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
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
|
.include "asm/macros.inc"
.include "global.inc"
.text
arm_func_start MIi_CheckDma0SourceAddress
MIi_CheckDma0SourceAddress:
stmdb sp!, {lr}
sub sp, sp, #0x4
cmp r0, #0x0
addne sp, sp, #0x4
ldmneia sp!, {lr}
bxne lr
cmp r3, #0x0
and r0, r1, #0xff000000
beq _020CD8A4
cmp r3, #0x800000
subeq r1, r1, r2
b _020CD8A8
_020CD8A4:
add r1, r1, r2
_020CD8A8:
cmp r0, #0x4000000
beq _020CD8D4
cmp r0, #0x8000000
bhs _020CD8D4
and r0, r1, #0xff000000
cmp r0, #0x4000000
beq _020CD8D4
cmp r0, #0x8000000
addcc sp, sp, #0x4
ldmccia sp!, {lr}
bxcc lr
_020CD8D4:
bl OS_Terminate
add sp, sp, #0x4
ldmia sp!, {lr}
bx lr
arm_func_start MIi_CheckAnotherAutoDMA
MIi_CheckAnotherAutoDMA: ; 0x020CD8E4
stmdb sp!, {r4-r7,lr}
sub sp, sp, #0x4
ldr r4, _020CD994 ; =0x040000B8
mov r7, r0
mov r6, r1
mov r5, #0x0
_020CD8FC:
cmp r5, r7
beq _020CD978
ldr r1, [r4, #0x0]
ands r0, r1, #0x80000000
beq _020CD978
and r0, r1, #0x38000000
cmp r0, r6
beq _020CD978
cmp r0, #0x8000000
bne _020CD92C
cmp r6, #0x10000000
beq _020CD978
_020CD92C:
cmp r0, #0x10000000
bne _020CD93C
cmp r6, #0x8000000
beq _020CD978
_020CD93C:
cmp r0, #0x18000000
beq _020CD974
cmp r0, #0x20000000
beq _020CD974
cmp r0, #0x28000000
beq _020CD974
cmp r0, #0x30000000
beq _020CD974
cmp r0, #0x38000000
beq _020CD974
cmp r0, #0x8000000
beq _020CD974
cmp r0, #0x10000000
bne _020CD978
_020CD974:
bl OS_Terminate
_020CD978:
add r5, r5, #0x1
cmp r5, #0x3
add r4, r4, #0xc
blt _020CD8FC
add sp, sp, #0x4
ldmia sp!, {r4-r7,lr}
bx lr
.balign 4
_020CD994: .word 0x040000B8
arm_func_start MI_StopDma
MI_StopDma: ; 0x020CD998
stmdb sp!, {r4,lr}
mov r4, r0
bl OS_DisableInterrupts
mov r1, #0x6
mul r1, r4, r1
add r1, r1, #0x5
mov r1, r1, lsl #0x1
add r1, r1, #0x4000000
ldrh r2, [r1, #0xb0]
cmp r4, #0x0
bic r2, r2, #0x3a00
strh r2, [r1, #0xb0]
ldrh r2, [r1, #0xb0]
bic r2, r2, #0x8000
strh r2, [r1, #0xb0]
ldrh r2, [r1, #0xb0]
ldrh r1, [r1, #0xb0]
bne _020CDA08
mov r1, #0xc
mul r12, r4, r1
ldr r1, _020CDA14 ; =0x040000B0
add r2, r12, #0x4000000
mov r3, #0x0
str r3, [r2, #0xb0]
add r2, r12, r1
ldr r1, _020CDA18 ; =0x81400001
str r3, [r2, #0x4]
str r1, [r2, #0x8]
_020CDA08:
bl OS_RestoreInterrupts
ldmia sp!, {r4,lr}
bx lr
.balign 4
_020CDA14: .word 0x040000B0
_020CDA18: .word 0x81400001
arm_func_start MI_WaitDma
MI_WaitDma:
stmdb sp!, {r4,lr}
mov r4, r0
bl OS_DisableInterrupts
mov r1, #0x3
mul r2, r4, r1
ldr r1, _020CDA84 ; =0x040000B0
add r2, r2, #0x2
add r2, r1, r2, lsl #0x2
_020CDA3C:
ldr r1, [r2, #0x0]
ands r1, r1, #0x80000000
bne _020CDA3C
cmp r4, #0x0
bne _020CDA78
mov r1, #0xc
mul r12, r4, r1
ldr r1, _020CDA84 ; =0x040000B0
add r2, r12, #0x4000000
mov r3, #0x0
str r3, [r2, #0xb0]
add r2, r12, r1
ldr r1, _020CDA88 ; =0x81400001
str r3, [r2, #0x4]
str r1, [r2, #0x8]
_020CDA78:
bl OS_RestoreInterrupts
ldmia sp!, {r4,lr}
bx lr
.balign 4
_020CDA84: .word 0x040000B0
_020CDA88: .word 0x81400001
arm_func_start MI_DmaCopy32Async
MI_DmaCopy32Async: ; 0x020CDA8C
stmdb sp!, {r4-r8,lr}
mov r5, r3
mov r6, r2
mov r2, r5
mov r3, #0x0
mov r8, r0
mov r7, r1
ldr r4, [sp, #0x18]
bl MIi_CheckDma0SourceAddress
_020CDAB0:
cmp r5, #0x0
bne _020CDAD4
cmp r4, #0x0
ldmeqia sp!, {r4-r8, lr}
bxeq lr
ldr r0, [sp, #0x1C]
blx r4
ldmia sp!, {r4-r8, lr}
bx lr
_020CDAD4:
mov r0, r8
bl MI_WaitDma
cmp r4, #0x0
beq _020CDB14
ldr r2, [sp, #0x1C]
mov r0, r8
mov r1, r4
bl OSi_EnterDmaCallback
mov r3, r5, lsr #0x2
mov r0, r8
mov r1, r7
mov r2, r6
orr r3, r3, #0xc4000000
bl MIi_DmaSetParams
ldmia sp!, {r4-r8, lr}
bx lr
_020CDB14:
mov r3, r5, lsr #0x2
mov r0, r8
mov r1, r7
mov r2, r6
orr r3, r3, #0x84000000
bl MIi_DmaSetParams
ldmia sp!, {r4-r8, lr}
bx lr
arm_func_start MI_DmaFill32Async
MI_DmaFill32Async: ; 0x020CDB34
stmdb sp!, {r4-r8,lr}
movs r4, r3
mov r7, r0
mov r6, r1
mov r5, r2
ldr r8, [sp, #0x18]
bne _020CDB6C
cmp r8, #0x0
ldmeqia sp!, {r4-r8,lr}
bxeq lr
ldr r0, [sp, #0x1c]
blx r8
ldmia sp!, {r4-r8,lr}
bx lr
_020CDB6C:
bl MI_WaitDma
_020CDB70:
cmp r8, #0x0
beq _020CDBC8
ldr r2, [sp, #0x1C]
mov r0, r7
mov r1, r8
bl OSi_EnterDmaCallback
bl OS_DisableInterrupts
mov r3, r4, lsr #2
ldr r1, _20CDC08
mov r2, r7, lsl #2
add r2, r2, #0x4000000
str r5, [r2, #0xE0]
mov r4, r0
add r1, r1, r7, lsl #0x2
mov r0, r7
mov r2, r6
orr r3, r3, #0xc5000000
bl MIi_DmaSetParams_noInt
mov r0, r4
bl OS_RestoreInterrupts
ldmia sp!, {r4-r8,lr}
bx lr
_020CDBC8:
bl OS_DisableInterrupts
ldr r1, _20CDC08
mov r2, r7, lsl #0x2
mov r3, r4, lsr #0x2
mov r4, r0
add ip, r2, #0x4000000
mov r0, r7
mov r2, r6
add r1, r1, r7, lsl #0x2
orr r3, r3, #0x85000000
str r5, [ip, #0xE0]
bl MIi_DmaSetParams_noInt
mov r0, r4
bl OS_RestoreInterrupts
ldmia sp!, {r4-r8,lr}
bx lr
_20CDC08: .word 0x040000E0
arm_func_start MI_DmaCopy16
MI_DmaCopy16: ; 0x020CDC0C
stmdb sp!, {r4-r8,lr}
movs r5, r3
mov r8, r0
mov r7, r1
mov r6, r2
ldmeqia sp!, {r4-r8,lr}
bxeq lr
mov r2, r5
mov r3, #0x0
bl MIi_CheckDma0SourceAddress
mov r0, #0x3
mul r1, r8, r0
ldr r0, _020CDC80 ; =0x040000B0
add r1, r1, #0x2
add r4, r0, r1, lsl #0x2
_020CDC48:
ldr r0, [r4, #0x0]
ands r0, r0, #0x80000000
bne _020CDC48
mov r3, r5, lsr #0x1
mov r0, r8
mov r1, r7
mov r2, r6
orr r3, r3, #0x80000000
bl MIi_DmaSetParams_wait
_020CDC6C:
ldr r0, [r4]
ands r0, r0, #0x80000000
bne _020CDC6C
ldmia sp!, {r4-r8,lr}
bx lr
_020CDC80: .word 0x040000B0
arm_func_start MI_DmaCopy32
MI_DmaCopy32: ; 0x020CDC84
stmdb sp!, {r4-r8,lr}
mov r5, r3
mov r6, r2
mov r2, r5
mov r3, #0x0
mov r8, r0
mov r7, r1
bl MIi_CheckDma0SourceAddress
_020CDCA4:
cmp r5, #0x0
ldmeqia sp!, {r4-r8,lr}
bxeq lr
mov r0, #0x3
mul r1, r8, r0
ldr r0, _020CDCFC
add r1, r1, #0x2
add r4, r0, r1, lsl #0x2
_020CDCC4:
ldr r0, [r4]
ands r0, r0, #0x80000000
bne _020CDCC4
mov r3, r5, lsr #0x2
mov r0, r8
mov r1, r7
mov r2, r6
orr r3, r3, #0x84000000
bl MIi_DmaSetParams_wait
_020CDCE8:
ldr r0, [r4]
ands r0, r0, #0x80000000
bne _020CDCE8
ldmia sp!, {r4-r8,lr}
bx lr
_020CDCFC: .word 0x040000B0
arm_func_start MI_DmaFill32
MI_DmaFill32: ; 0x020CDD00
stmdb sp!, {r4-r8,lr}
movs r4, r3
mov r8, r0
mov r7, r1
mov r6, r2
ldmeqia sp!, {r4-r8,lr}
bxeq lr
mov r0, #0x3
mul r1, r8, r0
ldr r0, _020CDD88 ; =0x040000B0
add r1, r1, #0x2
add r5, r0, r1, lsl #0x2
_020CDD30:
ldr r0, [r5, #0x0]
ands r0, r0, #0x80000000
bne _020CDD30
bl OS_DisableInterrupts
ldr r1, _020CDD8C ; =0x040000E0
mov r2, r8, lsl #0x2
mov r3, r4, lsr #0x2
mov r4, r0
add r12, r2, #0x4000000
mov r0, r8
mov r2, r7
add r1, r1, r8, lsl #0x2
orr r3, r3, #0x85000000
str r6, [r12, #0xe0]
bl MIi_DmaSetParams_wait_noInt
mov r0, r4
bl OS_RestoreInterrupts
_020CDD74:
ldr r0, [r5]
ands r0, r0, #0x80000000
bne _020CDD74
ldmia sp!, {r4-r8,lr}
bx lr
_020CDD88: .word 0x040000B0
_020CDD8C: .word 0x040000E0
|
