arch/x86_64/hal/port.h


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#ifndef _JOVE_PORT_H
#define _JOVE_PORT_H 1

#include <stdint.h>

static inline uint8_t inb(uint16_t port)
{ uint8_t r; __asm__ volatile("inb %w1, %b0": "=a"(r): "Nd"(port): "memory"); return r; }

static inline void outb(uint16_t port, uint8_t v)
{ __asm__ volatile("outb %b0, %w1":: "a"(v), "Nd"(port): "memory"); }

#endif