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AX = 250Ah ES = segment selector in the Local Descriptor Table (LDT) of segment to modify EBX = physical base address of memory to map (multiple of 4K) ECX = number of physical 4K pages to map
Return:
CF clear if successful EAX = 32-bit offset in segment of mapped memory CF set on error EAX = error code 08h insufficient memory to create page tables 09h invalid segment selector
See Also: INT 31/AX=0800h
Category: DOS Extenders - Int 21h - P
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