23 lines
531 B
C
23 lines
531 B
C
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#include "types.h"
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#define sti() __asm__ ("sti"::)
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#define cli() __asm__ ("cli"::)
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#define nop() __asm__ ("nop"::)
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#define iret() __asm__ ("iret"::)
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#define outb(port,value) \
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asm volatile ("outb %%al,%%dx"::"d" (port), "a" (value));
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#define outw(port,value) \
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asm volatile ("outb %%ax,%%dx"::"d" (port), "a" (value));
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#define inb(port) ({ \
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u8 _v; \
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asm volatile ("inb %%dx,%%al" : "=a" (_v) : "d" (port)); \
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_v; \
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})
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#define inw(port) ({ \
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u16 _v; \
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asm volatile ("inw %%dx,%%ax" : "=a" (_v) : "d"(port)); \
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_v; \
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})
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