66 lines
1.4 KiB
C++
66 lines
1.4 KiB
C++
#pragma once
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#include <stdint.h>
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#include <stddef.h>
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namespace IO
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{
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static inline void outb(uint16_t port, uint8_t val)
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{
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asm volatile("outb %0, %1" : : "a"(val), "Nd"(port));
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}
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static inline uint8_t inb(uint16_t port)
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{
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uint8_t ret;
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asm volatile("inb %1, %0" : "=a"(ret) : "Nd"(port));
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return ret;
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}
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static inline void outw(uint16_t port, uint16_t val)
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{
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asm volatile("outw %0, %1" : : "a"(val), "Nd"(port));
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}
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static inline uint16_t inw(uint16_t port)
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{
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uint16_t ret;
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asm volatile("inw %1, %0" : "=a"(ret) : "Nd"(port));
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return ret;
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}
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static inline void outl(uint16_t port, uint32_t val)
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{
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asm volatile("outl %0, %1" : : "a"(val), "Nd"(port));
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}
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static inline uint32_t inl(uint16_t port)
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{
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uint32_t ret;
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asm volatile("inl %1, %0" : "=a"(ret) : "Nd"(port));
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return ret;
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}
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static inline void insb(uint16_t port, uint8_t* buffer, size_t count)
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{
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asm volatile("rep insb" : "+D"(buffer), "+c"(count), "=m"(*buffer) : "Nd"(port) : "memory");
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}
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static inline void insw(uint16_t port, uint16_t* buffer, size_t count)
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{
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asm volatile("rep insw" : "+D"(buffer), "+c"(count), "=m"(*buffer) : "Nd"(port) : "memory");
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}
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static inline void insl(uint16_t port, uint32_t* buffer, size_t count)
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{
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asm volatile("rep insl" : "+D"(buffer), "+c"(count), "=m"(*buffer) : "Nd"(port) : "memory");
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}
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static inline void io_wait()
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{
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outb(0x80, 0);
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}
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}
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