Mercurial > sdl-ios-xcode

annotate src/video/ataricommon/SDL_ikbdinterrupt.S @ 3796:b19680c84cdf SDL-ryan-multiple-audio-device

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Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of the core and into the drivers where it belongs, and push generic responsibilities out of the drivers and into the core where they belong.
author Ryan C. Gordon <icculus@icculus.org>
date Wed, 04 Oct 2006 19:54:23 +0000
parents c9b51268668f
children 99210400e8b9
rev   line source
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2006 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 Lesser General Public
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7 License as published by the Free Software Foundation; either
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8 version 2.1 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 Lesser 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 Lesser General Public
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16 License along with this library; if not, write to the Free Software
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17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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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 * IKBD 6301 interrupt routine
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25 *
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26 * Patrice Mandin
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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_AtariIkbdInstall
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32 .globl _SDL_AtariIkbdUninstall
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33
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34 .globl _SDL_AtariIkbd_keyboard
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35 .globl _SDL_AtariIkbd_mouseb
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36 .globl _SDL_AtariIkbd_mousex
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37 .globl _SDL_AtariIkbd_mousey
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38 .globl _SDL_AtariIkbd_joystick
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39
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40 .globl _SDL_AtariIkbd_enabled
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41
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42 /*--- Install our IKBD vector ---*/
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43
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44 _SDL_AtariIkbdInstall:
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45 moveml d0-d1/a0-a1,sp@-
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46
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47 | Disable interrupts
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48
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49 movew #0x2700,sr
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50
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51 | Save MFP registers used for keyboard
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52
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53 lea 0xfffffa00:w,a0
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54 btst #6,a0@(0x09)
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55 sne ikbd_ierb
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56 btst #6,a0@(0x15)
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57 sne ikbd_imrb
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58
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59 | Set our routine
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60
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61 movel 0x118:w,old_ikbd
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62 movel #ikbd,0x118:w
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63 bset #6,0xfffffa09:w | IERB
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64 bset #6,0xfffffa15:w | IMRB
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65
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66 | Set mouse relative mode
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67
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68 moveb #8,0xfffffc02:w
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69
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70 | Reenable interrupts
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71
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72 movew #0x2300,sr
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73
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74 | Interrupts done
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75
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76 movew #0xffff,_SDL_AtariIkbd_enabled
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77
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78 moveml sp@+,d0-d1/a0-a1
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79 rts
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80
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81 /*--- Uninstall our IKBD vector ---*/
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82
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83 _SDL_AtariIkbdUninstall:
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84 movel a0,sp@-
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85
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86 | Disable interrupts
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88 movew #0x2700,sr
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89
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90 | Restore previous MFP registers
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91
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92 lea 0xfffffa00:w,a0
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93
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94 bclr #6,a0@(0x09)
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95 tstb ikbd_ierb
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96 beqs ikbd_restoreierb
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97 bset #6,a0@(0x09)
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98 ikbd_restoreierb:
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99
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100 bclr #6,a0@(0x15)
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101 tstb ikbd_imrb
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102 beqs ikbd_restoreimrb
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103 bset #6,a0@(0x15)
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104 ikbd_restoreimrb:
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105
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106 movel old_ikbd,0x118:w
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107
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108 | Clear keyboard buffer
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109
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110 lea 0xfffffc00:w,a0
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111 ikbd_videbuffer:
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112 btst #0,a0@
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113 beqs ikbd_finbuffer
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114 tstb a0@(0x02)
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115 bras ikbd_videbuffer
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116 ikbd_finbuffer:
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117
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118 | Reenable interrupts
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119
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120 movew #0x2300,sr
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121
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122 movel sp@+,a0
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123 rts
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124
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125 .bss
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126
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127 .even
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128 .comm ikbd_ierb,1
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129 .comm ikbd_imrb,1
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131 /*--- Our custom IKBD vector ---*/
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132
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133 .text
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134 .even
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135 .ascii "XBRA"
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136 .ascii "LSDL"
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137 .comm old_ikbd,4*1
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138 ikbd:
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139 | Check if source is IKBD or MIDI
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140 btst #0,0xfffffc00.w
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141 beqs ikbd_oldmidi
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142
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143 moveml d0-d1/a0,sp@-
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144 moveb 0xfffffc02:w,d0
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
145
1081
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parents: 305
diff changeset
146 | Joystick packet ?
281
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
147
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
148 cmpb #0xff,d0
1081
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parents: 305
diff changeset
149 beqs ikbd_yes_joystick
281
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
150
1081
369dcdb52d70 Call old interrupt when receiving MIDI stuff
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parents: 305
diff changeset
151 | Mouse packet ?
281
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
152
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
153 cmpb #0xf8,d0
1081
369dcdb52d70 Call old interrupt when receiving MIDI stuff
Patrice Mandin <patmandin@gmail.com>
parents: 305
diff changeset
154 bmis ikbd_no_mouse
281
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
155 cmpb #0xfc,d0
1081
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Patrice Mandin <patmandin@gmail.com>
parents: 305
diff changeset
156 bpls ikbd_no_mouse
281
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
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157
1082
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parents: 1081
diff changeset
158 | Mouse packet, byte #1
48436ffdf677 Avoid generating multiple key press/release messages for the same key
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parents: 1081
diff changeset
159
281
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
160 ikbd_yes_mouse:
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
161 andw #3,d0
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
162 movew d0,_SDL_AtariIkbd_mouseb
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
163
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
164 movel #ikbd_mousex,0x118:w
1081
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Patrice Mandin <patmandin@gmail.com>
parents: 305
diff changeset
165 bras ikbd_endit_stack
281
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
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166
1082
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parents: 1081
diff changeset
167 | Joystick packet, byte #1
48436ffdf677 Avoid generating multiple key press/release messages for the same key
Patrice Mandin <patmandin@gmail.com>
parents: 1081
diff changeset
168
281
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
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parents:
diff changeset
169 ikbd_yes_joystick:
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
170 movel #ikbd_joystick,0x118:w
1081
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parents: 305
diff changeset
171 bras ikbd_endit_stack
281
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
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172
1082
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diff changeset
173 | Keyboard press/release
48436ffdf677 Avoid generating multiple key press/release messages for the same key
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parents: 1081
diff changeset
174
281
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
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parents:
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175 ikbd_no_mouse:
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
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176 moveb d0,d1
1082
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Patrice Mandin <patmandin@gmail.com>
parents: 1081
diff changeset
177 lea _SDL_AtariIkbd_keyboard,a0
48436ffdf677 Avoid generating multiple key press/release messages for the same key
Patrice Mandin <patmandin@gmail.com>
parents: 1081
diff changeset
178 andw #0x7f,d1
48436ffdf677 Avoid generating multiple key press/release messages for the same key
Patrice Mandin <patmandin@gmail.com>
parents: 1081
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179 tas d0
48436ffdf677 Avoid generating multiple key press/release messages for the same key
Patrice Mandin <patmandin@gmail.com>
parents: 1081
diff changeset
180 spl a0@(0,d1:w)
1081
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diff changeset
181
369dcdb52d70 Call old interrupt when receiving MIDI stuff
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parents: 305
diff changeset
182 | End of interrupt
281
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parents:
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183
1081
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parents: 305
diff changeset
184 ikbd_endit_stack:
369dcdb52d70 Call old interrupt when receiving MIDI stuff
Patrice Mandin <patmandin@gmail.com>
parents: 305
diff changeset
185 moveml sp@+,d0-d1/a0
281
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
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186 ikbd_endit:
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Sam Lantinga <slouken@libsdl.org>
parents:
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187 bclr #6,0xfffffa11:w
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
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188 rte
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
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parents:
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189
1081
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diff changeset
190 | Call old MIDI interrupt
369dcdb52d70 Call old interrupt when receiving MIDI stuff
Patrice Mandin <patmandin@gmail.com>
parents: 305
diff changeset
191
369dcdb52d70 Call old interrupt when receiving MIDI stuff
Patrice Mandin <patmandin@gmail.com>
parents: 305
diff changeset
192 ikbd_oldmidi:
369dcdb52d70 Call old interrupt when receiving MIDI stuff
Patrice Mandin <patmandin@gmail.com>
parents: 305
diff changeset
193 movel old_ikbd,sp@-
369dcdb52d70 Call old interrupt when receiving MIDI stuff
Patrice Mandin <patmandin@gmail.com>
parents: 305
diff changeset
194 rts
369dcdb52d70 Call old interrupt when receiving MIDI stuff
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parents: 305
diff changeset
195
1082
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Patrice Mandin <patmandin@gmail.com>
parents: 1081
diff changeset
196 | Mouse packet, byte #2
48436ffdf677 Avoid generating multiple key press/release messages for the same key
Patrice Mandin <patmandin@gmail.com>
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diff changeset
197
281
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198 ikbd_mousex:
1082
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diff changeset
199
1081
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parents: 305
diff changeset
200 | Check if source is IKBD or MIDI
1110
b6fdf299a2f3 Revert back to 1.6 revision
Patrice Mandin <patmandin@gmail.com>
parents: 1109
diff changeset
201 btst #0,0xfffffc00.w
b6fdf299a2f3 Revert back to 1.6 revision
Patrice Mandin <patmandin@gmail.com>
parents: 1109
diff changeset
202 beqs ikbd_oldmidi
1081
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diff changeset
203
369dcdb52d70 Call old interrupt when receiving MIDI stuff
Patrice Mandin <patmandin@gmail.com>
parents: 305
diff changeset
204 movew d0,sp@-
281
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parents:
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205
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
206 moveb 0xfffffc02:w,d0
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
207 extw d0
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
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208 addw d0,_SDL_AtariIkbd_mousex
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parents:
diff changeset
209
1081
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parents: 305
diff changeset
210 movew sp@+,d0
281
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
211
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
212 movel #ikbd_mousey,0x118:w
1081
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Patrice Mandin <patmandin@gmail.com>
parents: 305
diff changeset
213 bras ikbd_endit
281
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214
1082
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diff changeset
215 | Mouse packet, byte #3
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diff changeset
216
281
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
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parents:
diff changeset
217 ikbd_mousey:
1082
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diff changeset
218
1081
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diff changeset
219 | Check if source is IKBD or MIDI
1110
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Patrice Mandin <patmandin@gmail.com>
parents: 1109
diff changeset
220 btst #0,0xfffffc00.w
b6fdf299a2f3 Revert back to 1.6 revision
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parents: 1109
diff changeset
221 beqs ikbd_oldmidi
1081
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diff changeset
222
369dcdb52d70 Call old interrupt when receiving MIDI stuff
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parents: 305
diff changeset
223 movew d0,sp@-
281
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
224
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
225 moveb 0xfffffc02:w,d0
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
226 extw d0
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parents:
diff changeset
227 addw d0,_SDL_AtariIkbd_mousey
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Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
228
1081
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diff changeset
229 movew sp@+,d0
281
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
230
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
231 movel #ikbd,0x118:w
1081
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Patrice Mandin <patmandin@gmail.com>
parents: 305
diff changeset
232 bras ikbd_endit
281
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
233
1082
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Patrice Mandin <patmandin@gmail.com>
parents: 1081
diff changeset
234 | Joystick packet, byte #2
48436ffdf677 Avoid generating multiple key press/release messages for the same key
Patrice Mandin <patmandin@gmail.com>
parents: 1081
diff changeset
235
281
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
236 ikbd_joystick:
1082
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parents: 1081
diff changeset
237
1081
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parents: 305
diff changeset
238 | Check if source is IKBD or MIDI
1110
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Patrice Mandin <patmandin@gmail.com>
parents: 1109
diff changeset
239 btst #0,0xfffffc00.w
b6fdf299a2f3 Revert back to 1.6 revision
Patrice Mandin <patmandin@gmail.com>
parents: 1109
diff changeset
240 beqs ikbd_oldmidi
1081
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Patrice Mandin <patmandin@gmail.com>
parents: 305
diff changeset
241
281
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
242 moveb 0xfffffc02:w,_SDL_AtariIkbd_joystick+1
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
243
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
244 movel #ikbd,0x118:w
1081
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Patrice Mandin <patmandin@gmail.com>
parents: 305
diff changeset
245 bras ikbd_endit
281
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
246
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
247 .data
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
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parents:
diff changeset
248
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
249 .even
305
9c6613983e85 Atari port cleanups from Patrice
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
250 _SDL_AtariIkbd_enabled:
9c6613983e85 Atari port cleanups from Patrice
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
251 .word 0
1081
369dcdb52d70 Call old interrupt when receiving MIDI stuff
Patrice Mandin <patmandin@gmail.com>
parents: 305
diff changeset
252
369dcdb52d70 Call old interrupt when receiving MIDI stuff
Patrice Mandin <patmandin@gmail.com>
parents: 305
diff changeset
253 .bss
369dcdb52d70 Call old interrupt when receiving MIDI stuff
Patrice Mandin <patmandin@gmail.com>
parents: 305
diff changeset
254
305
9c6613983e85 Atari port cleanups from Patrice
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
255 .even
281
c5010ab8ba35 Added initial support for Atari (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
256 .comm _SDL_AtariIkbd_keyboard,128
1081
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Patrice Mandin <patmandin@gmail.com>
parents: 305
diff changeset
257 .comm _SDL_AtariIkbd_mousex,2
369dcdb52d70 Call old interrupt when receiving MIDI stuff
Patrice Mandin <patmandin@gmail.com>
parents: 305
diff changeset
258 .comm _SDL_AtariIkbd_mousey,2
369dcdb52d70 Call old interrupt when receiving MIDI stuff
Patrice Mandin <patmandin@gmail.com>
parents: 305
diff changeset
259 .comm _SDL_AtariIkbd_mouseb,2
369dcdb52d70 Call old interrupt when receiving MIDI stuff
Patrice Mandin <patmandin@gmail.com>
parents: 305
diff changeset
260 .comm _SDL_AtariIkbd_joystick,2