Specifications

AMD Geode™ GeodeROM Functional Specification 155
System Services
32087C
12.1.11 Function C0h - Get ROM Configuration
Description:
The ROM holds information about the system’s design. This function retrieves a pointer to the data.
Passed:
Returns:
Related Functions:
None.
12.1.12 Function C1h - Get EBDA Address
Description:
Returns a pointer to the system’s Extended BIOS Data Area.
Passed:
Returns:
Related Functions:
None.
Parameter Description
AX C0h
Parameter Description
CF 0 if operation completed successfully
1 if operation failed, AH contains error code
AH Error code:
86h = Unsupported function
ES:BX Pointer to the ROM table:
Offset Size Description Value
00h WORD Number of bytes following 08h
02h BYTE Model FCh
03h BYTE Submodel 01h
04h BYTE BIOS version 00h
05h BYTE Feature byte 1 74h
06h BYTE Feature byte 2 00h
07h BYTE Feature byte 3 00h
1Dh BYTE Feature byte 4 00h
Parameter Description
AH C1h
Parameter Description
CF 0 = Success
1 = Failure
ES Segment of the EBDA