Int 1A Fn 6D04  - Snap.exe 3.2+ - "snap_copyfrom" - Copy Data From Reside  [N]

   AX = 6D04h
   STACK:  WORD    offset within SNAP data segment of source buffer
       WORD    segment of destination buffer
       WORD    offset of destination buffer
       WORD    number of bytes to copy

Return: AX = offset of byte after last one copied from source
   buffer filled
   STACK unchanged

See Also: AX=6C04h