Specifications

58 AMD Geode™ GeodeROM Functional Specification
Non-Removable Media
32087C
6.3.3.2 Function 42h - Extended Read Sectors
Description:
Used to read zero or more blocks of data into host memory. If successful, Block_Count within the Disk_Address_Packet
contains the number of sectors successfully transferred.
Supports:
Fixed disks only.
Passed:
Returns:
Special Instructions:
None.
Related Functions:
None.
6.3.3.3 Function 43h - Extended Write Sectors
Description:
Used to write zero or more blocks of data into host memory. If successful, Block_Count within the Disk_Address_Packet
contains the number of sectors successfully transferred.
Supports:
Fixed disks only.
Passed:
Returns:
Special Instructions:
This function fails if the BIOS does not support Write w/Verify for the caller-specified device.
Related Functions:
None.
Parameter Description
AH 42h
DL Drive index
DS:SI Far pointer to caller-supplied data transfer buffer
Parameter Description
CF 0 = Success
1 = Failure
AH Status code: See AH in "Function 01h - Get Disk Subsystem Status" on page 46 for status.
Parameter Description
AH 43h
DL Drive index
DS:SI Far pointer to caller-supplied data transfer buffer
Parameter Description
CF 0 = Success
1 = Failure
AH Status code: See AH in "Function 01h - Get Disk Subsystem Status" on page 46.