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25 lines
477 B
25 lines
477 B
3 years ago
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#define outb(value,port) \
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__asm__ ("outb %%al,%%dx"::"a" (value),"d" (port))
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#define inb(port) ({ \
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unsigned char _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 outb_p(value,port) \
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__asm__ ("outb %%al,%%dx\n" \
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"\tjmp 1f\n" \
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"1:\tjmp 1f\n" \
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"1:"::"a" (value),"d" (port))
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#define inb_p(port) ({ \
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unsigned char _v; \
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__asm__ volatile ("inb %%dx,%%al\n" \
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"\tjmp 1f\n" \
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"1:\tjmp 1f\n" \
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"1:":"=a" (_v):"d" (port)); \
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_v; \
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})
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