Int 0A

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IRQ2 - Tandy 1000-series HARD DISK

Notes: This interrupt may be masked by setting bit 2 on I/O port 21h. The Tandy 1000, 1000A, and 1000HD use IRQ2 for the hard disk; the 1000EX, HX, RLX, RLX-HD, RLX-B, RLX-HD-B use IRQ5 instead; the 1000RL, RL-HD, SL, SL/2, TL, TL/2, and TL/3 are jumper-selectable for either IRQ2 or IRQ5 (default IRQ5); the 1000SX and TX are DIP-switch selectable for IRQ2 or IRQ5 (default IRQ2); the RSX and RSX-HD use IRQ14. Tandy systems which use IRQ2 for the hard disk interrupt use IRQ5 for vertical retrace.

See Also: INT 52"DESQview" - INT 5A"DoubleDOS" - INT 71

Category: Hardware - Int 0Ah - I

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