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/xen-4.10.0-shim-comet/xen/arch/x86/
A Di8259.c82 #define cached_A1 (__byte(1,cached_irq_mask)) macro
103 outb(cached_A1,0xA1); in _disable_8259A_irq()
124 outb(cached_A1,0xA1); in enable_8259A_irq()
161 outb(cached_A1, 0xA1); in unmask_8259A()
238 outb(cached_A1,0xA1); in _mask_and_ack_8259A_irq()
323 outb(cached_A1, 0xA1); /* restore slave IRQ mask */ in init_8259A()

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