diff options
Diffstat (limited to 'distrib/sdl-1.2.12/src/video/riscos/SDL_riscosASM.S')
| -rw-r--r-- | distrib/sdl-1.2.12/src/video/riscos/SDL_riscosASM.S | 116 |
1 files changed, 0 insertions, 116 deletions
diff --git a/distrib/sdl-1.2.12/src/video/riscos/SDL_riscosASM.S b/distrib/sdl-1.2.12/src/video/riscos/SDL_riscosASM.S deleted file mode 100644 index 2de0ceb..0000000 --- a/distrib/sdl-1.2.12/src/video/riscos/SDL_riscosASM.S +++ /dev/null @@ -1,116 +0,0 @@ -; -; SDL - Simple DirectMedia Layer -; Copyright (C) 1997-2004 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 -; -; Assembler routines for RISC OS display -; - - AREA |C$$CODE| - - EXPORT |RISCOS_Put32| - -; Display 32bpp to 32bpp, 1:1 -; -; Code provided by Adrain Lees -; -; entry a1 -> destination -; a2 = dest width in pixels -; a3 = dest line length in bytes -; a4 = dest height in scanlines -; arg5 -> source -; arg6 = byte offset from end of source line to start of next - -Arg5 * 10*4 -Arg6 * Arg5+4 - -RISCOS_Put32 ROUT - STMFD sp!,{a2,v1-v6,sl,fp,lr} - LDR ip,[sp,#Arg5] - MOV lr,a1 - B ucp64lp - -00 ;tail strip of 1-15 pixels - - LDR v1,[ip],#4 -01 SUBS a2,a2,#1 - STR v1,[lr],#4 - LDRHI v1,[ip],#4 - BHI %01 - B %02 - -ucp64end ADDS a2,a2,#16 - BNE %00 - -02 SUBS a4,a4,#1 ;height-- - LDRHI v1,[sp,#Arg6] - LDRHI a2,[sp] ;reload width - BLS %03 - - ;move to start of next scanline - - ADD lr,a1,a3 - ADD a1,a1,a3 - ADD ip,ip,v1 - -ucp64lp SUBS a2,a2,#16 - BLO ucp64end - - PLD [ip,#64] - - LDR v1,[ip],#4 - LDR v2,[ip],#4 - LDR v3,[ip],#4 - LDR v4,[ip],#4 - LDR v5,[ip],#4 - LDR v6,[ip],#4 - LDR sl,[ip],#4 - LDR fp,[ip],#4 - STR v1,[lr],#4 - STR v2,[lr],#4 - STR v3,[lr],#4 - STR v4,[lr],#4 - STR v5,[lr],#4 - STR v6,[lr],#4 - STR sl,[lr],#4 - STR fp,[lr],#4 - - PLD [ip,#64] - - LDR v1,[ip],#4 - LDR v2,[ip],#4 - LDR v3,[ip],#4 - LDR v4,[ip],#4 - LDR v5,[ip],#4 - LDR v6,[ip],#4 - LDR sl,[ip],#4 - LDR fp,[ip],#4 - STR v1,[lr],#4 - STR v2,[lr],#4 - STR v3,[lr],#4 - STR v4,[lr],#4 - STR v5,[lr],#4 - STR v6,[lr],#4 - STR sl,[lr],#4 - STR fp,[lr],#4 - - B ucp64lp - -03 LDMFD sp!,{a2,v1-v6,sl,fp,pc} - |