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
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
|
;; /*
;; * ---------------------------------------------------
;; *
;; * Copyright ZKA Technologies., all rights reserved.
;; *
;; * File: HalInterruptAPI.asm
;; * Purpose: Interrupt routing, redirect raw interrupts into their handlers.
;; *
;; * ---------------------------------------------------
;; */
[bits 64]
%define kInterruptId 0x21
%macro IntExp 1
global __NEW_INT_%1
__NEW_INT_%1:
cld
iretq
%endmacro
%macro IntNormal 1
global __NEW_INT_%1
__NEW_INT_%1:
cld
iretq
%endmacro
; This file handles the core interrupt table
; Last edited 31/01/24
global ke_handle_irq
global kInterruptVectorTable
extern _hal_handle_mouse
extern idt_handle_gpf
extern idt_handle_pf
extern ke_io_write
extern idt_handle_ud
section .text
IntNormal 0
IntNormal 1
IntNormal 2
IntNormal 3
IntNormal 4
IntNormal 5
;; Invalid opcode interrupt
__NEW_INT_6:
cli
push rax
mov rcx, rsp
call idt_handle_ud
pop rax
sti
iretq
IntNormal 7
IntExp 8
IntNormal 9
IntExp 10
IntExp 11
IntExp 12
__NEW_INT_13:
cli
push rax
mov rcx, rsp
call idt_handle_gpf
pop rax
sti
iretq
__NEW_INT_14:
cli
push rax
mov rcx, rsp
call idt_handle_pf
pop rax
sti
iretq
IntNormal 15
IntNormal 16
IntExp 17
IntNormal 18
IntNormal 19
IntNormal 20
IntNormal 21
IntNormal 22
IntNormal 23
IntNormal 24
IntNormal 25
IntNormal 26
IntNormal 27
IntNormal 28
IntNormal 29
IntExp 30
IntNormal 31
IntNormal 32
IntNormal 34
IntNormal 33
IntNormal 35
IntNormal 36
IntNormal 37
IntNormal 38
IntNormal 39
IntNormal 40
IntNormal 41
IntNormal 42
IntNormal 43
__NEW_INT_44:
cli
;; TODO: CoreEvents dispatch routine.
push rax
call _hal_handle_mouse
pop rax
sti
iretq
IntNormal 45
IntNormal 46
IntNormal 47
IntNormal 48
IntNormal 49
[extern hal_system_call_enter]
[extern hal_kernel_call_enter]
__NEW_INT_50:
cli
push rcx
push rdx
push rax
call hal_system_call_enter
pop rax
pop rdx
pop rcx
sti
iretq
__NEW_INT_51:
cli
push rcx
push rdx
push r8
push r9
push rax
call hal_kernel_call_enter
pop rax
pop r9
pop r8
pop rdx
pop rcx
sti
iretq
IntNormal 52
IntNormal 53
IntNormal 54
IntNormal 55
IntNormal 56
IntNormal 57
IntNormal 58
IntNormal 59
IntNormal 60
%assign i 61
%rep 195
IntNormal i
%assign i i+1
%endrep
section .text
[global hal_load_gdt]
hal_load_gdt:
lgdt [rcx]
push 0x08
lea rax, [rel rt_reload_segments]
push rax
retfq
rt_reload_segments:
mov ax, 0x10
mov ds, ax
mov es, ax
mov fs, ax
mov gs, ax
mov ss, ax
ret
global hal_load_idt
hal_load_idt:
lidt [rcx]
sti
ret
section .data
kInterruptVectorTable:
%assign i 0
%rep 256
dq __NEW_INT_%+i
%assign i i+1
%endrep
|
