alexvoste
40 lines
916 B
C
40 lines
916 B
C
#ifndef PORTS_H
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#define PORTS_H
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#include <stdint.h>
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static inline uint8_t inb(uint16_t port) {
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uint8_t result;
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asm volatile ("inb %1, %0" : "=a"(result) : "Nd"(port));
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return result;
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}
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static inline void outb(uint16_t port, uint8_t data) {
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asm volatile ("outb %0, %1" : : "a"(data), "Nd"(port));
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}
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static inline uint16_t inw(uint16_t port) {
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uint16_t result;
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asm volatile ("inw %1, %0" : "=a"(result) : "Nd"(port));
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return result;
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}
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static inline void outw(uint16_t port, uint16_t data) {
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asm volatile ("outw %0, %1" : : "a"(data), "Nd"(port));
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}
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static inline uint32_t inl(uint16_t port) {
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uint32_t result;
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asm volatile ("inl %1, %0" : "=a"(result) : "Nd"(port));
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return result;
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}
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static inline void outl(uint16_t port, uint32_t data) {
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asm volatile ("outl %0, %1" : : "a"(data), "Nd"(port));
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}
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static inline void io_wait(void) {
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outb(0x80, 0);
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}
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#endif |