Get Handle and Allocate Memory
|
Input |
Output |
|
AX |
43h |
|
Error
Code |
|
AX |
|
BX |
Number
of Pages Required (0 OK) |
|
|
BX |
|
CX |
|
|
|
|
CX |
|
DX |
|
|
Unique
EMM Handle |
DX |
Notifies the EMM that a program will be using extended memory,
obtains a handle, and allocates a certain number of logical pages
of extended memory to be controlled by that handle
Notes:
* Upward compatible with both EMS and EEMS 3.2; EMS and EEMS
3.2 do not allow the allocation of zero pages (returns error
status 89h). EMS 4.0 does allow zero pages to be requested
for a handle, allocating pages later using function 51h
* Your program must use this EMM handle as a parameter in any
function that requires it. You can use up to 255 handles.
The uppermost byte of the handle will be zero and cannot be
used by the application. |