Format of EMS frame status record |
| Offset | Size | Description | ||||||
|---|---|---|---|---|---|---|---|---|
|
00h |
BYTE |
frame type (see #01517) | ||||||
|
01h |
BYTE |
owner handle (00h/FFh = none) from frame including UMB index to UMB frame descriptors | ||||||
|
02h |
WORD |
logical page for frame, 7FFFh if none, FFFFh if non-EMS frame | ||||||
|
04h |
BYTE |
EMS physical page number (FFh for non-EMS = don't care???) | ||||||
|
05h |
BYTE |
flags for non-EMS frames (00h for EMS frame) bits 0,1 for first 4K, bits 2,3 for second 4K, etc:
|