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io.h (289B)

      1 #ifndef PC_IO_IO_H
      2 #define PC_IO_IO_H
      3 
      4 #define inb(port) \
      5 	({ \
      6 		uint8 ret; \
      7 		asm volatile ("inb %w1,%0" \
      8 			: "=a" (ret) \
      9 			: "i" (port) ); \
     10 		ret; \
     11 	})
     12 
     13 #define outb(port, val) \
     14 		asm volatile ("outb %b0,%w1" \
     15 			: \
     16 			: "a" (val), "i" (port) )
     17 
     18 typedef char EtatIo;
     19 
     20 #endif