| AH |
= |
20h miscellaneous functions
| AL |
= |
00h get date
|
Return: |
CX |
= |
year |
| DH |
= |
month |
| DL |
= |
day |
|
| AL |
= |
01h get process ID and computer ID
|
Return: |
BX |
= |
current PSP segment |
| DX |
= |
active network machine number |
|
| AL |
= |
05h get file system info
| Call: |
ES:DI |
 |
16-byte info buffer |
| Return: |
| Offset |
Size |
Description |
| 00h |
2 BYTEs |
unused |
| 02h |
WORD |
number of SFTs (actually counts only the first
two file table arrays) |
| 04h |
WORD |
number of FCB table entries |
| 06h |
WORD |
number of proctected FCBs |
| 08h |
6 BYTEs |
unused |
| 0Eh |
WORD |
largest sector size supported |
|
|
| AL |
= |
06h get machine name
| Call: |
ES:DI |
|
18-byte buffer for name |
| Return: |
| Offset |
Size |
Description |
| 00h |
2 BYTEs |
unused |
| 02h |
WORD |
number of SFTs (actually counts only the first
two file table arrays) |
| 04h |
WORD |
number of FCB table entries |
| 06h |
WORD |
number of proctected FCBs |
| 08h |
6 BYTEs |
unused |
| 0Eh |
WORD |
largest sector size supported |
|
|
| AL |
= |
08h get sharing retry count
| Return: |
BX |
= |
sharing retry count |
|
| AL |
= |
other
|
|
| AH |
= |
21h get redirection state
| Call: |
BH |
= |
type
|
| Return: |
BH |
= |
state
|
|
| AH |
= |
22h ??? some sort of time calculation
|
| AH |
= |
23h ??? some sort of time calculation |
| AH |
= |
24h compare filenames
|
Call: |
DS:SI |
|
first ASCIZ filename |
| ES:DI |
|
second ASCIZ filename |
| Return: |
ZF |
- |
set if files are same ignoring case and / vs \ |
|
| AH |
= |
25h normalize filename
|
Call: |
DS:SI |
|
ASCIZ filename |
| ES:DI |
|
buffer for result |
| Return: |
filename uppercased, forward slashes changed
to backslashes |
|
| AH |
= |
26h get DOS stack
|
Return: |
DS:SI |
|
top of stack |
| CX |
= |
size of stack in bytes |
|
| AH |
= |
27h increment InDOS flag |
| AH |
= |
28h decrement InDOS flag |