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Int 31 Fn 0507 P - DPMI 1.0+ - Modify Page Attributes [E]
AX = 0507h
ESI = memory block handle
EBX = offset in memory block of first page
ECX = number of pages
ES:EDX -> array of WORDs with new page attributes (see AX=0506h)
Return: CF clear if successful
CF set on error
AX = error code (8001h,8002h,8013h,8014h,8021h,8023h,8025h)
(see AX=0000h)
ECX = number of pages which have been set
Notes: only supported by 32-bit DPMI hosts, but may be used by 16-bit clients
if EBX is not page-aligned, it will be rounded down
See Also: AX=0504h,AX=0506h,INT 21/AX=251Eh
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