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Partial loops unrolling

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git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@1260 b3059339-0415-0410-9bf9-f77b7e298cf2
This commit is contained in:
nick 2001-07-03 09:25:16 +00:00
parent 58075a0621
commit 978c569da2
1 changed files with 115 additions and 13 deletions
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128
mp3lib/decode_MMX.s
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@ -3,9 +3,15 @@
# See ChangeLog of mpg123-0.59s-pre.1 for detail
# Applied to mplayer by Nick Kurshev <nickols_k@mail.ru>
#
# TODO: Partial loops unrolling and removing MOVW insn.
# Local ChangeLog:
# - Partial loops unrolling and removing MOVW insn from loops
#
.data
.align 8
null_one: .long 0x0000ffff, 0x0000ffff
one_null: .long 0xffff0000, 0xffff0000
.text
.globl synth_1to1_MMX_s
@ -49,9 +55,62 @@ synth_1to1_MMX_s:
addl $12,%esp
leal 1(%ebx), %ecx
subl %ebp,%ebx
pushl %ecx
leal decwins(%ebx,%ebx,1), %edx
shrl $1, %ecx
.align 16
.L3:
movq (%edx),%mm0
movq 64(%edx),%mm4
pmaddwd (%esi),%mm0
pmaddwd 32(%esi),%mm4
movq 8(%edx),%mm1
movq 72(%edx),%mm5
pmaddwd 8(%esi),%mm1
pmaddwd 40(%esi),%mm5
movq 16(%edx),%mm2
movq 80(%edx),%mm6
pmaddwd 16(%esi),%mm2
pmaddwd 48(%esi),%mm6
movq 24(%edx),%mm3
movq 88(%edx),%mm7
pmaddwd 24(%esi),%mm3
pmaddwd 56(%esi),%mm7
paddd %mm1,%mm0
paddd %mm5,%mm4
paddd %mm2,%mm0
paddd %mm6,%mm4
paddd %mm3,%mm0
paddd %mm7,%mm4
movq %mm0,%mm1
movq %mm4,%mm5
psrlq $32,%mm1
psrlq $32,%mm5
paddd %mm1,%mm0
paddd %mm5,%mm4
psrad $13,%mm0
psrad $13,%mm4
packssdw %mm0,%mm0
packssdw %mm4,%mm4
movq (%edi), %mm1
punpckldq %mm4, %mm0
pand one_null, %mm1
pand null_one, %mm0
por %mm0, %mm1
movq %mm1,(%edi)
leal 64(%esi),%esi
leal 128(%edx),%edx
leal 8(%edi),%edi
decl %ecx
jnz .L3
popl %ecx
andl $1, %ecx
jecxz .next_loop
movq (%edx),%mm0
pmaddwd (%esi),%mm0
movq 8(%edx),%mm1
@ -70,17 +129,65 @@ synth_1to1_MMX_s:
packssdw %mm0,%mm0
movd %mm0,%eax
movw %ax, (%edi)
leal 32(%esi),%esi
leal 64(%edx),%edx
leal 4(%edi),%edi
decl %ecx
jnz .L3
.next_loop:
subl $64,%esi
movl $15,%ecx
movl $7,%ecx
.align 16
.L4:
movq (%edx),%mm0
movq 64(%edx),%mm4
pmaddwd (%esi),%mm0
pmaddwd -32(%esi),%mm4
movq 8(%edx),%mm1
movq 72(%edx),%mm5
pmaddwd 8(%esi),%mm1
pmaddwd -24(%esi),%mm5
movq 16(%edx),%mm2
movq 80(%edx),%mm6
pmaddwd 16(%esi),%mm2
pmaddwd -16(%esi),%mm6
movq 24(%edx),%mm3
movq 88(%edx),%mm7
pmaddwd 24(%esi),%mm3
pmaddwd -8(%esi),%mm7
paddd %mm1,%mm0
paddd %mm5,%mm4
paddd %mm2,%mm0
paddd %mm6,%mm4
paddd %mm3,%mm0
paddd %mm7,%mm4
movq %mm0,%mm1
movq %mm4,%mm5
psrlq $32,%mm1
psrlq $32,%mm5
paddd %mm0,%mm1
paddd %mm4,%mm5
psrad $13,%mm1
psrad $13,%mm5
packssdw %mm1,%mm1
packssdw %mm5,%mm5
psubd %mm0,%mm0
psubd %mm4,%mm4
psubsw %mm1,%mm0
psubsw %mm5,%mm4
movq (%edi), %mm1
punpckldq %mm4, %mm0
pand one_null, %mm1
pand null_one, %mm0
por %mm0, %mm1
movq %mm1,(%edi)
subl $64,%esi
addl $128,%edx
leal 8(%edi),%edi
decl %ecx
jnz .L4
movq (%edx),%mm0
pmaddwd (%esi),%mm0
movq 8(%edx),%mm1
@ -102,11 +209,6 @@ synth_1to1_MMX_s:
movd %mm0,%eax
movw %ax,(%edi)
subl $32,%esi
addl $64,%edx
leal 4(%edi),%edi
decl %ecx
jnz .L4
emms
popl %ebx
popl %esi