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comparison src/video/ataricommon/SDL_xbiosinterrupt.S @ 987:d9f3b5bb7870

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Do not use registers when not necessary
author Patrice Mandin <patmandin@gmail.com>
date Mon, 22 Nov 2004 20:36:59 +0000
parents 0b9b4bf3c1e7
children 0fb50bfaea7f
comparison
equal deleted inserted replaced
986:952ec1ddcb58 987:d9f3b5bb7870
111 .even 111 .even
112 .ascii "XBRA" 112 .ascii "XBRA"
113 .ascii "LSDL" 113 .ascii "LSDL"
114 .comm oldmousevector,4*1 114 .comm oldmousevector,4*1
115 _SDL_AtariXbios_MouseVector: 115 _SDL_AtariXbios_MouseVector:
116 moveml d0/a1,sp@- 116 movel d0,sp@-
117 117
118 /* Mouse buttons */ 118 /* Mouse buttons */
119 moveb (a0),d0 119 moveb (a0),d0
120 andw #3,d0 120 andw #3,d0
121 movew d0,_SDL_AtariXbios_mouseb 121 movew d0,_SDL_AtariXbios_mouseb
129 moveb a0@(2),d0 129 moveb a0@(2),d0
130 extw d0 130 extw d0
131 addw d0,_SDL_AtariXbios_mousey 131 addw d0,_SDL_AtariXbios_mousey
132 132
133 /* Jump through old vector */ 133 /* Jump through old vector */
134 movel oldmousevector,a1 134 movel sp@+,d0
135 jsr (a1)
136 135
137 moveml sp@+,d0/a1 136 movel oldmousevector,sp@-
138 rts 137 rts
139 138
140 .data 139 .data
141 .even 140 .even
142 .comm _SDL_AtariXbios_mousex,2*1 141 .comm _SDL_AtariXbios_mousex,2*1
151 .even 150 .even
152 .ascii "XBRA" 151 .ascii "XBRA"
153 .ascii "LSDL" 152 .ascii "LSDL"
154 .comm oldjoystickvector,4*1 153 .comm oldjoystickvector,4*1
155 _SDL_AtariXbios_JoystickVector: 154 _SDL_AtariXbios_JoystickVector:
156 moveml d0/a1,sp@- 155 movel d0,sp@-
157 156
158 /* New joystick state */ 157 /* New joystick state */
159 moveb a0@(1),d0 158 moveb a0@(1),d0
160 andw #0x8f,d0 159 andw #0x8f,d0
161 movew d0,_SDL_AtariXbios_joystick 160 movew d0,_SDL_AtariXbios_joystick
162 161
163 /* Jump through old vector */ 162 /* Jump through old vector */
164 movel oldjoystickvector,a1 163 movel sp@+,d0
165 jsr (a1)
166 164
167 moveml sp@+,d0/a1 165 movel oldjoystickvector,sp@-
168 rts 166 rts
169 167
170 .data 168 .data
171 .even 169 .even
172 .comm _SDL_AtariXbios_joystick,2*1 170 .comm _SDL_AtariXbios_joystick,2*1