American Megatrends Super Voyager LPX, User Manual

Page: 132 / 200

Super VGA Functions,
Continued
Chapter 4 VGA BIOS
126
Field Description
Bit 1 Rsvd field is reserved.
0 Rsvd field is reserved.
1 Rsvd field is usable by the application.
Bit 0 Color ramp is fixed/programmable
0 Color ramp is fixed
1 Color ramp is programmable
MapFuncAddr Specifies the address of the mapping function. The mapping function
can be invoked either through INT 10h Function 06h or by calling the
function directly. A direct call provides faster memory mapping than
INT 10h.
Notes: Version 1.1 and later VESA BIOS extensions zero all unused
fields in the Mode Information Block always returning 256
bytes to ensure upward compatibility with future versions,
since new fields will be designed such that values of zero
indicate nominal defaults or nonimplementation of optional
features. Applications should preinitialize the 256 byte buffer
before calling INT 10h Function 00h Return Super VGA Mode
Information.