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Dos Tables
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8237A-5 DMA Controller
8259A Interrupt Controller
8253-5 Programmable Interval Timer
8255A-5 Programmable Peripheral Interface
Serial Communication (RS-232)
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Release logical record (INT 21h, D3h - Novell NetWare 4.0)
Entry:
AH = D3h
Return:
AL = error code