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AH = 2Ah BX = offset into control block at which to start swap CX = number of bytes to swap DX = segment/selector of control block obtained via AH=26h or AH=27h DS:SI -> buffer containing new data and to receive current data
Return:
CF clear if successful CF set on error AX = error code (see also #01680 at INT 21/AH=59h/BX=0000h) 05h access denied due to an invalid segment/selector
Note: The interrupts are disabled during the swap to prevent corruption
See Also: AH=26h - AH=27h - AH=28h - AH=29h
Category: Other Operating Systems - Int D4h - P
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