35 lines
543 B
C
35 lines
543 B
C
#ifndef IO_H_
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#define IO_H_
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#include <k/types.h>
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static inline void outb(u16 port, u8 val)
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{
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asm volatile ("outb %0, %1" : /* No output */ : "a"(val), "d"(port));
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}
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static inline u8 inb(u16 port)
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{
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u8 res;
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asm volatile ("inb %1, %0" : "=&a"(res) : "d"(port));
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return res;
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}
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static inline void outw(u16 port, u16 val)
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{
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asm volatile ("outw %0, %1" : /* No output */ : "a"(val), "d"(port));
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}
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static inline u16 inw(u16 port)
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{
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u16 res;
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asm volatile ("inw %1, %0" : "=&a"(res) : "d"(port));
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return res;
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}
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#endif /* !IO_H_ */
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