Int 2F/AX=4A03h

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Windows95 - DOS KERNEL - (DE)ALLOCATE HMA MEMORY BLOCK

AX = 4A03h
CX = segment of block's owner???
DL = subfunction
00h allocate block
BX = number of bytes

Return:
DI=FFFFh if unable to allocate ES:DI -> allocated block 01h resize block ES:DI -> previously-allocated block BX = new size in bytes (must be less than original size???)

Return:
DI=FFFFh if unable to allocate ES:DI -> reallocated block

Note: The contents of the original block are NOT copied 02h free block??? ES:DI -> block to be freed

Note: In MS-DOS 7.x, function 4A02h is implemented by calling this function with DL=00h

See Also: AX=4A02h

Category: DOS Kernel - Int 2Fh - W

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