1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
|
#pragma once
#include <AK/Types.h>
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));
}
}
|