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
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
|
// MIT License, Copyright (c) 2020 Marvin Borner
// This file is a wrapper around some CPU asm calls
#include <def.h>
u8 inb(u16 port)
{
u8 value;
__asm__ volatile("inb %1, %0" : "=a"(value) : "Nd"(port));
return value;
}
u16 inw(u16 port)
{
u16 value;
__asm__ volatile("inw %1, %0" : "=a"(value) : "Nd"(port));
return value;
}
u32 inl(u16 port)
{
u32 value;
__asm__ volatile("inl %1, %0" : "=a"(value) : "Nd"(port));
return value;
}
void insl(u16 port, void *addr, int n)
{
__asm__ volatile("cld; rep insl"
: "=D"(addr), "=c"(n)
: "d"(port), "0"(addr), "1"(n)
: "memory", "cc");
}
void outb(u16 port, u8 data)
{
__asm__ volatile("outb %0, %1" ::"a"(data), "Nd"(port));
}
void outw(u16 port, u16 data)
{
__asm__ volatile("outw %0, %1" ::"a"(data), "Nd"(port));
}
void outl(u16 port, u32 data)
{
__asm__ volatile("outl %0, %1" ::"a"(data), "Nd"(port));
}
void cli()
{
__asm__ volatile("cli");
}
void sti()
{
__asm__ volatile("sti");
}
void hlt()
{
__asm__ volatile("hlt");
}
void idle()
{
while (1)
hlt();
}
void loop()
{
cli();
idle();
}
|
