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NorthNet Jetstream API - INSTALLATION CHECK

AH = F0h
DX = printer port (0-3)

Return:
AX = 0001h Jetstream present
else  non-Jetstream port

Note: NorthNet Jetstream is a high-performance DMA-driven parallel card able to drive printers at up to 80000 characters per second

Category: Printer Enhancements - Int 17h - N

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