diff options
| author | Hans-Christoph Steiner <eighthave@users.sourceforge.net> | 2005-12-15 07:26:47 +0000 |
|---|---|---|
| committer | Hans-Christoph Steiner <eighthave@users.sourceforge.net> | 2005-12-15 07:26:47 +0000 |
| commit | 37b6643df2df7d784a31ca73f7bb90dc109c2401 (patch) | |
| tree | a8664e5adcfcb60cae136063d627549ecb76619b /system/mmx/pixel_rand_s16.s | |
| parent | c50ce0e0217ea07e2d450add2ab29cecea66fa96 (diff) | |
removing PDP source (except debian files) before import of PDP 0.12.4
svn path=/trunk/externals/pdp/; revision=4217
Diffstat (limited to 'system/mmx/pixel_rand_s16.s')
| -rw-r--r-- | system/mmx/pixel_rand_s16.s | 76 |
1 files changed, 0 insertions, 76 deletions
diff --git a/system/mmx/pixel_rand_s16.s b/system/mmx/pixel_rand_s16.s deleted file mode 100644 index 649400b..0000000 --- a/system/mmx/pixel_rand_s16.s +++ /dev/null @@ -1,76 +0,0 @@ -# Pure Data Packet mmx routine. -# Copyright (c) by Tom Schouten <pdp@zzz.kotnet.org> -# -# This program is free software; you can redistribute it and/or modify -# it under the terms of the GNU General Public License as published by -# the Free Software Foundation; either version 2 of the License, or -# (at your option) any later version. -# -# This program 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 General Public License for more details. -# -# You should have received a copy of the GNU General Public License -# along with this program; if not, write to the Free Software -# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. -# -.globl pixel_rand_s16 -.type pixel_rand_s16,@function - -# mmx rgba pixel gain -# void pixel_rand_s16(int *dst, nb_4pixel_vectors, short int random_seed[4]) - -pixel_rand_s16: - pushl %ebp - movl %esp, %ebp - push %esi - push %edi - - movl 16(%ebp), %esi # int16[4] array of random seeds - movl 8(%ebp), %edi # dst array - movl 12(%ebp), %ecx # pixel count - - movq (%esi), %mm6 - - - pcmpeqw %mm3, %mm3 - psrlw $15, %mm3 # get bit mask 4 times 0x0001 - - .align 16 - .loop_rand: - -# prefetch 128(%esi) - - - movq %mm6, %mm4 # get random vector - psrlw $15, %mm4 # get first component - movq %mm6, %mm5 - psrlw $14, %mm5 # get second component - pxor %mm5, %mm4 - movq %mm6, %mm5 - psrlw $12, %mm5 # get third component - pxor %mm5, %mm4 - movq %mm6, %mm5 - psrlw $3, %mm5 # get forth component - pxor %mm5, %mm4 - - psllw $1, %mm6 # shift left original random vector - pand %mm3, %mm4 # isolate new bit - por %mm4, %mm6 # combine into new random vector - - movq %mm6, (%edi) - addl $8, %edi - decl %ecx - jnz .loop_rand # loop - - - movq %mm6, (%esi) # store random seeds - - emms - - pop %edi - pop %esi - leave - ret - |