Alternate Map Register Set - DMA Registers - Get Alternate Map Register Set  

Input

Output

AX

5Bh 00h Error Code   AX

BX

  New Set Number   Cur Set Number BX

CX

        CX

ES:DI

 Ptr to Context Save Area Ptr to Map Reg Context Save Area ES:DI
     Notes:

     *  This call is for  use  by operating systems only, and can be
        enabled or disabled at any time by the operating system

     *  This set of functions  performs  the  same functions at EEMS
        function 6Ah subfunctions 04h and 05h ("function 43").


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