26 lines
772 B
C
26 lines
772 B
C
#pragma once
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static inline unsigned char port_byte_in(unsigned short port) {
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unsigned char result;
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__asm__("in %%dx, %%al" : "=a" (result) : "d" (port));
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return result;
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}
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static inline unsigned short port_word_in(unsigned short port) {
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unsigned short result;
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__asm__("in %%dx, %%ax" : "=a" (result) : "d" (port));
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return result;
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}
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static inline void port_byte_out(unsigned short port, unsigned char data) {
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__asm__("outb %%al, %%dx" : : "a" (data), "d" (port));
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}
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static inline void port_word_out(unsigned short port, unsigned short data) {
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__asm__("outw %%ax, %%dx" : : "a" (data), "d" (port));
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}
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static inline void port_long_out(unsigned short port, unsigned int data) {
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__asm__("outl %%eax, %%dx" : : "a" (data), "d" (port));
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}
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