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authorFranklin Wei <git@fwei.tk>2018-02-07 20:04:46 -0500
committerFranklin Wei <git@fwei.tk>2018-03-12 20:52:01 -0400
commit6039eb05ba6d82ef56f2868c96654c552d117bf9 (patch)
tree9db7016bcbf66cfdf7b9bc998d84c6eaff9c8378 /apps/plugins/sdl/src/audio/mint/SDL_mintaudio_it.S
parentef373c03b96b0be08babca581d9f10bccfd4931f (diff)
downloadrockbox-6039eb05ba6d82ef56f2868c96654c552d117bf9.tar.gz
rockbox-6039eb05ba6d82ef56f2868c96654c552d117bf9.zip
sdl: remove non-rockbox drivers
We never use any of these other drivers, so having them around just takes up space. Change-Id: Iced812162df1fef3fd55522b7e700acb6c3bcd41
Diffstat (limited to 'apps/plugins/sdl/src/audio/mint/SDL_mintaudio_it.S')
-rw-r--r--apps/plugins/sdl/src/audio/mint/SDL_mintaudio_it.S386
1 files changed, 0 insertions, 386 deletions
diff --git a/apps/plugins/sdl/src/audio/mint/SDL_mintaudio_it.S b/apps/plugins/sdl/src/audio/mint/SDL_mintaudio_it.S
deleted file mode 100644
index a2ecac4c65..0000000000
--- a/apps/plugins/sdl/src/audio/mint/SDL_mintaudio_it.S
+++ /dev/null
@@ -1,386 +0,0 @@
1/*
2 SDL - Simple DirectMedia Layer
3 Copyright (C) 1997-2012 Sam Lantinga
4
5 This library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Library General Public
7 License as published by the Free Software Foundation; either
8 version 2 of the License, or (at your option) any later version.
9
10 This library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Library General Public License for more details.
14
15 You should have received a copy of the GNU Library General Public
16 License along with this library; if not, write to the Free
17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
18
19 Sam Lantinga
20 slouken@libsdl.org
21*/
22
23/*
24 Audio interrupts
25
26 Patrice Mandin, Didier Méquignon
27 */
28
29 .text
30
31 .globl _SDL_MintAudio_Callback
32
33 .globl _SDL_MintAudio_XbiosInterrupt
34 .globl _SDL_MintAudio_XbiosInterruptMeasureClock
35 .globl _SDL_MintAudio_Dma8Interrupt
36 .globl _SDL_MintAudio_StfaInterrupt
37
38 .globl _SDL_MintAudio_mutex
39 .globl _SDL_MintAudio_audiobuf
40 .globl _SDL_MintAudio_numbuf
41 .globl _SDL_MintAudio_audiosize
42 .globl _SDL_MintAudio_clocktics
43 .globl _SDL_MintAudio_hasfpu
44
45 .globl _SDL_MintAudio_stfa
46
47/*
48 How it works:
49 - Audio is playing buffer #0 (resp. #1)
50 - We must calculate a sample in buffer #1 (resp. #0)
51 so we first call the callback to do it
52 - Then we swap the buffers
53*/
54
55#define savptr 0x4a2
56#define savamt 0x46
57
58/*--- Save/restore FPU context ---*/
59
60#if defined(__mcoldfire__)
61
62#define SAVE_FPU_CONTEXT \
63 lea sp@(-216),sp; \
64 fsave sp@; \
65 fmovel fpiar,sp@-; \
66 lea sp@(-64),sp; \
67 fmovemd fp0-fp7,sp@
68
69#define RESTORE_FPU_CONTEXT \
70 fmovemd sp@,fp0-fp7; \
71 lea sp@(64),sp; \
72 fmovel sp@+,fpiar; \
73 frestore sp@; \
74 lea sp@(216),sp
75
76#else
77
78#define SAVE_FPU_CONTEXT \
79 .chip 68k/68881; \
80 fsave sp@-; \
81 fmoveml fpcr/fpsr/fpiar,sp@-; \
82 fmovemx fp0-fp7,sp@-; \
83 .chip 68k
84
85#define RESTORE_FPU_CONTEXT \
86 .chip 68k/68881; \
87 fmovemx sp@+,fp0-fp7; \
88 fmoveml sp@+,fpcr/fpsr/fpiar; \
89 frestore sp@+; \
90 .chip 68k
91
92#endif
93
94/*--- Xbios interrupt vector to measure Falcon external clock ---*/
95
96_SDL_MintAudio_XbiosInterruptMeasureClock: /* 1 mS */
97#if defined(__mcoldfire__)
98 movel d0,sp@-
99
100 moveql #0,d0
101 btst d0,0xFFFF8901:w /* state DMA sound */
102#else
103 btst #0,0xFFFF8901:w /* state DMA sound */
104#endif
105 beqs SDL_MintAudio_EndIntMeasure
106 addql #1,_SDL_MintAudio_clocktics
107SDL_MintAudio_EndIntMeasure:
108#if defined(__mcoldfire__)
109 moveql #5,d0
110 bclr d0,0xFFFFFA0F:w /* Clear service bit */
111
112 movel sp@+,d0
113#else
114 bclr #5,0xFFFFFA0F:w /* Clear service bit */
115#endif
116 rte
117
118/*--- Xbios interrupt vector ---*/
119
120_SDL_MintAudio_XbiosInterrupt:
121#if defined(__mcoldfire__)
122 lea sp@(-60),sp
123 moveml d0-d7/a0-a6,sp@
124#else
125 moveml d0-d7/a0-a6,sp@-
126#endif
127
128 /* Reenable interrupts, so other interrupts can work */
129 movew #0x2300,sr
130
131 /* Clear service bit, so other MFP interrupts can work */
132#if defined(__mcoldfire__)
133 moveql #5,d0
134 bclr d0,0xfffffa0f:w
135#else
136 bclr #5,0xfffffa0f:w
137#endif
138
139 /* Check if we are not already running */
140 tstw _SDL_MintAudio_mutex
141 bne SDL_MintAudio_XbiosEnd
142
143#if defined(__mcoldfire__)
144 movew _SDL_MintAudio_mutex,d0
145 notl d0
146 movew d0,_SDL_MintAudio_mutex
147
148 movew _SDL_MintAudio_numbuf,d1
149 eorl #1,d1
150 movew d1,_SDL_MintAudio_numbuf
151#else
152 notw _SDL_MintAudio_mutex
153
154 /* Swap buffers */
155 eorw #1,_SDL_MintAudio_numbuf
156#endif
157
158 /* Save FPU if needed */
159 tstw _SDL_MintAudio_hasfpu
160 beqs SDL_MintAudio_Xbios_nofpu1
161 SAVE_FPU_CONTEXT
162SDL_MintAudio_Xbios_nofpu1:
163
164 /* Callback */
165 jsr _SDL_MintAudio_Callback
166
167 /* Restore FPU if needed */
168 tstw _SDL_MintAudio_hasfpu
169 beqs SDL_MintAudio_Xbios_nofpu2
170 RESTORE_FPU_CONTEXT
171SDL_MintAudio_Xbios_nofpu2:
172
173 /* Reserve space for registers */
174#if defined(__mcoldfire__)
175 movel #savamt,d0
176 subl d0,savptr
177#else
178 subl #savamt,savptr
179#endif
180
181 /* Set new buffer */
182
183 moveq #0,d0
184 movel _SDL_MintAudio_audiosize,d1
185
186 movew _SDL_MintAudio_numbuf,d0
187 lsll #2,d0
188 lea _SDL_MintAudio_audiobuf,a0
189 movel a0@(d0:l),a1
190
191 lea a1@(d1:l),a2
192
193 movel a2,sp@-
194 movel a1,sp@-
195 clrw sp@-
196 movew #131,sp@-
197 trap #14
198 lea sp@(12),sp
199
200 /* Restore registers space */
201#if defined(__mcoldfire__)
202 movel #savamt,d0
203 addl d0,savptr
204#else
205 addl #savamt,savptr
206#endif
207
208 clrw _SDL_MintAudio_mutex
209SDL_MintAudio_XbiosEnd:
210#if defined(__mcoldfire__)
211 moveml sp@,d0-d7/a0-a6
212 lea sp@(60),sp
213#else
214 moveml sp@+,d0-d7/a0-a6
215#endif
216 rte
217
218/*--- DMA 8 bits interrupt vector ---*/
219
220_SDL_MintAudio_Dma8Interrupt:
221#if defined(__mcoldfire__)
222 lea sp@(-16),sp
223 moveml d0-d1/a0-a1,sp@
224#else
225 moveml d0-d1/a0-a1,sp@-
226#endif
227
228 /* Reenable interrupts, so other interrupts can work */
229 movew #0x2300,sr
230
231 /* Clear service bit, so other MFP interrupts can work */
232#if defined(__mcoldfire__)
233 moveql #5,d0
234 bclr d0,0xfffffa0f:w
235#else
236 bclr #5,0xfffffa0f:w
237#endif
238 /* Check if we are not already running */
239 tstw _SDL_MintAudio_mutex
240 bne SDL_MintAudio_Dma8End
241
242#if defined(__mcoldfire__)
243 movew _SDL_MintAudio_mutex,d0
244 notl d0
245 movew d0,_SDL_MintAudio_mutex
246
247 movew _SDL_MintAudio_numbuf,d1
248 eorl #1,d1
249 movew d1,_SDL_MintAudio_numbuf
250#else
251 notw _SDL_MintAudio_mutex
252
253 /* Swap buffers */
254 eorw #1,_SDL_MintAudio_numbuf
255#endif
256
257 /* Save FPU if needed */
258 tstw _SDL_MintAudio_hasfpu
259 beqs SDL_MintAudio_Dma8_nofpu1
260 SAVE_FPU_CONTEXT
261SDL_MintAudio_Dma8_nofpu1:
262
263 /* Callback */
264 jsr _SDL_MintAudio_Callback
265
266 /* Restore FPU if needed */
267 tstw _SDL_MintAudio_hasfpu
268 beqs SDL_MintAudio_Dma8_nofpu2
269 RESTORE_FPU_CONTEXT
270SDL_MintAudio_Dma8_nofpu2:
271
272 /* Set new buffer */
273
274 moveq #0,d0
275
276 movew _SDL_MintAudio_numbuf,d0
277 lsll #2,d0
278 lea _SDL_MintAudio_audiobuf,a0
279 movel a0@(d0:l),d1
280
281 /* Modify DMA addresses */
282 lea 0xffff8900:w,a0
283
284 movel d1,d0
285
286 moveb d0,a0@(0x07) /* Start address */
287 lsrl #8,d0
288 moveb d0,a0@(0x05)
289 lsrl #8,d0
290 moveb d0,a0@(0x03)
291
292 addl _SDL_MintAudio_audiosize,d1
293
294 movel d1,d0
295
296 moveb d0,a0@(0x13) /* End address */
297 lsrl #8,d0
298 moveb d0,a0@(0x11)
299 lsrl #8,d0
300 moveb d0,a0@(0x0f)
301
302 clrw _SDL_MintAudio_mutex
303SDL_MintAudio_Dma8End:
304#if defined(__mcoldfire__)
305 moveml sp@,d0-d1/a0-a1
306 lea sp@(16),sp
307#else
308 moveml sp@+,d0-d1/a0-a1
309#endif
310 rte
311
312/*--- STFA interrupt vector ---*/
313
314STFA_SOUND_START = 6
315STFA_SOUND_END = STFA_SOUND_START+8
316
317_SDL_MintAudio_StfaInterrupt:
318 /* Reenable interrupts, so other interrupts can work */
319 movew #0x2300,sr
320
321 /* Check if we are not already running */
322 tstw _SDL_MintAudio_mutex
323
324#if defined(__mcoldfire__)
325 bne SDL_MintAudio_StfaEnd
326
327 lea sp@(-60),sp
328 moveml d0-d7/a0-a6,sp@
329
330 movew _SDL_MintAudio_mutex,d0
331 notl d0
332 movew d0,_SDL_MintAudio_mutex
333
334 movew _SDL_MintAudio_numbuf,d1
335 eorl #1,d1
336 movew d1,_SDL_MintAudio_numbuf
337#else
338 bnes SDL_MintAudio_StfaEnd
339
340 moveml d0-d7/a0-a6,sp@-
341
342 notw _SDL_MintAudio_mutex
343
344 /* Swap buffers */
345 eorw #1,_SDL_MintAudio_numbuf
346#endif
347
348 /* Save FPU if needed */
349 tstw _SDL_MintAudio_hasfpu
350 beqs SDL_MintAudio_Stfa_nofpu1
351 SAVE_FPU_CONTEXT
352SDL_MintAudio_Stfa_nofpu1:
353
354 /* Callback */
355 jsr _SDL_MintAudio_Callback
356
357 /* Restore FPU if needed */
358 tstw _SDL_MintAudio_hasfpu
359 beqs SDL_MintAudio_Stfa_nofpu2
360 RESTORE_FPU_CONTEXT
361SDL_MintAudio_Stfa_nofpu2:
362
363 /* Set new buffer */
364
365 moveq #0,d0
366 movel _SDL_MintAudio_stfa,a1
367
368 movew _SDL_MintAudio_numbuf,d0
369 lsll #2,d0
370 lea _SDL_MintAudio_audiobuf,a0
371 movel a0@(d0:l),d1
372
373 /* Modify STFA replay buffers */
374 movel d1,a1@(STFA_SOUND_START)
375 addl _SDL_MintAudio_audiosize,d1
376 movel d1,a1@(STFA_SOUND_END)
377
378#if defined(__mcoldfire__)
379 moveml sp@,d0-d7/a0-a6
380 lea sp@(60),sp
381#else
382 moveml sp@+,d0-d7/a0-a6
383#endif
384 clrw _SDL_MintAudio_mutex
385SDL_MintAudio_StfaEnd:
386 rte
generated by cgit v1.2.3 (git 2.39.1) at 2024-09-30 19:36:49 +0000