Mercurial > sdl-ios-xcode
annotate src/audio/mint/SDL_mintaudio_it.S @ 662:66c02f83f5bf
Date: Sun, 27 Jul 2003 22:37:59 +0200
From: Max Horn
Subject: SDL whitespace patch
this patch is lowest priority: it only contains indention fixes. In
some places, instead of tabs, whitespaces where used for indention. But
of course that only "looks good" if you use the exact same tab width as
the author of those files. I tried to replace such cases with tabs for
a more uniform indention. I only did that for a few files.
So, no code changes in this, only whitespaces transformed.
author | Sam Lantinga <slouken@libsdl.org> |
---|---|
date | Mon, 28 Jul 2003 01:47:55 +0000 |
parents | 594422ab8f9f |
children | c4803992e09c |
rev | line source |
---|---|
644
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
1 /* |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
2 SDL - Simple DirectMedia Layer |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
3 Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002 Sam Lantinga |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
4 |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
5 This library is free software; you can redistribute it and/or |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
6 modify it under the terms of the GNU Library General Public |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
7 License as published by the Free Software Foundation; either |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
8 version 2 of the License, or (at your option) any later version. |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
9 |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
10 This library is distributed in the hope that it will be useful, |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
11 but WITHOUT ANY WARRANTY; without even the implied warranty of |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
13 Library General Public License for more details. |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
14 |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
15 You should have received a copy of the GNU Library General Public |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
16 License along with this library; if not, write to the Free |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
18 |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
19 Sam Lantinga |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
20 slouken@libsdl.org |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
21 */ |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
22 |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
23 /* |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
24 Audio interrupts |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
25 |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
26 Patrice Mandin |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
27 */ |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
28 |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
29 .text |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
30 |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
31 .globl _SDL_MintAudio_Callback |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
32 |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
33 .globl _SDL_MintAudio_GsxbInterrupt |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
34 .globl _SDL_MintAudio_EmptyGsxbInterrupt |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
35 .globl _SDL_MintAudio_XbiosInterrupt |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
36 .globl _SDL_MintAudio_Dma8Interrupt |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
37 .globl _SDL_MintAudio_StfaInterrupt |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
38 |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
39 .globl _SDL_MintAudio_mutex |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
40 .globl _SDL_MintAudio_audiobuf |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
41 .globl _SDL_MintAudio_numbuf |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
42 .globl _SDL_MintAudio_audiosize |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
43 |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
44 .globl _SDL_MintAudio_stfa |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
45 |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
46 /* |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
47 How it works: |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
48 - Audio is playing buffer #0 (resp. #1) |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
49 - We must calculate a sample in buffer #1 (resp. #0) |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
50 so we first call the callback to do it |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
51 - Then we swap the buffers |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
52 */ |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
53 |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
54 /*--- GSXB interrupt vector ---*/ |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
55 |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
56 .text |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
57 _SDL_MintAudio_GsxbInterrupt: |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
58 |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
59 /* Check if we are not already running */ |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
60 tstw _SDL_MintAudio_mutex |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
61 bnes _SDL_MintAudio_EmptyGsxbInterrupt |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
62 notw _SDL_MintAudio_mutex |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
63 |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
64 /* Swap buffers */ |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
65 moveml d0-d2/a0-a2,sp@- |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
66 |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
67 movel _SDL_MintAudio_numbuf,d0 |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
68 movel _SDL_MintAudio_audiobuf,a0 |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
69 eorl #1,d0 |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
70 beqs SDL_MintAudio_GsxbBuffer0 |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
71 movel _SDL_MintAudio_audiobuf+4,a0 |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
72 SDL_MintAudio_GsxbBuffer0: |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
73 movel d0,_SDL_MintAudio_numbuf |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
74 |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
75 /* Callback */ |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
76 movel a0,sp@- |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
77 jsr _SDL_MintAudio_Callback |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
78 movel sp@+,a0 |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
79 |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
80 /* Setbuffer xbios function */ |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
81 movel _SDL_MintAudio_audiosize,d1 |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
82 lea a0@(0,d1:l),a1 |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
83 |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
84 movel a1,sp@- |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
85 movel a0,sp@- |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
86 clrw sp@- |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
87 movew #131,sp@- |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
88 trap #14 |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
89 lea sp@(12),sp |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
90 |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
91 moveml sp@+,d0-d2/a0-a2 |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
92 |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
93 clrw _SDL_MintAudio_mutex |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
94 _SDL_MintAudio_EmptyGsxbInterrupt: |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
95 rts |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
96 |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
97 /*--- Xbios interrupt vector ---*/ |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
98 |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
99 _SDL_MintAudio_XbiosInterrupt: |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
100 |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
101 /* Reenable interrupts, so other interrupts can work */ |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
102 movew #0x2300,sr |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
103 |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
104 /* Clear service bit, so other MFP interrupts can work */ |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
105 bclr #5,0xfffffa0f:w |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
106 |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
107 /* Check if we are not already running */ |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
108 tstw _SDL_MintAudio_mutex |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
109 bnes SDL_MintAudio_XbiosEnd |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
110 notw _SDL_MintAudio_mutex |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
111 |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
112 /* Swap buffers */ |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
113 moveml d0-d2/a0-a2,sp@- |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
114 |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
115 movel _SDL_MintAudio_numbuf,d0 |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
116 movel _SDL_MintAudio_audiobuf,a0 |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
117 eorl #1,d0 |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
118 beqs SDL_MintAudio_XbiosBuffer0 |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
119 movel _SDL_MintAudio_audiobuf+4,a0 |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
120 SDL_MintAudio_XbiosBuffer0: |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
121 movel d0,_SDL_MintAudio_numbuf |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
122 |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
123 /* Callback */ |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
124 movel a0,sp@- |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
125 jsr _SDL_MintAudio_Callback |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
126 movel sp@+,a0 |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
127 |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
128 /* Setbuffer xbios function */ |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
129 movel _SDL_MintAudio_audiosize,d1 |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
130 lea a0@(0,d1:l),a1 |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
131 |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
132 movel a1,sp@- |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
133 movel a0,sp@- |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
134 clrw sp@- |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
135 movew #131,sp@- |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
136 trap #14 |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
137 lea sp@(12),sp |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
138 |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
139 moveml sp@+,d0-d2/a0-a2 |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
140 |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
141 clrw _SDL_MintAudio_mutex |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
142 SDL_MintAudio_XbiosEnd: |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
143 rte |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
144 |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
145 /*--- DMA 8 bits interrupt vector ---*/ |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
146 |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
147 _SDL_MintAudio_Dma8Interrupt: |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
148 |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
149 /* Reenable interrupts, so other interrupts can work */ |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
150 movew #0x2300,sr |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
151 |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
152 /* Clear service bit, so other MFP interrupts can work */ |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
153 bclr #5,0xfffffa0f:w |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
154 |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
155 /* Check if we are not already running */ |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
156 tstw _SDL_MintAudio_mutex |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
157 bnes SDL_MintAudio_Dma8End |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
158 notw _SDL_MintAudio_mutex |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
159 |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
160 /* Swap buffers */ |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
161 moveml d0-d1/a0-a1,sp@- |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
162 |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
163 movel _SDL_MintAudio_numbuf,d0 |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
164 movel _SDL_MintAudio_audiobuf,d1 |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
165 eorl #1,d0 |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
166 beqs SDL_MintAudio_Dma8Buffer0 |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
167 movel _SDL_MintAudio_audiobuf+4,d1 |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
168 SDL_MintAudio_Dma8Buffer0: |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
169 movel d0,_SDL_MintAudio_numbuf |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
170 |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
171 /* Callback */ |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
172 movel d1,sp@- |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
173 jsr _SDL_MintAudio_Callback |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
174 movel sp@+,d1 |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
175 |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
176 /* Modify DMA addresses */ |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
177 lea 0xffff8900:w,a0 |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
178 |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
179 moveb d1,a0@(0x07) /* Start address */ |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
180 rorl #8,d1 |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
181 moveb d1,a0@(0x05) |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
182 rorl #8,d1 |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
183 moveb d1,a0@(0x03) |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
184 swap d1 |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
185 |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
186 addl _SDL_MintAudio_audiosize,d1 |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
187 |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
188 moveb d1,a0@(0x13) /* End address */ |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
189 rorl #8,d1 |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
190 moveb d1,a0@(0x11) |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
191 rorl #8,d1 |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
192 moveb d1,a0@(0x0f) |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
193 |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
194 moveml sp@+,d0-d1/a0-a1 |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
195 |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
196 clrw _SDL_MintAudio_mutex |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
197 SDL_MintAudio_Dma8End: |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
198 rte |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
199 |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
200 /*--- STFA interrupt vector ---*/ |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
201 |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
202 STFA_SOUND_START = 6 |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
203 STFA_SOUND_END = STFA_SOUND_START+8 |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
204 |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
205 _SDL_MintAudio_StfaInterrupt: |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
206 |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
207 /* Reenable interrupts, so other interrupts can work */ |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
208 movew #0x2300,sr |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
209 |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
210 /* Check if we are not already running */ |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
211 tstw _SDL_MintAudio_mutex |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
212 bnes SDL_MintAudio_StfaEnd |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
213 notw _SDL_MintAudio_mutex |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
214 |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
215 /* Swap buffers */ |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
216 moveml d0-d1/a0-a1,sp@- |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
217 |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
218 movel _SDL_MintAudio_numbuf,d0 |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
219 movel _SDL_MintAudio_audiobuf,d1 |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
220 eorl #1,d0 |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
221 beqs SDL_MintAudio_StfaBuffer0 |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
222 movel _SDL_MintAudio_audiobuf+4,d1 |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
223 SDL_MintAudio_StfaBuffer0: |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
224 movel d0,_SDL_MintAudio_numbuf |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
225 |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
226 /* Callback */ |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
227 movel d1,sp@- |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
228 jsr _SDL_MintAudio_Callback |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
229 movel sp@+,d1 |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
230 |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
231 /* Modify STFA replay buffers */ |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
232 movel _SDL_MintAudio_stfa,a0 |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
233 movel d1,a0@(STFA_SOUND_START) |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
234 addl _SDL_MintAudio_audiosize,d1 |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
235 movel d1,a0@(STFA_SOUND_END) |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
236 |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
237 moveml sp@+,d0-d1/a0-a1 |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
238 |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
239 clrw _SDL_MintAudio_mutex |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
240 SDL_MintAudio_StfaEnd: |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
241 rte |
594422ab8f9f
Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff
changeset
|
242 |