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reactos/lib/3rdparty/libmpg123/synth_3dnow.S
Amine Khaldi 527f2f9057 [SHELL/EXPERIMENTS] 
* Create a branch for some evul shell experiments.

svn path=/branches/shell-experiments/; revision=61927
2014-02-02 19:37:27 +00:00

318 lines
6.5 KiB
ArmAsm
Raw Blame History

/*
decode_3dnow.s - 3DNow! optimized synth_1to1()
copyright ?-2007 by the mpg123 project - free software under the terms of the LGPL 2.1
see COPYING and AUTHORS files in distribution or http://mpg123.org
initially written by Syuuhei Kashiyama
This code based 'decode_3dnow.s' by Syuuhei Kashiyama
<squash@mb.kcom.ne.jp>,only two types of changes have been made:
- remove PREFETCH instruction for speedup
- change function name for support 3DNow! automatic detect
- femms moved to before 'call dct64_3dnow'
You can find Kashiyama's original 3dnow! support patch
(for mpg123-0.59o) at
http://user.ecc.u-tokyo.ac.jp/~g810370/linux-simd/ (Japanese).
by KIMURA Takuhiro <kim@hannah.ipc.miyakyo-u.ac.jp> - until 31.Mar.1999
<kim@comtec.co.jp> - after 1.Apr.1999
Replacement of synth_1to1() with AMD's 3DNow! SIMD operations support
Syuuhei Kashiyama <squash@mb.kcom.ne.jp>
The author of this program disclaim whole expressed or implied
warranties with regard to this program, and in no event shall the
author of this program liable to whatever resulted from the use of
this program. Use it at your own risk.
*/
#include "mangle.h"
#ifdef ACCURATE_ROUNDING
#ifndef __APPLE__
.section .rodata
#else
.data
#endif
ALIGN8
max_s16:
.long 1191181824 /* 32767.0 */
.long 1191181824
min_s16:
.long -956301312 /* -32768.0 */
.long -956301312
ftoi_magic:
.long 1262485504 /* 2^23 + 2^22 */
.long 1262485504
#endif
.text
ALIGN16
.globl ASM_NAME(synth_1to1_3dnow_asm)
/* int synth_1to1_3dnow_asm(real *bandPtr, int channel, unsigned char *out, unsigned char *buffs, int *bo, real *decwin); */
ASM_NAME(synth_1to1_3dnow_asm):
subl $24,%esp
pushl %ebp
pushl %edi
xorl %ebp,%ebp
pushl %esi
pushl %ebx
/* stack old: 0=ebx 4=esi 8=edi 12=ebp 16,20,24,28,32,36=local 40=back 44=bandptr 48=channel 52=out 56=pnt */
/* stack new: 0=ebx 4=esi 8=edi 12=ebp 16,20,24,28,32,36=local 40=back 44=bandptr 48=channel 52=out 56=buffs 60=bo 64=decwin */
#define OUT 52(%esp)
#define CHANNEL 48(%esp)
#define BANDPTR 44(%esp)
#define BUFFS 56(%esp)
#define BO 60(%esp)
#define DECWIN 64(%esp)
#define LOCAL0 16(%esp)
#define LOCAL1 20(%esp)
#define LOCAL5 36(%esp)
movl OUT,%esi
movl %esi,LOCAL0 /* save buffer start (samples pointer) to another local var */
movl CHANNEL,%ebx
movl BO,%esi /* bo address */
movl (%esi),%edx /* bo value */
femms
testl %ebx,%ebx
jne .L26
/* if(!channel) */
decl %edx /* --bo */
andl $15,%edx
movl %edx,(%esi) /* save bo */
movl BUFFS,%ecx
jmp .L27
.L26: /* if(channel) */
addl $2,LOCAL0 /* samples++ */
movl BUFFS,%ecx
addl $2176,%ecx
.L27:
/* edx (and it's lower end) still holds bo value */
testb $1,%dl /* bo & 0x1 */
je .L28
movl %edx,LOCAL5
movl %ecx,%ebx
movl BANDPTR,%esi
movl %edx,%edi
pushl %esi
sall $2,%edi
movl %ebx,%eax
movl %edi,24(%esp) /* LOCAL1, actually */
addl %edi,%eax
pushl %eax
movl %edx,%eax
incl %eax
andl $15,%eax
leal 1088(,%eax,4),%eax
addl %ebx,%eax
pushl %eax
call ASM_NAME(dct64_3dnow)
addl $12,%esp
jmp .L29
.L28:
leal 1(%edx),%esi
movl BANDPTR,%edi
movl %esi,LOCAL5
leal 1092(%ecx,%edx,4),%eax
pushl %edi
leal 1088(%ecx),%ebx
pushl %eax
sall $2,%esi
leal (%ecx,%edx,4),%eax
pushl %eax
call ASM_NAME(dct64_3dnow)
addl $12,%esp
movl %esi,LOCAL1
.L29:
movl DECWIN,%edx
addl $64,%edx
movl $16,%ecx
subl LOCAL1,%edx
movl LOCAL0,%edi
pcmpeqb %mm7,%mm7
pslld $31,%mm7
movq (%edx),%mm0
movq (%ebx),%mm1
ALIGN32
.L33:
movq 8(%edx),%mm3
pfmul %mm1,%mm0
movq 8(%ebx),%mm4
movq 16(%edx),%mm5
pfmul %mm4,%mm3
movq 16(%ebx),%mm6
pfadd %mm3,%mm0
movq 24(%edx),%mm1
pfmul %mm6,%mm5
movq 24(%ebx),%mm2
pfadd %mm5,%mm0
movq 32(%edx),%mm3
pfmul %mm2,%mm1
movq 32(%ebx),%mm4
pfadd %mm1,%mm0
movq 40(%edx),%mm5
pfmul %mm4,%mm3
movq 40(%ebx),%mm6
pfadd %mm3,%mm0
movq 48(%edx),%mm1
pfmul %mm6,%mm5
movq 48(%ebx),%mm2
pfadd %mm0,%mm5
movq 56(%edx),%mm3
pfmul %mm1,%mm2
movq 56(%ebx),%mm4
pfadd %mm5,%mm2
addl $64,%ebx
subl $-128,%edx
movq (%edx),%mm0
pfmul %mm4,%mm3
movq (%ebx),%mm1
pfadd %mm3,%mm2
movq %mm2,%mm3
psrlq $32,%mm3
pfsub %mm3,%mm2
incl %ebp
#ifdef ACCURATE_ROUNDING
pfmin (max_s16),%mm2
pfmax (min_s16),%mm2
pfadd (ftoi_magic),%mm2
#else
pf2id %mm2,%mm2
packssdw %mm2,%mm2
#endif
movd %mm2,%eax
movw %ax,0(%edi)
addl $4,%edi
decl %ecx
jnz .L33
movd (%ebx),%mm0
movd (%edx),%mm1
punpckldq 8(%ebx),%mm0
punpckldq 8(%edx),%mm1
movd 16(%ebx),%mm3
movd 16(%edx),%mm4
pfmul %mm1,%mm0
punpckldq 24(%ebx),%mm3
punpckldq 24(%edx),%mm4
movd 32(%ebx),%mm5
movd 32(%edx),%mm6
pfmul %mm4,%mm3
punpckldq 40(%ebx),%mm5
punpckldq 40(%edx),%mm6
pfadd %mm3,%mm0
movd 48(%ebx),%mm1
movd 48(%edx),%mm2
pfmul %mm6,%mm5
punpckldq 56(%ebx),%mm1
punpckldq 56(%edx),%mm2
pfadd %mm5,%mm0
pfmul %mm2,%mm1
pfadd %mm1,%mm0
pfacc %mm1,%mm0
#ifdef ACCURATE_ROUNDING
pfmin (max_s16),%mm0
pfmax (min_s16),%mm0
pfadd (ftoi_magic),%mm0
#else
pf2id %mm0,%mm0
packssdw %mm0,%mm0
#endif
movd %mm0,%eax
movw %ax,0(%edi)
incl %ebp
movl LOCAL5,%esi
addl $-64,%ebx
movl $15,%ebp
addl $4,%edi
leal -128(%edx,%esi,8),%edx
movl $15,%ecx
movd (%ebx),%mm0
movd -4(%edx),%mm1
punpckldq 4(%ebx),%mm0
punpckldq -8(%edx),%mm1
ALIGN32
.L46:
movd 8(%ebx),%mm3
movd -12(%edx),%mm4
pfmul %mm1,%mm0
punpckldq 12(%ebx),%mm3
punpckldq -16(%edx),%mm4
movd 16(%ebx),%mm5
movd -20(%edx),%mm6
pfmul %mm4,%mm3
punpckldq 20(%ebx),%mm5
punpckldq -24(%edx),%mm6
pfadd %mm3,%mm0
movd 24(%ebx),%mm1
movd -28(%edx),%mm2
pfmul %mm6,%mm5
punpckldq 28(%ebx),%mm1
punpckldq -32(%edx),%mm2
pfadd %mm5,%mm0
movd 32(%ebx),%mm3
movd -36(%edx),%mm4
pfmul %mm2,%mm1
punpckldq 36(%ebx),%mm3
punpckldq -40(%edx),%mm4
pfadd %mm1,%mm0
movd 40(%ebx),%mm5
movd -44(%edx),%mm6
pfmul %mm4,%mm3
punpckldq 44(%ebx),%mm5
punpckldq -48(%edx),%mm6
pfadd %mm3,%mm0
movd 48(%ebx),%mm1
movd -52(%edx),%mm2
pfmul %mm6,%mm5
punpckldq 52(%ebx),%mm1
punpckldq -56(%edx),%mm2
pfadd %mm0,%mm5
movd 56(%ebx),%mm3
movd -60(%edx),%mm4
pfmul %mm2,%mm1
punpckldq 60(%ebx),%mm3
punpckldq (%edx),%mm4
pfadd %mm1,%mm5
addl $-128,%edx
addl $-64,%ebx
movd (%ebx),%mm0
movd -4(%edx),%mm1
pfmul %mm4,%mm3
punpckldq 4(%ebx),%mm0
punpckldq -8(%edx),%mm1
pfadd %mm5,%mm3
pfacc %mm3,%mm3
incl %ebp
pxor %mm7,%mm3
#ifdef ACCURATE_ROUNDING
pfmin (max_s16),%mm3
pfmax (min_s16),%mm3
pfadd (ftoi_magic),%mm3
#else
pf2id %mm3,%mm3
packssdw %mm3,%mm3
#endif
movd %mm3,%eax
movw %ax,(%edi)
addl $4,%edi
decl %ecx
jnz .L46
femms
movl %ebp,%eax
popl %ebx
popl %esi
popl %edi
popl %ebp
addl $24,%esp
ret
NONEXEC_STACK
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