#pragma once #include namespace IO { inline byte in8(word port) { byte value; asm volatile("inb %1, %0" : "=a"(value) : "Nd"(port)); return value; } inline word in16(word port) { word value; asm volatile("inw %1, %0" : "=a"(value) : "Nd"(port)); return value; } inline dword in32(word port) { dword value; asm volatile("inl %1, %0" : "=a"(value) : "Nd"(port)); return value; } inline void repeated_in16(word port, byte* buffer, int buffer_size) { asm volatile("rep insw" : "+D"(buffer), "+c"(buffer_size) : "d"(port) : "memory"); } inline void out8(word port, byte value) { asm volatile("outb %0, %1" ::"a"(value), "Nd"(port)); } inline void out16(word port, word value) { asm volatile("outw %0, %1" ::"a"(value), "Nd"(port)); } inline void out32(word port, dword value) { asm volatile("outl %0, %1" ::"a"(value), "Nd"(port)); } inline void repeated_out16(word port, const byte* data, int data_size) { asm volatile("rep outsw" : "+S"(data), "+c"(data_size) : "d"(port)); } }