Mercurial > sdl-ios-xcode
view src/video/ataricommon/SDL_xbiosinterrupt.S @ 956:4263beff9e38
Date: Mon, 30 Aug 2004 18:20:25 +0200
From: Joost Baas
Subject: why call arts artsc?
I, and a few other people at the mplayer-docs-mailinglist were wondering why
you decided to call arts artsc. I understand usually users have nothing to do
with libsdl, just developers, but because you can choose the audio-driver
being used by mplayer, one of which is sdl, and you can also choose the sdl
subdriver, it is necessary to have a well-known or logical name. artsc is not
the logical choice, and it's very hard to look up the right name if you don't
know what you're looking for.
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Fri, 17 Sep 2004 13:25:06 +0000 |
| parents | 0b9b4bf3c1e7 |
| children | d9f3b5bb7870 |
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/* SDL - Simple DirectMedia Layer Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002 Sam Lantinga This library is free software; you can redistribute it and/or modify it under the terms of the GNU Library General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public License for more details. You should have received a copy of the GNU Library General Public License along with this library; if not, write to the Free Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA Sam Lantinga slouken@libsdl.org */ #ifdef SAVE_RCSID static char rcsid = "@(#) $Id$"; #endif /* * XBIOS mouse & joystick vectors * * Patrice Mandin */ .text .globl _SDL_AtariXbios_Install .globl _SDL_AtariXbios_Restore .globl _SDL_AtariXbios_MouseVector .globl _SDL_AtariXbios_JoystickVector .globl _SDL_AtariXbios_mouseb .globl _SDL_AtariXbios_mousex .globl _SDL_AtariXbios_mousey .globl _SDL_AtariXbios_joystick /*--- Vector installer ---*/ _SDL_AtariXbios_Install: movel sp@(4),a0 /* Stop interrupts */ movew #0x2700,sr /* Save old mouse vector, set our routine */ clrl oldmousevector movel sp@(8),d0 beqs no_new_mouse_vector movel a0@(16),oldmousevector movel d0,a0@(16) no_new_mouse_vector: /* Save old joystick vector, set our routine */ clrl oldjoystickvector movel sp@(12),d0 beqs no_new_joystick_vector movel a0@(24),oldjoystickvector movel d0,a0@(24) no_new_joystick_vector: /* Restart interrupts */ movew #0x2300,sr rts /*--- Vector restorer ---*/ _SDL_AtariXbios_Restore: movel sp@(4),a0 /* Stop interrupts */ movew #0x2700,sr /* Restore mouse vector */ movel oldmousevector,d0 beqs no_restore_mouse movel d0,a0@(16) no_restore_mouse: /* Restore joystick vector */ movel oldjoystickvector,d0 beqs no_restore_joystick movel d0,a0@(24) no_restore_joystick: /* Restart interrupts */ movew #0x2300,sr rts /*--- Our mouse vector ---*/ .text .even .ascii "XBRA" .ascii "LSDL" .comm oldmousevector,4*1 _SDL_AtariXbios_MouseVector: moveml d0/a1,sp@- /* Mouse buttons */ moveb (a0),d0 andw #3,d0 movew d0,_SDL_AtariXbios_mouseb /* X movement */ moveb a0@(1),d0 extw d0 addw d0,_SDL_AtariXbios_mousex /* Y movement */ moveb a0@(2),d0 extw d0 addw d0,_SDL_AtariXbios_mousey /* Jump through old vector */ movel oldmousevector,a1 jsr (a1) moveml sp@+,d0/a1 rts .data .even .comm _SDL_AtariXbios_mousex,2*1 .even .comm _SDL_AtariXbios_mousey,2*1 .even .comm _SDL_AtariXbios_mouseb,2*1 /*--- Our joystick vector ---*/ .text .even .ascii "XBRA" .ascii "LSDL" .comm oldjoystickvector,4*1 _SDL_AtariXbios_JoystickVector: moveml d0/a1,sp@- /* New joystick state */ moveb a0@(1),d0 andw #0x8f,d0 movew d0,_SDL_AtariXbios_joystick /* Jump through old vector */ movel oldjoystickvector,a1 jsr (a1) moveml sp@+,d0/a1 rts .data .even .comm _SDL_AtariXbios_joystick,2*1