Int 67/AH=5Bh

LIM EMS 4.0 - ALTERNATE MAP REGISTER SET - DMA REGISTERS

AH = 5Bh
AL = subfunction
05h allocate DMA register set
Return:
BL = DMA register set number, 00h if not supported
06h enable DMA on alternate map register set
BL = DMA register set number
DL = DMA channel number
07h disable DMA on alternate map register set
BL = DMA register set number
08h deallocate DMA register set
BL = DMA register set number

Return:
AH = status (00h,80h,81h,84h,8Fh,9Ah-9Fh,A3h,A4h) (see #03656)

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

Category: Memory Management - Int 67h - L

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