30 lines
439 B
C
30 lines
439 B
C
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// console.c
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int pcgetc(int dev);
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void pcputc(int dev, int c);
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// print.c
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void putchar(int c);
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int getchar(void);
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void print(const char *fmt, ...);
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// a20.c
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void a20up(void);
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// long.c
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long getsecs(void);
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static __inline void
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outb(int port, u8 data)
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{
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__asm volatile("outb %0,%w1" : : "a" (data), "d" (port));
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}
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static __inline u8
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inb(int port)
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{
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u8 data;
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__asm volatile("inb %w1,%0" : "=a" (data) : "d" (port));
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return data;
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} |