Mercurial > sdl-ios-xcode
diff src/video/ataricommon/SDL_xbiosinterrupt.S @ 820:0b9b4bf3c1e7
Important crash fix: system vectors for mouse/joystick were not restored
| author | Patrice Mandin <patmandin@gmail.com> |
|---|---|
| date | Sat, 14 Feb 2004 10:12:27 +0000 |
| parents | 9c6613983e85 |
| children | d9f3b5bb7870 |
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--- a/src/video/ataricommon/SDL_xbiosinterrupt.S Sat Feb 14 06:04:41 2004 +0000 +++ b/src/video/ataricommon/SDL_xbiosinterrupt.S Sat Feb 14 10:12:27 2004 +0000 @@ -34,6 +34,7 @@ .text .globl _SDL_AtariXbios_Install + .globl _SDL_AtariXbios_Restore .globl _SDL_AtariXbios_MouseVector .globl _SDL_AtariXbios_JoystickVector @@ -53,6 +54,7 @@ /* Save old mouse vector, set our routine */ + clrl oldmousevector movel sp@(8),d0 beqs no_new_mouse_vector movel a0@(16),oldmousevector @@ -61,6 +63,7 @@ /* Save old joystick vector, set our routine */ + clrl oldjoystickvector movel sp@(12),d0 beqs no_new_joystick_vector movel a0@(24),oldjoystickvector @@ -73,6 +76,35 @@ 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 @@ -138,4 +170,3 @@ .data .even .comm _SDL_AtariXbios_joystick,2*1 -