SDL_xbiosinterrupt.S
资源名称:NETVIDEO.rar [点击查看]
上传用户:sun1608
上传日期:2007-02-02
资源大小:6116k
文件大小:3k
源码类别:
流媒体/Mpeg4/MP4
开发平台:
Visual C++
- /*
- 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: SDL_xbiosinterrupt.S,v 1.1 2002/04/22 21:38:04 wmay Exp $";
- #endif
- /*
- * XBIOS mouse & joystick vectors
- *
- * Patrice Mandin
- */
- .text
- .globl _SDL_AtariXbios_Install
- .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 */
- 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 */
- 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
- /*--- 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