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Copyright 1991 David Jurgens |
INT 21,1A - Set Disk Transfer Address (DTA)
AH = 1A
DS:DX = pointer to disk transfer address (DTA)
returns nothing
- specifies the disk transfer address to DOS
- DTA cannot overlap 64K segment boundary
- offset 80h in the PSP is a 128 byte default DTA supplied
by DOS upon program load
- use of the DTA provided by DOS will result in the loss
of the program command tail which also occupies the 128
bytes starting at offset 80h of the PSP
- see INT 21,2F
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| Esc or Alt-X to exit |
int 21,1a |
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