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
|
// Basic x86 asm functions and function defs.
//
// Copyright (C) 2008 Kevin O'Connor <kevin@koconnor.net>
//
// This file may be distributed under the terms of the GNU GPLv3 license.
#include "ioport.h" // outb
static inline void irq_disable(void) {
asm volatile("cli": : :"memory");
}
static inline void irq_enable(void) {
asm volatile("sti": : :"memory");
}
static inline unsigned long irq_save(void)
{
unsigned long flags;
asm volatile("pushfl ; popl %0" : "=g" (flags));
irq_disable();
return flags;
}
static inline void irq_restore(unsigned long flags)
{
asm volatile("pushl %0 ; popfl" : : "g" (flags) : "memory", "cc");
}
#define DEBUGF(fmt, args...)
#define BX_PANIC(fmt, args...)
#define BX_INFO(fmt, args...)
static inline void
memset(void *s, int c, size_t n)
{
while (n)
((char *)s)[n--] = c;
}
static inline void
eoi_master_pic()
{
outb(PIC1_IRQ5, PORT_PIC1);
}
static inline void
eoi_both_pics()
{
outb(PIC2_IRQ13, PORT_PIC2);
eoi_master_pic();
}
// output.c
void bprintf(u16 action, const char *fmt, ...)
__attribute__ ((format (printf, 2, 3)));
struct bregs;
void __debug_enter(const char *fname, struct bregs *regs);
void __debug_exit(const char *fname, struct bregs *regs);
#define debug_enter(regs) \
__debug_enter(__func__, regs)
#define debug_exit(regs) \
__debug_exit(__func__, regs)
#define printf(fmt, args...) \
bprintf(0, fmt , ##args )
// kbd.c
void handle_15c2(struct bregs *regs);
|
