46 lines
1.2 KiB
C
46 lines
1.2 KiB
C
#pragma once
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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 value;
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__asm__ volatile("inb %1, %0" : "=a"(value) : "Nd"(port));
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return value;
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}
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static inline void outb(uint16_t port, uint8_t value) {
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__asm__ volatile("outb %0, %1" : : "a"(value), "Nd"(port));
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}
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static inline uint16_t inw(uint16_t port) {
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uint16_t value;
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__asm__ volatile("inw %1, %0" : "=a"(value) : "Nd"(port));
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return value;
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}
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static inline void outw(uint16_t port, uint16_t value) {
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__asm__ volatile("outw %0, %1" : : "a"(value), "Nd"(port));
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}
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static inline uint32_t inl(uint16_t port) {
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uint32_t value;
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__asm__ volatile("inl %1, %0" : "=a"(value) : "Nd"(port));
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return value;
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}
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static inline void outl(uint16_t port, uint32_t value) {
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__asm__ volatile("outl %0, %1" : : "a"(value), "Nd"(port));
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}
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static inline void insw(uint16_t port, void *to, uint32_t count) {
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__asm__ volatile("rep insw" : "=D"(to), "=c"(count) : "d"(port), "D"(to), "c"(count) : "memory");
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}
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static inline void outsw(uint16_t port, const void *buffer, uint32_t count) {
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__asm__ volatile("rep outsw" : "=S"(buffer), "=c"(count) : "d"(port), "S"(buffer), "c"(count) : "memory");
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}
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static inline void io_wait() {
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outb(0x80, 0x00);
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}
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