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
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
|
/*
* Copyright (C) 2025 Danny Holman <dholman@gymli.org>
*
* This file is part of BoxOS, a free and open-source Unix-like operating
* system.
*
* BoxOS is free software; you can redistribute it and/or modify under the
* terms of the GNU General Public License as published by the Free Software
* Foundation; either version 2 of the License, or (at your option) any later
* version.
*
* BoxOS is distributed in the hope it will be useful, but WITHOUT ANY WARRANTY;
* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
* PARTICULAR PURPOSE. See the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along with
* BoxOS; if not, see <https://www.gnu.org/licenses/>.
*/
.section .text
.macro isr_err_stub num
.global isr_stub_\num
.type isr_stub_\num, @function
isr_stub_\num:
cli
pushq $\num
jmp isr_frame_asm
.endm
.macro isr_no_err_stub num
.global isr_stub_\num
.type isr_stub_\num, @function
isr_stub_\num:
cli
pushq $0
pushq $\num
jmp isr_frame_asm
.endm
.macro irq_stub num
.global irq_stub_\num
.type irq_stub_\num, @function
irq_stub_\num:
cli
pushq $0
pushq $\num+32
jmp isr_frame_asm
.endm
isr_frame_asm:
pushq %rax
pushq %rbx
pushq %rcx
pushq %rdx
pushq %rsi
pushq %rdi
pushq %r8
pushq %r9
pushq %r10
pushq %r11
pushq %r12
pushq %r13
pushq %r14
pushq %r15
movq %cr0, %rax
pushq %rax
movq %cr2, %rax
pushq %rax
movq %cr3, %rax
pushq %rax
movq %cr4, %rax
pushq %rax
movq %rsp, %rdi
cld
call isr_dispatch
popq %rax
movq %rax, %cr4
popq %rax
movq %rax, %cr3
popq %rax
movq %rax, %cr2
popq %rax
movq %rax, %cr0
popq %r15
popq %r14
popq %r13
popq %r12
popq %r11
popq %r10
popq %r9
popq %r8
popq %rdi
popq %rsi
popq %rdx
popq %rcx
popq %rbx
popq %rax
addq $16, %rsp
iretq
isr_no_err_stub 0
isr_no_err_stub 1
isr_no_err_stub 2
isr_no_err_stub 3
isr_no_err_stub 4
isr_no_err_stub 5
isr_no_err_stub 6
isr_no_err_stub 7
isr_err_stub 8
isr_no_err_stub 9
isr_err_stub 10
isr_err_stub 11
isr_err_stub 12
isr_err_stub 13
isr_err_stub 14
isr_no_err_stub 15
isr_no_err_stub 16
isr_err_stub 17
isr_no_err_stub 18
isr_no_err_stub 19
isr_no_err_stub 20
isr_err_stub 21
isr_no_err_stub 22
isr_no_err_stub 23
isr_no_err_stub 24
isr_no_err_stub 25
isr_no_err_stub 26
isr_no_err_stub 27
isr_no_err_stub 28
isr_err_stub 29
isr_err_stub 30
isr_no_err_stub 31
irq_stub 0
irq_stub 1
irq_stub 2
irq_stub 3
irq_stub 4
irq_stub 5
irq_stub 6
irq_stub 7
irq_stub 8
irq_stub 9
irq_stub 10
irq_stub 11
irq_stub 12
irq_stub 13
irq_stub 14
irq_stub 15
isr_no_err_stub 128
|
