Format of COMBI-disk data packet |
| Offset | Size | Description | ||||||
|---|---|---|---|---|---|---|---|---|
|
00h |
6 BYTEs |
ASCIZ signature "COMBI" | ||||||
|
06h |
WORD |
version
|
||||||
|
08h |
BYTE |
current options | ||||||
|
09h |
BYTE |
sectors per allocation block | ||||||
|
0Ah |
WORD |
maximum buffer in KB | ||||||
|
0Ch |
WORD |
current buffer in KB (less than max if XMS memory being lent) | ||||||
|
0Eh |
WORD |
total number of allocation blocks | ||||||
|
10h |
WORD |
current number of allocation blocks | ||||||
|
12h |
WORD |
number of blocks being used by RAM disk | ||||||
|
14h |
WORD |
number of blocks being used by cache or unused | ||||||
|
16h |
WORD |
number of dirty cache blocks | ||||||
|
18h |
WORD |
number of blocks which could not be written out due to errors | ||||||
|
1Ah |
WORD |
total number of read requests | ||||||
|
1Ch |
WORD |
total number of sectors read | ||||||
|
1Eh |
WORD |
number of BIOS read requests (cache misses) | ||||||
|
20h |
WORD |
number of sectors read via BIOS (cache misses) | ||||||
|
22h |
WORD |
total number of write requests | ||||||
|
24h |
WORD |
total number of sectors written | ||||||
|
26h |
WORD |
number of BIOS write requests | ||||||
|
28h |
WORD |
number of sectors written via BIOS | ||||||
|
2Ah |
WORD |
number of RAM disk read requests | ||||||
|
2Ch |
WORD |
number of sectors read from RAM disk | ||||||
|
2Eh |
WORD |
number of RAM disk write requests | ||||||
|
30h |
WORD |
number of sectors written to RAM disk |