Program Segment Prefix: Difference between revisions

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add note about the possibility to use reserved place to turn first FCB into extended without overwriting second FCB
Line 78:
| Far call to DOS (always contain INT 21h + RETF)
|-
| 53h-5Bh54h
| 92 bytes
| Reserved
|-
| 55h-5Bh
| 7 bytes
| Reserved (can be used to make first FCB into an extended FCB)
|-
| 5Ch-6Bh