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X-Hacker.org- Interrupts & Ports - Norton Guide
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Get address of critical error flag (INT 21h, 5D06h)
Entry:
AX = 5D06h
Return:
DS:SI = pointer to critical error flag
CX = ???
DX = ???
Note: This call also does a lot of other work in addition to
returning the pointer.
Note: Setting CritErr flag allows use of functions 50h/51h
from INT 28h under DOS 2.x by forcing use of correct
stack.
See Also: INT 21h, 34h INT 28h
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