-
Notifications
You must be signed in to change notification settings - Fork 0
/
Copy pathhook.asm
339 lines (285 loc) · 4.58 KB
/
hook.asm
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
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
; Stars always yellow
;.orga 0xAD548
; B 0xAD56C
;.orga 0x65FC4
; B 0x65Fd4
; Timer
; Centiseconds
.orga 0x9EA63
.db 0xB4
.orga 0x9E9C8
ADDIU AT, R0, 0xA
.orga 0x9EA00
MULT T9, AT
MFLO T1
ADDIU AT, R0, 3
DIV T1, AT
MFLO T2
SH T2, 0x24(SP)
.orga 0x4688
SB K1, 0xB25E(AT)
.orga 0x4694
NOP
; timer part
; show the timer
;.orga 0x6194
; ORI T2, T1, 0x40
; stop the timer condition
;.orga 0x8C7C
; SB R0, 0xEE(T5)
; dont reset timer between area
.orga 0x5150
NOP
.orga 0x5024
B 0x503C
; hide timer text
.orga 0x9EA24
nop
; +++Pause menu hooks
; 02011cc8 - 02011d50
.orga 0x978FC
lw at, 0x8004e004
jalr at
nop
b 0x97A38
nop
.orga 0x96838
lui t2, 0x0201
addiu t2, t2, 0x1cc8
.orga 0x968fc
lui t0, 0x0201
addiu t0, t0, 0x1d50
.orga 0x9688C
lw at, 0x8004e004
jalr at
nop
b 0x968D4
nop
.orga 0x96984
b 0x96AD8
nop
; +++ Music hook
.orga 0xd8068
addiu sp, sp, -0x18
sw ra, 0x14(sp)
lw at, 0x8004e008
jalr at
nop
lw ra, 0x14(sp)
jr ra
addiu sp, sp, 0x18
; +++ check_death_barrier hook
.orga 0xb5fc
.area 0x4C, 0x00
lw at, 0x8004e00c
jalr at
lw a0, 0x18(sp)
b 0xb64c
nop
.endarea
; +++ spawn_objects_from_info hook for level reset
.orga 0x58044
lw at, 0x8004e024
jalr at
lw a0, 0x2c(sp) ; spawnInfo
beq v0, r0, 0x581a8
; +++ set_object_respawn_info_bits hook for level reset
.orga 0x57e58
addiu sp, sp, -0x18
sw ra, 0x14(sp)
lw at, 0x8004e028
jalr at
nop
lw ra, 0x14(sp)
jr ra
addiu sp, sp, 0x18
; +++ geo_process_master_list switch hook for collision rendering
.orga 0x38fb0
jal renderhook
; +++ Main hook to load data in
.headersize 0x80245000
; notes about the spaces to put code in
; there is space in rom from 0x7cc6c0 to 0x800000
; there is space in ram from 0x80367500 to 0x80378700 (can fit in 17536 lines)
.definelabel code_rom, 0x7f1200; where your code goes in the rom
.definelabel code_ram, 0x8005c000-0xEE00; where your code goes in the ram
.definelabel code_end_copy, 0xEE00+code_rom
.orga 0x396c; here it copies code into the ram at start up
li a0, code_ram
li a1, code_rom
li.u a2, code_end_copy
jal 0x80278504
li.l a2, code_end_copy
jal execonce
nop
.orga 0xfd354
jal execeveryframe
nop
; FIXME: crashes on VC
;.orga 0xde270; responsible for running every VI frames
;b 0x803232a4
;sw t4, 0x7110(at)
;.skip 28
;lw ra, 0x1c(sp)
;lw s0, 0x18(sp)
;jr ra
;addiu sp, sp, 0x38
;lb s7, code_ram
;nop
;beqz s7, @@skip_vi_frames
;nop
;add s5, r0, ra
;jal execviframes
;nop
;@@skip_vi_frames:
;b 0x80323278
;lui at, 0x8036
.headersize (code_ram - code_rom)
.orga code_rom
execonce:
addiu sp, sp, -0x18
sw ra, 0x14(sp)
or a0, r0, r0
jal 0x80277ee0
lui a1, 0x8000
lui a0, 0x8034
lui a1, 0x8034
addiu a1, a1, 0xb044
addiu a0, a0, 0xb028
jal 0x803225a0
addiu a2, r0, 0x1
lw ra, 0x14(sp)
jr ra
addiu sp, sp, 0x18
nop
nop
nop
nop
nop
nop
nop
nop
.orga code_rom+0x100
execeveryframe:
addiu sp, sp, 0xffe8
sw ra, 0x14(sp)
lw at, 0x8004e000
jalr at
nop
addiu t6, r0, 0x1; don't get rid of those extra things. they are needed
lui at, 0x8039
lw ra, 0x14(sp)
jr ra
addiu sp, sp, 0x18
nop
nop
nop
nop
nop
nop
nop
nop
.orga code_rom+0x200
disable:
addiu sp, sp, 0xffe8
sw ra, 0x14(sp)
lw t1, 0x8004E018
li t0, 1146307148
beq t0, t1, nowriteback
NOP
; osWritebackDCache(0x8004e000, 0xE000)
li a0, 0x8004e000
jal 0x80325d20
li a1, 0xE000
li t0, 1146307148
sw t0, 0x8004E018
nowriteback:
lw ra, 0x14(sp)
jr ra
addiu sp, sp, 0x18
nop
nop
nop
nop
nop
nop
nop
nop
.orga code_rom+0x300
upgrade:
addiu sp, sp, 0xffe8
sw ra, 0x14(sp)
lw t1, 0x8004E018
li t0, 1431324498
beq t0, t1, noinval
NOP
; osInvalICache(0x8004e000, 0xE000)
li a0, 0x8004e000
jal 0x80324610
li a1, 0xE000
; osInvalDCache(0x8004e000, 0xE000)
li a0, 0x8004e000
jal 0x803243b0
li a1, 0xE000
li t0, 1431324498
sw t0, 0x8004E018
noinval:
lw ra, 0x14(sp)
jr ra
addiu sp, sp, 0x18
nop
nop
nop
nop
nop
nop
nop
nop
.orga code_rom+0x400
renderhook:
addiu sp, sp, -0x20
sw ra, 0x1c(sp)
sw r0, 0x14(sp)
lw t0, 0x8032def4
bnez t0, @@no_hook_pre
lw t2, 0x10(a0)
beq t2, r0, @@no_hook_pre
li t3, 1
sw t3, 0x14(sp)
@@no_hook_pre:
jal 0x8027ba00
nop
lw t0, 0x14(sp)
beq t0, r0, @@no_hook_call
lw at, 0x8004e02c
jalr at
nop
@@no_hook_call:
lw ra, 0x1c(sp)
jr ra
addiu sp, sp, 0x20
nop
nop
nop
nop
nop
nop
nop
nop
nop
;execviframes:
;addiu sp, sp, 0xffe8
;sw ra, 0x18(sp)
;sw s5, 0x14(sp)
;lw at, 0x8004e004
;jalr at
;nop
; -------------------------------------------------------------------------------------- every vi frame here
;lw ra, 0x18(sp)
;addiu sp, sp, 0x18
;jr ra
;lw ra, 0x14(sp)
;nop
;nop
;nop
;nop