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Notes: May be masked by setting bit 1 on I/O port A1h. The default BIOS handler invokes INT 0A for compatibility, since the pin for IRQ2 on the PC expansion bus became the pin for IRQ9 on the AT expansion bus.. Under DESQview, only the INT 15h vector and BASIC segment address (the word at 0000h:0510h) may be assumed to be valid for the handler's process
See Also: INT 0A"IRQ2" - INT 59"IRQ9" - MEM 0040h:006Bh
Category: Hardware - Int 71h - I
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