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annotate src/audio/mint/SDL_mintaudio_it.S @ 3278:b2a3cbb9ec08

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This is waaaaay outdated. :)
author Sam Lantinga <slouken@libsdl.org>
date Sat, 19 Sep 2009 07:33:15 +0000
parents 99210400e8b9
children
rev   line source
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2009 Sam Lantinga
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4
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5 This library is free software; you can redistribute it and/or
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6 modify it under the terms of the GNU Library General Public
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7 License as published by the Free Software Foundation; either
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8 version 2 of the License, or (at your option) any later version.
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9
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10 This library is distributed in the hope that it will be useful,
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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13 Library General Public License for more details.
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14
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15 You should have received a copy of the GNU Library General Public
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16 License along with this library; if not, write to the Free
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17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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18
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19 Sam Lantinga
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20 slouken@libsdl.org
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21 */
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22
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23 /*
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24 Audio interrupts
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25
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26 Patrice Mandin, Didier Méquignon
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27 */
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28
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29 .text
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30
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31 .globl _SDL_MintAudio_Callback
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32
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33 .globl _SDL_MintAudio_XbiosInterrupt
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34 .globl _SDL_MintAudio_XbiosInterruptMeasureClock
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35 .globl _SDL_MintAudio_Dma8Interrupt
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36 .globl _SDL_MintAudio_StfaInterrupt
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37
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38 .globl _SDL_MintAudio_mutex
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39 .globl _SDL_MintAudio_audiobuf
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40 .globl _SDL_MintAudio_numbuf
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41 .globl _SDL_MintAudio_audiosize
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42 .globl _SDL_MintAudio_clocktics
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43 .globl _SDL_MintAudio_hasfpu
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44
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45 .globl _SDL_MintAudio_stfa
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46
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47 /*
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48 How it works:
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49 - Audio is playing buffer #0 (resp. #1)
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50 - We must calculate a sample in buffer #1 (resp. #0)
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51 so we first call the callback to do it
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52 - Then we swap the buffers
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53 */
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54
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55 #define savptr 0x4a2
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56 #define savamt 0x46
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57
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58 /*--- Xbios interrupt vector to measure Falcon external clock ---*/
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59
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60 _SDL_MintAudio_XbiosInterruptMeasureClock: /* 1 mS */
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61
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62 btst #0,0xFFFF8901:w /* state DMA sound */
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63 beqs SDL_MintAudio_EndIntMeasure
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64 addql #1,_SDL_MintAudio_clocktics
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65 SDL_MintAudio_EndIntMeasure:
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66 bclr #5,0xFFFFFA0F:w /* Clear service bit */
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67 rte
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68
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69 /*--- Xbios interrupt vector ---*/
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70
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71 _SDL_MintAudio_XbiosInterrupt:
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72
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73 /* Reenable interrupts, so other interrupts can work */
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74 movew #0x2300,sr
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75
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76 /* Clear service bit, so other MFP interrupts can work */
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77 bclr #5,0xfffffa0f:w
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78
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79 /* Check if we are not already running */
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80 tstw _SDL_MintAudio_mutex
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81 bne SDL_MintAudio_XbiosEnd
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82 notw _SDL_MintAudio_mutex
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83
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84 /* Swap buffers */
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85 eorw #1,_SDL_MintAudio_numbuf
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86
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87 moveml d0-d7/a0-a6,sp@-
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88
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89 /* Save FPU if needed */
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90 tstw _SDL_MintAudio_hasfpu
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91 beqs SDL_MintAudio_Xbios_nofpu1
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92 .chip 68060
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93 fsave sp@-
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94 fmoveml fpcr/fpsr/fpiar,sp@-
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95 fmovemx fp0-fp7,sp@-
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96 .chip 68000
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97 SDL_MintAudio_Xbios_nofpu1:
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98
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99 /* Callback */
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100 jsr _SDL_MintAudio_Callback
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101
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102 /* Restore FPU if needed */
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103 tstw _SDL_MintAudio_hasfpu
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104 beqs SDL_MintAudio_Xbios_nofpu2
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105 .chip 68060
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106 fmovemx sp@+,fp0-fp7
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107 fmoveml sp@+,fpcr/fpsr/fpiar
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108 frestore sp@+
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109 .chip 68000
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110 SDL_MintAudio_Xbios_nofpu2:
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111
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112 /* Reserve space for registers */
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113 subl #savamt,savptr
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114
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115 /* Set new buffer */
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116
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117 moveq #0,d0
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118 movel _SDL_MintAudio_audiosize,d1
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119
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120 movew _SDL_MintAudio_numbuf,d0
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121 lsll #2,d0
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122 lea _SDL_MintAudio_audiobuf,a0
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123 movel a0@(d0:l),a1
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124
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125 lea a1@(d1:l),a2
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126
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127 movel a2,sp@-
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128 movel a1,sp@-
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129 clrw sp@-
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130 movew #131,sp@-
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131 trap #14
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132 lea sp@(12),sp
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133
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134 /* Restore registers space */
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135 addl #savamt,savptr
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136
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137 moveml sp@+,d0-d7/a0-a6
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139 clrw _SDL_MintAudio_mutex
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140 SDL_MintAudio_XbiosEnd:
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141 rte
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142
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143 /*--- DMA 8 bits interrupt vector ---*/
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144
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145 _SDL_MintAudio_Dma8Interrupt:
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146
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147 /* Reenable interrupts, so other interrupts can work */
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Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
148 movew #0x2300,sr
594422ab8f9f Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
149
594422ab8f9f Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
150 /* Clear service bit, so other MFP interrupts can work */
594422ab8f9f Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
151 bclr #5,0xfffffa0f:w
594422ab8f9f Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
152
594422ab8f9f Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
153 /* Check if we are not already running */
594422ab8f9f Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
154 tstw _SDL_MintAudio_mutex
2191
29e07f91bc1f Rename LockAudio,UnlockAudio to LockDevice,UnlockDevice. Also some small fixes
Patrice Mandin <patmandin@gmail.com>
parents: 2027
diff changeset
155 bne SDL_MintAudio_Dma8End
644
594422ab8f9f Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
156 notw _SDL_MintAudio_mutex
594422ab8f9f Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
157
594422ab8f9f Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
158 /* Swap buffers */
704
c4803992e09c Small bugfixes
Patrice Mandin <patmandin@gmail.com>
parents: 644
diff changeset
159 eorw #1,_SDL_MintAudio_numbuf
c4803992e09c Small bugfixes
Patrice Mandin <patmandin@gmail.com>
parents: 644
diff changeset
160
2027
d48ead2d2ba5 Save/restore FPU registers in interrupt
Patrice Mandin <patmandin@gmail.com>
parents: 1097
diff changeset
161 moveml d0-d1/a0-a1,sp@-
d48ead2d2ba5 Save/restore FPU registers in interrupt
Patrice Mandin <patmandin@gmail.com>
parents: 1097
diff changeset
162
d48ead2d2ba5 Save/restore FPU registers in interrupt
Patrice Mandin <patmandin@gmail.com>
parents: 1097
diff changeset
163 /* Save FPU if needed */
d48ead2d2ba5 Save/restore FPU registers in interrupt
Patrice Mandin <patmandin@gmail.com>
parents: 1097
diff changeset
164 tstw _SDL_MintAudio_hasfpu
d48ead2d2ba5 Save/restore FPU registers in interrupt
Patrice Mandin <patmandin@gmail.com>
parents: 1097
diff changeset
165 beqs SDL_MintAudio_Dma8_nofpu1
d48ead2d2ba5 Save/restore FPU registers in interrupt
Patrice Mandin <patmandin@gmail.com>
parents: 1097
diff changeset
166 .chip 68060
d48ead2d2ba5 Save/restore FPU registers in interrupt
Patrice Mandin <patmandin@gmail.com>
parents: 1097
diff changeset
167 fsave sp@-
d48ead2d2ba5 Save/restore FPU registers in interrupt
Patrice Mandin <patmandin@gmail.com>
parents: 1097
diff changeset
168 fmoveml fpcr/fpsr/fpiar,sp@-
d48ead2d2ba5 Save/restore FPU registers in interrupt
Patrice Mandin <patmandin@gmail.com>
parents: 1097
diff changeset
169 fmovemx fp0-fp7,sp@-
d48ead2d2ba5 Save/restore FPU registers in interrupt
Patrice Mandin <patmandin@gmail.com>
parents: 1097
diff changeset
170 .chip 68000
d48ead2d2ba5 Save/restore FPU registers in interrupt
Patrice Mandin <patmandin@gmail.com>
parents: 1097
diff changeset
171 SDL_MintAudio_Dma8_nofpu1:
644
594422ab8f9f Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
172
704
c4803992e09c Small bugfixes
Patrice Mandin <patmandin@gmail.com>
parents: 644
diff changeset
173 /* Callback */
c4803992e09c Small bugfixes
Patrice Mandin <patmandin@gmail.com>
parents: 644
diff changeset
174 jsr _SDL_MintAudio_Callback
c4803992e09c Small bugfixes
Patrice Mandin <patmandin@gmail.com>
parents: 644
diff changeset
175
2027
d48ead2d2ba5 Save/restore FPU registers in interrupt
Patrice Mandin <patmandin@gmail.com>
parents: 1097
diff changeset
176 /* Restore FPU if needed */
d48ead2d2ba5 Save/restore FPU registers in interrupt
Patrice Mandin <patmandin@gmail.com>
parents: 1097
diff changeset
177 tstw _SDL_MintAudio_hasfpu
d48ead2d2ba5 Save/restore FPU registers in interrupt
Patrice Mandin <patmandin@gmail.com>
parents: 1097
diff changeset
178 beqs SDL_MintAudio_Dma8_nofpu2
d48ead2d2ba5 Save/restore FPU registers in interrupt
Patrice Mandin <patmandin@gmail.com>
parents: 1097
diff changeset
179 .chip 68060
d48ead2d2ba5 Save/restore FPU registers in interrupt
Patrice Mandin <patmandin@gmail.com>
parents: 1097
diff changeset
180 fmovemx sp@+,fp0-fp7
d48ead2d2ba5 Save/restore FPU registers in interrupt
Patrice Mandin <patmandin@gmail.com>
parents: 1097
diff changeset
181 fmoveml sp@+,fpcr/fpsr/fpiar
d48ead2d2ba5 Save/restore FPU registers in interrupt
Patrice Mandin <patmandin@gmail.com>
parents: 1097
diff changeset
182 frestore sp@+
d48ead2d2ba5 Save/restore FPU registers in interrupt
Patrice Mandin <patmandin@gmail.com>
parents: 1097
diff changeset
183 .chip 68000
d48ead2d2ba5 Save/restore FPU registers in interrupt
Patrice Mandin <patmandin@gmail.com>
parents: 1097
diff changeset
184 SDL_MintAudio_Dma8_nofpu2:
d48ead2d2ba5 Save/restore FPU registers in interrupt
Patrice Mandin <patmandin@gmail.com>
parents: 1097
diff changeset
185
704
c4803992e09c Small bugfixes
Patrice Mandin <patmandin@gmail.com>
parents: 644
diff changeset
186 /* Set new buffer */
644
594422ab8f9f Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
187
704
c4803992e09c Small bugfixes
Patrice Mandin <patmandin@gmail.com>
parents: 644
diff changeset
188 moveq #0,d0
c4803992e09c Small bugfixes
Patrice Mandin <patmandin@gmail.com>
parents: 644
diff changeset
189
c4803992e09c Small bugfixes
Patrice Mandin <patmandin@gmail.com>
parents: 644
diff changeset
190 movew _SDL_MintAudio_numbuf,d0
c4803992e09c Small bugfixes
Patrice Mandin <patmandin@gmail.com>
parents: 644
diff changeset
191 lslw #2,d0
c4803992e09c Small bugfixes
Patrice Mandin <patmandin@gmail.com>
parents: 644
diff changeset
192 lea _SDL_MintAudio_audiobuf,a0
c4803992e09c Small bugfixes
Patrice Mandin <patmandin@gmail.com>
parents: 644
diff changeset
193 movel a0@(d0:w),d1
644
594422ab8f9f Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
194
594422ab8f9f Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
195 /* Modify DMA addresses */
594422ab8f9f Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
196 lea 0xffff8900:w,a0
594422ab8f9f Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
197
594422ab8f9f Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
198 moveb d1,a0@(0x07) /* Start address */
594422ab8f9f Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
199 rorl #8,d1
594422ab8f9f Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
200 moveb d1,a0@(0x05)
594422ab8f9f Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
201 rorl #8,d1
594422ab8f9f Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
202 moveb d1,a0@(0x03)
594422ab8f9f Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
203 swap d1
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 addl _SDL_MintAudio_audiosize,d1
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 moveb d1,a0@(0x13) /* End address */
594422ab8f9f Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
208 rorl #8,d1
594422ab8f9f Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
209 moveb d1,a0@(0x11)
594422ab8f9f Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
210 rorl #8,d1
594422ab8f9f Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
211 moveb d1,a0@(0x0f)
594422ab8f9f Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
212
2027
d48ead2d2ba5 Save/restore FPU registers in interrupt
Patrice Mandin <patmandin@gmail.com>
parents: 1097
diff changeset
213 moveml sp@+,d0-d1/a0-a1
644
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 clrw _SDL_MintAudio_mutex
594422ab8f9f Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
216 SDL_MintAudio_Dma8End:
594422ab8f9f Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
217 rte
594422ab8f9f Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
218
594422ab8f9f Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
219 /*--- STFA interrupt vector ---*/
594422ab8f9f Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
220
594422ab8f9f Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
221 STFA_SOUND_START = 6
594422ab8f9f Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
222 STFA_SOUND_END = STFA_SOUND_START+8
594422ab8f9f Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
223
594422ab8f9f Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
224 _SDL_MintAudio_StfaInterrupt:
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 /* Reenable interrupts, so other interrupts can work */
594422ab8f9f Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
227 movew #0x2300,sr
594422ab8f9f Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
228
594422ab8f9f Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
229 /* Check if we are not already running */
594422ab8f9f Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
230 tstw _SDL_MintAudio_mutex
594422ab8f9f Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
231 bnes SDL_MintAudio_StfaEnd
594422ab8f9f Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
232 notw _SDL_MintAudio_mutex
594422ab8f9f Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
233
594422ab8f9f Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
234 /* Swap buffers */
704
c4803992e09c Small bugfixes
Patrice Mandin <patmandin@gmail.com>
parents: 644
diff changeset
235 eorw #1,_SDL_MintAudio_numbuf
c4803992e09c Small bugfixes
Patrice Mandin <patmandin@gmail.com>
parents: 644
diff changeset
236
1093
d00b4d8508ab Save all registers on interrupt
Patrice Mandin <patmandin@gmail.com>
parents: 961
diff changeset
237 moveml d0-d7/a0-a6,sp@-
644
594422ab8f9f Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
238
2027
d48ead2d2ba5 Save/restore FPU registers in interrupt
Patrice Mandin <patmandin@gmail.com>
parents: 1097
diff changeset
239 /* Save FPU if needed */
d48ead2d2ba5 Save/restore FPU registers in interrupt
Patrice Mandin <patmandin@gmail.com>
parents: 1097
diff changeset
240 tstw _SDL_MintAudio_hasfpu
d48ead2d2ba5 Save/restore FPU registers in interrupt
Patrice Mandin <patmandin@gmail.com>
parents: 1097
diff changeset
241 beqs SDL_MintAudio_Stfa_nofpu1
d48ead2d2ba5 Save/restore FPU registers in interrupt
Patrice Mandin <patmandin@gmail.com>
parents: 1097
diff changeset
242 .chip 68060
d48ead2d2ba5 Save/restore FPU registers in interrupt
Patrice Mandin <patmandin@gmail.com>
parents: 1097
diff changeset
243 fsave sp@-
d48ead2d2ba5 Save/restore FPU registers in interrupt
Patrice Mandin <patmandin@gmail.com>
parents: 1097
diff changeset
244 fmoveml fpcr/fpsr/fpiar,sp@-
d48ead2d2ba5 Save/restore FPU registers in interrupt
Patrice Mandin <patmandin@gmail.com>
parents: 1097
diff changeset
245 fmovemx fp0-fp7,sp@-
d48ead2d2ba5 Save/restore FPU registers in interrupt
Patrice Mandin <patmandin@gmail.com>
parents: 1097
diff changeset
246 .chip 68000
d48ead2d2ba5 Save/restore FPU registers in interrupt
Patrice Mandin <patmandin@gmail.com>
parents: 1097
diff changeset
247 SDL_MintAudio_Stfa_nofpu1:
d48ead2d2ba5 Save/restore FPU registers in interrupt
Patrice Mandin <patmandin@gmail.com>
parents: 1097
diff changeset
248
704
c4803992e09c Small bugfixes
Patrice Mandin <patmandin@gmail.com>
parents: 644
diff changeset
249 /* Callback */
c4803992e09c Small bugfixes
Patrice Mandin <patmandin@gmail.com>
parents: 644
diff changeset
250 jsr _SDL_MintAudio_Callback
c4803992e09c Small bugfixes
Patrice Mandin <patmandin@gmail.com>
parents: 644
diff changeset
251
2027
d48ead2d2ba5 Save/restore FPU registers in interrupt
Patrice Mandin <patmandin@gmail.com>
parents: 1097
diff changeset
252 /* Restore FPU if needed */
d48ead2d2ba5 Save/restore FPU registers in interrupt
Patrice Mandin <patmandin@gmail.com>
parents: 1097
diff changeset
253 tstw _SDL_MintAudio_hasfpu
d48ead2d2ba5 Save/restore FPU registers in interrupt
Patrice Mandin <patmandin@gmail.com>
parents: 1097
diff changeset
254 beqs SDL_MintAudio_Stfa_nofpu2
d48ead2d2ba5 Save/restore FPU registers in interrupt
Patrice Mandin <patmandin@gmail.com>
parents: 1097
diff changeset
255 .chip 68060
d48ead2d2ba5 Save/restore FPU registers in interrupt
Patrice Mandin <patmandin@gmail.com>
parents: 1097
diff changeset
256 fmovemx sp@+,fp0-fp7
d48ead2d2ba5 Save/restore FPU registers in interrupt
Patrice Mandin <patmandin@gmail.com>
parents: 1097
diff changeset
257 fmoveml sp@+,fpcr/fpsr/fpiar
d48ead2d2ba5 Save/restore FPU registers in interrupt
Patrice Mandin <patmandin@gmail.com>
parents: 1097
diff changeset
258 frestore sp@+
d48ead2d2ba5 Save/restore FPU registers in interrupt
Patrice Mandin <patmandin@gmail.com>
parents: 1097
diff changeset
259 .chip 68000
d48ead2d2ba5 Save/restore FPU registers in interrupt
Patrice Mandin <patmandin@gmail.com>
parents: 1097
diff changeset
260 SDL_MintAudio_Stfa_nofpu2:
d48ead2d2ba5 Save/restore FPU registers in interrupt
Patrice Mandin <patmandin@gmail.com>
parents: 1097
diff changeset
261
704
c4803992e09c Small bugfixes
Patrice Mandin <patmandin@gmail.com>
parents: 644
diff changeset
262 /* Set new buffer */
644
594422ab8f9f Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
263
704
c4803992e09c Small bugfixes
Patrice Mandin <patmandin@gmail.com>
parents: 644
diff changeset
264 moveq #0,d0
c4803992e09c Small bugfixes
Patrice Mandin <patmandin@gmail.com>
parents: 644
diff changeset
265 movel _SDL_MintAudio_stfa,a1
c4803992e09c Small bugfixes
Patrice Mandin <patmandin@gmail.com>
parents: 644
diff changeset
266
c4803992e09c Small bugfixes
Patrice Mandin <patmandin@gmail.com>
parents: 644
diff changeset
267 movew _SDL_MintAudio_numbuf,d0
c4803992e09c Small bugfixes
Patrice Mandin <patmandin@gmail.com>
parents: 644
diff changeset
268 lslw #2,d0
c4803992e09c Small bugfixes
Patrice Mandin <patmandin@gmail.com>
parents: 644
diff changeset
269 lea _SDL_MintAudio_audiobuf,a0
c4803992e09c Small bugfixes
Patrice Mandin <patmandin@gmail.com>
parents: 644
diff changeset
270 movel a0@(d0:w),d1
644
594422ab8f9f Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
271
594422ab8f9f Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
272 /* Modify STFA replay buffers */
704
c4803992e09c Small bugfixes
Patrice Mandin <patmandin@gmail.com>
parents: 644
diff changeset
273 movel d1,a1@(STFA_SOUND_START)
644
594422ab8f9f Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
274 addl _SDL_MintAudio_audiosize,d1
704
c4803992e09c Small bugfixes
Patrice Mandin <patmandin@gmail.com>
parents: 644
diff changeset
275 movel d1,a1@(STFA_SOUND_END)
644
594422ab8f9f Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
276
1093
d00b4d8508ab Save all registers on interrupt
Patrice Mandin <patmandin@gmail.com>
parents: 961
diff changeset
277 moveml sp@+,d0-d7/a0-a6
644
594422ab8f9f Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
278
594422ab8f9f Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
279 clrw _SDL_MintAudio_mutex
594422ab8f9f Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
280 SDL_MintAudio_StfaEnd:
594422ab8f9f Atari MiNT: added more audio drivers
Patrice Mandin <patmandin@gmail.com>
parents:
diff changeset
281 rte