x0020, 0x0010
0x0008, 0x0004, 0x0002, 0x0001
Returns: a pointer to a table of 48 masks